A genus of gram-negative bacteria which are obligately intracellular endosymbionts of APHIDS. The bacteria are found within specialized cells in the aphid body cavity.
A family (Aphididae) of small insects, in the suborder Sternorrhyncha, that suck the juices of plants. Important genera include Schizaphis and Myzus. The latter is known to carry more than 100 virus diseases between plants.
The relationship between two different species of organisms that are interdependent; each gains benefits from the other or a relationship between different species where both of the organisms in question benefit from the presence of the other.
An enzyme that catalyzes the formation of anthranilate (o-aminobenzoate) and pyruvic acid from chorismate and glutamine. Anthranilate is the biosynthetic precursor of tryptophan and numerous secondary metabolites, including inducible plant defense compounds. EC 4.1.3.27.
The genetic complement of a BACTERIA as represented in its DNA.
A genus of plant viruses that infects both monocotyledonous and dicotyledonous plants. Its organisms are persistently transmitted by aphids, and weeds may provide reservoirs of infection.
A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in the natural environment (soil, water, and plant surfaces) or as an opportunistic human pathogen.
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.
Amino acids that are not synthesized by the human body in amounts sufficient to carry out physiological functions. They are obtained from dietary foodstuffs.
A group I chaperonin protein that forms the barrel-like structure of the chaperonin complex. It is an oligomeric protein with a distinctive structure of fourteen subunits, arranged in two rings of seven subunits each. The protein was originally studied in BACTERIA where it is commonly referred to as GroEL protein.
The amount of DNA (or RNA) in one copy of a genome.

Phosphocarrier proteins in an intracellular symbiotic bacterium of aphids. (1/120)

A GroEL homolog produced by Buchnera, an intracellular symbiotic bacterium of aphids, is not only a molecular chaperone but also a novel phosphocarrier protein, suggesting that this protein plays a role in a signal transducing system specific to bacteria living in an intracellular environment. This prompted us to look into phosphocarrier proteins of Buchnera that may be shared in common with other bacteria. As a result, no evidence was obtained for the presence of sensor kinases of the two-component system in Buchnera, which are found in many bacteria. It is possible that the lack of sensor kinases is compensated for by the mulitifunctional GroEL homolog in this symbiotic bacteria. In contrast, we successfully identified three phosphotransferase system genes, ptsH, ptsI, and crr in Buchnera, and provide evidence for their active expression. While the deduced amino acid sequences of these gene products, histidine-containing phosphocarrier protein, Enzyme I, and Enzyme III were similar to their counterparts in Escherichia coli, the predicted isoelectric points of the Buchnera proteins were strikingly higher. It was also suggested that Buchnera Enzyme I, when produced in E. coli, is able to accept the phosphoryl group from phosphoenolpyruvate, but not from ATP.  (+info)

Sequence evolution in bacterial endosymbionts having extreme base compositions. (2/120)

A major limitation on ability to reconstruct bacterial evolution is the lack of dated ancestors that might be used to evaluate and calibrate molecular clocks. Vertically transmitted symbionts that have cospeciated with animal hosts offer a firm basis for calibrating sequence evolution in bacteria, since fossils of the hosts can be used to date divergence events. Sequences for a functionally diverse set of genes have been obtained for bacterial endosymbionts (Buchnera) from two pairs of aphid host species, each pair diverging 50-70 MYA. Using these dates and estimated numbers of Buchnera generations per year, we calculated rates of base substitution for neutral and selected sites of protein-coding genes and overall rates for rRNA genes. Buchnera shows homogeneity among loci with regard to synonymous rate. The Buchnera synonymous rate is about twice that for low-codon-bias genes of Escherichia coli-Salmonella typhimurium on an absolute timescale, and fourfold higher on a generational timescale. Nonsynonymous substitutions show a greater rate disparity in favor of Buchnera, a result consistent with a genomewide decrease in selection efficiency in Buchnera. Ratios of synonymous to nonsynonymous substitutions differ for the two pairs of Buchnera, indicating that selection efficiency varies among lineages. Like numerous other intracellular bacteria, such as Rickettsia and Wolbachia, Buchnera has accumulated amino acids with codons rich in A or T. Phylogenetic reconstruction of amino acid replacements indicates that replacements yielding increased A + T predominated early in the evolution of Buchnera, with the trend slowing or stopping during the last 50 Myr. This suggests that base composition in Buchnera has approached a limit enforced by selective constraint acting on protein function.  (+info)

Identifying the determinants in the equatorial domain of Buchnera GroEL implicated in binding Potato leafroll virus. (3/120)

Luteoviruses avoid degradation in the hemolymph of their aphid vector by interacting with a GroEL homolog from the aphid's primary endosymbiotic bacterium (Buchnera sp.). Mutational analysis of GroEL from the primary endosymbiont of Myzus persicae (MpB GroEL) revealed that the amino acids mediating binding of Potato leafroll virus (PLRV; Luteoviridae) are located within residues 9 to 19 and 427 to 457 of the N-terminal and C-terminal regions, respectively, of the discontinuous equatorial domain. Virus overlay assays with a series of overlapping synthetic decameric peptides and their derivatives demonstrated that R13, K15, L17, and R18 of the N-terminal region and R441 and R445 of the C-terminal region of the equatorial domain of GroEL are critical for PLRV binding. Replacement of R441 and R445 by alanine in full-length MpB GroEL and in MpB GroEL deletion mutants reduced but did not abolish PLRV binding. Alanine substitution of either R13 or K15 eliminated the PLRV-binding capacity of the other and those of L17 and R18. In the predicted tertiary structure of GroEL, the determinants mediating virus binding are juxtaposed in the equatorial plain.  (+info)

Prephenate dehydratase from the aphid endosymbiont (Buchnera) displays changes in the regulatory domain that suggest its desensitization to inhibition by phenylalanine. (4/120)

Buchnera aphidicola, the prokaryotic endosymbiont of aphids, complements dietary deficiencies with the synthesis and provision of several essential amino acids. We have cloned and sequenced a region of the genome of B. aphidicola isolated from Acyrthosiphon pisum which includes the two-domain aroQ/pheA gene. This gene encodes the bifunctional chorismate mutase-prephenate dehydratase protein, which plays a central role in L-phenylalanine biosynthesis. Two changes involved in the overproduction of this amino acid have been detected. First, the absence of an attenuator region suggests a constitutive expression of this gene. Second, the regulatory domain of the Buchnera prephenate dehydratase shows changes in the ESRP sequence, which is involved in the allosteric binding of phenylalanine and is strongly conserved in prephenate dehydratase proteins from practically all known organisms. These changes suggest the desensitization of the enzyme to inhibition by phenylalanine and would permit the bacterial endosymbiont to overproduce phenylalanine.  (+info)

Decoupling of genome size and sequence divergence in a symbiotic bacterium. (5/120)

In contrast to genome size variation in most bacterial taxa, the small genome size of Buchnera sp. was shown to be highly conserved across genetically diverse isolates (630 to 643 kb). This exceptional size conservation may reflect the inability of this obligate mutualist to acquire foreign DNA and reduced selection for genetic novelty within a static intracellular environment.  (+info)

Polyamine composition and expression of genes related to polyamine biosynthesis in an aphid endosymbiont, Buchnera. (6/120)

Polyamine composition in an aphid endosymbiotic bacterium, Buchnera sp., was determined by high-performance liquid chromatographic analysis. We found that Buchnera contained virtually only a single polyamine, spermidine. The spermidine content of Buchnera was considerably higher in young aphids and tended to decrease with the age of the host. Expression of speD and speE, whose gene products are key enzymes in the synthesis of spermidine, was analyzed by real-time quantitative reverse transcription-PCR. It was shown that the levels of their mRNAs fluctuated in line with the spermidine content.  (+info)

Decay of mutualistic potential in aphid endosymbionts through silencing of biosynthetic loci: Buchnera of Diuraphis. (7/120)

Buchnera, the primary bacterial endosymbiont of aphids, is known to provision essential amino acids lacking in the hosts' diet of plant sap. The recent discovery of silenced copies of genes for tryptophan biosynthesis (trpEG) in certain Buchnera lineages suggests a decay in symbiotic functions in some aphid species. However, neither the distribution of pseudogenes among lineages nor the impact of this gene silencing on amino-acid availability in hosts has been assessed. In Buchnera of the aphid Diuraphis noxia, tandem repeats of these pseudogenes have persisted in diverse lineages, and thpEG pseudogenes have originated at least twice within this aphid genus. Measures of amino-acid concentrations in Diuraphis species have shown that the presence of the pseudogene is associated with a decreased availability of tryptophan, indicating that gene silencing decreases nutrient provisioning by symbionts. In Buchnera of Diuraphis, rates of nonsynonymous substitutions are elevated in functional trpE copies, supporting the hypothesis that pseudogene origin and persistence reflect a reduced selection for symbiont biosynthetic contributions. The parallel evolution of trpEG pseudogenes in Buchnera of Diuraphis and certain other aphid hosts suggests that either selection at the host level is not effective or that fitness in these aphids is not limited by tryptophan availability.  (+info)

Postsymbiotic plasmid acquisition and evolution of the repA1-replicon in Buchnera aphidicola. (8/120)

Buchnera aphidicola is an obligate, strictly vertically transmitted, bacterial symbiont of aphids. It supplies its host with essential amino acids, nutrients required by aphids but deficient in their diet of plant phloem sap. Several lineages of Buchnera show adaptation to their nutritional role in the form of plasmid-mediated amplification of key-genes involved in the biosynthesis of tryptophan (trpEG) and leucine (leuABCD). Phylogenetic analyses of these plasmid-encoded functions have thus far suggested the absence of horizontal plasmid exchange among lineages of Buchnera. Here, we describe three new Buchnera plasmids, obtained from species of the aphid host families Lachnidae and Pemphigidae. All three plasmids belong to the repA1 family of Buchnera plasmids, which is characterized by the presence of a repA1-replicon responsible for replication initiation. A comprehensive analysis of this family of plasmids unexpectedly revealed significantly incongruent phylogenies for different plasmid and chromosomally encoded loci. We infer from these incongruencies a case of horizontal plasmid transfer in Buchnera. This process may have been mediated by secondary endosymbionts, which occasionally undergo horizontal transmission in aphids.  (+info)

Buchnera is a genus of gram-negative, intracellular bacteria that are associated with sap-sucking insects, particularly aphids. These bacteria have a mutualistic relationship with their insect hosts, where the bacteria receive nutrients and protection from the host while providing essential amino acids and other compounds that the insect cannot synthesize on its own. The name Buchnera honors the German zoologist and entomologist, Paul Buchner, who made significant contributions to the study of insect symbiosis.

Aphids, also known as plant lice, are small sap-sucking insects that belong to the superfamily Aphidoidea in the order Hemiptera. They are soft-bodied and pear-shaped, with most species measuring less than 1/8 inch (3 millimeters) long.

Aphids feed on a wide variety of plants by inserting their needle-like mouthparts into the plant's vascular system to extract phloem sap. This feeding can cause stunted growth, yellowing, curling, or distortion of leaves and flowers, and may even lead to the death of the plant in severe infestations.

Aphids reproduce rapidly and can produce several generations per year. Many species give birth to live young (nymphs) rather than laying eggs, which allows them to increase their population numbers quickly. Aphids also have a complex life cycle that may involve sexual reproduction, parthenogenesis (reproduction without fertilization), and winged or wingless forms.

Aphids are an important pest in agriculture and horticulture, causing significant damage to crops and ornamental plants. They can also transmit plant viruses and produce honeydew, a sticky substance that attracts ants and supports the growth of sooty mold fungi.

Controlling aphids may involve cultural practices such as pruning, watering, and removing weeds; biological control using natural enemies such as lady beetles, lacewings, and parasitic wasps; or chemical control using insecticides.

In the context of medicine and biology, symbiosis is a type of close and long-term biological interaction between two different biological organisms. Generally, one organism, called the symbiont, lives inside or on another organism, called the host. This interaction can be mutually beneficial (mutualistic), harmful to the host organism (parasitic), or have no effect on either organism (commensal).

Examples of mutualistic symbiotic relationships in humans include the bacteria that live in our gut and help us digest food, as well as the algae that live inside corals and provide them with nutrients. Parasitic symbioses, on the other hand, involve organisms like viruses or parasitic worms that live inside a host and cause harm to it.

It's worth noting that while the term "symbiosis" is often used in popular culture to refer to any close relationship between two organisms, in scientific contexts it has a more specific meaning related to long-term biological interactions.

Anthranilate synthase is a key enzyme in the synthesis of aromatic amino acids, specifically tryptophan. It catalyzes the reaction of chorismate and glutamine to form anthranilate, which is the first committed step in the biosynthetic pathway leading to tryptophan. Anthranilate synthase is a heterotetrameric enzyme composed of two different subunits, ASα and ASβ, in eukaryotes and some bacteria. In other bacteria, anthranilate synthase is a single polypeptide chain with both active sites. The activity of anthranilate synthase is tightly regulated at the transcriptional and allosteric levels to control the flow of carbon into the tryptophan biosynthetic pathway.

A bacterial genome is the complete set of genetic material, including both DNA and RNA, found within a single bacterium. It contains all the hereditary information necessary for the bacterium to grow, reproduce, and survive in its environment. The bacterial genome typically includes circular chromosomes, as well as plasmids, which are smaller, circular DNA molecules that can carry additional genes. These genes encode various functional elements such as enzymes, structural proteins, and regulatory sequences that determine the bacterium's characteristics and behavior.

Bacterial genomes vary widely in size, ranging from around 130 kilobases (kb) in Mycoplasma genitalium to over 14 megabases (Mb) in Sorangium cellulosum. The complete sequencing and analysis of bacterial genomes have provided valuable insights into the biology, evolution, and pathogenicity of bacteria, enabling researchers to better understand their roles in various diseases and potential applications in biotechnology.

Luteovirus is a genus of viruses in the family Tombusviridae, order Picornavirales. They are small, isometric (icosahedral), single-stranded, positive-sense RNA viruses that primarily infect plants. Luteoviruses are transmitted by aphids in a persistent but non-propagative manner, meaning the virus does not replicate within the insect vector.

These viruses cause various diseases in important agricultural crops, such as barley yellow dwarf virus (BYDV) and beet western yellows virus (BWYV). Luteovirus infections can lead to symptoms like yellowing, stunting, and reduced yield, which significantly impact crop production and quality. Due to their economic importance, luteoviruses have been extensively studied to understand their transmission, epidemiology, and molecular biology for the development of effective control strategies.

"Serratia" is a genus of Gram-negative, facultatively anaerobic, motile bacilli that are commonly found in the environment, such as in water and soil. Some species, particularly "Serratia marcescens," can cause healthcare-associated infections, including pneumonia, urinary tract infections, wound infections, and bloodstream infections. These infections often occur in patients with compromised immune systems or who have been hospitalized for extended periods of time. Serratia species are resistant to multiple antibiotics, which can make treatment challenging.

Molecular evolution is the process of change in the DNA sequence or protein structure over time, driven by mechanisms such as mutation, genetic drift, gene flow, and natural selection. It refers to the evolutionary study of changes in DNA, RNA, and proteins, and how these changes accumulate and lead to new species and diversity of life. Molecular evolution can be used to understand the history and relationships among different organisms, as well as the functional consequences of genetic changes.

Gammaproteobacteria is a class of proteobacteria, a group of Gram-negative bacteria. This class includes several important pathogens that can cause various diseases in humans, animals, and plants. Some examples of Gammaproteobacteria include Escherichia coli (a common cause of food poisoning), Pseudomonas aeruginosa (a leading cause of hospital-acquired infections), Vibrio cholerae (the causative agent of cholera), and Yersinia pestis (the bacterium that causes plague).

Gammaproteobacteria are characterized by their single flagellum, which is used for motility, and their outer membrane, which contains lipopolysaccharides that can elicit an immune response in host organisms. They are found in a wide range of environments, including soil, water, and the guts of animals. Some species are capable of fixing nitrogen, making them important contributors to nutrient cycling in ecosystems.

It's worth noting that while Gammaproteobacteria includes many pathogenic species, the majority of proteobacteria are not harmful and play important roles in various ecological systems.

Essential amino acids are a group of 9 out of the 20 standard amino acids that cannot be synthesized by the human body and must be obtained through diet. They include: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. These amino acids are essential for various biological processes such as protein synthesis, growth, and repair of body tissues. A deficiency in any of these essential amino acids can lead to impaired physical development and compromised immune function. Foods that provide all nine essential amino acids are considered complete proteins and include animal-derived products like meat, poultry, fish, eggs, and dairy, as well as soy and quinoa.

Chaperonin 60, also known as CPN60 or HSP60 (heat shock protein 60), is a type of molecular chaperone found in the mitochondria of eukaryotic cells. Molecular chaperones are proteins that assist in the proper folding and assembly of other proteins. Chaperonin 60 is a member of the HSP (heat shock protein) family, which are proteins that are upregulated in response to stressful conditions such as heat shock or oxidative stress.

Chaperonin 60 forms a large complex with a barrel-shaped structure that provides a protected environment for unfolded or misfolded proteins to fold properly. The protein substrate is bound inside the central cavity of the chaperonin complex, and then undergoes a series of conformational changes that facilitate its folding. Chaperonin 60 has been shown to play important roles in mitochondrial protein import, folding, and assembly, as well as in the regulation of apoptosis (programmed cell death).

Defects in chaperonin 60 have been linked to a variety of human diseases, including neurodegenerative disorders, cardiovascular disease, and cancer.

Genome size refers to the total amount of genetic material, or DNA, contained within the cell of an organism. It is usually measured in terms of base pair (bp) length and can vary greatly between different species. The genome size includes all the genes, non-coding DNA, and repetitive elements present in the genome.

It's worth noting that genome size does not necessarily correlate with the complexity of an organism. For example, some plants have much larger genomes than humans, while some bacteria have smaller genomes. Additionally, genome size can also vary within a single species due to differences in the amount of repetitive DNA or other genetic elements.

... may refer to: Buchnera (bacterium), a genus of proteobacteria Buchnera (plant), a plant genus from the family ...
In Canada, Buchnera americana is only found in "a 10 km (6.2 mi) stretch of the shoreline of Lake Huron in South-western ... Buchnera americana is a perennial flowering plant with underground rhizomes and an above-ground stem. The stem of the plant is ... Buchnera americana has no known medicinal uses. In the garden, this plant is highly attractive to bees, butterflies, and birds ... Buchnera americana is mostly found along the edges of wet depressions, in limestone glades, prairies, moist sandy soils, and ...
... , the Florida bluehearts, is a species of flowering plant in the family Orobanchaceae. It is native to the ... "Buchnera floridana Gand". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 1 April 2023. Sorrie, Bruce A. (5 ... November 2020). "Buchnera floridana Gandoger Bull. Soc. Bot. France 66: 217. 1919". floranorthamerica.org. Flora of North ...
Buchnera granitica S.Moore Buchnera henriquesii Engl. Buchnera hispida Buch.-Ham. ex D.Don Buchnera hockii De Wild. Buchnera ... Buchnera angustissima Bonati Buchnera arenicola R.E.Fr. Buchnera asperata R.Br. Buchnera attenuata Skan Buchnera bampsiana ... Buchnera cambodiana Bonati Buchnera candida S.Moore Buchnera capitata Burm.f. Buchnera carajasensis Scatigna & N.Mota Buchnera ... Buchnera prorepens Engl. & Gilg Buchnera pulcherrima R.E.Fr. Buchnera pusilla Kunth Buchnera pusilliflora S.Moore Buchnera ...
... , a member of the Pseudomonadota and the only species in the genus Buchnera, is the primary endosymbiont of ... Buchnera Genome Projects (from Genomes OnLine Database) Comparative Analysis of Buchnera Genomes (at DOE's IMG system) ( ... A mature aphid may carry an estimated 5.6 × 106 Buchnera cells. Buchnera has lost regulatory factors, allowing continuous ... using Buchnera. The initial studies on Buchnera later led to studies on symbionts of many groups of insects, pursued by ...
"Buchnera linearis". Atlas of Living Australia. Retrieved 2023-06-07. Grazyna Paczkowska. "Buchnera linearis". FloraBase, Flora ... Buchnera linearis, the blackrod, is a species of flowering plant in the family Orobanchaceae. A short lived, semi-parasitic ... "Buchnera linearis". James Cook University Australia - Plants by Scientific Name. Retrieved 2023-06-07. v t e (Articles with ...
Buchnera pedunculata. Calycanthus glaucus, Bot. Reg. t. 404. - laevigatus, Bot. Reg. t. 481. Carex Fraseriana, Bot. Mag. t. ...
Buchnera bowalensis A.Chev. Buchnera capitata Benth. Buchnera hispida Buch.-Ham. ex D.Don Buchnera leptostachya Benth. ...
Buchnera asperata R.Br. Buchnera gracilis R.Br. Buchnera linearis R.Br. Buchnera ramosissima R.Br. Buchnera tenella R.Br. ... Buchnera tetragona R.Br. Buchnera urticifolia R.Br. Bulbine bulbosa (R.Br.) Haw. Bulbine semibarbata (R.Br.) Haw. Burchardia ...
In 2002, it was found that some species of the genus Buchnera have a reduced genome of only 450 kb in size. In 2021, the ... Examples of organisms which have experienced genome reduction include species of Buchnera, Chlamydia, Treponema, Mycoplasma, ... "Extreme genome reduction in Buchnera spp.: Toward the minimal genome needed for symbiotic life". Proceedings of the National ... "Extreme genome reduction in Buchnera spp.: Toward the minimal genome needed for symbiotic life". Proceedings of the National ...
"Reductive genome evolution in Buchnera aphidicola". Proceedings of the National Academy of Sciences. 100 (2): 581-6. Bibcode: ...
One can consider the variant Buchnera genomes as alleles for the larger hologenome. The association between Buchnera and aphids ... Gil R, Sabater-Muñoz B, Latorre A, Silva FJ, Moya A (April 2002). "Extreme genome reduction in Buchnera spp.: toward the ... They rely on their Buchnera endosymbiotic population for essential amino acids, supplying in exchange nutrients as well as a ... The pea aphid Acyrthosiphon pisum maintains an obligate symbiotic relationship with the bacterium Buchnera aphidicola, which is ...
2003). "Reductive genome evolution in Buchnera aphidicola". Proc. Natl. Acad. Sci. U.S.A. 100 (2): 581-6. Bibcode:2003PNAS..100 ... 2000). "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS". Nature. 407 (6800): 81-6. Bibcode: ...
Buchnera, synthesize the needed ones in an obligate relationship. The head louse (Pediculus humanus) has an obligate symbiotic ... Wernegreen, J. J.; Moran, N. A. (1999-01-01). "Evidence for genetic drift in endosymbionts (Buchnera): analyses of protein- ... Buchnera symbiotic system". Proceedings of the National Academy of Sciences. 115 (8): E1819-E1828. Bibcode:2018PNAS..115E1819S ...
One exception is the Buchnera, an obligate maternally transmitted symbiont of aphids. It retains 54 genes for biosynthesis of ... Other examples are Rickettsia, Buchnera aphidicola, and Borrelia burgdorferi. Small genome size in such species is associated ...
High-elevation herbs include bracken, Buchnera rungwensis, and Valeriana capensis. Two amphibians (Phrynobatrachus rungwensis ...
This hypothesis is confirmed by the analysis of the pseudogenes of Buchnera where the number of deletions was more than ten ... Thanks to the similarity among the gene content of Buchnera aphidicola and the enteric bacteria Escherichia coli, 89% identity ... Wernegreen, J. J.; Moran, N. A. (1999-01-01). "Evidence for genetic drift in endosymbionts (Buchnera): analyses of protein- ... Moran, Nancy A.; Mira, Alex (2001-11-14). "The process of genome shrinkage in the obligate symbiont Buchnera aphidicola". ...
Buchnera aphidicola gene transcription, although not well understood, is thought to be regulated by a small number of global ... ISBN 978-0-470-11517-6. Whitehead, L. F.; Douglas, A. E. (1993). "A metabolic study of Buchnera, the intracellular bacterial ... Aphids harbour a vertically transmitted (from parent to its offspring) obligate symbiosis with Buchnera aphidicola, the primary ... Buchnera) and a Recent Radiation of Aphids (Uroleucon) and Pitfalls of Testing for Phylogenetic Congruence". Evolution. 54 (2 ...
A replicon in a strain of Buchnera, which encodes some core genes, is only 7.8kb. While the presence of core genes may lead to ... "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS". Nature. 407 (6800): 81-86. Bibcode: ...
In some cases, the bacteria are transmitted in the egg, as in Buchnera; in others like Wigglesworthia, they are transmitted via ... For example, the putative primary role of Buchnera is to synthesize essential amino acids that the aphid cannot acquire from ... and its endosymbiont Buchnera sp. APS, the tsetse fly Glossina morsitans morsitans and its endosymbiont Wigglesworthia ... aphids and their symbiotic bacteria Buchnera". Annual Review of Entomology. 43: 17-37. doi:10.1146/annurev.ento.43.1.17. PMID ...
"Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS". Nature. 407 (6800): 81-6. Bibcode:2000Natur ...
Gammaproteobacteria: Escherichia, Shigella, Salmonella, Yersinia, Buchnera, Haemophilus, Vibrio, Pseudomonas, Pasteurella, etc ...
"Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS". Nature. 407 (6800): 81-86. Bibcode: ...
Buchnera randii S. Moore, Lopholoena randii S. Moore and Harveya randii Hiern. Retiring in 1935 he settled at Brightlingsea, ...
It is also dependent on the essential amino acids produced by Buchnera. It is autotrophic for eight out of the ten essential ... amino acids that Buchnera produces. Although dependent, the H. defensa genome preserves more genes and pathways for cell ...
Aphids and Their Symbiotic Bacteria Buchnera". Annual Review of Entomology. 43: 17-37. doi:10.1146/annurev.ento.43.1.17. PMID ...
In some cases, the bacteria and fungi are transmitted in the egg, as in Buchnera; in others, like Wigglesworthia, they are ... Douglas, A E (1998). "Nutritional interactions in insect-microbial symbioses: Aphids and their symbiotic bacteria Buchnera". ... Buchnera aphidicola. Bacteriocytes of aphids have a subpopulation of the bacteriocytes that is chosen prior to the maternal ... "Bacteriocyte cell death in the pea aphid/Buchnera symbiotic system". Proceedings of the National Academy of Sciences. 115 (8): ...
However, neither Buchnera aphidicola and Carsonella ruddii had elevated transcription error rates. Lynch, M. (2010). "Evolution ... In 2016, they measured transcriptional error rates in Escherichia coli as well as two endosymbiotic prokaryotes, Buchnera ...
Buchnera are housed in specialized, aphid-derived cells located in the hemocoel of the A. pisum body cavity. Each Buchnera cell ... Buchnera is related to Enterobacteriaceae including Escheriachia coli and it is likely that Buchnera evolved from a bacterium ... Phylogenetic analysis shows that Buchnera is a monophyletic group and that the phylogenies of Buchnera and A. pisum coincide. ... pisum and Buchnera receives necessary guanosine. The Buchnera genome has retained genes required for the biosynthesis of ...
... cedri has been shown to host three symbionts: Buchnera aphidicola, a secondary symbiont, and bacteria in the genus ... "Coexistence of Wolbachia with Buchnera aphidicola and a secondary symbiont in the aphid Cinara cedri". Journal of Bacteriology ...
Buchnera may refer to: Buchnera (bacterium), a genus of proteobacteria Buchnera (plant), a plant genus from the family ...
Pages that link to "Buchnera aphidicola". From MicrobeWiki, the student-edited microbiology resource ... Retrieved from "https://microbewiki.kenyon.edu/index.php/Special:WhatLinksHere/Buchnera_aphidicola" ...
Buchnera aphidicola str. Sg (Schizaphis graminum)). Find diseases associated with this biological target and compounds tested ...
The Buchnera asperata R.Br. is Permitted - s11 for the whole of state and is not assigned to any control category for a local ... Buchnera asperata R.Br.. Legal status:. Permitted - s11. Permitted organisms must satisfy any applicable import requirements ...
Bacteria Buchnera sp.. Reference. Rogozin IB, Makarova KS, Natale DA, Spiridonov AN, Tatusov RL, Wolf YI, Yin J, Koonin EV. ...
The effect of Buchnera genome evolution on gene expression levels has also been analysed in order to assess the constraints ... Our analysis showed that mRNA abundances, gene organization (operon) and gene essentiality are correlated in Buchnera (i.e., ... Finally, our results show the existence of spatial periodic transcriptional patterns in the genome of Buchnera. Despite an ... this work reveals a significant correlation between mRNA abundances and chromosomal organization of the aphid-symbiont Buchnera ...
Flora of Botswana: Buchnera. Flora of Caprivi: Buchnera. Flora of Mozambique: Buchnera. Flora of Zambia: Buchnera. Flora of ... Plants of the World Online: Buchnera. Tropicos: Buchnera. Wikipedia: Buchnera. Home. ,. List of families. ,. Orobanchaceae. ,. ... iNaturalist: Buchnera. IPNI (International Plant Names Index): Buchnera. JSTOR Plant Science: Buchnera. Mansfeld World Database ... Buchnera. 7622.000 Buchnera L.. Description of the genus. Annual or perennial herbs, often scabrid and turning black on drying ...
Buchnera americana Linnaeus. Prairie Bluehearts, American Bluehearts, Plains Bluehearts. Phen: Jun-Sep; Aug-Oct. Hab: Dry ( ... Buchnera americana L. - Fl7, K1, Mex, NcTx, WH3 ...
Buchnera gen. nov. and Buchnera aphidicola sp. nov., a taxon consisting of the mycetocyte-associated, primary endosymbionts of ... Taxon Abstract for the genus Buchnera Munson et al. 1991. NamesforLife, LLC. Retrieved August 18, 2022. . https://doi.org/ ...
Predicted regulatory interactions in Buchnera aphidicola str. Tuc7 (Acyrthosiphon pisum). Locus tag. Position. Score. Sequence ... Propagation of MetR regulog to Buchnera aphidicola str. Tuc7 (Acyrthosiphon pisum). Reference regulog properties. Source ...
Detection of Buchnera, the primary prokaryotic endosymbiont of aphids, using the polymerase chain reaction. ... Dive into the research topics of Detection of Buchnera, the primary prokaryotic endosymbiont of aphids, using the polymerase ...
Buchnera aphidicola str. Sg (Schizaphis graminum)). Find diseases associated with this biological target and compounds tested ...
2015). Additionally, recent work in which artificial mixed infections of Buchnera were created within aphids demonstrated a ... 2019) Trading amino acids at the aphid-Buchnera symbiotic interface. Proc Natl Acad Sci USA 116:16003-16011 ... Buchnera and aphids. Proc Natl Acad Sci USA 118:e2102467118 ...
Buchnéra dAmérique (Buchnera americana). Bluehearts. *. Carex des genévriers (Carex juniperorum). Sedge, Juniper ...
At the genus level the dominant communities were Buchnera, Acinetobacter, and Arsenophonus. The relative abundance of Buchnera ... Among them, Buchnera is crucial for the cotton-specialized aphid to get nutrients during the transfer of the host and has a ... Buchnera breaks the specialization of the cotton-specialized aphid (Aphis gossypii) by providing nutrition through zucchini. ... i,Buchnera,/i, breaks the specialization of the cotton-specialized aphid (,i,Aphis gossyp ...
Buchnera americana. AMERICAN BLUEHEARTS Buckleya distichophylla. PIRATEBUSH Bulbostylis warei. WARES HAIRSEDGE C. ...
ANIm values of the Buchnera clade (XLS 15 kb). Supplementary Table 14. Cluster assignments for the 3,496 genomes used in this ...
Buchnera urticifolia R.Br. Family: Orobanchaceae. Permitted - s11 *. Calamphoreus inflatus (C.A.Gardner) Chinnock Family: ...
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Gene size reduction in the bacterial aphid endosymbiont, Buchnera. H. Charles, Dominique Mouchiroud, J.R. Lobry, I. Gonçalves, ...
Palacios, C., & Wernegreen, J. J. (2002). "A strong effect of AT mutational bias on amino acid usage in Buchnera is mitigated ... Wernegreen, J. J., & Moran, N. A. (2001). "Vertical transmission of biosynthetic plasmids in aphid endosymbionts (Buchnera)." J ... Clark, M. A., Moran, N. A., Baumann, P., & Wernegreen, J. J. (2000). "Cospeciation between bacterial endosymbionts (Buchnera) ... Buchnera of Diuraphis." Proc Biol Sci, 267(1451), 1423-1431. doi:10.1098/rspb.2000.115. ...
Buchnera americana Present Native Not Introduced Native 18478 Details. Scientific Name: Bursera simaruba Occurrence: Present. ... Scientific Name: Buchnera americana Occurrence: Present. Native Status: Native. Introduced Status: Not Introduced. Invasive ...
Buchnera americana Ball-moss. Tillandsia recurvata Banded wild-pine, Twisted airplant. Tillandsia flexuosa ...
Buchnera americana (3). Buchnera pusilla (7). Buckiella undulata (7). Bucklandiella affinis (1). Buddleja colvilei (2). ...
Buchnera thrives in the pea aphid midgut and generates pantothenate, which can be absorbed and utilized by the host aphid. In ... This was first demonstrated in pea aphids (Acyrthosiphon pisum) that require Buchnera symbionts as a source of pantothenate [43 ... Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS. Nature 2000, 407, 81-86. [Google Scholar] [ ...
Buchnera pinnatifida L.f. Plexipus pinnatifidus (L.f.) R.R. Fern. Chascanum pinnatifidum (L.f.) E. Mey. ...
Buchnera comparative analysis. ...
Hairy Buchnera. Egyptian Woodrose. Wights Crossberry. Memnonia Snoutbean. Lacerated Liparis. Sky-Blue Rhynchostylis. ...
While 61.7% of individuals contained only Buchnera, three S-symbionts were found at different frequencies. Arsenophonus sp. ... In addition to the obligate endosymbiont Buchnera aphidicolaMunson, Baumann and Kinsey 1991 (Enterobacteriales: ...
  • Buchnera americana Linnaeus. (unc.edu)
  • Buchnera may refer to: Buchnera (bacterium), a genus of proteobacteria Buchnera (plant), a plant genus from the family Orobanchaceae This disambiguation page lists articles about distinct genera with the same name. (wikipedia.org)
  • Taxonomy of the genus Buchnera Munson et al. (namesforlife.com)
  • Taxon Abstract for the genus Buchnera Munson et al. (namesforlife.com)
  • At the genus level the dominant communities were Buchnera , Acinetobacter , and Arsenophonus. (bvsalud.org)
  • We have explored the possible conservation of relationships between mRNA abundances and chromosomal organization in the highly reduced genome of Buchnera aphidicola , the primary endosymbiont of the aphids, and a close relative to Escherichia coli . (biomedcentral.com)
  • The effect of Buchnera genome evolution on gene expression levels has also been analysed in order to assess the constraints imposed by the obligate symbiosis with aphids, underlining the importance of some gene sets for the survival of the two partners. (biomedcentral.com)
  • The relative abundance of Buchnera was significantly higher in aphids reared on zucchini than those on cotton, whereas the opposite was observed for Acinetobacter , as well as for some non-dominant communities ( Stenotrophomonas , Pseudomons, Flavobacterium , Novosphingobium). (bvsalud.org)
  • Some like Buchnera help aphids to create nutrients that they don't get from their food. (discovermagazine.com)
  • Aphids have been shown to rely on bacteria to provide essential amino acids the aphids cannot make themselves, and cannot readily obtain from their diet, while the bacteria - a group called Buchnera - get room and, in the form of sap-derived sugars, board. (berkeley.edu)
  • Researchers examining the genes of different species of aphids and of their individual gut bacteria found that the emergence of new species of aphids during evolution was mirrored by speciation events in the insects' Buchnera symbionts. (berkeley.edu)
  • Aphids and their endosymbiotic bacteria, Buchnera, rely on each other for survival. (plantpropagation.org)
  • The aphids provide Buchnera with shelter and nutrients, while Buchnera synthesizes essential amino acids that the aphids cannot obtain from their diet. (plantpropagation.org)
  • Nicotinate phosphoribosyltransferase (Buchnera aphidicola str. (nih.gov)
  • Propagation of MetR regulog to Buchnera aphidicola str. (lbl.gov)
  • Lipoprotein signal peptidase (Buchnera aphidicola str. (nih.gov)
  • Finally, our results show the existence of spatial periodic transcriptional patterns in the genome of Buchnera . (biomedcentral.com)
  • Despite an important reduction in its genome size and an apparent decay of its capacity for regulating transcription, this work reveals a significant correlation between mRNA abundances and chromosomal organization of the aphid-symbiont Buchnera . (biomedcentral.com)
  • Among them, Buchnera is crucial for the cotton-specialized aphid to get nutrients during the transfer of the host and has a favorable impact on the colonization of cotton-specialized aphid populations on zucchini hosts. (bvsalud.org)
  • Our analysis showed that mRNA abundances, gene organization (operon) and gene essentiality are correlated in Buchnera (i.e., the most expressed genes are essential genes organized in operons) whereas no link between mRNA abundances and gene strand bias was found. (biomedcentral.com)
  • Home » Organism Search » Buchnera asperata R.Br. (wa.gov.au)
  • Buchnera inhabits specialized host cells called bacteriocytes, provides nutrients to the aphid and has co-speciated with its aphid hosts for the past 150 million years. (biomedcentral.com)
  • We have used a single microarray to examine gene expression in the pea aphid, Acyrthosiphon pisum , and its resident Buchnera . (biomedcentral.com)
  • Our results from the Buchnera of A. pisum show responses for the same gene set as an earlier study of heat shock response in Buchnera for the host aphid Schizaphis graminum . (biomedcentral.com)
  • One model for heritable endosymbiosis is the association of aphids with their obligate bacterial symbiont, Buchnera We experimentally established heteroplasmic pea aphid matrilines containing pairs of closely related Buchnera haplotypes and used deep sequencing of diagnostic markers to measure haplotype frequencies in successive host generations . (bvsalud.org)
  • report the complete sequence of Buchnera, an obligate resident of aphid cells (Nature 2000, 407:81-86). (the-scientist.com)
  • The aphid cannot survive without Buchnera , as Buchnera synthesizes several essential amino acids. (the-scientist.com)
  • But with Buchnera relying on the aphid for a membrane bilayer and defense mechanisms, the bacterium is starting to look more like an organelle. (the-scientist.com)
  • Aphids have an obligate association with the primary symbiont Buchnera aphidicola and is known to affect aphid fitness. (entomoljournal.com)
  • The best studied insect-symbiont system is that of aphids and their primary bacterial endosymbiont Buchnera aphidicola . (biomedcentral.com)
  • Very little is known of gene expression in aphids, few studies have examined gene expression in Buchnera , and no study has examined simultaneously the expression profiles of a host and its symbiont. (biomedcentral.com)
  • Such associations are common in insects, in which the best studied symbiotic system is that of aphids (Insecta: Hemiptera: Aphididae) and their primary symbiont Buchnera aphidicola [ 2 ]. (biomedcentral.com)
  • 2019) Genome evolution of the obligate symbiont Buchnera aphidicola . (chonglab.org)
  • We chose to examine heat shock response because it has been well characterized both in Buchnera and in other insect species. (biomedcentral.com)
  • I thought Interproscan already has species-specific information, for example [this][1] page for Buchnera aphidicola. (biostars.org)
  • Buchnera may refer to: Buchnera (bacterium), a genus of proteobacteria Buchnera (plant), a plant genus from the family Orobanchaceae This disambiguation page lists articles about distinct genera with the same name. (wikipedia.org)
  • In contrast, several members of the Enterobacteriaceae, especially Enterobacter and Erwinia, and other potential plant or human pathogenic genera such as Acinetobacter and insect-associated Buchnera and Wolbachia spp. (uni-giessen.de)
  • Ingenieur agronome et biochimiste de formation, je suis un physiologiste de l'insecte (Thèse INA-PG/AgroParisTech en 1984) ayant travaillé à l'INSA de Lyon depuis cette date, avec quelques incursions ailleurs: INRA Guadeloupe en 1985-1986, U. Valencia en 2007. (hal.science)