• En las bacterias fototrópicas los cromatóforos se refieren a orgánulos membranosos (CROMATÓFOROS BACTERIANOS). (bvsalud.org)
  • In some forms of photosynthetic bacteria, a chromatophore is a pigmented(coloured), membrane-associated vesicle used to perform photosynthesis. (wikipedia.org)
  • In purple bacteria, such as Rhodospirillum rubrum, the light-harvesting proteins are intrinsic to the chromatophore membranes. (wikipedia.org)
  • In phototrophic bacteria chromatophores refer to membranous organelles (BACTERIAL CHROMATOPHORES). (bvsalud.org)
  • Most bacteria have not been characterised, and only about half of the bacterial phyla have species that can be grown in the laboratory. (alchetron.com)
  • They are of medical importance because some fimbriae mediate the attachment of bacteria to cells via adhesins (ADHESINS, BACTERIAL). (childrensmercy.org)
  • Gene transfers from diverse bacteria compensate for reductive genome evolution in the chromatophore of Paulinella chromatophora. (avcr.cz)
  • Bacterial tolerance to 6-methoxy-benzoxazolin-2-one (MBOA), the most abundant and selective antimicrobial metabolite in the maize rhizosphere, correlated significantly with the abundance of these bacteria on BX-exuding maize roots. (bvsalud.org)
  • A bacterial resting cell, -- formerly considered a spore, but now known to occur even in endosporous bacteria. (rhymingnames.com)
  • The cercozoan amoeba Paulinella chromatophora contains photosynthetic organelles-termed chromatophores-that evolved from a cyanobacterium ∼100 million years ago, independently from plastids in plants and algae. (frontiersin.org)
  • Paulinella chromatophora is a unicellular eukaryote that bears photosynthetic entities called chromatophores that are derived from cyanobacteria and has thus received much attention as a possible example of an organism in the early stages of organellogenesis. (biomedcentral.com)
  • Early ultrastructural observations [ 8 ] showed that the chromatophore of Paulinella shares a suite of characteristics with extant cyanobacteria, particularly members of the genus Synechococcus , including the presence of a thick peptidoglycan wall and a similar manner of binary fission. (biomedcentral.com)
  • (b) Light micrograph of a Paulinella cell bearing chromatophores. (biomedcentral.com)
  • 1. A comparison was made of two methods for estimating the membrane potential in chromatophores from Rhodopseudomonas sphaeroides Ga. Illuminated chromatophores generated a potential that is apparently much larger when estimated on the basis of the red-band shift of carotenoids rather than from the extent of uptake of the permeant SCN- ion. (nih.gov)
  • 2. In contrast, when the chromatophores were oxidizing NADH or succinate the uptake of SCN- indicated a larger membrane potential than was estimated from the carotenoid band shift. (nih.gov)
  • Here we show by mass spectrometric analyses of enriched insoluble protein fractions that, unexpectedly, nucleus-encoded transporters are not inserted into the chromatophore inner envelope membrane. (frontiersin.org)
  • sphaeroides, solar energy is converted via coupled electron and proton transfer reactions within the intracytoplasmic membranes (ICMs), infoldings of the cytoplasmic membrane that form spherical 'chromatophore' vesicles. (uea.ac.uk)
  • These bacterial 'organelles' are ideal model systems for studying how the organisation of the photosynthetic complexes therein shape membrane architecture. (uea.ac.uk)
  • Unlike cells of animals and other eukaryotes , bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles . (alchetron.com)
  • A membrane-bound organelle that is present in all plant and fungal cells and some protist, animal and bacterial cells. (hokudai.ac.jp)
  • They also noticed that although those genes sat inside the nuclei of the insect host cells, many of them had clearly not started out as mealybug genes because they coded for synthesizing peptidoglycans, the main components of bacterial cell walls. (quantamagazine.org)
  • Bacterial cells can be motile or non-motile. (excellup.com)
  • There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water . (alchetron.com)
  • There are approximately ten times as many bacterial cells in the human microbiota as there are human cells in the body, with their largest number being in the gut flora, and a large number on the skin . (alchetron.com)
  • Cytochrome c-556 was the only cytochrome species which co-fractionated with TMAO/DMSO reductase following gel filtration of a post-chromatophore supernatant produced after French presstreatment of intact cells. (uea.ac.uk)
  • Specialized cells called chromatophores are responsible for producing these pigmentations. (anglersadvantageguideservice.com)
  • Fish skin contains different types of pigment cells or chromatophores, which are under the control of the hormonal and nervous systems. (drjohnson.com)
  • The dermis is where the chromatophores (cells that carry skin color) are located, as well as where the hairs grow and the glands (sebaceous and sweat) are located. (lalilab.co)
  • It imports hundreds of nucleus-encoded proteins, and diverse metabolites are continuously exchanged across the two chromatophore envelope membranes. (frontiersin.org)
  • What makes this organism remarkable is the presence of one or two blue-green sausage-shaped chromatophores in its cytoplasm (Figure 1b ). (biomedcentral.com)
  • These findings imply that similar to the situation in mitochondria and plastids, also in P. chromatophora nuclear factors evolved that control metabolite exchange and gene expression in the chromatophore. (frontiersin.org)
  • But the two bacterial genomes were missing other genes as well, and although they complemented one another for amino acid synthesis, they seemed unable to make enzymes crucial to other metabolic pathways. (quantamagazine.org)
  • It is no longer debatable that viral, bacterial, and archaeal genomes have been forged by foreign genes for several billion years. (avcr.cz)
  • The question has long been: is the chromatophore just an endosymbiotic cyanobacterium or is it a photosynthetic organelle [ 9 ]? (biomedcentral.com)
  • Rhodobacter sphaeroides is a model organism in bacterial photosynthesis, and its light-harvesting-reaction center (LH1-RC) complex contains both dimeric and monomeric forms. (nature.com)
  • To the author's best knowledge, it is the first report describing the effect of bacterial pathogen on the scale of a fish species, C. punctata. (trjfas.org)
  • In different bacterial species, the photosynthetic core complex can take on very different organizations. (uiuc.edu)
  • This type of tumor is also known as the pigment cell tumor, and it is derived from the chromatophores that are found in the skin of the goldfish or other fish species, amphibians, and reptiles. (epetsquare.com)
  • 23 Note: It is easy to confuse the word chromatophore with the word chromophore. (forex-consultant.com)
  • In order to determine the adverse effects of P. aeruginosa DJ1990, fish were exposed to different doses of bacterial load and sacrificed at 12 h interval up to 72 h of post-infection period. (trjfas.org)
  • Systemic bacterial infection, which is usually accompanied by raised scales, protruding eyeballs and sometimes reddening / inflammation on the body. (drjohnson.net)
  • There are two causes for this, a form of vascular shock sometimes unexplained, sometimes caused by bacterial infection especially localizing in and spreading from the kidney can cause the fish to blanch in the middle. (drjohnson.com)
  • It mainly develops when the fish gills are damaged as a result of bacterial infection, parastials, physical injury, and toxins. (epetsquare.com)
  • Furthermore, chromatophore-localized biosynthetic pathways as well as multiprotein complexes include proteins of dual genetic origin, suggesting that mechanisms evolved that coordinate gene expression levels between chromatophore and nucleus. (frontiersin.org)
  • Instead we identified several expanded groups of short chromatophore-targeted orphan proteins. (frontiersin.org)
  • Furthermore, our mass spectrometric analysis revealed an expanded family of chromatophore-targeted helical repeat proteins. (frontiersin.org)
  • Apparently these chromatophore-targeted proteins evolved convergently to plastid-targeted expression regulators and are likely involved in gene expression control in the chromatophore. (frontiersin.org)
  • Complementary high-resolution atomic force microscopy (AFM) of intact, purified chromatophores verifies the close association of cytochrome bc1 complexes with RC-LH1-PufX dimers. (uea.ac.uk)
  • Figure 1 - Schematics of different organizations of the bacterial photosynthetic core complexes. (uiuc.edu)
  • In developed countries , antibiotics are used to treat bacterial infections and are also used in farming, making antibiotic resistance a growing problem. (alchetron.com)
  • Fimbriae, Bacterial" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (childrensmercy.org)
  • Cytochrome c-556 was identified in a bacterial periplasmic fraction as a redox component which couldbe oxidised by TMAO or DMSO. (uea.ac.uk)
  • The most common fatal bacterial diseases are respiratory infections, with tuberculosis alone killing about 2 million people per year, mostly in sub-Saharan Africa . (alchetron.com)
  • Sudden temperature drops, for example, adding cold water or heater malfunctions, can trigger various bacterial diseases and parasites in the aquarium. (fishparlor.com)
  • 2010. Potential of the melanophore pigment response for detection of bacterial toxicity. (oregonstate.edu)
  • Thus, the mechanism generating metabolic connectivity of the chromatophore fundamentally differs from the one for mitochondria and plastids, but likely rather resembles the poorly understood mechanism in various bacterial endosymbionts in plants and insects. (frontiersin.org)
  • We propose that bacterial tolerance to root-derived antimicrobial compounds is an underlying mechanism determining the structure of host-specific microbial communities. (bvsalud.org)
  • Tolerance against these selective antimicrobial compounds depended on bacterial cell wall structure. (bvsalud.org)
  • Bacterial fimbriae refer to common pili, to be distinguished from the preferred use of "pili", which is confined to sex pili (PILI, SEX). (childrensmercy.org)
  • Guanophores reflect the blue of incident light meaning that if the upper layer of chromatophores is yellow in color, the reflected light will be green. (snaketracks.com)
  • In the present study, it was observed that the advent of anomaly in scale structure (chromatophore dispersion, circuli damage, circuli disorganization, lepidontal breakage, lepidontal uprooting, lepidontal sockets exposing, lepidont displacement and scale loosing) was dependent on the pathogen loads and time of expose. (trjfas.org)
  • This domain is also present at the carboxyl terminus of the pan-bacterial protein RimM, which is involved in ribosomal maturation and processing of 16S rRNA. (rcsb.org)
  • One such Russian-doll merger occurred about 100 million years ago, when the small insect pests called mealybugs acquired a bacterial endosymbiont, Tremblaya . (quantamagazine.org)
  • Despite the more recent origin of the chromatophore, it shows tight integration into the host cell. (frontiersin.org)
  • Below are the most recent publications written about "Fimbriae, Bacterial" by people in Profiles. (childrensmercy.org)