Kingdoms Protozoa and Chromista and the eozoan root of the eukaryotic tree. (1/52)(+info)
High-level congruence of Myrionecta rubra prey and Dinophysis species plastid identities as revealed by genetic analyses of isolates from Japanese coastal waters. (2/52)(+info)
Diversity in a hidden world: potential and limitation of next-generation sequencing for surveys of molecular diversity of eukaryotic microorganisms. (3/52)(+info)
The Alveolate Perkinsus marinus: biological insights from EST gene discovery. (4/52)(+info)
Telomeres and telomerase activity in scleractinian corals and Symbiodinium spp. (5/52)Telomeres are the repetitive sequences of DNA and associated proteins that cap the ends of eukaryotic chromosomes and play an essential role in maintaining chromosome stability. Compromised telomeres can lead to cell cycle arrest, senescence, apoptosis, or genetic instability, whereas maintenance of telomeres can endow cells with the capacity for indefinite self-renewal. Telomere integrity is maintained in most cells by the activity of telomerase, a ribonucleoprotein that can catalyze the addition of repeat sequences onto chromosome ends. Using the telomeric repeat amplification protocol (TRAP) assay, we detected telomerase activity in host nuclear extracts prepared from two scleractinian corals, Madracis auretenra and Madracis decactis, and also in cultured Symbiodinium, the symbiotic algae that live within corals. Sequencing the TRAP reaction products indicated that the telomeric DNA repeat sequence was TTAGGG for coral and TTTAGGG for Symbiodinium. Using this sequence information, we estimated telomere lengths by terminal restriction fragment (TRF) analysis to be greater than 19 kb for several species of coral and their associated Symbiodinium. Maintenance of coral telomeres by telomerase activity may be a mechanism that confers continuous growth and reproductive plasticity to these long-lived organisms. (+info)
Parallel analyses of Alexandrium catenella cell concentrations and shellfish toxicity in the Puget Sound. (6/52)(+info)
Transcriptome analysis reveals nuclear-encoded proteins for the maintenance of temporary plastids in the dinoflagellate Dinophysis acuminata. (7/52)(+info)
Biogenesis of the inner membrane complex is dependent on vesicular transport by the alveolate specific GTPase Rab11B. (8/52)(+info)
Alveolata is a group of predominantly unicellular eukaryotes that includes dinoflagellates, apicomplexans (such as Plasmodium, the causative agent of malaria), and ciliates. This grouping is based on the presence of unique organelles called alveoli, which are membrane-bound sacs or vesicles located just beneath the cell membrane. These alveoli provide structural support and may also be involved in various cellular processes such as osmoregulation, nutrient uptake, and attachment to surfaces.
The medical significance of Alveolata lies primarily within the Apicomplexa, which contains many important parasites that infect humans and animals. These include Plasmodium spp., which cause malaria; Toxoplasma gondii, which causes toxoplasmosis; and Cryptosporidium parvum, which is responsible for cryptosporidiosis. Understanding the biology and behavior of these parasites at the cellular level can provide valuable insights into their pathogenesis, transmission, and potential treatment strategies.
Dinoflagellida is a large group of mostly marine planktonic protists, many of which are bioluminescent. Some dinoflagellates are responsible for harmful algal blooms (HABs), also known as "red tides," which can produce toxins that affect marine life and human health.
Dinoflagellates are characterized by two flagella, or whip-like structures, that they use for movement. They have complex cell structures, including a unique structure called the nucleomorph, which is the remnant of a former endosymbiotic event where another eukaryotic cell was engulfed and became part of the dinoflagellate's cell.
Dinoflagellates are important contributors to the marine food chain, serving as both primary producers and consumers. Some species form symbiotic relationships with other marine organisms, such as corals, providing them with nutrients in exchange for protection and other benefits.
Eukaryota is a domain that consists of organisms whose cells have a true nucleus and complex organelles. This domain includes animals, plants, fungi, and protists. The term "eukaryote" comes from the Greek words "eu," meaning true or good, and "karyon," meaning nut or kernel. In eukaryotic cells, the genetic material is housed within a membrane-bound nucleus, and the DNA is organized into chromosomes. This is in contrast to prokaryotic cells, which do not have a true nucleus and have their genetic material dispersed throughout the cytoplasm.
Eukaryotic cells are generally larger and more complex than prokaryotic cells. They have many different organelles, including mitochondria, chloroplasts, endoplasmic reticulum, and Golgi apparatus, that perform specific functions to support the cell's metabolism and survival. Eukaryotic cells also have a cytoskeleton made up of microtubules, actin filaments, and intermediate filaments, which provide structure and shape to the cell and allow for movement of organelles and other cellular components.
Eukaryotes are diverse and can be found in many different environments, ranging from single-celled organisms that live in water or soil to multicellular organisms that live on land or in aquatic habitats. Some eukaryotes are unicellular, meaning they consist of a single cell, while others are multicellular, meaning they consist of many cells that work together to form tissues and organs.
In summary, Eukaryota is a domain of organisms whose cells have a true nucleus and complex organelles. This domain includes animals, plants, fungi, and protists, and the eukaryotic cells are generally larger and more complex than prokaryotic cells.
Phylogeny is the evolutionary history and relationship among biological entities, such as species or genes, based on their shared characteristics. In other words, it refers to the branching pattern of evolution that shows how various organisms have descended from a common ancestor over time. Phylogenetic analysis involves constructing a tree-like diagram called a phylogenetic tree, which depicts the inferred evolutionary relationships among organisms or genes based on molecular sequence data or other types of characters. This information is crucial for understanding the diversity and distribution of life on Earth, as well as for studying the emergence and spread of diseases.
List of fungi of South Africa - C
List of fungi of South Africa - A
Kermia alveolata - Wikipedia
Sabellaria alveolata reefs on sand-abraded eulittoral rock - MarLIN - The Marine Life Information Network
COPEPEDIA summary for Sabellaria alveolata : T4014727 : Species
Freshwater and other micro-organisms from Germany: Stentor roeseli, Heterotrichida, Ciliophora, Alveolata ( Ciliata)
Widespread occurrence and genetic diversity of marine parasitoids belonging to |i|Syndiniales|/i| (|i|Alveolata|/i|) |...
Hematodinium sp. (Alveolata, Syndinea) detected in marine decapod crustaceans from waters of Denmark and Greenland | AQUASYMBIO
Prevalence and seasonality of Hematodinium (Alveolata: Syndinea) in a Scottish crustacean community - Fingerprint -...
Results for 'Windows worm' - data.gov.uk
Heterotrichida - Wikispecies
Epalxella - Wikispecies
Category:Protista - Simple English Wikipedia, the free encyclopedia
MarBEF Data System - ERMS - Myzozoa
WoRMS - World Register of Marine Species - Protoperidinium nudum (Meunier, 1919) Balech, 1974
Arachnida: Collection Types Catalogue | Senckenberg Society for Nature Research
Profile | Biosciences | University of Exeter
WO2022175548A1 - Improved electrochemical ammonia synthesis - Google Patents
Frontiers | Ecological Interactions of Cyanobacteria and Heterotrophs Enhances the Robustness of Cyanobacterial Consortium for...
Names from Index Nominum Algarum
PBANKA 082720 monocarboxylase transporter, putative [Plasmodium berghei ANKA] - Gene - NCBI
Branchiostoma lanceolatum in circalittoral coarse sand with shell gravel - MarLIN - The Marine Life Information Network
Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock - MarLIN - The Marine Life Information...
Remote Sensing | Special Issue : Remote Sensing in Coastal Zone Monitoring and Management-How Can Remote Sensing Challenge the...
Skeptic Wonder: 02.2011
Small Things Considered: In the Company of Bacteria: Amoebae
COPEPEDIA summary for Dinophysis fortii : T2000917 : Species
Dr Andy Foggo - University of Plymouth
- Sabellaria alveolata growing on sand abraded eulittoral rocks. (marlin.ac.uk)
- Small hummock of Sabellaria alveolata at Dunraven, Southerndown, south Wales. (marlin.ac.uk)
- Many wave-exposed boulder scar grounds in the eastern basin of the Irish Sea (and as far south as Cornwall), are characterized by reefs of Sabellaria alveolata which build tubes from the mobile sand surrounding the boulders and cobbles. (marlin.ac.uk)
- The tubes formed by Sabellaria alveolata form large reef-like hummocks, which serve to further stabilize the boulders. (marlin.ac.uk)
- Sabellaria alveolata can perform important stabilization of habitat, particularly when forming raised structures and reefs (see Ecology). (marlin.ac.uk)
- Collins (2001) found 59 faunal taxa and 18 floral taxa associated with Sabellaria alveolata reefs at Criccieth in North Wales, dominated by annelids, molluscs, nematodes and hexapods. (marlin.ac.uk)
- Dias & Paula (2001) recorded a total of 137 taxa in Sabellaria alveolata colonies on two shores on the central coast of Portugal. (marlin.ac.uk)
- 1998) often attributed to the presence of extensive Sabellaria alveolata sheets. (marlin.ac.uk)
- Conservation Assessment of Honeycomb Worm Sabellaria alveolata Reefs This is a collation of surveys to gather data and evidence from a variety of. (data.gov.uk)
- Coastwatch Team member Mick Berry gives a brief overview of Honeycomb Reef, the Sabellaria alveolata, and our effect on their natural environment. (coastwatch.org)
- godini, sam Cavalier-Smith izrazio je želju da se u Chromista premjeste Alveolata , Rhizaria i Heliozoa . (wikipedia.org)
-  A secondary endosymbiosis event involving an ancestral red alga and a heterotrophic eukaryote resulted in the evolution and diversification of several other photosynthetic lineages such as Cryptophyta , Haptophyta , Stramenopiles (or Heterokontophyta) , and Alveolata . (wikipedia.org)
- The transcriptome of the novel dinoflagellate Oxyrrhis marina (Alveolata: Dinophyceae): response to salinity examined by 454 sequencing. (exeter.ac.uk)
- A continuación describiremos un árbol filogenético con varias especies Organismos celulares Eukaryota Alveolata Viridiplantae Lophotrochozoa Ecdysozoa Opisthokonta Chordata Millerieae Chondrichthyes Liliopsida Teleostomi Bacteria (Outgroup) Eso es todo por hoy! (powtoon.com)
- Kermia alveolata is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae. (wikipedia.org)
- In the Bay of Mont-Saint-Michel, France, S. alveolata reefs are considered the largest reef formations in Europe and are increasingly endangered by anthropogenic pressure. (int-res.com)
- In order to understand the role of larval transport on the resilience capacity of these biogenic reefs, multiple complementary approaches were carried out within the bay in 2002 to study horizontal and vertical distribution of S. alveolata larvae and assess larval dispersal processes. (int-res.com)
- En av disse gruppene er sporedyrene (Apicomplexa), som blant annet inkluderer malariaparasitten. (artsdatabanken.no)
- One of the objectives of the REEHAB project ( http://www.honeycombworms.org ) was to combine historical records with contemporary data to document changes in the distribution and abundance of S. alveolata . (seanoe.org)