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Ellobiopsis
''Ellobiopsis'' is a genus of unicellular, ectoparasitic eukaryotes causing disease in crustaceans. This genus is widespread and has been found infecting copepods from both marine and freshwater ecosystems. parasitism has been seen to interfere with fertility in both sexes of copepods. Taxonomy and History The ''Ellobiopsis'' type species, ''Ellobiopsis chattoni,'' was first described in 1910 by Caullery after being isolated from an infected copepod found in the Mediterranean Sea. ''Ellobiopsis'' was first classified as a dinoflagellate, but observation of a spore forming organelle concluded that the ''Ellobiopsis'' was not a part of this group. Phylogeny based on small subunit (SSU) ribosomal DNA places ''Ellobiopsis'' in the Alveolata. In the family Ellobiopsidae, the most closely related genus is ''Thalassomyces''. Three species have been defined in this genus: ''Ellobiopsis chattoni'' Caullery (1910), ''Ellobiopsis elongata'' Steuer (1932) ''and Ellobiopsis fagei'' Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobiopsis Chattonii
''Ellobiopsis'' is a genus of unicellular, ectoparasitic eukaryotes causing disease in crustaceans. This genus is widespread and has been found infecting copepods from both marine and freshwater ecosystems. parasitism has been seen to interfere with fertility in both sexes of copepods. Taxonomy and History The ''Ellobiopsis'' type species, ''Ellobiopsis chattoni,'' was first described in 1910 by Caullery after being isolated from an infected copepod found in the Mediterranean Sea. ''Ellobiopsis'' was first classified as a dinoflagellate, but observation of a spore forming organelle concluded that the ''Ellobiopsis'' was not a part of this group. Phylogeny based on small subunit (SSU) ribosomal DNA places ''Ellobiopsis'' in the Alveolata. In the family Ellobiopsidae, the most closely related genus is ''Thalassomyces''. Three species have been defined in this genus: ''Ellobiopsis chattoni'' Caullery (1910), ''Ellobiopsis elongata'' Steuer (1932) ''and Ellobiopsis fagei'' Hovasse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobiopsis Elongata
''Ellobiopsis'' is a genus of unicellular, ectoparasitic eukaryotes causing disease in crustaceans. This genus is widespread and has been found infecting copepods from both marine and freshwater ecosystems. parasitism has been seen to interfere with fertility in both sexes of copepods. Taxonomy and History The ''Ellobiopsis'' type species, ''Ellobiopsis chattoni,'' was first described in 1910 by Caullery after being isolated from an infected copepod found in the Mediterranean Sea. ''Ellobiopsis'' was first classified as a dinoflagellate, but observation of a spore forming organelle concluded that the ''Ellobiopsis'' was not a part of this group. Phylogeny based on small subunit (SSU) ribosomal DNA places ''Ellobiopsis'' in the Alveolata. In the family Ellobiopsidae, the most closely related genus is ''Thalassomyces''. Three species have been defined in this genus: ''Ellobiopsis chattoni'' Caullery (1910), ''Ellobiopsis elongata'' Steuer (1932) ''and Ellobiopsis fagei'' Hovasse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobiopsis Racemosus
''Ellobiopsis'' is a genus of unicellular, ectoparasitic eukaryotes causing disease in crustaceans. This genus is widespread and has been found infecting copepods from both marine and freshwater ecosystems. parasitism has been seen to interfere with fertility in both sexes of copepods. Taxonomy and History The ''Ellobiopsis'' type species, ''Ellobiopsis chattoni,'' was first described in 1910 by Caullery after being isolated from an infected copepod found in the Mediterranean Sea. ''Ellobiopsis'' was first classified as a dinoflagellate, but observation of a spore forming organelle concluded that the ''Ellobiopsis'' was not a part of this group. Phylogeny based on small subunit (SSU) ribosomal DNA places ''Ellobiopsis'' in the Alveolata. In the family Ellobiopsidae, the most closely related genus is ''Thalassomyces''. Three species have been defined in this genus: ''Ellobiopsis chattoni'' Caullery (1910), ''Ellobiopsis elongata'' Steuer (1932) ''and Ellobiopsis fagei'' Hovasse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobiopsis Fagei
''Ellobiopsis'' is a genus of unicellular, ectoparasitic eukaryotes causing disease in crustaceans. This genus is widespread and has been found infecting copepods from both marine and freshwater ecosystems. parasitism has been seen to interfere with fertility in both sexes of copepods. Taxonomy and History The ''Ellobiopsis'' type species, ''Ellobiopsis chattoni,'' was first described in 1910 by Caullery after being isolated from an infected copepod found in the Mediterranean Sea. ''Ellobiopsis'' was first classified as a dinoflagellate, but observation of a spore forming organelle concluded that the ''Ellobiopsis'' was not a part of this group. Phylogeny based on small subunit (SSU) ribosomal DNA places ''Ellobiopsis'' in the Alveolata. In the family Ellobiopsidae, the most closely related genus is ''Thalassomyces''. Three species have been defined in this genus: ''Ellobiopsis chattoni'' Caullery (1910), ''Ellobiopsis elongata'' Steuer (1932) ''and Ellobiopsis fagei'' Hovasse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobiopsis Eupraxiae
''Ellobiopsis'' is a genus of unicellular, ectoparasitic eukaryotes causing disease in crustaceans. This genus is widespread and has been found infecting copepods from both marine and freshwater ecosystems. parasitism has been seen to interfere with fertility in both sexes of copepods. Taxonomy and History The ''Ellobiopsis'' type species, ''Ellobiopsis chattoni,'' was first described in 1910 by Caullery after being isolated from an infected copepod found in the Mediterranean Sea. ''Ellobiopsis'' was first classified as a dinoflagellate, but observation of a spore forming organelle concluded that the ''Ellobiopsis'' was not a part of this group. Phylogeny based on small subunit (SSU) ribosomal DNA places ''Ellobiopsis'' in the Alveolata. In the family Ellobiopsidae, the most closely related genus is ''Thalassomyces''. Three species have been defined in this genus: ''Ellobiopsis chattoni'' Caullery (1910), ''Ellobiopsis elongata'' Steuer (1932) ''and Ellobiopsis fagei'' Hovasse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellobiopsis Caridarum
''Ellobiopsis'' is a genus of unicellular, ectoparasitic eukaryotes causing disease in crustaceans. This genus is widespread and has been found infecting copepods from both marine and freshwater ecosystems. parasitism has been seen to interfere with fertility in both sexes of copepods. Taxonomy and History The ''Ellobiopsis'' type species, ''Ellobiopsis chattoni,'' was first described in 1910 by Caullery after being isolated from an infected copepod found in the Mediterranean Sea. ''Ellobiopsis'' was first classified as a dinoflagellate, but observation of a spore forming organelle concluded that the ''Ellobiopsis'' was not a part of this group. Phylogeny based on small subunit (SSU) ribosomal DNA places ''Ellobiopsis'' in the Alveolata. In the family Ellobiopsidae, the most closely related genus is ''Thalassomyces''. Three species have been defined in this genus: ''Ellobiopsis chattoni'' Caullery (1910), ''Ellobiopsis elongata'' Steuer (1932) ''and Ellobiopsis fagei'' Hovasse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spore
In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa. Bacterial spores are not part of a sexual cycle, but are resistant structures used for survival under unfavourable conditions. Myxozoan spores release amoeboid infectious germs ("amoebulae") into their hosts for parasitic infection, but also reproduce within the hosts through the pairing of two nuclei within the plasmodium, which develops from the amoebula. In plants, spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Under favourable conditions the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes. Two gametes fuse to form a zygote which develops into a new s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organelle
In cell biology, an organelle is a specialized subunit, usually within a cell, that has a specific function. The name ''organelle'' comes from the idea that these structures are parts of cells, as organs are to the body, hence ''organelle,'' the suffix ''-elle'' being a diminutive. Organelles are either separately enclosed within their own lipid bilayers (also called membrane-bound organelles) or are spatially distinct functional units without a surrounding lipid bilayer (non-membrane bound organelles). Although most organelles are functional units within cells, some function units that extend outside of cells are often termed organelles, such as cilia, the flagellum and archaellum, and the trichocyst. Organelles are identified by microscopy, and can also be purified by cell fractionation. There are many types of organelles, particularly in eukaryotic cells. They include structures that make up the endomembrane system (such as the nuclear envelope, endoplasmic reticulum, and G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetic Tree
A phylogenetic tree (also phylogeny or evolutionary tree Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA.) is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics. All life on Earth is part of a single phylogenetic tree, indicating common ancestry. In a ''rooted'' phylogenetic tree, each node with descendants represents the inferred most recent common ancestor of those descendants, and the edge lengths in some trees may be interpreted as time estimates. Each node is called a taxonomic unit. Internal nodes are generally called hypothetical taxonomic units, as they cannot be directly observed. Trees are useful in fields of biology such as bioinformatics, systematics, and phylogenetics. ''Unrooted'' trees illustrate only the relatedness of the leaf nodes and do not require the ancestral root to b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eukaryota
Eukaryotes () are organisms whose Cell (biology), cells have a cell nucleus, nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the Three-domain system, three domains of life. Bacteria and Archaea (both prokaryotes) make up the other two domains. The eukaryotes are usually now regarded as having emerged in the Archaea or as a sister of the Asgard (archaea), Asgard archaea. This implies that there are only Two-domain system, two domains of life, Bacteria and Archaea, with eukaryotes incorporated among archaea. Eukaryotes represent a small minority of the number of organisms, but, due to their generally much larger size, their collective global biomass (ecology), biomass is estimated to be about equal to that of prokaryotes. Eukaryotes emerged approximately 2.3–1.8 billion years ago, during the Proterozoic eon, likely as Flagellated cell, flagellated phagotrophs. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The Sea has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. The Mediterranean Sea e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ribosomal RNA
Ribosomal ribonucleic acid (rRNA) is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes. Ribosomal RNA is transcribed from ribosomal DNA (rDNA) and then bound to ribosomal proteins to form SSU rRNA, small and LSU rRNA, large ribosome subunits. rRNA is the physical and mechanical factor of the ribosome that forces transfer RNA (tRNA) and messenger RNA (mRNA) to process and Translation (biology), translate the latter into proteins. Ribosomal RNA is the predominant form of RNA found in most cells; it makes up about 80% of cellular RNA despite never being translated into proteins itself. Ribosomes are composed of approximately 60% rRNA and 40% ribosomal proteins by mass. Structure Although the primary structure of rRNA sequences can vary across organisms, Base pair, base-pairing within these sequences commonly forms stem-loop configurations. The length and position of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
