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Andalucina
Andalucina is a suborder of unicellular organisms in the order of Jakobida. Many species in Andalucina inhabit anaerobic environments. References Jakobids Taxa described in 2013 {{Excavata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stygiellidae
Stygiellidae is a family of free-living marine flagellates belonging to the order Jakobida, a deep-branching lineage within the eukaryotic supergroup Discoba. They are unicellular organisms that commonly inhabit anoxic, sulfide-rich and ammonium-rich marine habitats worldwide. Cell morphology and behavior Members of Stygiellidae are genetically diverse but morphologically similar anaerobic jakobids. The unifying aspect of their appearance is their cristae-lacking mitochondria due to the secondary loss of aerobic metabolism. They resemble jakobid cells, and form two morphotypes: grooved cells, attached to the substrate, with a conspicuous groove; and swimming cells, with a less distinct, narrower groove. Both morphotypes move in a spiral motion, although the swimming cells are faster. It is difficult to distinguish morphological aspects between species due to the variability among cells within the same strain and the similarity between grooved and swimming cells. Ecology and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jakobids
Jakobida is an order (biology), order (sole order in the Class (biology), class Jakobea) of free-living, Heterotroph, heterotrophic, Flagellate, flagellar eukaryotes in the clade Excavata#Discoba or JEH clade, Discoba. They are small (less than 15 μm), and can be found in aerobic and anaerobic environments. The order Jakobida, believed to be monophyletic, consists of only twenty species at present, and was classified as a group in 1993. There is ongoing research into the Mitochondrial DNA, mitochondrial genomes of jakobids, which are unusually large and bacteria-like, evidence that jakobids may be important to the evolutionary history of eukaryotes. Molecular phylogenetic evidence suggests strongly that jakobids are most closely related to Heterolobosea and Euglenozoa. Description Jakobids have two flagella, inserted in the anterior end of the cell, and, like other members of order Excavata, have a ventral feeding groove and associated cytoskeleton support. The posterior flag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
