euglena वाक्य
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- He developed a nutritional assay method for vitamin B12 using Euglena that was used for many years in hospitals to test for B12 levels in blood, eventually being replaced by other methods
- Since " Euglena " have features of both animals and plants, early taxonomists, working within the Linnaean three-kingdom system of biological classification, found them difficult to classify.
- In " Euglena ", one flagellum is very short, and does not protrude from the cell, while the other is relatively long, and often easily visible with light microscopy.
- Among the green euglenoids themselves, Pringsheim recognized the close kinship of some species of " Phacus " and " Lepocinclis " with some species of " Euglena ".
- In 2015, Dr Ellis O'Neill and Professor Rob Field have sequenced the transcriptome of " Euglena gracilis ", which provides information about all of the genes that the organism is actively using.
- Montandon, P . and Stutz, E . ( 1984 ) and Hallick, R . B . et al . ( 1988 and 1989 ) reported examples of a novel type of introns in Euglena chloroplast.
- As the cell rotates with respect to the light source, the eyespot partially blocks the source, permitting the " Euglena " to find the light and move toward it ( a process known as phototaxis ).
- In 1997, a morphological and molecular study of the Euglenozoa put " Euglena gracilis " in close kinship with the species " Khawkinea quartana ", with " Peranema trichophorum " basal to both.
- Two years later, a molecular analysis showed that " E . gracilis " was, in fact, more closely related to " Astasia longa " than to certain other species recognized as " Euglena ".
- :: : Are you thinking of a Euglena ? if so, it's worth noting that they're not single celled plants, in so much as they're protists-- "'VectorPotential "'
- ""'Euglena gracilis " "'is a species of " euglenoid " movement across surfaces . " Euglena gracilis " has been used extensively in the laboratory as a model organism, particularly for studying cell biology and biochemistry.
- ""'Euglena gracilis " "'is a species of " euglenoid " movement across surfaces . " Euglena gracilis " has been used extensively in the laboratory as a model organism, particularly for studying cell biology and biochemistry.
- For nearly 30 years Ehrenberg examined samples of water, soil, sediment, blowing dust and rock and described thousands of new species, among them well-known flagellates such as Euglena, ciliates such as " Paramecium aurelia " and " Paramecium caudatum ", and many fossils, in nearly 400 scientific publications.
- In 1674, in a letter to the Royal Society, the Dutch pioneer of microscopy Antoni van Leeuwenhoek wrote that he had collected water samples from an inland lake, in which he found " animalcules " that were " green in the middle, and before and behind white . " Clifford Dobell regards it as " almost certain " that these were " Euglena viridis ", whose " peculiar arrangement of chromatophores . . . gives the flagellate this appearance at low magnification ."
- For example, the algae " Euglena " and " Dinobryon " have chloroplasts for photosynthesis, but can also feed on organic matter and are John Hogg argued against the use of " protozoa ", on the grounds that " naturalists are divided in opinion and probably some will ever continue so whether many of these organisms, or living beings, are animals or plants . " As an alternative, he proposed a new kingdom called Primigenum, consisting of both the protozoa and unicellular algae ( protophyta ), which he combined together under the name " Protoctista ".
- Euglenid, with plastids, rigid, flattened cells, most species very flat and leaf-shaped, often with ridges, folds or grooves running helically or longitudinally, giving an irregular or triradiate cross-section; many species with a long posterior spine, many twisted, flagella, eyespot and flagellar swelling as in Euglena; chloroplasts usually small, discoid, numerous, without pyrenoids; a few species ( e . g . " P . splendens " ) have large flat chloroplasts with pyrenoids; paramylon is typically deposited as a few large granules ( often rings ) together with many small ones; canal opening subapical; no cysts palmelloid stages rare; speciose, contemporary studies indicate that the genus is not monophyletic or holophyletic; type species : " P . longicauda " ( Ehrenberg, 1833 ) Dujardin, 1841 ..
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