Pleomorphism in the Antarctic flagellate Pyramimonas gelidicola (Prasinophyceae, Chlorophyta)
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چکیده
منابع مشابه
Pseudomonas pelagia sp. nov., isolated from a culture of the Antarctic green alga Pyramimonas gelidicola.
Two Gram-negative, strictly aerobic bacterial strains, designated CL-AP6(T) and CL-AP22, were isolated from a culture of a green alga, Pyramimonas gelidicola, established from the Antarctic. Cells of the strains were straight rods and motile by means of a single polar flagellum. The strains grew with 0.5-8 % (w/v) NaCl (optimum, 1-2 %) and at 4-33 degrees C (optimum, 25 degrees C) and pH 6.5-9....
متن کاملAnalysis of expressed sequence tags from the antarctic psychrophilic green algae, Pyramimonas gelidicola.
Expressed sequence tags (ESTs) from the Antarctic green algae Pyramimonas gelidicola were analyzed to obtain molecular information on cold acclimation of psychrophilic microorganisms. A total of 2,112 EST clones were sequenced, generating 222 contigs and 219 singletons, and 200 contigs and 391 singletons from control (4 degrees C) and cold-shock conditions (-2 degrees C), respectively. The comp...
متن کاملDraft Genome Sequence of Pseudomonas pelagia CL-AP6, a Psychrotolerant Bacterium Isolated from Culture of Antarctic Green Alga Pyramimonas gelidicola
Pseudomonas pelagia CL-AP6, isolated from a culture of the Antarctic green alga Pyramimonas gelidicola, is a psychrotolerant bacterium. Here, we report the draft genome sequence of this strain, which may provide insights into the mutualistic interaction between microalgae and bacteria in sea ice, as well as the cold adaptation mechanisms of bacteria.
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During the BIOSOPE cruise in the South-East Pacific Ocean in 2004, several unidentified strains of prasinophytes were isolated into culture. Of these, nine strains composed a group for which the partial 18S rRNA gene sequence was related to Prasinoderma coloniale. The ultrastructure, morphology, division process, pigment composition, genome size and molecular genetic phylogeny of these nine str...
متن کاملThe Genus Pterosperma (prasinophyceae): Species with a Single Equatorial Ala
The life-history of the genus Pterosperma Pouchet is described. Development of the two phases, motile and non-motile, is detailed and a lunar periodicity in their change over indicated. Only the motile phase can persist independently, the cells reproducing asexually by fission. Sexuality has not been recorded for the genus. Criteria for valid generic and specific separation are discussed. Detai...
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ژورنال
عنوان ژورنال: Polar Research
سال: 2009
ISSN: 0800-0395,1751-8369
DOI: 10.3402/polar.v28i3.6144