Nutrient availability influences kairomone-induced defenses in Scenedesmus acutus (Chlorophyceae)
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چکیده
منابع مشابه
Plastocyanin microheterogeneity in Scenedesmus acutus MT8.
Two total plastocyanin (PC) fractions - loosely bound (lPC) and strongly bound (sPC) were extracted (84% and 16%, respectively) from the homogenate of Scenedesmus acutus MT8. Two-fold isolation-purification procedure including DE-52 chromatography separated IPC into a smaller oxidized [IPC (II)] and a larger reduced [IPC(I)] fractions, in contrast to sPC, where sPC(ll) greatly dominated over sP...
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H erbicidal chloroacetam ides cause a very sensitive inhibition of fatty acid incorporation into an insoluble cell wall fraction of Scenedesm us acutus. The m olecular basis was investi gated in m ore detail. A fter incubation of the algae with [14C]oleic acid and saponification, the rem aining pellet was solubilized and fractionated consecutively with chloroform /m ethanol, phosphate buffer, ...
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The green alga, Scenedesmus acutus, grows in culture in unicellular form, but it forms colonies (coenobia) when exposed for 48 h to a chemical released by the grazer Daphnia magna. The colony-forming response can be evoked only in growing cells. The Daphnia factor affects colony size but not algal growth rate. The minimum concentration of Daphnia factor that induces colony formation is equivale...
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Volatile anesthetics affect all cells and tissues tested, but their mechanisms and sites of action remain unknown. To gain insight into the cellular activities of anesthetics, we have isolated genes that, when overexpressed, render Saccharomyces cerevisiae resistant to the volatile anesthetic isoflurane. One of these genes, WAK3/TAT1, encodes a permease that transports amino acids including leu...
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ژورنال
عنوان ژورنال: Journal of Plankton Research
سال: 2012
ISSN: 1464-3774,0142-7873
DOI: 10.1093/plankt/fbs083