Cell-based measurements to assess physiological status of Pseudo-nitzschia multiseries, a toxic diatom
نویسندگان
چکیده
منابع مشابه
Cell-based measurements to assess physiological status of Pseudo-nitzschia multiseries, a toxic diatom.
Diatoms of the genus Pseudo-nitzschia are potentially toxic microalgae, whose blooms can trigger amnesic shellfish poisoning. The purpose of this study was to test and adapt different probes and procedures in order to assess the physiological status of Pseudo-nitzschia multiseries at the cell level using flow cytometry. To perform these analyses, probes and procedures were first optimized for c...
متن کاملLink between Domoic Acid Production and Cell Physiology after Exchange of Bacterial Communities between Toxic Pseudo-nitzschia multiseries and Non-Toxic Pseudo-nitzschia delicatissima
Bacteria are known to influence domoic acid (DA) production by Pseudo-nitzschia spp., but the link between DA production and physiology of diatoms requires more investigation. We compared a toxic P. multiseries to a non-toxic P. delicatissima, investigating links between DA production, physiological parameters, and co-occurring bacteria. Bacterial communities in cultures of both species were re...
متن کاملGluconic acid/gluconolactone: physiological influences on domoic acid production by bacteria associated with Pseudo-nitzschia multiseries
A single strain of Pseudo-nitzschia multiseries was grown axenically and in parallel cultures to which selected bacterial species isolated previously from P. multiseries cultures were added (non-axenic culture), an Alteromonas sp. (a producer of gluconic acid/gluconolactone when grown with glucose) and a Moraxella sp. (a non-producer of gluconic acid/gluconolactone). When gluconic acid/gluconol...
متن کاملInduction of domoic acid production in the toxic diatom Pseudo-nitzschia seriata by calanoid copepods.
The toxic diatom Pseudo-nitzschia seriata was exposed directly and indirectly (separated by a membrane) to copepods, Calanus hyperboreus and C. finmarchicus, to evaluate the effects of the copepods on domoic acid production and chain formation in P. seriata. The toxicity of P. seriata increased in the presence of the copepods. This response was chemically mediated without physical contact betwe...
متن کاملInterspecific plastidial recombination in the diatom genus Pseudo-nitzschia.
Plastids are usually uni-parentally inherited and genetic recombination between these organelles is seldom observed. The genus Pseudo-nitzschia, a globally relevant marine diatom, features bi-parental plastid inheritance in the course of sexual reproduction. This observation inspired the recombination detection we pursued in this paper over a ~1,400-nucleotide-long region of the plastidial rbcL...
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ژورنال
عنوان ژورنال: Research in Microbiology
سال: 2011
ISSN: 0923-2508
DOI: 10.1016/j.resmic.2011.06.005