A probabilistic model of cell size reduction in Pseudo-nitzschia delicatissima (Bacillariophyta)
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چکیده
منابع مشابه
Link 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...
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Because domoic acid, a neurotoxic secondary metabolite produced by marine diatoms in the genus Pseudo-nitzschia, is hypothesized to be part of a high affinity iron uptake system, we investigated whether domoic acid could improve the competitive ability of Pseudo-nitzschia delicatissima, and whether the availability of iron changed the outcome of competition experiments. We found that domoic aci...
متن کاملMultiple rDNA ITS-types within the diatom Pseudo-nitzschia delicatissima (Bacillariophyceae) and their relative abundances across a spring bloom in the Gulf of Naples
The genus Pseudo-nitzschia includes a number of species responsible for blooms in coastal and open waters worldwide. P. delicatissima, a species reported as a potential source of amnesic shellfish poisoning (ASP), reaches high concentrations in the Gulf of Naples (Mediterranean Sea), where it regularly blooms in spring and, at times, in autumn. We assessed both intraand interindividual genetic ...
متن کاملCell-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 کاملDetection of stable pre-rRNA in toxigenic Pseudo-nitzschia species.
Nucleotide sequence analysis of ribosomal DNA (rDNA) spacer regions is useful for taxonomic comparisons of closely related microorganisms. These regions have been less useful for routine microbial identification and detection, partly because rRNA precursors (pre-rRNAs) in microbial cells are assumed to be too labile to be detectable by high-throughput probe hybridization methods. We characteriz...
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ژورنال
عنوان ژورنال: Journal of Theoretical Biology
سال: 2009
ISSN: 0022-5193
DOI: 10.1016/j.jtbi.2009.02.002