کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2065707 1076934 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microcystin production by Microcystis aeruginosa exposed to different stages of herbivorous zooplankton
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوشیمی، ژنتیک و زیست شناسی مولکولی (عمومی)
پیش نمایش صفحه اول مقاله
Microcystin production by Microcystis aeruginosa exposed to different stages of herbivorous zooplankton
چکیده انگلیسی

Microcystin (MC) production by four monoclonal Microcystis aeruginosa strains was evaluated in response to infochemicals (indirect exposure) released from different stages of herbivorous zooplankton (neonate/juvenile and adult Daphnia magna and Moina macrocopa). The intracellular MC and extracellular MC concentrations were significantly different among the control and treatments with zooplankton culture media filtrates (p<0.05), and in most cases MC production was significantly higher (p<0.05) in strains exposed to infochemicals released from adult zooplankton rather than those of neonate/juvenile zooplankton in four strains of M. aeruginosa. Compared to intracellular MC (385.0–5598.6 μg g−1 DW), very low concentrations of extracellular MC (9.9–737.6 μg ml−1) were released, but both showed similar temporal patterns over the course of the experiment. This result might be attributed to the fact that adult zooplankton produced more infochemical signals than equal numbers of smaller juveniles and neonates. It is the first study to provide evidence that MC production might be impacted by infochemicals released from different stages of zooplankton, mediated with physiological characteristics, body size, and feeding habits.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Toxicon - Volume 51, Issue 5, April 2008, Pages 882–889
نویسندگان
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