منابع مشابه
Tremorgenic toxins produced by soil fungi.
Penitrem A or an unknown tremorgenic toxin, "X," was produced by 10 of 60 fungal isolates obtained from a pasture involved in an outbreak in cattle and sheep resembling migram and ryegrass staggers. Tremorgenic properties of extracts containing penitrem A or toxin X were confirmed by bioassay.
متن کاملToxicity of benthic dinoflagellates on grazing, behavior and survival of the brine shrimp Artemia salina
Harmful algae may differently affect their primary grazers, causing sub-lethal effects and/or leading to their death. The present study aim to compare the effects of three toxic benthic dinoflagellates on clearance and grazing rates, behavioral changes, and survival of Artemia salina. Feeding assays consisted in 1-h incubations of brine shrimps with the toxic Prorocentrum lima, Gambierdiscus ex...
متن کاملAssociated bacterial flora, growth, and toxicity of cultured benthic dinoflagellates Ostreopsis lenticularis and Gambierdiscus toxicus.
The growth, toxicity, and associated bacterial flora of 10 clonal cultures of the toxic benthic dinoflagellates Ostreopsis lenticularis and Gambierdiscus toxicus isolated from the coastal waters of southwest Puerto Rico have been examined. Clonal cultures of O. lenticularis grew more rapidly and at broader temperature ranges than those of G. toxicus. All five Ostreopsis clones were toxic, while...
متن کاملThe effects of ecological gradients on epiphytic benthic dinoflagellates found in Hawaiian waters
Ciguatera fish poisoning is thought to be caused from the toxin producing dinoflagellate, Gumbierdiscus toxicus. Many reports have shown an increase in ciguatera outbreaks in areas where there was previous disturbance to the reef. These disturbances open up new substrate for macroalgae and microalgae such as G. toxicus to settle and grow upon. Coastal development also has an impact on coral ree...
متن کاملModelling the Stoichiometric Regulation of C-Rich Toxins in Marine Dinoflagellates
Toxin production in marine microalgae was previously shown to be tightly coupled with cellular stoichiometry. The highest values of cellular toxin are in fact mainly associated with a high carbon to nutrient cellular ratio. In particular, the cellular accumulation of C-rich toxins (i.e., with C:N > 6.6) can be stimulated by both N and P deficiency. Dinoflagellates are the main producers of C-ri...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1987
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1541612