Responses of polychaete Hydroides elegans life stages to copper stress
نویسندگان
چکیده
منابع مشابه
Development of a feeding trochophore in the polychaete Hydroides elegans.
Hydroides elegans is an indirectly developing polychaete with equal spiral cleavage, gastrulation by invagination, and a feeding trochophore. Expression of several transcription factors and differentiation genes has been characterized. Comparative analysis reveals evolutionarily conserved roles. For example, the synexpression of transcription factors FoxA and Brachyury suggests homology of prim...
متن کاملCombined effects of salinity, temperature and food on early development of the polychaete Hydroides elegans
Effects of salinity, temperature and food concentration on early development of the polychaete Hydroides elegans (Haswell) were examined in 4 laboratory experiments. Three 2-factor experlments tested the effects of salinity (15 to 35sl,,] and temperature (15 to 30°C ) on the survival and duration of development of H elegans from newly-released oocyte to 2-cell, 2-cell to blastula, and blastula ...
متن کاملInduction of larval settlement in the polychaete Hydroides elegans by extracellular polymers of benthic diatoms
Larval settlement of the polychaete Hydroides elegans Haswell, 1883 is mediated by marine biofilms; complex agglomerates of bacteria, diatoms, fungi and protozoa enmeshed in a matrix of extracellular polymers (EPS). In our previous investigations, benthic diatoms were demonstrated to be potent mediators of larval settlement in H. elegans. The putative diatom-derived settlement cues were heat-st...
متن کاملBrachyury, Tbx2/3 and sall expression during embryogenesis of the indirectly developing polychaete Hydroides elegans.
Expression of the transcription factor genes brachyury, Tbx2/3 and sall is characterized in detail for the first time in an indirectly developing spiralian with a feeding trochophore. In Hydroides elegans, gut formation proceeds by invagination during embryogenesis and is followed by feeding-dependent posterior growth during larval stages. Posterior growth gives rise to the reproductive and seg...
متن کاملEffect of biofilm formation by Pseudoalteromonas spongiae on induction of larval settlement of the polychaete Hydroides elegans.
The effects of culture conditions and chloramphenicol treatment on the induction of the marine bacterium Pseudoalteromonas spongiae to larval settlement of Hydroides elegans were investigated. The results showed that P. spongiae cells grown in the medium containing both yeast extract and peptone (YP-grown P. spongiae) was highly inductive to larval settlement, whereas P. spongiae cells grown in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2005
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps285089