Sex-, gametogenesis, and tidal height-related differences in levels of HSP70 and metallothioneins in the Pacific oyster Crassostrea gigas
作者： Anne-Leila Meistertzheim , Morgane Lejart , Nelly Le Goïc , Marie-Thérèse Thébault
DOI: 10.1016/J.CBPA.2008.10.004
关键词: Aquatic animal 、 Crassostrea 、 Hsp70 、 Zoology 、 Gonad 、 Biology 、 Ecology 、 Oyster 、 Gametogenesis 、 Pacific oyster 、 Gill 、 Biochemistry 、 Physiology 、 Molecular biology
摘要: Pacific oysters, Crassostrea gigas, living at a range of tidal heights, routinely encounter large fluctuations in temperature. We demonstrate that levels heat shock proteins (HSP) and other stress (metallothioneins, MTs) quantified by ELISA, remained similar gills, mantle digestive gland between oysters inhabiting low high heights. In contrast, endogenous HSPs MTs gonad changed significantly during gametogenesis. female gonads, the constitutive form HSP70 increased from immature (or resting) to mature stages (about more than 3-fold) decreased after spawning. male same expression patterns were observed, whereas once fully mature. Females presented higher concentration males spawning period. No significant difference was found among sampled hypothesize level eggs may increase survival oyster progeny.
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