INVOLVMENT OF HIGH MOLECULAR WEIGHT Cd -BINDING PROTEINS IN Cd-ACCUMULATION IN THE SCALLOP MIZUHOPECTEN YESSOENSIS
Abstract
Mollusks have long been known to naturally
accumulate metals to high concentrations, particularly
in the digestive gland. Among them scallops have able
to accumulate toxic Cd to concentrations far exceeding
those in the surrounding seawater. We have studied the
cadmium-binding ligands in the digestive gland of M.
yessoensis The results have revealed two high molecular
weight proteins with a 72 and 43 kDa in M. yessoensis
with specifi c spectroscopic relation ( 254/ 280 нм >
2) and 10 SH-groups for both proteins. The results of the
study of cadmium accumulation in the digestive gland
of the scallop and the distribution of cadmium among
cytoplasmic proteins in the M. yessoensis from locations
with varying degrees of anthropogenic impact showed a
well-developed mechanism of adaptation in M. yessoensis
to highly toxic cadmium.
accumulate metals to high concentrations, particularly
in the digestive gland. Among them scallops have able
to accumulate toxic Cd to concentrations far exceeding
those in the surrounding seawater. We have studied the
cadmium-binding ligands in the digestive gland of M.
yessoensis The results have revealed two high molecular
weight proteins with a 72 and 43 kDa in M. yessoensis
with specifi c spectroscopic relation ( 254/ 280 нм >
2) and 10 SH-groups for both proteins. The results of the
study of cadmium accumulation in the digestive gland
of the scallop and the distribution of cadmium among
cytoplasmic proteins in the M. yessoensis from locations
with varying degrees of anthropogenic impact showed a
well-developed mechanism of adaptation in M. yessoensis
to highly toxic cadmium.
About the Authors
Авианна Жуковская
Тихоокеанский Океанологический Институт им. В. И. Ильичева
Дальневосточного отделения РАН (Владивосток)
Russian Federation
Russian Federation
Нина Бельчева
Тихоокеанский Океанологический Институт им. В. И. Ильичева
Дальневосточного отделения РАН (Владивосток)
Russian Federation
Russian Federation
Виктор Челомин
Тихоокеанский Океанологический Институт им. В. И. Ильичева
Дальневосточного отделения РАН (Владивосток)
Russian Federation
Russian Federation
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