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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Effect of heavy metal pollution on growth, carotenoid content andbacterial flora in the gut of Perna viridis (L.) in in situ condition
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Effect of heavy metal pollution on growth, carotenoid content andbacterial flora in the gut of Perna viridis (L.) in in situ condition

机译：重金属污染对原位条件下Perna viridis（L.）肠道生长，类胡萝卜素含量和细菌菌群的影响

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摘要

The soft tissue of females of Perna viridis showed highest concentration of Fe, Mn, Cu, Zn, Cd, Pb, Co, Ni and Hg followed by males and indeterminates. The Hg was not detected in different sexes during May. The biomagnification of all heavy metals was maximum in gonad. In general, the order of metal accumulation in the soft tissue of Perna viridis was Fe > Co > Zn > Ph > Ni > Cu > Mn > Cd > Hg. The definite correlation between biomagnification of different heavy metals in whole animal or its different organs could not be observed with that of their concentrations in sediment. However, the concentration of all heavy metals was higher in soft tissue or its different organs than sea water. The concentration of total carotenoids and unsaponifiable carotenoid were higher in females followed by males and indeterminates. Both types of carotenoids in gonads had higher concentration than other body organs. In general, the total count of pathogenic bacteria was maximum in the gut of females followed by indeterminates and males. The percentage reduction of pathogenic bacteria after five days of starvation ranged from 28.92 to 42.81 in the least reduction category to 61.59 to 75.25 for the highest reduction category.
机译：绿带金娘女性的软组织中铁，锰，铜，锌，镉，铅，钴，镍和汞的浓度最高，其次是雄性和不确定的。五月份未检测到不同性别的汞。性腺中所有重金属的生物放大倍数最大。一般而言，绿藻在软组织中的金属积累顺序为：Fe> Co> Zn> Ph> Ni> Cu> Mn> Cd> Hg。在整个动物或其不同器官中，不同重金属的生物放大倍数与其在沉积物中的浓度之间没有明确的相关性。但是，软组织或其不同器官中所有重金属的浓度均高于海水。女性中总类胡萝卜素和不可皂化类胡萝卜素的浓度较高，其次是男性和不确定的。性腺中的两种类胡萝卜素的浓度均高于其他人体器官。通常，女性肠道中的致病菌总数最大，其次是不确定的和男性。饥饿五天后病原菌的减少百分比范围从最小减少类别的28.92至42.81，到最大减少类别的61.59至75.25。

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