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OALib Journal期刊
ISSN: 2333-9721
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悬沙胁迫下三疣梭子蟹仔蟹的rna/dna比率和dna损伤
DOI: 10.3724/SP.J.1145.2012.00251, PP. 251-255
Keywords: 悬沙,仔蟹,成活率,rna/dna比率,dna损伤
Abstract:
为探讨悬沙对仔蟹的影响，以三疣梭子蟹（portunustrituberculatus）仔蟹为受试生物，研究不同悬沙浓度（0、50、100、500、1000和5000mgl-1）下i期仔蟹的成活率、rna/dna比率和dna损伤情况.结果表明，低浓度悬沙（≤500mgl-1）对仔蟹无明显影响，高浓度悬沙（≥1000mgl-1）对仔蟹的成活率几乎无影响，但会延迟仔蟹蜕壳变态的时间，降低rna/dna比率，导致彗星细胞的拖尾率、尾长和尾矩显著上升.可见，rna/dna比率和dna损伤指标能够有效评估悬沙对仔蟹的影响.图5参27
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