期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
水质酸化对双棘臂尾轮虫种群动态的影响 被引量:2
1
作者 席贻龙 黄祥飞 《湖泊科学》 EI CAS CSCD 1999年第2期155-159,共5页
用人工酸化的东湖水为培养液对双棘臂尾轮虫进行室内单个体培养研究.结果表明,与用未酸化的东湖水培养结果相比,轮虫非混交雌体的平均产卵量在 pH6. 5、5 5和 4. 5时增加,而在 pH3.5时减少.在 pH5.5和 3.5... 用人工酸化的东湖水为培养液对双棘臂尾轮虫进行室内单个体培养研究.结果表明,与用未酸化的东湖水培养结果相比,轮虫非混交雌体的平均产卵量在 pH6. 5、5 5和 4. 5时增加,而在 pH3.5时减少.在 pH5.5和 3.5时轮虫种群的内禀增长率增大,种群中无混交雌体出现;而在pH6.5和4.5时内禀增长率减小,混交雌体百分率增大.在本实验pH范围内,双棘臂尾轮虫具有耐酸性. 展开更多
关键词 水质 双棘臂尾轮虫 种群动态 人工酸化
下载PDF
Comparison of Nucleic Acid Content among Non-diapause Pupae, Diapause Pupae and Eclosion-adult from Diapause Pupae of Papilio memnon 被引量:2
2
作者 易传辉 陈晓鸣 +1 位作者 史军义 周成理 《Agricultural Science & Technology》 CAS 2009年第3期101-103,107,共4页
[Objective] The aim of this study was to provide basis for deeply understanding the diapause mechanism of Papilio memnon L. [Method] RNA and DNA content of non-diapause pupae, diapause pupae and eclosion-adult from di... [Objective] The aim of this study was to provide basis for deeply understanding the diapause mechanism of Papilio memnon L. [Method] RNA and DNA content of non-diapause pupae, diapause pupae and eclosion-adult from diapause pupae at different development stages were detected by the colorimetry. [Result] RNA content of non-diapause pupae was 4.614 0-7.946 3 μg/mg, while diapause pupae was 4.326 0-5.885 3 μg/mg and eclosion-adult from diapause pupae was 20.779 3 μg/mg at initial stage. DNA content of non-diapause pupae was 0.448 7-0.535 0 μg/mg, while diapause pupae was 0.452 0-0.828 3 μg/mg and eclosion-adult from diapause pupae was 1.727 0 μg/mg at initial stage. [Conclusion] The nucleic acid content and change is related to the development stage. 展开更多
关键词 Papilio memnon Nucleic acid content DIAPAUSE PUPAE ADULT
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部