作　　者： ; ; ; ; ;

机构地区： 广东海洋大学水产学院

出　　处： 《湛江海洋大学学报》 2006年第3期36-40,共5页

摘　　要： 研究了4种Hg2+浓度对细基江蓠果孢子和四分孢子附着、萌发和生长的影响。结果表明:与对照组相比,Hg2+抑制了果孢子附着却促进了四分孢子的附着,但0.0025 mg/L浓度与对照组的差异不显著(P>0.05),各浓度间差异显著(P<0.05);Hg2+在实验浓度范围内(0.0025、0.0050、0.0075、0.0100 mg/L)影响了孢子的正常萌发,使孢子不能正常分裂和生长,刺激了孢子脱落,并且使盘状体的形态发生变异;`Hg2+不同浓度之间也存在显著差异(P<0.05),并且Hg2+浓度越高对孢子的萌发和生长影响越大。 The effect of four concentrations of Hg^2＋ on attachment, germination and growth of carpospore and tetraspore of Gracilaria tenuistipitata C. F. Chang et B. M. Xia was studied. The results showed：compared with control groups, Hg^2＋ restrained attachment of carpospore while promoted attachment of tetraspore; But discrepancy was insignificant between 0. 0025 mg/L groups and control groups（P〉0.05）while that between different Hg^2＋ concentrations were significant（P〈0.05）; Four concentrations of Hg^2＋ affected germination and restrained division and growth of spore , and Hg^2＋ stimulated spore fallout, then shape of plate spore was irregular; The effect of different concentrations of Hg^2＋ on spore had discrepancy（P〈0.05）. The higher concentrations of Hg^2＋ were, the more significant effect of Hg^2＋ on spore germination and growth would become.

关 键 词： 细基江蓠 果孢子 四分孢子 萌发 生长 汞离子

领　　域： [农业科学] [农业科学]