中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 中科院水生所知识产出(2009年前)  > 期刊论文
题名: Studies on recruitment and growth characteristic of Microcystis in sediment
作者: Li Kuo-Yu ; Song Li-rong ; Wan Neng
通讯作者: Li Kuo-Yu ; Inst Hydrobiol, Chinese Acad Sci, Wuhan, 430072, China
刊名: Acta Hydrobiologica Sinica
发表日期: 2004
卷: 28, 期:2, 页:113-118
收录类别: 其他
英文摘要: Effect of different environmental factors, such as temperature, light and N/P, on the recruitment of Microcystis colony has been studied. The growth characteristics of Microcystis colony samples from the sediment and pelagic zone were also compared. Meanwhile, the influence of temperature on the chlorophyll a fluorescence of both dormant and vegetative cells of Microcytis sp. 940 was investigated too. The results suggested that the recruitment of Microcystis colony out of the sediment was affected significantly by temperature and light, but not N/P. Microcystis colony in the sediment initiated growth at 15degreeC and 30mum-2s-1, then buoyed to the surface after 15 days. Cultured at 10degreeC and 30mum-2 s-1, Microcystis colony in sediment couldn't recruit during experiment. At 20degreeC and 30muEm-2s-1, Microcystis colony grew actively in sediment I then moved into water after 5 days. The recruitment wasn't affected by different N/P. Microcystis colony initiating growth could obtain enough N/P in sediment. After Microcystis colony moved into water, its growth was restrained by N/P in water. The growth characteristic of Microcystis colony in sediment and pelagic zone was researched. Incubated at IOT and 15degreeC, The growth of Microcystis colony in sediment and pelagic zone was laggard. In contrast to low temperature, its growth at 20degreeC and 25degreeC was active. The growth of Microcystis colony depended on light. With increasing of light intensity, its growth rate enhanced gradually. In darkness, it couldn't grow normally and was decomposed gradually by bacteria. However, the Mcrocystis colony that were illuminated at 15degreeC and 30muEm-2s-1 grew actively. N/P had no effect on the initiating growth of Microcystis colony in sediment, because the colony could absorb N/P from sediment. But Microcystis colony that had already come into pelagic zone would be constrained by N/P. It was found that the optimal condition for recruitment occurred at 20degreeC And 30muEm-2s-1, and the optimal condition for its growth was also 20degreeC and 30muEm-2s-1, which was similar to the growth Microcystis colony in the pelagic zone. Incubated at 10degreeC and 15muEm-2s-1, the F0 fluorescence of the vegetative cells of Microcystis reduced, but that of the dormant cells of Microcystis sp. 940 increased similarly at 20degreeC and 25degreeC, respectively. Microcystis colony that could survive in low temperature might have a mechanism to protect photosystem from damage. Our result illustrated that there is a close relationship between recruitment of Microsystis out of the sediment and the outbreak of Microcystis blooms.
ISSN号: 1000-3207
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18115
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Studies on recruitment and growth characteristic of Microcystis in sediment.pdf(256KB)----开放获取--View Download

Recommended Citation:
Li Kuo-Yu; Song Li-rong; Wan Neng.Studies on recruitment and growth characteristic of Microcystis in sediment,Acta Hydrobiologica Sinica,2004,28(2):113-118
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Li Kuo-Yu]'s Articles
[Song Li-rong]'s Articles
[Wan Neng]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Li Kuo-Yu]‘s Articles
[Song Li-rong]‘s Articles
[Wan Neng]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Studies on recruitment and growth characteristic of Microcystis in sediment.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院水生生物研究所 - Feedback
Powered by CSpace