文章基本信息

标题：Colony Formation in Planktonic Algae Induced by Zooplankton Culture Media Filtrate
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作者：Kyong Ha ; Min-Ho Jang ; Noriko Takamura 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2004
卷号：19
期号：1
页码：9-16
DOI：10.1080/02705060.2004.9664506
出版社：Taylor & Francis
摘要：Grazer induced colony formation was examined using the cyanobacterium Microcystis aeruginosa K tzing and the green alga Scenedesrnus dimorphus (T rpin) K tzing. Algae were cultured in a medium with or without filtered water taken from cultures ofDaphnia magna Straus or Moina rnacrocopa Straus. Exposure to the zooplankton culture media filtrate (ZCMF) promoted colony formation in both S. dirnorphus and M. aeruginosa, with the magnitude of this response being directly proportional to the relative volume of ZCMF that was added to the culture medium. However, the degree of colony formation of M. aeruginosa was weakly influenced by ZCMF by comparison to that for S. dirnorphus. The mean number of cells per colony and mean particle biovolume of the two algal species increased significantly from 8 hr to 72 hr for the D. magna-CMF treatment and the M. macrocopa-CMF treatment (p < 0.001), most likely due to the influence of chemicals released from D. magna or M. rnacrocopa. Such info-chemicals could act as signals on trigger to induce colony development.