青岛海洋大学学报(自然科学版)2001，Vol.31Issue(1)：61-68,8.
三角褐指藻(Phaeodactylum tricornutum)形态及其变异现象的研究
Studies on the Morphotype and Morphological Variation of Phaeodactylum tricornutum
摘要
Abstract
The morphotypes and morphological variations of Phaeodac tylumtricornutum, collected from cultures of Qingdao, Zhejiang, Shanghai and Xiamen were studied. The normal cultures of Qingdao and Shanhai had a high proportion of over 95% fusiforms, while over 90% of the cultures of Zhejiang and Xiamen consisted of triradiates. Only very small proportions of ovals(<0.1%) were found in the normal cultures. 2 clones of fusiform cells and 6 clones of triradiate cells were established. It was shown that both triadiates and fusiforms could produce ovals by division, and the ovals so produced could multiply to form further ovals, or grow either two or three arms, generally two, to form fusiform or triradiate cells. A proportion of the triadiate cells could shorten one arm and gradually pass, during successive divisions into the fusiform cells, however there was little to suggest that fusiform cells ever became triradiate by growing out a third arm. The effect of short-period changes in water salinity, temperature and light intensity on the conversion of morphotype was not notable. A high proportion of ovals was produced both in fusiform clones and triadiate clones under long-term stress of freshwater and lower temperature(4～8℃).关键词
三角褐指藻：不同藻株/形态类型/形态变异分类
农业科技引用本文复制引用
陆开宏,林霞,钱云霞..三角褐指藻(Phaeodactylum tricornutum)形态及其变异现象的研究[J].青岛海洋大学学报(自然科学版),2001,31(1):61-68,8.基金项目
中国科学技术发展基金会曾呈奎海洋科学基金课题 资助 （）
