2010年中国黄海绿潮藻优势种分子生物学鉴定及形态特征研究（英文）  

Molecular identification of dominant green tide algae in Yellow Sea China 2010, and their morphological characteristics

作　　者：高嵩[1] 马家海[1] Shimada Satoshi 陈斌斌[1] 雎敏[1] 蔡永超[1] 曾宴平[1] 

机构地区：[1]上海海洋大学水产与生命学院,上海201306 [2]Graduate School of Humanities and Sciences, Ochanomizu University

出　　处：《生态科学》2013年第6期703-710,共8页Ecological Science

基　　金：国家海洋局项目(201205010),(MATHAB00000000)

摘　　要：近五年来,在中国南黄海海域连续爆发了大规模的绿潮灾害。该论文主要针对采集自2010年绿潮中绿潮优势种藻体,结合分子生物学方法和主要形态特征进行研究。对样品ITS序列分析的结果表明,绿潮优势种为Ulva linza-procera-prolifera类群(LPP complex)。5S rDNA间隔区序列分析结果显示,样品中LPP类群的种类主要为Ulva prolifera,说明绿潮中最为主要的种类为Ulva prolifera。此外,在2010年绿潮的整个过程中,漂浮Ulva compressa一直存在,而且部分基本形态特征发生了改变。在绿潮中,Ulva compressa可以生长为气囊状而漂浮于海面,成为其他藻体的附着基质,从而有利于绿潮的迁移和扩大。尽管发生了形态变化,绿潮的主要种类是LPP和Ulva compressa,其中管状中空分枝繁多的Ulva prolifera是最为主要的。During the last five years, massive green tide disasters have broken out annually in southern Yellow Sea. This study aimed mainly at the dominant species collected from 2010 green tide, using molecular methods and morphological characteristics in combination. The result of ITS sequencing analysis showed that the dominant species was clustered into LPP（Ulva linza-procera-prolifera） clade. Further study of LPP clade by using 5S rDNA spacer region showed that the most dominant species was Ulva prolifera. Besides, Ulva compressa existed during the entire 2010 green tide, experiencing some changes in basic morphology. It transformed into a bubble-like structure, which enabled it to float on the surface of the water. This kind of thalli can be attached by other thalli, thus making it conducive to the migration and expansion of green tide. As some morphological characteristics had changed, species belonging to LPP complex and Ulva compressa were major species in green tide. Of these species, the tubular and intensively branched thalli of Ulva prolifera were the most dominant.

关 键 词：绿潮藻 形态特征 序列分析 气囊状 LPP ULVA compressa 

分 类 号：Q173[生物学—水生生物学]