关键词: 中国, 外来海洋生物, 影响

Abstract: Through study on ecological diversity of myxobacteria in some areas of Hebei , Yunnan , and the Qinghai-Tibet Plateau , more than 150 st rains of 10 genera ( Archangium , Myxococcus , Cystobacter , Corallococcus , Melit tangium , Sorangium , Polyangium , Chondromyces , Angiococcus and Stigmatella) of Myxococcales were isolated from 42 samples , including some special strains that have never been described before. These strains were preliminary identified to generic level by their fruiting bodies , swarms , myxospores and vegetative cells. Comparison of myxobacteria statistics with the different sites , vegetations and nut rition sources of these special habitat sshows wide distribution and variety of ecological diversity of myxobacteria. This sets a strong base for developing and utilizing myxobacteria efficiently.

Key words: alien marine species, impact