干旱区生态环境知识资源中心(Arid): 几种生态环境中AM真菌多样性比较研究

Arid

	几种生态环境中AM真菌多样性比较研究
其他题名	Comparison of diversity of arbuscular mycorrhizal fungi in different ecological environments
	王发园 1; 刘润进 1; 林先贵 2; 周健民 2
来源期刊	生态学报
ISSN	1000-0933
出版年	2003
卷号	23 期号:12 页码:2666-2671
中文摘要	对渤海湾的海岛林地（IFL），黄河三角洲盐碱地（SAS）、鲁西南煤矿（CMS）和内蒙古退化草原（DGL）等几种生态环境中丛枝菌根（Arbuscular mycorrhiza，AM）真菌的多样性进行了调查。结果表明，在所调查的样点中，AM真菌的物种多样性不同，IFL中的最高，其次是SAS，CMS和DGL的最低。各地AM真菌种的丰度、孢子密度、频度、相对多度等也差异较大。这与各生态环境中的生态因子的差异相关。在总体上，Glomus属在各采样点出现的频度和相对多度最高，其次是Acaulospora属。但不同生态环境之间又存在差异，例如CMS中Acaulospora属的频度和相对多度比Glomus属的最高。在IFL中，Gigaspora属的相对多度比Acaulospora属的高。各生态环境中的生态优势种不同，如在CMS中是A.mellea，在IFL和SAS土壤中却分别是Gi.margarita和G.caledonium，而DGL中各个种的分布却较均衡。
英文摘要	Arbuscular mycorrhizal (AM) fungi inhabit a variety of ecosystems including farmland, forests, grasslands, deserts, marine beaches, saline soils, coal-mine spoil heaps, and industrially polluted zones, The biodiversity of AM fungi is considerable. The first objective of this paper was to survey the species richness, spore density, frequency, and relative abundance of AM fungi in the island forest-land of Bohai Bay, Shandong Province, the saline soils in Yellow River Delta, the coal-mine spoil heaps in south-western Shandong Province and the degenerated grassland in Inner Mongolia. A second objective was to compare the differences in AM diversity among the various ecosystems. To do this, soil and roots of dominant wild plants were collected randomly from the four surveyed environments. Samples were studied in the laboratory using trap cultures and spore counts which enabled AM fungi to be identified. There were 40 species of AM fungi in the island forest-land, 33 in the saline soils, 21 in coal-mine spoil soils and 14 in degenerated grassland respectively. The differences in species richness, spore density, frequency, relative abundance of AM fungi in these sites were related to different ecological factors in the surveyed Environments. Generally, Glomus was the dominant genus, having the greatest frequency and relative abundance at all sample sites, and this was followed by Acaulospora. However, the frequency and relative abundance of Acaulospora at coal-mine spoil sites was higher than those of Glomus. At the island forest-land , the relative abundance of Gigaspora was higher than Acaulospora. A. mellea was the dominant species at the coal-mine spoil sites while Gi. margarita was dominant in the island forest-iand, and G. caledonium in the saline soils. The distribution of the various AM fungi in the degenerated grassland was relatively even, with no species being particularly abundant.
中文关键词	黄河三角洲 ; 废煤矿 ; 退化草原 ; 物种多样性
英文关键词	Yellow River Delta coal mine spoil degenerated grassland species diversity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:1270207
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204306
作者单位	1.莱阳农学院菌根生物技术实验室, 莱阳, 山东 265200, 中国; 2.中国科学院南京土壤研究所, 南京, 江苏 210008, 中国
推荐引用方式 GB/T 7714	王发园,刘润进,林先贵,等. 几种生态环境中AM真菌多样性比较研究[J],2003,23(12):2666-2671.
APA	王发园,刘润进,林先贵,&周健民.(2003).几种生态环境中AM真菌多样性比较研究.生态学报,23(12),2666-2671.
MLA	王发园,et al."几种生态环境中AM真菌多样性比较研究".生态学报 23.12(2003):2666-2671.