AEM
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Xu, L.
Right arrow Articles by Jiang, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Xu, L.
Right arrow Articles by Jiang, C.
Agricola
Right arrow Articles by Xu, L.
Right arrow Articles by Jiang, C.

 Previous Article  |  Next Article 

Appl. Environ. Microbiol., Jan 1996, 244-248, Vol 62, No. 1
Copyright © 1996, American Society for Microbiology

Diversity of Soil Actinomycetes in Yunnan, China

L Xu, Q Li and C Jiang
Yunnan Institute of Microbiology, Yunnan University, 650091 Kunming, Yunnan, China

Since 1978, about 4,200 soil samples have been collected from 22 selected areas of various vegetational and climatic types throughout the province of Yunnan. Actinomycetes of 29 genera were isolated by the methods employed. The correlations between diversity and climate were grouped into tropical, subtropical plateau, cool temperate mountain, and snowy mountain types. Actinomycete populations of the first two types were more complex than were the other ones. Correlations between actinomycete diversity and vegetation were also attempted. Six types of vegetation were compared. The diversity of actinomycetes was greatest in soil samples of a primeval forest, with an average of 9.0 genera isolated, followed by secondary forest and vegetable farmland samples, with averages of 6.7 and 6.5 genera isolated, respectively. The upper limit for the occurrence of thermophilic actinomycetes is about 3,500 m above sea level in Yunnan. Psychrophilic actinomycetes were isolated at up to the same altitude. In addition, the drier and poorer the soil was and the cooler the climate was, the lower the count of actinomycetes was and the higher the percentage of streptomycetes observed was. The genus Streptomyces appears to be the most important in ecological function. It represents up to 90% of all soil actinomycete diversity in Yunnan and is likely an important characteristic of the soil actinomycete population.





Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Microbiol. Mol. Biol. Rev. Eukaryot. Cell All ASM Journals

Copyright © 1996 by the American Society for Microbiology. All rights reserved.