|Table of Contents|

Effect of Sulfur on Microbial Structure of AM Fungi in Soybean Rhizosphere(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年06期
Page:
990-995
Research Field:
Publishing date:

Info

Title:
Effect of Sulfur on Microbial Structure of AM Fungi in Soybean Rhizosphere
Author(s):
LI Jin1 CAI Bai-yan12?LIU Xiao-rui1 JIE Wei-guang2
1. Key Laboratory of Microbiology, College of Life Science, Heilongjiang University, Harbin 150080,Heilongjiang;
2. Heilongjiang East College, Harbin 150086, Heilongjiang, China
Keywords:
SoybeanSulfurArbuscular mycorrhizal fungiDiversityDenaturing gradient gel electrophoresis
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.06.0990
Abstract:
A pot experiment was carried out to research the effect of different sulfur levels on microbial structure of AM fungi and its infection rate of Heinong 48 soybean at podding stage. The results showed that sulfur levels had influences on both microbial structure of AM fungi and its infection rate. When the soil sulfur level was 0.02 g?kg-1, both the soybean roots and AM fungi had a high diversity. However, when the sulfur level rised, they were both decreased. And the diversity was lowest when no sulfur was added to the soil. These results indicate that addition of sulfur appropriatelycould increase the diversity of AM fungi and when the sulfur level was too high the diversity of AM fungi was decreased. Moreover, the results from analyzing the twelve bands in DGGE map suggest that the twelve bands with the corresponding species are Glomus AM fungi, and the Glomus were the dominant AM fungi both in soybean roots and rhizosphere.

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Last Update: 2014-09-15