NDLI: Microbial diversity of topographical gradient profiles in Fushan forest soils of Taiwan

Content Provider	Springer Nature Link
Author	Tsai, Shu Hsien Selvam, Ammaiyappan Yang, Shang Shyng
Copyright Year	2007
Abstract	To evaluate the microbial diversity of Fushan forest soils, the variation of soil properties, microbial populations, and soil DNA with soil depth in three sites of different altitude were analyzed. Microbial population, moisture content, total organic carbon (C$_{org}$), and total nitrogen (N$_{tot}$) decreased with increasing soil depth. The valley site had the lowest microbial populations among the three tested sites due to the low organic matter content. Bacterial population was the highest among the microbial populations. The ratios of cellulolytic microbes to the total bacteria in organic layers were high, implying their roles in the carbon cycle. The microbial biomass carbon (C$_{mic}$) and nitrogen (N$_{mic}$) contents ranged from 130.5 to 564.1 μg g$^{−1}$ and from 16.7 to 95.4 μg g$^{−1}$, respectively. The valley had the lowest C$_{mic}$ and N$_{mic}$. The organic layer had the highest C$_{mic}$ and N$_{mic}$ and decreased with soil depth. Analysis using denaturing gradient gel electrophoresis (DGGE) of polymerase chain reaction (PCR) amplicons of 16S rDNA showed that the bacterial diversity of the three sites were very similar to each other in the major bands, and the variation was in the minor bands. However, the patterns in PCR-DGGE profile through gradient horizons were different, indicating the prevalence of specific microbes at different horizons. These results suggest that the microbial diversity in the deeper horizons is not simply the diluted analogs of the surface soils and that some microbes dominate only in the deeper horizons. Topography influenced the quantity and diversity of microbial populations.
Starting Page	814
Ending Page	824
Page Count	11
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	22
Issue Number	5
e-ISSN	14401703
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-01-26
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microbial diversity Biomass carbon and nitrogen DGGE Profile Soil DNA Forestry Behavioural Sciences Evolutionary Biology Zoology Plant Sciences Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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