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丛枝茵根(AM)真菌对大青杨苗木根系的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2005年06期
Page:
35-39
Column:
研究论文
publishdate:
2005-10-20

Article Info:/Info

Title:
The Effects of Arbuscular Mycorrhizal Fungi on the Radicular System of Populus ussuriensis Seedlings
Article ID:
1000-2006(2005)06-0035-05
Author(s):
SONG Fu-qiang12 YANG Guo-ting3 MENG Fan-rong3 TIAN Xing-jun2 DONG Ai-rong3 WU Qing-yu3
1. College of Life Science Zhejiang Forestry College, Lin’an a l 1 a00, China; 2. School of Life Science Nanjing University, Nanjing 210093, China; 3. College of Forest Northeast Forestry University, Harbin 150040, China
Keywords:
-
Classification number :
S763
DOI:
10.3969/j.jssn.1000-2006.2005.06.009
Document Code:
A
Abstract:
The Populus ussuriensis seedlings were inoculated with four species of AM fungi, and we found that the mycorrhizal compounds could be formed by all the Glomus mosseae, G. intraradices, G. sinuosa and G. versiforrne. The taproot length and the ground diameter of inoculated seedlings were significantly different to the controls, so were the numbers of branch roots and the root biomass. The biomass accumulation of-seedlings was correlated significantly and positively to the infection.rate (P<0.05), which suggests that the P. ussuriensis is characterized by its dependence on the myeorrhization. The infection rate of G. mosseae and G. intraradices were 64.4% and 67.4% respectively. The volume and the total absorption area of root system were increased by inoculation with the AM fungi, especially for the active absorption region of that. The radicular active absorption region of seedlings inoculated with G. mosseae was 1.64 times of the controls. It is tested that the activity of the peroxidase in root system of inoculated poplars at the vigorous and final stage was much increased, while it was little decreased at the later stage as compared with the control treatments. The activity of the radicular polyphenol oxidase was much higher than the not colonized seedlings as effected by the AM fungi. This enzyme activity was highest when the poplar was growing vigorously, and the differences among the different inoculated ones were not

References

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Last Update: 2013-05-20