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外生菌根形态及根毛生长状态与黑松生长的关系(PDF)

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

Issue:
2008年03期
Page:
107-111
Column:
研究论文
publishdate:
2008-05-20

Article Info:/Info

Title:
Ectomycorrhizal morphology and root hair growth and their relationships with the growth of Pinus thunbergii seedlings
Article ID:
1000-2006(2008)03-0107-05
Author(s):
ZHENG Ling WU Xiao-qin*
College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China
Keywords:
Pinus thunbergii Ectomycorrhiza Ectomycorrhizal morphology Root hairs
Classification number :
S718.81
DOI:
10.3969/j.jssn.1000-2006.2008.03.026
Document Code:
A
Abstract:
In this paper, three ectomycorrhizal fungi were inoculated to Pinus thunbergii seedlings. The ectomycorrhizal morphologies, as well as root hair growth and mantle, hartig net distribution were observed. The morphology of different ectomycorrhizas was various. The dominant forms of ectomycorrhizas developed by Rhizopogen luteous(R1) and Pisolithus tinctorius(Pt2) were coralloid branching, dichotomous branching, and multilevel dichotomous branching. The dominant forms of ectomycorrhizas developed by Boletus edulis(Be) were dichotomous branching and club-shaped ectomycorrhiza with a enlarged apex. The morphologies of ectomycorrhizas seemed not obviously correlated with the seedlings growth. Root hairs were observed in ectomycorrhizal short root. It showed some significant correlation with the seedlings growth. The percentage of ectomycorrhizal short roots with root hairs was higher in R1 and Pt2 than that in Be treatment. At the same time, many Hartig net hyphae were observed in the growth region of root hairs in the former, but many other fungi were observed in Be and the control treatment. This study was helpful to understand the root hairs growth and their function in the ectomycorrhizas. It was also useful to further explore the reciprocity and coevolution between the host plant and mycorrhizal fungi.

References

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Last Update: 2013-05-20