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松材线虫在抗性黑松体内移动及寄主水势变化(PDF)

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

Issue:
2007年04期
Page:
125-127
Column:
研究论文
publishdate:
2007-04-20

Article Info:/Info

Title:
Study on Dispersal Behavior of Pine Wood Nematode and Water Potential Inside Resistant Pinus thunbergii
Article ID:
1000-2006(2007)04-0125-03
Author(s):
SU Sheng-rong12 YE Jian-ren1*
1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 2. College of Life and Environment Science Huangshan College, Huangshan 245041, China
Keywords:
Bursaphelenchus xylophilus Water potential Dispersal behavior and distribution Resistant Pinus thunbergii
Classification number :
S432.4+5
DOI:
10.3969/j.jssn.1000-2006.2007.04.028
Document Code:
A
Abstract:
Bursaphelenchus xylophilus isolate was inoculated on one-year-old resistant and susceptible seedlings of Pinus thunbergii respectively, and nematode dispersal and water potential were studied thereafter. Results showed that, at the initial stage the number of nematodes was small and nematode dispersal rate was low. Most passing nematodes in resistant seedlings were downwards and the number was distinctly smaller than that in the susceptible. Passing nematodes in a susceptible were both upwards and downwards, and nematode dispersal rate and number of the downwards were significantly smaller than those of the upwards. Later, the nematode dispersal rate rose when nematodes began to propagate. The result of conduction in water potential showed that both the susceptible and the resistant had the same variation in the values, in which they rose first then got down but rose again at last. This study might provide some guides for histopathology studies on pine infected by B. xylophilus.

References

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Last Update: 2013-05-20