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抗松材线虫病赤松家系的抗性测定及组织病理学观察

《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:
110-114
Column:
研究论文
publishdate:
2007-04-20

Article Info:/Info

Title:
Resistance Determination and Histopathological Observation of Induced Pinus densiflora Families from Japan to Bursaphelenchus xylophilus
Article ID:
1000-2006(2007)04-0110-05
Author(s):
ZHANG Yi WU Xiao-qin* WANG Yu YE Jian-ren
College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China
Keywords:
Pinus densiflora Bursaphelenchus xylophilus Resistance determination Histopathology
Classification number :
S432; S763
DOI:
10.3969/j.jssn.1000-2006.2007.04.025
Document Code:
A
Abstract:
The resistance of 27 wilt-resistant Pinus densiflora families induced from Japan to 3 isolates of Bursaphelenchus xylophilus was determinated. The result indicated that all 27 Pinus densiflora families had resistance to the 3 isolates, and there were significant differences from each other. It was found by bark inoculation that 13 families (No. 1, 4, 5, 6, 7, 8, 13, 14, 15, 17, 20, 23 and 25) were more resistant than others. The histopathological observation of No. 5 family sampled at 4, 8, 12, 24, 36, 48, 72, 96, 120h after inoculation showed that B. xylophilus migrated much slower in the induced pine seedlings than in the control. Pathological changes in parenchyma radial cell and the parenchymatous cells around resinosis cells occured later in wilt-resistant pine seedlings than in the control. In addition, the pathological changes occured more gently in the induced pine seedlings than in the control.

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Last Update: 2013-05-20