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水杉赤枯病病原形态及分子鉴定(PDF)

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

Issue:
2013年05期
Page:
75-80
Column:
研究论文
publishdate:
2013-09-30

Article Info:/Info

Title:
Morphological and molecular identification of Metasequoia red blight
Article ID:
1000-2006(2013)05-0075-06
Author(s):
CHI Mingqiang1 WANG Yan2 YE Jianren1* ZHANG Yuefeng2
1.Jiangsu Key Laboratory for Prevention and Control of Invasive Species, College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China;
2.Shanghai Forestry Station, Shanghai 200072, China
Keywords:
Metasequoia red blight Alternaria tenuissima Pestalotiopsis heterocornis morphological identification molecular identification
Classification number :
S763
DOI:
10.3969/j.issn.1000-2006.2013.05.015
Document Code:
A
Abstract:
The occurrence regularity of Metasequoia red blight disease in Shanghai and Nanjing were investigated and analysed. The pathogens of the disease were identified with morphological and molecular methods. Results showed: Metasequoia of single row or sporadic distribution was more sensitive than that with a higher canopy density. The resistance of Metasequoia that used as street tree was weak, and the disease was more serious than that planted in farm. The Metasequoia with a poor growth potential was more likely to be infected, especially the ones used as street trees. By isolation and culture of diseased tissue, artificial inoculation test, morphological observation and molecular identification by ITS analysis of the isolated strain, the pathogen of Metasequoia red blight was identified as Alternaria tenuissima and Pestalotiopsis heterocornis.

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Last Update: 2013-09-30