Novel species of Calonectria associated with Eucalyptus leaf blight in Southeast China

被引：63

作者：

Chen, S. F. ^{[1
,2
]}

Lombard, L. ^{[1
]}

Roux, J. ^{[1
]}

Xie, Y. J. ^{[2
]}

Wingfield, M. J. ^{[1
]}

Zhou, X. D. ^{[1
,2
]}

机构：

[1] Univ Pretoria, Dept Microbiol & Plant Pathol, FABI, ZA-0002 Pretoria, South Africa

[2] Chinese Acad Forestry, CERC, Zhanjiang 524022, Guangdong, Peoples R China

来源：

PERSOONIA | 2011年 / 26卷

关键词：

Cylindrocladium; Eucalyptus plantations; FuJian; pathogenicity; CYLINDROCLADIUM-PAUCIRAMOSUM; PRIMER SETS; 1ST RECORD; ROT; QUINQUESEPTATUM; PHYLOGENY; DISEASES; ROOT; FUSARIUM; COMPLEX;

D O I：

10.3767/003158511X555236

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Leaf blight caused by Calonectria spp. is an important disease occurring on Eucalyptus trees grown in plantations of Southeast Asia. Symptoms of leaf blight caused by Calonectria spp. have recently been observed in commercial Eucalyptus plantations in FuJian Province in Southeast China. The aim of this study was to identify these Calonectria spp. employing morphological characteristics, DNA sequence comparisons for the beta-tubulin, histone H3 and translation elongation factor-1 alpha gene regions and sexual compatibility. Four Calonectria spp. were identified, including Ca. pauciramosa and three novel taxa described here as Ca. crousiana, Ca. fujianensis and Ca. pseudocolhounii. Inoculation tests showed that all four Calonectria spp. found in this study were pathogenic on two different E. urophylla x E. grandis hybrid clones, commercially utilised in eucalypt plantations in China.

引用

页码：1 / 12

页数：12

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