山核桃幼苗枯萎病病原菌研究初报

IF 0.6 Q4 PLANT SCIENCES

Australasian Plant Disease Notes Pub Date : 2023-02-22 DOI:10.1007/s13314-023-00491-5

S. Praveena, Shambhu Kumar, P. A. Jose

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引用次数: 0

摘要

云南石竹是一种重要的商业树木，分布于南印度和斯里兰卡。在苗圃里培育的幼苗被发现感染并枯萎。发病率记录为近40%。从疾病样本中分离出真菌，并在PDA上生长。在致病性测试后，从患病的茎中重新分离并鉴定了同一种真菌，这表明了分离的真菌的致病行为，从而满足了Koch的假设。根据培养和形态学特征，结合分子分析（ITS和TEF1），确定该病原体为毕氏Clonostachys byssicola（生物油桃科）。本通讯是首次报道印度喀拉拉邦西高止山脉南部的C.byssicola引起deccanensis幼苗枯萎。

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First report of Clonostachys byssicola causing seedling wilt in Litsea deccanensis

Litsea deccanensis is a commercially important tree, distributed in South India and Sri Lanka. The seedlings raised in the nursery were found infected and wilted. The disease incidence rate was recorded nearly 40%. The fungus was isolated from the disease sample and grown on PDA. The same fungus was re-isolated and identified from diseased stems after the pathogenicity test, which showed the pathogenic behaviour of the isolated fungus, thus fulfilling Koch's postulates. Based on cultural and morphological characteristics followed by molecular analyses (ITS and TEF1), the pathogen was identified as Clonostachys byssicola (Bionectriaceae). This communication is the first report of C. byssicola causing seedling wilt in L. deccanensis from the Southern Western Ghats, Kerala, India.

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来源期刊

Australasian Plant Disease Notes PLANT SCIENCES-

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： Australasian Plant Disease Notes is an international journal for publication of short reports from all countries which describe original research that transcends national boundaries. All aspects of plant pathology are covered including new geographical records of diseases or pathogens, new pathogens or pathogen strains, taxonomic papers, quarantine notes, disease management and diagnostic methods. Australasian Plant Disease Notes is a publication of the Australasian Plant Pathology Society.