Identification of Plectosphaerella melonis from cucumber plants in Ukraine

IF 1.9 3区农林科学 Q2 AGRONOMY

Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI:10.36253/phyto-12612

E. Kopilov, H. Tsekhmister, O. Nadkernychna, A. Kyslynska

引用次数: 2

Abstract

A fungus was isolated from diseased roots of Cucumis sativus grown in greenhouses. The morphological and cultural characteristics of the isolate allowed it to be classified as Plectosphaerella melonis. BLASTn analysis revealed 99% homology of the ITS sequence from the isolate with 14 Acremonium cucurbitacearum and P. melonis isolates, allowing attribution of the isolate to P. melonis (syn. A. cucurbitacearum). Koch’s hypothesis requirements were fulfilled for the isolate. Symptoms on host roots developed after 14 d of growing cucumber plants on infested soil. Plants of the cucumber variety Nizhynskyi 12 were very susceptible at the two leaf growth stage (2 weeks after sowing). Above-ground disease symptoms were absent after 14 d, even with severely diseased roots. This is the first report of P. melonis on C. sativus in Ukraine.

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从乌克兰的黄瓜植株中鉴定出甜瓜球孢菌

从温室栽培的黄瓜病根中分离到一种真菌。该分离物的形态和培养特征使其能够被归类为甜瓜球孢菌。BLASTn分析显示，该分离物的ITS序列与14个Acremonium cucurbitacerum和P.melonis分离物具有99%的同源性，从而可以将该分离物归属于P.meloni（syn.A.cucurbitcerum）。分离物符合Koch的假设要求。在受感染的土壤上种植黄瓜14天后，寄主根出现症状。黄瓜品种Nizhynskyi 12的植株在两叶生长阶段（播种后2周）非常敏感。地上疾病症状在14天后消失，即使是严重患病的根。这是梅洛尼斯P.melonis在乌克兰首次报道C.sativus。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Phytopathologia Mediterranea 生物-植物科学

CiteScore

4.40

自引率

8.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Phytopathologia Mediterranea is an international journal edited by the Mediterranean Phytopathological Union. The journal’s mission is the promotion of plant health for Mediterranean crops, climate and regions, safe food production, and the transfer of new knowledge on plant diseases and their sustainable management. The journal deals with all areas of plant pathology, including etiology, epidemiology, disease control, biochemical and physiological aspects, and utilization of molecular technologies. All types of plant pathogens are covered, including fungi, oomycetes, nematodes, protozoa, bacteria, phytoplasmas, viruses, and viroids. The journal also gives a special attention to research on mycotoxins, biological and integrated management of plant diseases, and the use of natural substances in disease and weed control. The journal focuses on pathology of Mediterranean crops grown throughout the world. The Editorial Board of Phytopathologia Mediterranea has recently been reorganised, under two Editors-in-Chief and with an increased number of editors.