A new disease of kumquat (Fortunella margarita) caused by Colletotrichum karsti: twig and branch dieback

IF 1.9 3区 农林科学 Q2 AGRONOMY Phytopathologia Mediterranea Pub Date : 2023-09-15 DOI:10.36253/phyto-14544
Giuseppa Rosaria LEONARDI, Dalia AIELLO, Gaetano CAMILLERI, Valeria PIATTINO, Giancarlo POLIZZI, Vladimiro GUARNACCIA
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Abstract

Citrus fruit crops are important in many countries. Anthracnose, post bloom fruit drop, fruit stem-end rot, twig and branch dieback and gummosis, caused by Colletotrichum spp., are diseases that seriously threaten citrus production. Surveys of kumquat (Fortunella margarita) orchards were conducted in Eastern Sicily, Southern Italy, during 2022-23. Fungi isolated from twig and branch dieback of F. margarita were identified as Colletotrichum karsti through multi-locus (gapdh, tub2 and act) phylogeny. Pathogenicity and aggressiveness on detached apple fruit and kumquat plants were confirmed for a selection of representative isolates, although with different levels of disease incidence observed. This is the most comprehensive study on identification of C. karsti as the causal agent of twig and branch dieback of kumquat.
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金桔(Fortunella margarita)一种由炭疽病菌引起的新病害:枝条枯死
柑橘类水果作物在许多国家都很重要。炭疽菌引起的炭疽病、花后落果、果茎端腐病、枝条枯死病和甘露病是严重威胁柑橘生产的病害。在2022-23年期间,对意大利南部西西里岛东部的金桔果园进行了调查。通过多位点(gapdh、tub2和act)系统发育鉴定,从玛格丽塔(F. margarita)枝条和枝条枯枝上分离的真菌为炭疽菌(Colletotrichum karsti)。对苹果果实和金桔离体植株的致病性和侵袭性进行了鉴定,尽管观察到不同程度的发病率。本文是对金桔枝条枯死病原菌鉴定最全面的研究。
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来源期刊
Phytopathologia Mediterranea
Phytopathologia Mediterranea 生物-植物科学
CiteScore
4.40
自引率
8.30%
发文量
28
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.
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