火龙果茎枯病病原菌鉴定  

Identification of the pathogen causing stem blight of Hylocereus polyrhizus

作　　者：王玉梓 张超[1] 谢昌平[1] 李晶[1] 汤敬诚 WANG Yuzi;ZHANG Chao;XIE Changping;LI Jing;TANG Jingcheng(School of Plant Protection,Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests,Ministry of Education,Haikou 570228,China)

机构地区：[1]海南大学植物保护学院,热带农林生物灾害绿色防控教育部重点实验室,海口570228

出　　处：《植物病理学报》2024年第5期1058-1062,共5页Acta Phytopathologica Sinica

基　　金：海南省研究生创新科研课题(No.Qhys2021-57)。

摘　　要：红肉火龙果(Hylocereus polyrhizus),又名红火龙果,为仙人掌科(Cactaceae)三角柱属(Trigonocarpus)栽培种类,是热带、亚热带的名优水果之一,具有丰富营养、低热量和高纤维的特点,是优质的绿色水果。目前国外已报道的火龙果茎部真菌性病害主要有8种,分别为溃疡病[1]、炭疽病[2-4]、茎灰枯病[5]、茎斑病[6]、茎腐(果斑)病[7]、链隔孢疫病[8]、茎溃疡病[9]和茎(基)腐病[10-11];国内主要有6种,分别为是溃疡病、炭疽病、茎斑病、茎(基)腐病、红褐斑病[12]和白绢病[13]。As a famous fruits of the tropics and subtropics,the overall growth of Hylocereus polyrhizus have been seriously affect by a mature stem blight disease found in the regions of H.polyrhizus plantations in Danzhou city,Hainan province of China in 2022.It caused extensively grayish-white blight of the diseased stems.The pathogen isolated from the diseased plants was identified as Diaporthe passiflorae,based on pathogenicity test,morphological traits and phylogenetic analyses of multi-loci(ITS,TUB2,CAL,TEF1-αand HIS3).The results provide a theoretical basis for the field control of stem blight of H.polyrhizus.

关 键 词：仙人掌科 栽培种类 茎枯病 病原菌鉴定 茎斑病 白绢病 名优水果 真菌性病害 

分 类 号：S432.1[农业科学—植物病理学]