一种火龙果腐烂病病原菌鉴定及生物学特性研究  

Identification and Biological Characteristics of a Pathogen Causing Fruit Rot of Hylocereus undatus(Haw.)Britt.et.Rose

作　　者：李敏[1,2,3,4] 胡美姣[1,4,5] 高兆银[1,2,3,4] 薛丁榕[5] 杨冬平[1,4,5] 杨波[1,4,5] 张正科[1,2,3,4] 

机构地区：[1]中国热带农业科学院环境与植物保护研究所,海南海口571101 [2]农业部热带作物有害生物综合治理重点实验室,海南海口571101 [3]农业部热带农林有害生物入侵监测与控制重点开放实验室,海南海口571101 [4]海南省热带农业有害生物监测与控制重点实验室,海南海口571101 [5]海南大学环境与植物保护学院,海南海口570228

出　　处：《热带作物学报》2012年第11期2044-2048,共5页Chinese Journal of Tropical Crops

基　　金：南省自然科学基金(No.30232);中央级公益性科研院所基本科研业务费专项(No.2011hzs1J027;No.2011hzs1J004)

摘　　要：对火龙果腐烂病的病原进行鉴定,并对其病原菌的生物学特性进行分析研究。结果表明:该病原菌为双间柱顶孢[Scytalidium dimidiatum(Penz.)Sutton and Dyko],生长最适温度为30℃,生长最适pH为7,病原菌生长的最佳碳源是棉子糖、葡萄糖、蔗糖,最佳氮源是硫酸铵、蛋白胨;连续光照有利于病菌生长。病原菌的致死温度为75℃,时间为10 min。Morphological identification and biological characteristics of the pathogen causing fruit rots of Hylocereus undatus （Haw.）Britt. et. Rose were studied. The result showed that the pathogen was identified as Scytalidium dimidiatum. The optimal temperature for the isolate growth was 30 ℃. The optimal pH value for the isolate growth was 7. Raffinose, sucrose and glucose were the optimal carbon sources for the isolate growth, the optimal nitrogen sources were ammonium sulfate and peptone. Durative light had distinct effect on the isolate growth. Lethal temperature for the isolate growth was 75℃ for 10 minutes.

关 键 词：火龙果 双间柱顶孢 生物学特性 

分 类 号：S436.639[农业科学—农业昆虫与害虫防治]