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园艺学报 ›› 2023, Vol. 50 ›› Issue (12): 2723-2734.doi: 10.16420/j.issn.0513-353x.2022-0999

• 植物保护 • 上一篇    下一篇

新疆万寿菊枯萎病病原菌鉴定及生物学特性研究

努尔斯曼姑丽·艾海提1, 阿依加玛丽·阿卜杜扎伊尔1, 孙永民2, 韩文杰3, 郭庆元1,*(), 王丽丽1,*()   

  1. 1 新疆农业大学农学院,农业农村部西北荒漠绿洲农林外来入侵生物防控重点实验室,农林有害生物监测与安全防控重点实验室,乌鲁木齐 830052
    2 新疆维吾尔自治区花卉业管理中心,乌鲁木齐 830052
    3 晨光生物科技集团莎车有限公司,新疆莎车 844700
  • 收稿日期:2023-04-13 修回日期:2023-10-15 出版日期:2023-12-25 发布日期:2023-12-29
  • 通讯作者:
    *(E-mail:
  • 基金资助:
    新疆维吾尔自治区花卉协会横向课题(2019年); 新疆农业大学大学生创新项目(dxscx2022008)

Identification and Biological Characteristics of the Pathogens Causing Marigold Wilt in Xinjiang

Nursimangul·Aihaiti1, Aigamarie·Abdulzaire1, SUN Yongmin2, HAN Wenjie3, GUO Qingyuan1,*(), WANG Lili1,*()   

  1. 1 Key Laboratory of Prevention and Control of Invasive Alien Species in Agriculture & Forestry of the North-western Desert Oasis(Co-construction by Ministry and Province),Ministry of Agriculture and Rural Affairs,Key Laboratory of the Pest Monitoring and Safety Control of Crops and Forests,Agricultural College,Xinjiang Agricultural University,Urumqi 830052,China
    2 Flower Industry Management Center of Xinjiang Uygur Autonomous Region,Urumqi 830052,China
    3 Chenguang Biotechnology Group Shache Co., Ltd.,Shache,Xinjiang 844700,China
  • Received:2023-04-13 Revised:2023-10-15 Published:2023-12-25 Online:2023-12-29

摘要:

为明确新疆万寿菊枯萎病病菌种类和生物学特性,对其开展组织分离、单孢纯化、致病性测定和形态学结合系统发育学(ITS和EF-1α序列)的菌种鉴定以及生物学特性测定。结果表明共有4种病菌,藤仓镰刀菌(Fusarium fujikuroi)、茄腐镰刀菌(Fusarium solani)、木贼镰刀菌(Fusarium equiseti)和黄色镰刀菌(Fusarium culmorum)。菌种最适生长温度均为25 ℃;最适pH为6 ~ 7。藤仓镰刀菌在全黑暗条件下,其余病原菌在全光照条件下利于菌丝生长。藤仓镰刀菌在碳源乳糖,氮源硝酸钾或PDA和PSA培养基;木贼镰刀菌在碳源乳糖、氮源酵母浸粉或PDA培养基;茄腐镰刀菌在碳源乳糖、氮源蛋白胨或察氏培养基;黄色镰刀菌在碳源可溶性淀粉、氮源酵母浸粉和氯化铵或PSA、PDA和CA培养基的条件下,最利于各菌丝生长。致死温度分别是64、63、63和52 ℃。其中,茄腐镰刀菌分离频率最高为68%,是新疆万寿菊枯萎病的主要病原菌。

关键词: 新疆, 万寿菊枯萎病, 镰刀菌, 鉴定, 生物学特性

Abstract:

The purpose of the study was to clarify the species and biological characteristics of the pathogens of marigold wilt in Xinjiang Uygur Autonomous Region. A series of experiments were conducted through tissue isolation,single spore purification,pathogenicity determination,morphological Characteristics,phylogenetic analysis of ITS and EF-1α sequences and identification of biological characteristics. The results showed that four pathogens were identified as Fusarium fujikuroiF. solaniF. equiseti and F. culmorum. The optimum temperature for the growth of all Fusarium species was 25 ℃ and the optimum pH range was 6-7. Full-darkness was conducive to the mycelial growth of F. fujikuroi,but full-light was suitable for the rest species. They differed in their optimum growing conditions. The mycelial of F. fujikuroi grew better on media of PDA and PSA,and was in favor of lactose and potassium nitrate as the optimal carbon and nitrogen sources. For F. equiseti,the optimal medium was PDA,and the optimal carbon and niteogen sources were lactose and yeast extract. For F. solani,the best medium was Czapek medium,and the best carbon and nitrogen sources were lactose and peptone. For F. culmorum,the beneficial media were PSA,PDA and CA,and the beneficial carbon and nitrogen sources were soluble starch,yeast extract and ammonium chloride. Their mycelial lethal temperature were at 64 ℃,63 ℃,63 ℃,52 ℃ for 10 min respectively. Among of them,F. solani is the most dominant pathogenic species causing marigold wilt in Xinjiang because of highest separation frequency of 68%.

Key words: Xinjiang, marigold wilt, Fusarium, identification, biological characteristics