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草业学报 ›› 2025, Vol. 34 ›› Issue (11): 98-113.DOI: 10.11686/cyxb2025052

• 研究论文 • 上一篇    下一篇

藜麦种子可培养内生真菌鉴定及分析

秦楠1,2(), 曹瑞鹏1, 高婧涵1, 彭玉飞1, 田淼1, 吕红1,2, 任璐1,2, 殷辉1,2(), 赵晓军1,2()   

  1. 1.山西农业大学植物保护学院,山西 太原 030031
    2.农业有害生物综合治理山西省重点实验室,山西 太原 030031
  • 收稿日期:2025-02-25 修回日期:2025-04-15 出版日期:2025-11-20 发布日期:2025-10-09
  • 通讯作者: 殷辉,赵晓军
  • 作者简介:yinhui0806@163.com
    E-mail: zhaoxiaojun0218@163.com
    秦楠(1987-),男,山西长治人,助理研究员,硕士。E-mail: 372909027@qq.com
  • 基金资助:
    山西农业大学“科技创新提升工程”项目(CXGC2023009);山西省重点研发计划(2022ZDYF117);山西省现代农业产业技术体系建设专项(2025CYJSTX03-31);“特”“优”农业高质量发展科技支撑工程项目(TYGC25-01);“特”“优”农业高质量发展科技支撑工程项目(TYGC25-02)

Identification and analysis of culturable endophytic fungi from quinoa seeds

Nan QIN1,2(), Rui-peng CAO1, Jing-han GAO1, Yu-fei PENG1, Miao TIAN1, Hong LYU1,2, Lu REN1,2, Hui YIN1,2(), Xiao-jun ZHAO1,2()   

  1. 1.College of Plant Protection,Shanxi Agricultural University,Taiyuan 030031,China
    2.Shanxi Key Laboratory of Integrated Pest Management in Agriculture,Taiyuan 030031,China
  • Received:2025-02-25 Revised:2025-04-15 Online:2025-11-20 Published:2025-10-09
  • Contact: Hui YIN,Xiao-jun ZHAO

摘要:

藜麦作为一种新引入我国的作物,因其超高的营养价值而备受瞩目。为明确藜麦种子内生真菌的种群结构和功能特性,对4个品种藜麦种子可培养内生真菌进行分离培养,综合形态学和系统发育分析对其进行了鉴定,并对其致病性和抑菌作用进行了探究。结果表明,4种藜麦种子中分离到6属9种可培养内生真菌,包含链格孢、黄曲霉、聚多曲霉、布氏镰孢、棒状镰孢、甜菜新凸轮孢、藜新凸轮孢、草酸青霉和斯托尔篮状菌。链格孢是4个品种都包含的内生菌,分离频率最高,为64.42%,其次为黄曲霉和草酸青霉,分离频率依次为11.66%、9.20%。9种可培养内生真菌中,5种可侵染藜麦叶片,为布氏镰孢、棒状镰孢、链格孢、藜新凸轮孢和甜菜新凸轮孢;2种对藜麦病原(灰葡萄孢、茎生壳二胞菌、柑橘镰孢、链格孢、粉红单端孢)有抑制作用,为草酸青霉和斯托尔篮状菌。藜麦种子可培养内生真菌种群结构丰富,在植物病害生物防治方面具有重要的应用潜力。

关键词: 藜麦, 可培养内生真菌, 种群, 系统发育

Abstract:

Quinoa (Chenopodium quinoa) is a newly introduced crop in China, and it is attracting much interest because of its high nutritional value. In this study, we aimed to clarify the population structure and functional characteristics of endophytic fungi in quinoa seeds. Culturable endophytic fungi were isolated from seeds of four varieties of quinoa. The fungi were cultured, identified on the basis of morphological and phylogenetic analyses, and their pathogenicity and antifungal effects were explored. In total, nine culturable endophytes were isolated from the quinoa seeds. They comprised nine species of six genera, namely, Alternaria alternataAspergillus flavusAspergillus sydowiiFusarium boothiiFusarium clavumNeocamarosporium betaeNeocamarosporium chenopodiiPenicillium oxalicum, and Talaromyces stollii. A. alternata was present in seeds of all four varieties, and had the highest isolation frequency (64.42%). The fungi with the next highest isolation frequencies were A. flavus and P. oxalicum (11.66% and 9.20%, respectively). Among the nine culturable endophytic fungi, five (F. boothiiF. clavumA. alternataN. chenopodii, and N. betae) were able to infect quinoa leaves, and two (P. oxalicum and T. stollii) showed inhibitory effects against quinoa pathogens (BotrytiscinereaAscochytacaulinaFusariumcitriA. alternataTrichotheciumroseum). The culturable endophytic fungi in quinoa seeds showed a rich population structure and have potential applications in the biological control of plant diseases.

Key words: quinoa, culturable endophytic fungi, population, phylogeny