中国森林病虫2025，Vol.44Issue(2)：12-20,9.DOI:10.19688/j.cnki.issn1671-0886.20250004
螺旋木霉JSAFC2090对薄壳山核桃病害的生防潜力
Biocontrol potential of Trichoderma spirale JSAFC 2090 against pecan diseases
摘要
Abstract
Trichoderma strain JSAFC 2090 was separated from roots of healthy pecan trees by tissue isolation and identified as Trichoderma spirale through morphological and molecular biological methods.The biocontrol effects of T.spirale JSAFC 2090 against black spot disease and pecan anthracnose were determined using the plate confrontation and pot experiments.Changes of pecan inter-root soil microbial communities and enzyme activeties in pecan leaves after root irrigation treatment with spore suspension of strain JSAC2090 were analysed.The results showed that T.spirale JSAFC 2090 had significant inhibition effects on Choanephora cucurbitarum,pathogen of black spot disease,and Colletotrichum gloeosporioides,pathogen of anthracnose in pecan.The lesion sizes on pecan leaves were significantly reduced,and the incidence rates of diseases were significantly decreased.The strain could improve soil microbial communities and significantly enhance activity of phenylalanine ammonia lyase and reactive oxygen levels in pecan,enhancing the disease resistance.This results provided a theoretical basis for the development of T.spirale biocontrol agents.关键词
螺旋木霉/薄壳山核桃/生物防治/诱导抗性/微生物群落Key words
Trichoderma spirale/Carya illinoinensis/biocontrol/induced resistance/microbial community分类
林学引用本文复制引用
郑香容,黄晓潇,蒋将雷,陈圆圆,陈佳佳..螺旋木霉JSAFC2090对薄壳山核桃病害的生防潜力[J].中国森林病虫,2025,44(2):12-20,9.基金项目
江苏农林职业技术学院科技计划项目"经济林木病原真菌鉴定与生物防治研究(2024rc55)、"薄壳山核桃叶斑病病原鉴定及防治研究"(2023kj25)、"景观植物的化感研究及其在植物配置中的应用潜力——以江苏句容市为例"(2020kj004) （2024rc55）
江苏省高校自然科学研究面上项目"江苏省薄壳山核桃真菌病害病原鉴定及生物防治研究"(20KJB220003) （20KJB220003）
镇江市创新能力建设计划"镇江市林草资源挖掘与生物灾害绿色防控重点实验室"(SS2024010) （SS2024010）
