文献类型： 外文期刊
第一作者： Shi, Yaqian
作者： Shi, Yaqian;Shen, Yaru;Bai, Jinhui;Chen, Qingxi;Wen, Zhifeng;Ahmad, Bilal;Rahman, Mati Ur
作者机构：
关键词： Strawberry; Anthracnose; Resistance; Colletotrichum gloeosporioides; ROS
期刊名称：TROPICAL PLANT PATHOLOGY （ 影响因子：1.5； 五年影响因子：2.1 ）
ISSN： 1983-2052
年卷期： 2024 年 49 卷 6 期
页码：
收录情况： SCI
摘要： Anthracnose, caused by Colletotrichum spp. is one of the most devastating disease of strawberry. Identification of strawberry resistance to anthracnose has been a priority in strawberry breeding programs. Here, a total of 34 strawberry genotypes were evaluated for resistance to Colletotrichum gloeosporioides using detached leaf assay. Following C. gloeosporioides inoculation, the activities of defense enzymes such as catalase (CAT), peroxidase (POD), superoxide dismutase (SOD), superoxide anion (center dot O-2(-)) accumulation, and expression of pathogenesis-related 1 (PR1) and plant defending 1.2 (PDF 1.2) genes were examined. Two genotypes were resistant (R), seven moderately resistant (MR), thirteen susceptible (S), and twelve highly susceptible (HS). Fragaria nilgerrensis Schlech. and F. mandschurica were resistant to C. gloeosporioides, while F. vesca 'Hawaii 4' and Fragaria x ananassa cv 'Miaoxiang No. 3' were highly sensitive to the pathogen. Furthermore, the leaves of F. nilgerrensis, displayed more center dot O-2(-) production and cell death than 'Miaoxiang No. 3' following pathogen inoculation. The activities of defense enzymes such as CAT, POD, and SOD in F. nilgerrensis and F. mandschurica were higher than in "Hawaii 4" and 'Miaoxiang No. 3'. Following inoculation, PR1, PR5, PDF1.2, and coronatine insensitive 1 gene showed high expression levels in F. nilgerrensis, F. mandschurica, 'Hawaii 4', and 'Miaoxiang No. 3'. This work provides insights into the response of different strawberry genotypes to C. gloeosporioides infection in and will help breeders in selecting strawberry germplasm for disease-resistant breeding programs.
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