GUO Hong-lian,WANG Xiao-feng,LU Yu-rong,et al.Study on the Infection Properties of Alternaia brassicicola Spores During Cauliflower Storage[J].Northern Horticulture,2012,36(05):166-168.
菜花贮藏期交链孢霉菌的侵染规律研究
- Title:
- Study on the Infection Properties of Alternaia brassicicola Spores During Cauliflower Storage
- 文章编号:
- 1001-0009(2012)05-0166-03
- Keywords:
- cauliflower; black spot disease; alternaria brassicicola; infection
- 分类号:
- S 635.3
- 文献标志码:
- A
- 摘要:
- 对贮藏期菜花黑斑病菌的侵染规律及最适侵染条件进行了初步研究，为菜花贮藏期该病害的防治提供理论依据。结果表明：温度为贮藏期黑斑交链孢霉菌的主要环境因子,其最低生长温度为4℃，在0℃环境下几乎无法存活。此外其最适侵染的pH为8；交链孢霉菌侵染过程中以分泌细胞壁降解酶破坏组织细胞完整性为主，病原菌在接种的第2天几丁质酶活性明显升高，在接种7 d以内，果胶酶活性先下降后持续升高，这种活性升高与菜花贮存6～7 d时的病斑扩展规律相符。
- Abstract:
- The black spot disease of caulifloduring storage were studied on its infection fungi and the optimum condition，in order to provide theoretical basis of control of the disease.The results showed that the temperature was key factor that the lowest growth temperature was 4℃，and almost could’t live in 0℃.The optimum infection pH value was 8；the pathogen infected cell walls in the process of degrading enzymes secreted damage tissue cells and the chitin-enzyme activity increased significantly in the vaccination within 2 days，pectin-enzyme activity increased in 6～7 days too，these enzyme-activity rising were consisted with the disease spot expansion.
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备注/Memo
第一作者简介：郭红莲(1971-)，女，博士，副教授，现主要从事农产品保鲜方面的教学与科研工作。E-mail：ghl0628@163.com。
收稿日期：2011-12-21