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    李智军,龙卫平,郑锦荣,雷建军. 广东辣椒疫霉菌分离鉴定及其致病力和生理小种分化研究[J]. 华南农业大学学报, 2007, 28(1): 50-54. DOI: 10.7671/j.issn.1001-411X.2007.01.012
    引用本文: 李智军,龙卫平,郑锦荣,雷建军. 广东辣椒疫霉菌分离鉴定及其致病力和生理小种分化研究[J]. 华南农业大学学报, 2007, 28(1): 50-54. DOI: 10.7671/j.issn.1001-411X.2007.01.012
    shu
    LI Zhi-jun,LONG Wei-ping,ZHENG Jin-rong,LEI Jian-jun. Isolation and Identification of Phytophthora capsici in Guangdong Province and Measurement of Their Pathogenicity and Physiological Race Differentiation[J]. Journal of South China Agricultural University, 2007, 28(1): 50-54. DOI: 10.7671/j.issn.1001-411X.2007.01.012
    Citation: LI Zhi-jun,LONG Wei-ping,ZHENG Jin-rong,LEI Jian-jun. Isolation and Identification of Phytophthora capsici in Guangdong Province and Measurement of Their Pathogenicity and Physiological Race Differentiation[J]. Journal of South China Agricultural University, 2007, 28(1): 50-54. DOI: 10.7671/j.issn.1001-411X.2007.01.012
    shu

    广东辣椒疫霉菌分离鉴定及其致病力和生理小种分化研究

    Isolation and Identification of Phytophthora capsici in Guangdong Province and Measurement of Their Pathogenicity and Physiological Race Differentiation

      摘要
    • 摘要: 分离鉴定了来源于广东省不同辣椒产区的5个病原菌分离物,经形态特征鉴定及回接发病特征观察,确定这些菌株均为辣椒疫霉菌Phytophthora capsici Leonian.广东5个菌株在CA培养基上诱导产生的孢子囊形态类似,孢子囊形状多为卵圆形或长椭圆形,乳突明显,孢子囊平均大小40.8～45.9 μm(l)×23.2～30.9 μm(b),l/b 1.4～1.8.菌株间菌丝生长速率、产孢能力及致病力有明显差异,经生理小种鉴别,4个为Race 3,1个为Race 1,初步推定Race 3为广东辣椒疫病病原菌的优势小种.

       

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