云南昆明地区南瓜白粉病病原菌生理小种鉴定
Identification of physiological race of pumpkin powdery mildew in Kunming region
为明确云南省昆明市团结乡地区南瓜白粉病病原菌种类及生理小种,通过病原菌孢子形态观察、分子鉴定及国际通用的甜瓜白粉病生理小种鉴别寄主与标准鉴定体系,对该地区的南瓜白粉病病原菌及生理小种进行鉴定。结果表明,该白粉病菌孢子形态呈椭圆形,内有纤维状体;rDNA-ITS序列与单囊壳属(Podosphaera xanthii) ITS序列聚为一类,一致性高达99%;病原菌样本对鉴别寄主的抗感反应与单囊壳白粉菌生理小种2France表现一致。因此,引起昆明市团结乡地区南瓜白粉病的病原菌为单囊壳属白粉病菌(P. xanthii)的生理小种2France。
In order to identify the species and physiological race of powdery mildew in Tuanjie region, Kunming, Yunnan province, the pathogen and physiological race of pumpkin powdery mildew in Tuanjie region were identified through the observation of pathogen spore morphology, molecular identification of ITS sequence, international common physiological races identification hosts of melon powdery mildew and its standard identification system. The results showed that the spores were oval in shape with fibrous bodies. The rDNA-ITS sequence was grouped with the ITS sequence of Podosphaera Xanthii, and the similairities was up to 99%. The resistance and susceptible response of the pathogen samples to the identification of the host was consistent with that of the physiological race 2France. Therefore, the pathogen causing powdery mildew of pumpkin in Tuanjie region of Kunming city was identified as race 2France of P. Xanthii.
| [1] |
|
| [2] |
刘秀波, 张俊华, 崔崇士. 南瓜白粉病病原菌鉴定及抗性鉴定方法研究[J]. 中国瓜菜, 2006, 19(1): 10-13. |
| [3] |
颜惠霞. 南瓜白粉病品种抗病性及抗病机理研究[D]. 兰州: 甘肃农业大学, 2009. |
| [4] |
梁巧兰, 徐秉良, 颜惠霞, |
| [5] |
王强. 甜瓜抗白粉病基因的SSR标记及生理小种鉴定研究[D]. 兰州: 甘肃农业大学, 2009. |
| [6] |
刘东顺, 程鸿, 孔维萍, |
| [7] |
肖仲久, 李小霞, 李斌. 贵州省南瓜白粉病病原菌初步鉴定[J]. 北方园艺, 2012(9): 146-148. |
| [8] |
刘文君, 王日升, 黄凤婵, |
| [9] |
张怡, 徐克东, 陈佩佩, |
| [10] |
王娟, 宫国义, 郭绍贵, |
| [11] |
屈淑平, 綦聪, 王云莉, |
| [12] |
马鸿艳, 魏尊苗, 祖元刚, |
| [13] |
咸丰, 张勇, 马建祥, |
| [14] |
李书颉, 王萍, 杨永升, |
| [15] |
夏伟伟, 邓竹根, 戴祖云, |
| [16] |
严佳丽, 楚箫, 黎豪, |
| [17] |
张莉, 张慧君, 张建农, |
| [18] |
|
| [19] |
包海清, 许勇, 杜永臣, |
云南省科学技术厅高原特色农业领域科技计划项目(202302AE090006)
云南省南瓜种子种业联合实验室项目(202205AR070001)
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