Climate Suitability for Magnaporthe oryzae Triticum Pathotype in the United States
Climate Suitability for Magnaporthe oryzae Triticum Pathotype in the United States
复制标题
DOI：
10.1094/pdis-09-15-1006-re
复制
发表时间：
2016-10-01
期刊：
影响因子：
4.5
通讯作者：
Stack, James P.
中科院分区：
文献类型：
--
作者：
Cruz, Christian D.;Magarey, Roger D.;Stack, James P.
小麦稻瘟病是一种新出现的小麦病害，由小麦致病型稻瘟病菌Magnaporthe pathotype引起，在许多国家被认为是小麦生产的限制性因素。鉴于小麦稻瘟病作为一种后果严重的植物病害的重要性，基于天气的感染模型被用来估计M。在美国的小麦建立和小麦稻瘟病爆发。这些模型确定了某些地区的重大疾病风险。在所使用的阈值水平下，模型预测气候足以维持M。米小麦种群分布在美国40%的冬小麦产区。该国只有25%的地区达到了疾病暴发的临界水平。在路易斯安那州、密西西比州和佛罗里达州，适合爆发的年份的概率大于70%。本研究中生成的模型应该为未来更先进的模型提供基础，报告的结果可以用于优先考虑有关M.小麦与小麦稻瘟病的流行。
Wheat blast, caused by the Triticum pathotype of Magnaporthe oryzae, is an emerging disease considered to be a limiting factor to wheat production in various countries. Given the importance of wheat blast as a high-consequence plant disease, weather-based infection models were used to estimate the probabilities of M. oryzae Triticum establishment and wheat blast outbreaks in the United States. The models identified significant disease risk in some areas. With the threshold levels used, the models predicted that the climate was adequate for maintaining M. oryzae Triticum populations in 40% of winter wheat production areas of the United States. Disease outbreak threshold levels were only reached in 25% of the country. In Louisiana, Mississippi, and Florida, the probability of years suitable for outbreaks was greater than 70%. The models generated in this study should provide the foundation for more advanced models in the future, and the results reported could be used to prioritize research efforts regarding the biology of M. oryzae Triticum and the epidemiology of the wheat blast disease.