Canker and fine-root loss of Malus sieversii (Ldb.) Roem. caused by Phytophthora plurivora in Xinjiang Province in China

文献类型： 外文期刊

第一作者： Liu, Ai-Hua

作者： Liu, Ai-Hua;Wen, Jun-Bao;Liu, Ai-Hua;Shang, Jing;Zhang, Jing-Wen;Kong, Ting-Ting;Yue, Zhao-Yang;Shang, Jing

作者机构：

期刊名称：FOREST PATHOLOGY （ 影响因子：1.3； 五年影响因子：1.6 ）

ISSN： 1437-4781

年卷期： 2018 年 48 卷 6 期

页码：

收录情况： SCI

摘要： In recent years, the distribution and population of the Xinjiang wild apple, Malus sieversii, a protected vulnerable plant among endangered rare germplasm resources of China, have been decreasing. A field survey conducted during 2015-2017 detected decline and dieback of Xinjiang wild apple in the Yili region in Xinjiang Province. Two Phytophthora spp. were isolated from cankers and soil samples around symptomatic M. sieversii trees: One isolate was shown to cause infection, based on Koch's postulates. The isolate was identified as Phytophthora plurivora based on morphological features, physiological characteristics, ITS1-5.8S-ITS2 rDNA and cox1 sequence analyses. This is the first report of P. plurivora pathogenicity on Xinjiang wild apple in Xinjiang Province in China, constituting a new host for this pathogen. The potential of P. plurivora to cause damage in pure stands of Xinjiang wild apple in Xinjiang Province should be determined.

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