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| Identification of eight Berberis species from the Yunnan-Guizhou plateau as aecial hosts for Puccinia striiformis f. sp. tritici, the wheat stripe rust pathogen |
LI Si-nan1*, CHEN Wen1, 2*, MA Xin-yao1, TIAN Xia-xia1, LIU Yao1, HUANG Li-li1, KANG Zhen-sheng1, ZHAO Jie1 |
1 State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling 712100, P.R.China
2 Guizhou Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang 550006, P.R.China |
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摘要
条形柄锈菌小麦专化型侵染小麦引起条锈病。小麦条锈菌是转主寄生菌，以小麦作为主要寄主完成夏孢子与冬孢子阶段，以小檗作为主要转主寄主完成性孢子与锈孢子阶段。目前，研究报道40余种小檗可作为小麦条锈菌的转主寄，其中大多数是中国小檗种类。然而，有关西南地区云贵高原小檗种类和地理分布知之甚少。云贵高原是中国小麦条锈菌进化相对独立的重要流行区，小麦条锈病在该地区可完成周年循环。本研究中，本文作者对云贵地区的小檗进行了调查，并通过人工接种鉴定了8种小檗可作为小麦条锈菌转主寄主，包括豪猪刺、永思小檗、巴东小檗、金花小檗、古宗金花小檗、滇西北小檗、鳞叶小檗、粉叶小檗,这是首次报道这些小檗种类可作为小麦条锈菌转主寄主。
Abstract Puccinia striiformis Westend. f. sp. tritici Erikss. (Pst) infects wheat and causes stripe rust. The rust is heteroecious with wheat as the primary uredinial and telial host and barberry (Berberis spp.) as the alternate pycnial and aecial host. More than 40 Berberis species have been identified as alternate hosts for Pst, and most of these are Chinese Berberis species. However, little is known about Berberis species or their geographic distributions in the Yunnan-Guizhou plateau in southwestern China. The Yunnan-Guizhou plateau is considered to be an important and relatively independent region for the evolution of the wheat stripe rust pathogen in China because the entire disease cycle can be completed within the region. In this study, we conducted a survey of barberry plants in the Yunnan-Guizhou plateau and identified the eight Pst-susceptible Berberis species under controlled conditions, including B. julianae, B. tsienii, B. veitchii, B. wilsonae, B. wilsonae var. guhtzunica, B. franchetiana, B. lepidifolia and B. pruinosa. These species are reported here for the first time to serve as alternate hosts for the wheat stripe rust pathogen under controlled conditions.
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Received: 28 February 2020
Accepted:
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| Fund: This work was supported by the National Key R&D Program of China (2018YFD0200500), the National Natural Science Foundation of China (31960524, 31071641 and 32072358), the Fundamental Research Funds for the Central Universities (2452019046), and the Natural Science Basic Research Plan in Shaanxi Province of China (2020JZ-15, 2017JM3006). |
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Corresponding Authors:
Correspondence ZHAO Jie, E-mail: jiezhao@nwsuaf.edu.cn; KANG Zhen-sheng, E-mail: kangzs@nwsuaf.edu.cn
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| About author: LI Si-nan, E-mail: 1026480918@qq.com; CHEN Wen, E-mail: 1319871239@qq.com;* These authors contributed equally to this study. |
Cite this article:
LI Si-nan, CHEN Wen, MA Xin-yao, TIAN Xia-xia, LIU Yao, HUANG Li-li, KANG Zhen-sheng, ZHAO Jie.
2021.
Identification of eight Berberis species from the Yunnan-Guizhou plateau as aecial hosts for Puccinia striiformis f. sp. tritici, the wheat stripe rust pathogen. Journal of Integrative Agriculture, 20(6): 1563-1569.
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