Mycorrhiza induced resistance in potato plantlets challenged by Phytophthora infestans
Mycorrhiza induced resistance in potato plantlets challenged by Phytophthora infestans
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DOI：
10.1016/j.pmpp.2011.06.005
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发表时间：
2011-06-01
影响因子：
2.7
通讯作者：
Declerck, Stephane
中科院分区：
文献类型：
--
作者：
Gallou, Adrien;Lucero Mosquera, Hernan Patricio;Declerck, Stephane
通过丛枝菌根（AM）真菌对土传病原体的生物控制已被反复证明。然而，它们在控制地上半生物营养型病原体方面的作用还不太确定。在这里，我们在体外研究了AM真菌对马铃薯植株中致病疫霉的影响。接种菌根的马铃薯植株叶片感染指数降低。实时荧光定量PCR检测结果表明，侵染后不久，两个致病相关基因（PR 1和PR 2）在菌根植物叶片中被诱导表达。这些结果表明，菌根植物的系统抗性，与马铃薯中的两个PR基因的引发有关。(C)2011爱思唯尔有限公司保留所有权利。
Biological control of soil-borne pathogens by arbuscular mycorrhizal (AM) fungi has been repeatedly demonstrated. However, their role in the control of above-ground hemibiotrophic pathogens is less conclusive. Here, we investigated in vitro the impact of an AM fungus on Phytophthora infestans in potato plants. The leaf infection index was decreased in mycorrhizal potato plants. Real-Time Quantitative PCR revealed the induction of two pathogenesis related genes (PR1 and PR2) in the leaves of mycorrhizal plants shortly after infection with P. infestans. These results suggested a systemic resistance in mycorrhizal plants, related to the priming of the two PR genes in potato. (C) 2011 Elsevier Ltd. All rights reserved.