Increased susceptibility of potato to Rhizoctonia diseases in Potato leafroll virus-infected plants
Increased susceptibility of potato to Rhizoctonia diseases in Potato leafroll virus-infected plants
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马铃薯卷叶病毒感染植物中马铃薯对丝核菌病害的易感性增加
DOI：
10.1007/s10327-017-0707-x
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发表时间：
2017
影响因子：
1.2
通讯作者：
Masuta Chikara
中科院分区：
文献类型：
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作者：
Ito Mai;Meguro-Maoka Ayano;Maoka Tetsuo;Akino Seishi;Masuta Chikara
在北海道马铃薯田，由马铃薯卷叶病毒（PLRV）引起的卷叶症状植株的块茎上覆盖的斑疹根瘤菌更为密集。这一观察结果使我们推测，感染了PLRV的马铃薯对茄枯病菌的易感性会增加。为了验证这一假设，在盆栽实验中，我们给plrv感染的母块茎接种了嗜绿质菌。结果，感染plrv的植株产生的块茎明显少于未感染病毒的植株，且块茎体积更小，这表明感染plrv的植株比未感染病毒的植株更容易感染toR。以上。因此，应该使用无病毒的块茎来减少根瘤菌病。
In Hokkaido potato fields, tubers produced from the plants with leaf curl symptoms caused by potato leaf roll virus (PLRV) were noted to be more densely covered withRhizoctoniasclerotia. This observation led us to hypothesize that potato infected with PLRV would have an increased susceptibility toRhizoctonia solani. To test this hypothesis, in a pot experiment, we inoculated PLRV-infected mother tubers withRhizoctonia. As a result, PLRV-infected plants produced significantly fewer and smaller tubers than virus-free plants did, suggesting that PLRV-infected plants are more susceptible than virus-free plants toR. solani. Virus-free seed tubers should thus be used to reduceRhizoctoniadiseases.