Oil Crops Research Institute, Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agricultural and Rural Affairs, Wuhan 430062, China.
Viruses. 2024 May 27;16(6):854. doi: 10.3390/v16060854.
Peanut stem rot is a soil-borne disease caused by . It occurs widely and seriously affects the peanut yield in most peanut-producing areas. The mycoviruses that induce the hypovirulence of some plant pathogenic fungi are potential resources for the biological control of fungal diseases in plants. Thus far, few mycoviruses have been found in . In this study, two mitoviruses, namely, Agroathelia rolfsii mitovirus 1 (ArMV1) and Agroathelia rolfsii mitovirus 2 (ArMV2), were identified from the weakly virulent strain GP3-1, and they were also found in other isolates. High amounts of ArMV1 and ArMV2in the mycelium could reduce the virulence of strains. This is the first report on the existence of mitoviruses in . The results of this study may provide insights into the classification and evolution of mitoviruses in and enable the exploration of the use of mycoviruses as biocontrol agents for the control of peanut stem rot.
花生茎腐病是一种由 引起的土传病害。它广泛发生，严重影响了大多数花生产区的花生产量。诱导一些植物病原真菌弱毒的真菌病毒是植物真菌病害生物防治的潜在资源。迄今为止，在 中发现的真菌病毒很少。在这项研究中，从弱毒菌株 GP3-1 中鉴定出两种杆状病毒，即 Agroathelia rolfsii 杆状病毒 1（ArMV1）和 Agroathelia rolfsii 杆状病毒 2（ArMV2），它们也存在于其他 分离株中。菌丝中大量的 ArMV1 和 ArMV2 可降低 菌株的毒力。这是首次报道在 中存在杆状病毒。本研究结果可为 中杆状病毒的分类和进化提供依据，并为利用真菌病毒作为防治花生茎腐病的生物防治剂提供依据。
