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首页> 外文期刊>European Journal of Plant Pathology >Efficacy of the biocontrol agent Trichoderma harzianum ITEM 3636 against peanut smut, an emergent disease caused by Thecaphora frezii
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Efficacy of the biocontrol agent Trichoderma harzianum ITEM 3636 against peanut smut, an emergent disease caused by Thecaphora frezii

机译：生物防治ricrochoderma harzianum项目3636对花生粉的疗效，由thophora frezii引起的紧急疾病

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摘要

In this work, a bioformulation containing Trichoderma harzianum strain ITEM 3636, an effective biocontrol agent against the peanut pathogen Fusarium solani, was evaluated for control of peanut smut, an emergent disease caused by Thecaphora frezii. The performance of the bioformulation was evaluated during seasons 2014/2015 and 2015/2016 in experimental fields with history of peanut smut. Inoculation with T. harzianum ITEM 3636 significantly reduced the severity of peanut smut during both seasons by 17% and 25%, respectively. This is the first report where a consistent decrease of peanut smut symptoms is achieved in field experiments using a potential biological control agent. The identity of the causal agent of peanut smut was confirmed by sequencing the D1/D2 DNA region. T. harzianum ITEM 3636 caused significant increases in grain weight/plant in both years. Peanut smut and brown root rot are diseases that cause severe economic losses. Both causal agents may be present in the soil and, depending on environmental factors, cause disease. The T. harzianun ITEM 3636 bioformulation has high potential for controlling both diseases. Thus, the application of a single bioformulation could protect the health of peanut plants against two high impact pathogens.
机译：在这项工作中，评价含有Trichoderma Harzianum菌株项3636的生物传染病，这是一种有效的生物防治镰刀菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌菌，以控制花生粉末，这是由Thophora Frezii引起的出苗疾病。在季节2014/2015和2015/2016中评估了生物侵蚀的性能，在具有花生历史的实验领域。与T. harzianum项目3636接种显着降低了在两个季节的花生粉末的严重程度分别为17％和25％。这是第一份报告，使用潜在的生物控制剂在现场实验中实现了花生片段症状的一致减少。通过测序D1 / D2 DNA区域确认花生片段的因果剂的同一性。 T. Harzianum项目3636在两年内引起谷物重量/植物的显着增加。花生粉碎和棕色根腐烂是造成严重经济损失的疾病。两种因果剂可能存在于土壤中，具体取决于环境因素，导致疾病。 T. Harzianun项目3636生物造型具有控制疾病的高潜力。因此，单一生物传输的应用可以保护花生植物的健康免受两种高冲击病原体。

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