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首页> 外文期刊>Plant Disease >Activity of the Succinate Dehydrogenase Inhibitor Fungicide Penthiopyrad Against Sclerotinia sclerotiorum
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Activity of the Succinate Dehydrogenase Inhibitor Fungicide Penthiopyrad Against Sclerotinia sclerotiorum

机译：琥珀酸脱氢酶抑制剂杀菌剂杀菌剂对抗Sclerotinia sclerotiorum的活性

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摘要

In present study, the morphological and physiological characteristics of Sclerotinia sclerotiorum (Lib.) de Bary to a novel succinate dehydrogenase inhibitor (SDHI) fungicide penthiopyrad has been reported. The baseline sensitivity of S. sclerotiorum to penthiopyrad was determined using 119 strains by inhibition of mycelial growth. The median effective concentration (EC50) values for penthiopyrad ranged from 0.0096 to 0.2606 mu g/ml and the mean value was 0.0578 (+/- 0.0626) mu g/ml. After 1 mu g/ml penthiopyrad treatment, mycelia of S. sclerotiorum strains showed increased apical branching and were denser compared with control, and cell membrane permeability significantly increased. In addition, glycerol content, oxalic acid (OA), and exopolysaccharide (EPS) content decreased markedly and mycelial respiration was distinctly inhibited. The number and dry weight of sclerotia significantly decreased after being treated with 2 mu g/ml penthiopyrad. Penthiopyrad exhibited both protective and curative activity on the detached rapeseed leaves. Importantly, the above results will provide us more information on penthiopyrad for management of diseases caused by S. sclerotiorum and increase our understanding of action of penthiopyrad against S. sclerotiorum.
机译：据报道，在目前的研究中，据报道了Sclerotinia sclerotiorum（lib。）de r氨基酸酯的形态学和生理特征。通过抑制菌丝体生长，使用119株测定S.S.Sclerotiorum至Penthiopyrad的基线敏感性。五光孔的中值有效浓度（EC50）值范围为0.0096至0.2606μg/ ml，平均值为0.0578（+/- 0.0626）mu g / ml。在1μmg/ ml戊孔治疗后，S.Sclerotiorum菌株的菌丝体显示出均匀支化增加，与对照相比，致密，细胞膜渗透性显着增加。此外，甘油含量，草酸（OA）和潜水糖（EPS）含量明显降低，并且菌丝呼吸明显抑制。用2μg/ ml五光孔处理后，巩膜的数量和干重显着降低。 Penthiopyrad在脱离的油菜籽叶上表现出保护和疗效。重要的是，上述结果将为我们提供有关由S.Sclerotiorum造成的疾病管理的更多信息，并提高我们对Penthiopyrad对抗S. Sclerotiorum的作用的理解。

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