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首页> 外文期刊>African Journal of Biotechnology >Effect of endophytic Fusarium oxysporum on paralysis and mortality of Pratylenchus goodeyi
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Effect of endophytic Fusarium oxysporum on paralysis and mortality of Pratylenchus goodeyi

机译：内生尖孢镰刀菌对good草瘫痪和死亡率的影响

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摘要

Three bioassays were conducted to investigate the antagonistic effect of secondary metabolites produced by 5 endophytic?Fusarium?oxysporum?isolates from banana (Musa?spp.) plants in Kenya, against?Pratylenchus goodeyi.??Percentage paralyses were recorded 3, 6 and 24 h after exposure to culture filtrates. Percentage mortality was evaluated after 48 h. All isolates caused significantly higher percentage paralysis (17.5 - 25.9%) and percentage mortality (62.3 - 72.8%) of?P. goodeyimotile stages compared to the control (8.4 - 10.9% and 17.3 - 34.6%, respectively). Percentage paralysis of motile stages of?P. goodeyi?decreased as the length of time exposure to culture filtrates increased, while mortality increased as length of nematodes exposure to culture filtrates increased. Kenyan isolates performed equally as good as the Ugandan isolate (V5W2) in causing paralysis and mortality. Results from this study demonstrated that endophytic?F. oxysporum?antagonizesP. goodeyi?through production of secondary metabolites.
机译：进行了3次生物测定，以研究肯尼亚香蕉（Musa？spp。）植物的5种内生性F镰孢氧合孢子菌分离物产生的次生代谢产物对古猿的拮抗作用。记录了3、6和24的麻痹率接触培养滤液后h。 48小时后评估死亡率百分比。所有分离株均导致更高的麻痹率（17.5-25.9％）和死亡率（62.3-72.8％）。与对照相比，运动能力好（分别为8.4-10.9％和17.3-34.6％）。运动的阶段性麻痹百分比。随着暴露于培养物滤液的时间长度的增加，古德伊减少，而随着线虫暴露于培养物滤液的时间长度的增加，死亡率也增加。肯尼亚分离株在造成瘫痪和死亡方面的表现与乌干达分离株（V5W2）相同。这项研究的结果表明内生性F。羟孢菌拮抗P。通过产生次生代谢产物而产生的好处。

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