Department of Plant, Soil and Microbial Sciences, 578 Wilson Road, Michigan State University, East Lansing, MI, USA.
Pest Manag Sci. 2018 May;74(5):1054-1063. doi: 10.1002/ps.4521. Epub 2017 Jan 30.
Glyphosate has been shown to affect the development of plant disease in several ways. Plants utilize phenolic and other shikimic acid pathway-derived compounds as part of their defense against pathogens, and glyphosate inhibits the biosynthesis of these compounds via its mode of action. Several studies have shown a correlation between enhanced disease and suppression of phenolic compound production after glyphosate. Glyphosate-resistant crop plants have also been studied for changes in resistance as a result of carrying the glyphosate resistance trait. The evidence indicates that neither the resistance trait nor application of glyphosate to glyphosate-resistant plants increases susceptibility to disease. The only exceptions to this are cases where glyphosate has been shown to reduce rust diseases on glyphosate-resistant crops, supporting a fungicidal role for this chemical. Finally, glyphosate treatment of weeds or volunteer crops can cause a temporary increase in soil-borne pathogens that may result in disease development if crops are planted too soon after glyphosate application. © 2017 Society of Chemical Industry.
草甘膦已被证明可以通过多种方式影响植物病害的发展。植物利用酚类和其他莽草酸途径衍生的化合物作为其抵御病原体的防御机制的一部分，而草甘膦通过其作用模式抑制这些化合物的生物合成。几项研究表明，在草甘膦之后，增强的病害与酚类化合物产生的抑制之间存在相关性。还研究了抗草甘膦作物植物由于携带草甘膦抗性性状而导致的抗性变化。有证据表明，抗性性状本身以及将草甘膦施用于抗草甘膦植物都不会增加对疾病的易感性。唯一的例外是草甘膦已被证明可减少抗草甘膦作物上的锈病，这支持了该化学物质的杀菌作用。最后，杂草或自生作物的草甘膦处理会导致土壤传播病原体的暂时增加，如果在草甘膦施用后不久种植作物，可能会导致疾病发展。 © 2017 化学工业协会。
