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首页> 外文期刊>Trends in Plant Science >Plant defense in the absence of jasmonic acid
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Plant defense in the absence of jasmonic acid

机译：在没有茉莉酸的情况下的植物防御

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Abundant research suggests that jasmonic acid can regulate a plant's responses to wounding, insects and some pathogens. Following exposure to such stimuli, jasmonic acid concentrations are known to increase. Exogenous applications of jasmonic acid upregulate the expression of several defense-related genes. In addition, mutations in genes that are crucial for jasmonic acid biosynthesis or sensing cause reduced resistance to some biotic stresses. However, Annick Stintzi et al. [1] now provide evidence that this is not true for all jasmonic acid-related mutants, suggesting that jasmonic acid is not the only jasmonate family member with the capability to activate plant defenses in vivo. They showthat jasmonic acid has partially overlapping resistance functions with an upstream precursor-the cyclopentenone, 12-oxo-phytodienoic acid (OPDA) - and propose that other oxylipins could have similar effects.
机译：大量研究表明，茉莉酸可以调节植物对受伤，昆虫和某些病原体的反应。暴露于此类刺激后，茉莉酸浓度已知会增加。茉莉酸的外源应用上调了几种防御相关基因的表达。此外，对于茉莉酸生物合成或传感至关重要的基因突变会导致对某些生物胁迫的抵抗力降低。但是，Annick Stintzi等。 [1]现在提供证据表明，并非所有茉莉酸相关的突变体都是如此，这表明茉莉酸不是唯一具有激活体内植物防御能力的茉莉酸家族成员。他们表明，茉莉酸与上游前体环戊烯酮，12-氧代-植物二烯酸（OPDA）具有部分重叠的抗药性，并提出其他脂环素可能具有类似的作用。

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