转拟南芥npr 1基因可使植物广泛增强疾病抗性，尤其是系统获得性抗性(SAR)，刺激未感染植物引发防御反应。

The Arabidopsis NPR1 gene controls the onset of systemic acquired resistance (SAR), a plant immunity that is often activated after a local infection.

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春天的温暖气温加速了所有的植物生长周期，包括未感染的作物和非作物植物，所以大部分地区的植被状况都低于平均水平。

Warm spring temperatures helped speed the growing cycle of all plants, including uninfected and non-crop plants, so vegetation conditions were below average across much of the region.

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