Engelberth Jurgen, Engelberth Marie
Department of Biology, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.
Plants (Basel). 2020 Feb 6;9(2):213. doi: 10.3390/plants9020213.
Green leaf volatiles (GLVs) are commonly released by plants upon damage, thereby providing volatile signals for other plants to prepare against the major causes of damage, herbivory, pathogen infection, and cold stress. However, while the biosynthesis of these compounds is generally well understood, little is known about the qualities and quantities that are released by different plant species, nor is it known if release patterns can be associated with different clades of plants. Here, we provide a first study describing the damage-induced release of major GLVs by more than 50 plant species. We found major differences in the quantity and quality of those compounds between different plant species ranging from undetectable levels to almost 100 µg per gram fresh weight. We also found major shifts in the composition that correlate directly to the quantity of emitted GLV. However, we did not find any major patterns that would associate specific GLV release with distinct clades of plants.
绿叶挥发物（GLVs）通常在植物受到损伤时释放，从而为其他植物提供挥发性信号，使其针对主要损伤原因（食草动物、病原体感染和冷胁迫）做好准备。然而，虽然这些化合物的生物合成总体上已被充分了解，但对于不同植物物种释放的绿叶挥发物的性质和数量知之甚少，而且也不清楚释放模式是否与不同的植物类群相关。在这里，我们首次开展研究，描述了50多种植物在损伤诱导下主要绿叶挥发物的释放情况。我们发现，不同植物物种释放的这些化合物在数量和质量上存在重大差异，范围从检测不到的水平到每克鲜重近100微克。我们还发现，其成分有重大变化，且与释放的绿叶挥发物数量直接相关。然而，我们没有发现任何将特定绿叶挥发物释放与不同植物类群联系起来的主要模式。
