Department of Applied Biological Chemistry, Faculty of Agriculture, Kinki University, Nara, Japan.
Plant Signal Behav. 2012 Feb;7(2):222-6. doi: 10.4161/psb.18765. Epub 2012 Feb 1.
Plants emit volatile organic compounds (VOCs) as a means to warn other plants of impending danger. Nearby plants exposed to the induced VOCs prepare their own defense weapons in response. Accumulated data supports this assertion, yet much of the evidence has been obtained in laboratories under artificial conditions where, for example, a single VOC might be applied at a concentration that plants do not actually experience in nature. Experiments conducted outdoors suggest that communication occurs only within a limited distance from the damaged plants. Thus, the question remains as to whether VOCs work as a single component or a specific blend, and at which concentrations VOCs elicit insect and pathogen defenses in undamaged plants. We discuss these issues based on available literature and our recent work, and propose future directions in this field.
植物会排放挥发性有机化合物（VOCs），以此作为向其他植物发出即将面临危险的预警。附近接触到诱导 VOCs 的植物会相应地准备自己的防御武器。大量数据支持这一说法，但大部分证据是在实验室人工条件下获得的，例如，单一 VOC 可能以植物在自然界中实际不会遇到的浓度施加。在户外进行的实验表明，这种通讯仅在受损植物的有限距离内发生。因此，VOCs 是作为单一成分还是特定混合物起作用，以及在何种浓度下 VOCs 会引发未受损植物的昆虫和病原体防御，仍然是一个悬而未决的问题。我们基于现有文献和我们最近的工作讨论了这些问题，并提出了该领域的未来发展方向。
