以色列特拉维夫大学Lilach Hadany研究组发现，植物在压力下发出的声音通过空气传播并能提供信息。该项研究成果发表在2023年3月30日出版的《细胞》上。

研究人员表明，受压植物发出的空气中的声音可以从远处记录下来并进行分类。研究人员记录了番茄和烟草植物在声学室和温室中发出的超声波，同时监测了植物的生理参数。研究人员开发了机器学习模型，并成功地识别了植物的状况，包括脱水程度和损伤，这仅仅基于发出的声音。这些信息性的声音也可能被其他生物体检测到。这项工作为了解植物及其与环境的相互作用开辟了途径，并可能对农业产生重大影响。

据介绍，受压植物显示出改变的表型，包括颜色、气味和形状的变化。然而，由受压植物发出的空气中的声音以前还没有被调查过。

附：英文原文

Title: Sounds emitted by plants under stress are airborne and informative

Author: Itzhak Khait, Ohad Lewin-Epstein, Raz Sharon, Kfir Saban, Revital Goldstein, Yehuda Anikster, Yarden Zeron, Chen Agassy, Shaked Nizan, Gayl Sharabi, Ran Perelman, Arjan Boonman, Nir Sade, Yossi Yovel, Lilach Hadany

Issue&Volume: 2023/03/30

Abstract: Stressed plants show altered phenotypes, including changes in color, smell, and shape. Yet, airborne sounds emitted by stressed plants have not been investigated before. Here we show that stressed plants emit airborne sounds that can be recorded from a distance and classified. We recorded ultrasonic sounds emitted by tomato and tobacco plants inside an acoustic chamber, and in a greenhouse, while monitoring the plant’s physiological parameters. We developed machine learning models that succeeded in identifying the condition of the plants, including dehydration level and injury, based solely on the emitted sounds. These informative sounds may also be detectable by other organisms. This work opens avenues for understanding plants and their interactions with the environment and may have significant impact on agriculture.

DOI: 10.1016/j.cell.2023.03.009

Source: https://www.cell.com/cell/fulltext/S0092-8674(23)00262-3