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Plants emit informative airborne sounds under stress

I. Khait, View ORCID ProfileO. Lewin-Epstein, R. Sharon, K. Saban, R. Perelman, A. Boonman, Y. Yovel, L. Hadany
doi: https://doi.org/10.1101/507590
I. Khait
School of Plant Sciences and Food Security, Tel-Aviv University, Tel-Aviv, Israel
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O. Lewin-Epstein
School of Plant Sciences and Food Security, Tel-Aviv University, Tel-Aviv, Israel
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  • ORCID record for O. Lewin-Epstein
R. Sharon
School of Mathematical Sciences, Tel-Aviv University, Tel-Aviv, IsraelSchool of Plant Sciences and Food Security, Tel-Aviv University, Tel-Aviv, Israel
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K. Saban
School of Plant Sciences and Food Security, Tel-Aviv University, Tel-Aviv, Israel
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R. Perelman
School of Plant Sciences and Food Security, Tel-Aviv University, Tel-Aviv, Israel
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A. Boonman
School of Zoology, Tel-Aviv University, Tel-Aviv, Israel
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Y. Yovel
School of Zoology, Tel-Aviv University, Tel-Aviv, Israel
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L. Hadany
School of Plant Sciences and Food Security, Tel-Aviv University, Tel-Aviv, Israel
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  • For correspondence: Lilach.hadany@gmail.com
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Abstract

Stressed plants show altered phenotypes, including changes in color, smell, and shape. Yet, the possibility that plants emit airborne sounds when stressed – similarly to many animals – has not been investigated. Here we show, to our knowledge for the first time, that stressed plants emit airborne sounds that can be recorded remotely, both in acoustic chambers and in greenhouses. We recorded ∼65 dBSPL ultrasonic sounds 10 cm from tomato and tobacco plants, implying that these sounds could be detected by some organisms from up to several meters away. We developed machine learning models that were capable of distinguishing between plant sounds and general noises, and identifying the condition of the plants – dry, cut, or intact – based solely on the emitted sounds. Our results suggest that animals, humans, and possibly even other plants, could use sounds emitted by a plant to gain information about the plant’s condition. More investigation on plant bioacoustics in general and on sound emission in plants in particular may open new avenues for understanding plants and their interactions with the environment, and it may also have a significant impact on agriculture.

Footnotes

  • This revised version of the manuscript includes new results of short and long term recordings of tomato plants in a greenhouse.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted December 02, 2019.
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Plants emit informative airborne sounds under stress
I. Khait, O. Lewin-Epstein, R. Sharon, K. Saban, R. Perelman, A. Boonman, Y. Yovel, L. Hadany
bioRxiv 507590; doi: https://doi.org/10.1101/507590
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Plants emit informative airborne sounds under stress
I. Khait, O. Lewin-Epstein, R. Sharon, K. Saban, R. Perelman, A. Boonman, Y. Yovel, L. Hadany
bioRxiv 507590; doi: https://doi.org/10.1101/507590

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