Plants produce ultrasonic clicks under stress
Plants produce ultrasonic clicks under stress

Plants produce ultrasonic clicks under stress

Plants produce ultrasonic clicks under stress

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Plants produce ultrasonic clicks under stress – A team of biologists from Tel-Aviv University of Israel discovered that stressed plants emit sounds, similarly in many animals, no ultrasonic clicks detectable by human ears were used, and they discovered that plant sounds contain information about the plant. physical condition.

Rotten tomato plants (Solanum lycopersicum) emit airborne and remotely identifiable sounds. Image credit: V. Wald

“The plants exhibited significant changes in their phenotype in response to stress. They differ visually with respect to the color and shape of the different plants, “said Lilach Haydani, a professor of plant science and food safety at the University of Tel-Aviv and her colleagues.

“They also emit volatile organic compounds, for example, when exposed to drought or vegetables.

These compounds can also affect neighboring plants, resulting in the growth of these plants.” “In general, it has been shown that plants produce visual, chemical and tactile signals to which other organisms may occasionally respond.

However, the ability of plants to emit air has not been adequately explored.” In the study, researchers determined to test whether plants produce informative sounds, which could serve as potential signals or signals for their environment.

They built a recording system, in which each plant was recorded simultaneously with two microphones inside a separate box.

They focused on the range of ultrasonic sound (20-150 kHz), where the background noise is weak.

The team recorded tomato plants (Solanum lycopersicum) and tobacco (Nicotiana tabacum) under different treatments: drought stress, stem truncation and control.

Spectrum of sounds emitted by stressed plants. Image credit: Khait et al, doi: 10.1101 / 507590.

The number of sounds emitted by plants stressed by drought was approximately 35 and 11 per hour for tomatoes and tobacco, respectively, and tomato and tobacco plants cut 25 and 15 sounds per hour, respectively.

In contrast, the number of sounds emitted by the plants of all control groups was less than one per hour.

“First we rely on our knowledge that stressed plants listen to sounds that blow in the air, which can also be recorded in acoustic chambers and greenhouses,” the scientists said. 

“We recorded 65 dBSPL (dB of sound pressure level). The ultrasonic sound of tomato and tobacco plants is 4 inches (10 cm), which means that these sounds are detected several feet (meters) away from some organisms. You can go. “

Professor Hadney and his co-authors also developed machine learning models that could distinguish between plant sounds and common noises, and the identification of plant conditions (dry, cut or intact) was based only on the sounds emitted.

“Our results suggest that animals, humans and possibly other plants can also use the sounds emitted by a plant to obtain information about the state of the plant,” he said.

“More research on bioactactics of plants in particular, and sound emissions in plants in particular, can open new avenues for understanding their interactions with plants and the environment, and can also have a significant impact on agriculture.”

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Plants produce ultrasonic clicks under stress
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“The plants exhibited significant changes in their phenotype in response to stress. They differ visually with respect to the color and shape of the different plants, “said Lilach Haydani, a professor of plant science and food safety at the University of Tel-Aviv and her colleagues.

“They also emit volatile organic compounds, for example, when exposed to drought or vegetables. These compounds can also affect neighboring plants, resulting in the growth of these plants.” “In general, it has been shown that plants produce visual, chemical and tactile signals to which other organisms may occasionally respond. However, the ability of plants to emit air has not been adequately explored.”

Plants produce ultrasonic clicks under stress: a team of biologists from the Tel-Aviv University of Israel discovered that stressed plants emit sounds, similarly in many animals, no ultrasonic clicks detectable by human ears were used, and they discovered that Plant sounds contain information about the plant. physical condition.

Rotten tomato plants (Solanum lycopersicum) emit sounds in the air and remotely identifiable. Image credit: V. Wald. In the study, researchers determined to test whether plants produce informative sounds, which could serve as potential signals or signals for their environment.

They built a recording system, in which each plant was recorded simultaneously with two microphones inside a separate box. They focused on the range of ultrasonic sound (20-150 kHz), where the background noise is weak. The team recorded tomato plants (Solanum lycopersicum) and tobacco (Nicotiana tabacum) under different treatments: drought stress, truncation and stem control.

Spectrum of sounds emitted by stressed plants. Image credit: Khait et al, doi: 10.1101 / 507590. The number of sounds emitted by plants stressed by drought was approximately 35 and 11 per hour for tomatoes and tobacco, respectively, and tomato and tobacco plants They cut 25 and 15 sounds per hour, respectively.

In contrast, the number of sounds emitted by the plants of all control groups was less than one per hour. “First we rely on our knowledge that stressed plants listen to the sounds that blow in the air, which can also be recorded in acoustic chambers and greenhouses,” the scientists said.

“We recorded 65 dBSPL (dB sound pressure level). The ultrasonic sound of tomato and tobacco plants is 4 inches (10 cm), which means that these sounds are detected several feet (meters) away from some organisms. You can leave. “

Professor Hadney and his co-authors also developed machine learning models that could distinguish between plant sounds and common noises, and the identification of plant conditions (dry, cut or intact) was based only on the sounds emitted.

“Our results suggest that animals, humans and possibly other plants can also use the sounds emitted by a plant to obtain information about the state of the plant,” he said.

“More research on bioactactics of plants in particular, and sound emissions in plants in particular, can open new avenues for understanding their interactions with plants and the environment, and can also have a significant impact on agriculture.”

Plants produce ultrasonic clicks under stress: a team of biologists from the Tel Aviv University of Israel discovered that stressed plants emit sounds, similarly in many animals, from any ultrasonic click detected by human ears. It was not used, and they discovered that plant sounds were revealed to the plant.

Physical condition. Rotten tomato plants (Solanum lycopersicum) emit air and are remotely recognizable.

Image credit: V. Wald In the study, researchers conducted tests to determine if plants produce informative sounds, which could serve as potential signals or signals for their environment. “The plants exhibited significant changes in their phenotype in response to stress.

They differ in relation to the color and size of different plants, “said Lilac Haydani, professor of botany and food safety at the University of Tel Aviv and colleagues,” They also emit volatile organic compounds, p. For the When exposed to dried or vegetables. These compounds can also affect neighboring plants, resulting in the growth of these plants. “” In general, it has been shown that plants produce visual, chemical and tactile signals to which other organisms may occasionally respond. However, the ability of plants to emit air has not been adequately explored. “They created a recording system, in which each plant was recorded simultaneously with two microphones inside a separate box.

They focused on the range of ultrasonic sound (20–150 kHz).), Where the background noise weakened. The team recorded tomato (Solanum lycopersicum) and tobacco (Nicotiana tabacum) plants under different treatments: drought stress, pruning and stem control Spectrum sounds of rostral plants Image credit: Khet et al., Doi: 10.11101 / 5090590.

The number of sounds of plants stressed by drought was approximately 35 and 11 per hour for tomatoes and tobacco, respectively, and Tomato and tobacco plants cut 25 and 15 sounds per hour, respectively, in contrast, the number of sounds emitted it was less than an hour through the plants of all the control groups. “First, we rely on our knowledge that thrust plants hear sounds flying in the air, which can also be recorded in ca acoustic maras and greenhouses, “the scientists said. “We have 65 dBSPL (dB of Sound Pressure Level) entered.

The ultrasonic sound of tomato and tobacco plants is 4 inches (10 cm), which means that these sounds are detected several feet (meters) away from some organisms. You can leave. ” Professor Hadney and his co-authors also developed machine learning models that could distinguish between plant sounds and normal noises, and identify plant conditions (dry, cut or intact) as only emitted sounds. It was based on. “Our results suggest that animals, humans and possibly other plants also use sounds emitted by a plant to obtain information about the position of the plant.

You can use it,” he said. “More research, especially in plant bioactactics, and especially emissions of sound in plants, it can open new avenues to understand their interactions with plants and the environment, and also in agriculture. It can have a significant impact. “

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