Sunday, January 26, 2020
Contact us    |    Advertise    |   Help    |   Cookie Policy    |   Privacy Policy    RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Plants 'scream' when stressed out, study finds


Posted on Sunday, 8 December, 2019 | Comment icon 12 comments

It seems that plants have a way of expressing their discomfort. Image Credit: sxc.hu
Scientists have discovered that plants emit ultrasonic 'squeals' when stressed due to drought or damage.
What sound does a plant make ? It's a question that might seem ridiculous, but now according to a new study, the idea that plants emit sound may not be that far-fetched after all.

Researchers at Israel's Tel Aviv University were recently able to record these ultrasonic 'squeals' by placing special microphones next to tomato and tobacco plants.

Remarkably, they reported picking up the sounds, which fell within the range of 20 to 100 kilohertz, up to 10cm away from the plant. It has also been speculated that some plants and animals may even be able to detect these sounds up to several meters away.

Scientists believe that these sounds are produced by the plant during times of stress, such as when there is a drought or when the plant has sustained physical damage.
Different causes of stress also seemed to cause the plants to produce sounds at differing rates.

The researchers found that computer software could even tell different plants apart from these sounds.

"Sounds that drought-stressed plants make could be used in precision agriculture if it is not too costly to set up the recording in a field situation," said biologist Anne Visscher.

Further research will be needed however to determine the feasibility of this concept.

Source: Live Science | Comments (12)

Tags: Plants

Recent comments on this story
Comment icon #3 Posted by stevewinn on 8 December, 2019, 17:54
im not surprised we've known for years our cousins the trees communicate to one another. thats why its sad to see solitary trees especially the old English oak trees who could be 400 to 1000+ years old and not spoken to another tree for hundreds of years. 
Comment icon #4 Posted by Piney on 8 December, 2019, 18:16
A actual recording in the human range is needed. That way we can blast it at vegans. 
Comment icon #5 Posted by Ozfactor on 8 December, 2019, 23:20
Yes I agree Steve, it is always sad to see solitary trees in paddocks, like a solitary dolphin in a tank .
Comment icon #6 Posted by Grandpoobah on 9 December, 2019, 0:03
Some of the comments, wow  People need to be a little more logical and exercise some critical thinking... Exactly what purpose would this human interpreted as a "scream" sound do if no one can naturally hear it. No type of life form (and that includes non sentient plant life) would evolve a trait that their supposed harmer would not hear, DUH! However all the sentient animals who are needlessly subjected to horrific violence for the completely needless consumption of their bodies do scream, and loudly too, but sadly their screams also are not heard... not by those who consume their remains any... [More]
Comment icon #7 Posted by Hawken on 9 December, 2019, 0:16
@Grandpoobah My guess is that you're a Vegan.
Comment icon #8 Posted by Wes83 on 9 December, 2019, 0:41
Wonder what they sound like happy, or bored. Or maybe all they know is oblivion and stress?
Comment icon #9 Posted by Ozfactor on 9 December, 2019, 1:25
The smell of cut grass is a chemical distress signal from the cut grass, we might not hear plants scream but we can smell their distress. 
Comment icon #10 Posted by Ozfactor on 9 December, 2019, 1:28
https://www.mentalfloss.com/article/30573/what-causes-fresh-cut-grass-smell Trauma, that’s what. It’s the smell of chemical defenses and first aid. The fresh, “green” scent of a just-mowed lawn is the lawn trying to save itself from the injury you just inflicted. Leafy plants release a number of volatile organic compounds called green leaf volatiles (GLVs). When the plants are injured, whether through animals grazing on them, you cutting or mowing them, or even just unintentionally rough handling, these emissions increase like crazy.
Comment icon #11 Posted by Hawken on 9 December, 2019, 11:23
I wonder if my apple tree thinks I'm kidnapping her babies when I pick them.
Comment icon #12 Posted by RabidMongoose on 9 December, 2019, 11:41
Oh my God, you mass murderer. You`re worse than Hitler!


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

6644335
277346
183467

 
Space Force logo looks like it's from Star Trek
1-25-2020
President Donald Trump has revealed the official logo for the US Space Force - and it looks somewhat familiar...
Man behind exotic US Navy patents speaks out
1-25-2020
The engineer responsible for various exotic 'UFO tech' patents has spoken to the media for the first time.
Astronauts create first ever food baked in space
1-24-2020
In a first-of-its-kind experiment, the astronauts aboard the ISS have baked a batch of chocolate chip cookies.
Doomsday Clock is now seconds from midnight
1-24-2020
According to the latest movement of the symbolic clock, the state of our world has gone from bad to worse.
Stories & Experiences
Dog and Jamaican statue
1-10-2020 | Canada
 
 
Life changing experience
12-19-2019 | Australia
 
Unexplained smoke or fog
12-19-2019 | West Texas, USA
 
He came in the night
12-19-2019 | CA
 
My reptilian encounter
11-24-2019 | Ireland and Australia
 
The day I found out I am immortal
11-24-2019 | Hialeah
 
Recent activity in my home
11-24-2019 | Kansas City, MO USA
 
The houndsman
10-26-2019 | Michigan, USA
 
Birthday balloon
10-26-2019 | Usa
 

         More stories | Send us your story
Featured Videos
Gallery icon 
Why do we believe in conspiracies ?
Posted 1-17-2020 | 5 comments
A look at how the human race has effectively evolved to accept conspiracy theories.
 
NASA 2020: Are you ready ?
Posted 1-1-2020 | 3 comments
A look at what's coming up in the world of spaceflight this year.
 
Is it possible to levitate a human ?
Posted 12-15-2019 | 2 comments
Science enthusiast Rick Edwards attempts to unlock the secret of levitation.
 
What is the biocentric universe theory ?
Posted 12-6-2019 | 38 comments
TheoryInk takes a look at the concepts behind the idea of a biocentric universe.
 
Interview with Sophia the robot
Posted 11-21-2019 | 18 comments
The popular robot recently made an appearance on 'This Morning' in the UK.
 
 View: More videos
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 Unexplained-Mysteries.com (c) 2001-2020
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ