Plants emit ultrasonic 'scream' when they are hurt, researchers find

antitox

Well-Known Member
https://www.yahoo.com/news/plants-e...they-are-hurt-researchers-find-190342671.html


Here’s a finding that might give vegans pause for thought: some plants emit an ‘ultrasonic’ scream when they’re stressed out.
Researchers placed microphones a few inches from tomato and tobacco plants, deprived them of water and cut their stems.
The plants emitted an ultrasonic signal between 20 and 100 kilohertz, the researchers found.
The Tel Aviv University scientists believe that the signals may communicate distress to other plants, LiveScience reported.

When a tomato plant’s stem is cut, it emits 25 ultrasonic distress sounds over the course of an hour, the researchers found.
Tomato plants made up to 35 distress signals an hour when deprived of water.
The researchers wrote: ‘‘These findings can alter the way we think about the plant kingdom, which has been considered to be almost silent until now.”
The paper has yet to be peer-reviewed.
Previous research has shown that even brushing against a plant can ‘stress it out’ - meaning it ‘warns’ nearby plants that something has happened, the researchers said.
The signals take the form of chemicals secreted by roots, which tell nearby plants they’ve been in contact with something.
Researchers believe the signals are ‘instructions’ on how to grow, based on whether nearby plants are relatives.
Led by Velemir Ninkovic from the Swedish University of Agricultural Sciences, the researchers stressed out corn seedlings by touching their leaves.
They then watched how nearby plants grew - and saw that they directed their resources into growing more leaves and fewer roots.
Lead author Dr Ninkovic said: “Our study demonstrated that changes induced by above ground mechanical contact between plants can affect below ground interactions, acting as cues in prediction of the future competitors.”
 

Endangered

Well-Known Member
Andy C...I dont know any verse that says no meat will be eaten. But the rules of life will change a lot and I dont believe animal sacrifice will be used as atonement. The verse that says the lamb will lie down with the lion suggests even animals will be vegan. This also suggests that we wont raise cows for meat but rather as pets and companions.
I guess I will have to retire my fly rod.
Burger King now has the The Impossible Burger which is all veggie and no meat. Maybe these will be all the rage in New Jerusalem.
Still if it was up to me I would still keep pigs around for sausage and bacon and pulled pork barbeque sandwiches.
 

mattfivefour

Administrator
Staff member
Meat comes from dead animals, birds, and fish. Since nothing will die anymore, there being no more death, we won't be eating meat. Nothing will, add the well be no more carnivores.

But, knowing God the little bit i know Him, i feel confident in saying that the fruits He will provide for us to eat will be the BEST food we have ever tasted. Ever! It'll be better by far than anything you have ever eaten. Guaranteed.
 

Lynn

Longing for Home
I know this is crazy, but I had to post it cause it leaves the vegans nothing to eat.
Sorry, antitox, I'm not buying it. During the week of creation, God created plants & trees that provided all kinds of edibles. Then, God saw what He had made & said "it is good." If the plants were in distress, He wouldn't have said they were good.
 

antitox

Well-Known Member
Sorry, antitox, I'm not buying it. During the week of creation, God created plants & trees that provided all kinds of edibles. Then, God saw what He had made & said "it is good." If the plants were in distress, He wouldn't have said they were good.
Not pushing this idea. I thought it was crazy and posted it based upon science being used in ways to lessen the importance of man versus the rest of creation. I am aware that Gen 1:30 states that everything that had the breath of life ate green plants for food. :)
 

J Dub

Well-Known Member
I'd be very interested in what physical mechanism the plants have to produce the ultrasonic scream. Ultrasonic is defined as sound below our ability to percieve....elephants do the same thing. But do the plants have some sort of vocal cord? The article seems to indicate the message is sent chemically. So then my next question is how does a chemical response translate to or be the cause of an ultrasonic sound????
 
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