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Plants communicate using clicking sounds


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#1    Abramelin

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Posted 12 December 2012 - 11:47 AM

It's been known for a while that some plants are able to communicate with each other through chemical signaling — but new research published in Trends in Plant Science now suggests that plants not only respond to sounds as well, they can also talk to each other, by making "clicking" sounds.

Plants like cabbage can emit a volatile gas, namely methyl jasmonate, that warns their vegetative brethren that a herbivore is in the ‘hood — annoying things like caterpillars or garden shears.

This got Exeter University scientist Monica Gagliano thinking that maybe other plants could perform a similar trick, but with sounds.

And her intuition was right. She, along with fellow researchers Stefano Mancuso and Daniel Robert, used powerful acoustic instrumentation which allowed them to hear clicking sounds coming from the roots of corn saplings. They also found that when they suspended the young roots in water and played a continuous noise at 200 Hz – a similar frequency to the clicks – the plants grew towards the source of the sound.


http://io9.com/59199...clicking-sounds

http://www.medicalda...on-survival.htm


#2    e u n O i a

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Posted 12 December 2012 - 11:50 AM

I would really like to see the part of the plant's anatomy that makes these clicking sounds. Fascinating.

Edited by e u n O i a, 12 December 2012 - 11:50 AM.


#3    Ever Learning

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Posted 12 December 2012 - 11:58 AM

i feel bad for the cabbages, they can warn each other but do nothing about the threat. i wonder what vegetarians think about this

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#4    Taun

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Posted 12 December 2012 - 12:11 PM

So their rootlets can make sounds... what do they use to hear those sounds?


#5    e u n O i a

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Posted 12 December 2012 - 12:19 PM

View PostArmchair Educated, on 12 December 2012 - 11:58 AM, said:

i feel bad for the cabbages, they can warn each other but do nothing about the threat. i wonder what vegetarians think about this

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#6    BiffSplitkins

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Posted 12 December 2012 - 01:17 PM

They should have the San Bushmen people speak to these plants to find out what they really want. :yes:



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#7    Abramelin

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Posted 12 December 2012 - 01:21 PM

Here's the paper (pdf) :

Towards understanding plant bioacoustics
Monica Gagliano1,2, Stefano Mancuso3 and Daniel Robert4
1 Centre for Evolutionary Biology, School of Animal Biology, University of Western Australia, Crawley, WA 6009, Australia
2 Centre for Microscopy, Characterisation and Analysis, University of Western Australia, Crawley WA 6009, Australia
3 LINV, Department of Plant, Soil and Environmental Science, University of Firenze, Sesto F.no (FI), Italy
4 School of Biological Science, University of Bristol, Bristol, UK


http://www.linv.org/...000544-main.pdf


#8    Hasina

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Posted 12 December 2012 - 01:23 PM

Clicking noises?! PREDATOR! GET TO DA CHOPPA!

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#9    Abramelin

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Posted 12 December 2012 - 01:30 PM

View PostTaun, on 12 December 2012 - 12:11 PM, said:

So their rootlets can make sounds... what do they use to hear those sounds?

They don't know yet.

From the pdf:

Whilst receptor
mechanisms in plants are still to be identified
, there is
early, yet tantalising, evidence about plants’ ability of
detecting vibrations and exhibiting a frequency-selective
sensitivity that generate behavioural modifications
(Figure 1b and c). At both proximate and ultimate levels,
sound production in plants is only rarely documented
and still poorly understood. We are growing increasingly
doubtful of the idea that all acoustic emissions by plants
are the mere result of the abrupt release of tension in the
water-transport system [5]. We anticipate that plant
acoustic radiation is not simply an incidental mechanical
by-product attributable to cavitation alone;
recent evidence
illustrates that the young roots of corn generate
structured, spike-like, acoustic emissions (Figure 1a). To
date, the production mechanisms and adaptive value of
such acoustic emissions remain elusive, yet in the past two
decades several studies have pointed to the phenomenological
importance of sound and vibrations in plant physiology
(reviewed in [6]).



#10    Big Bad Voodoo

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Posted 12 December 2012 - 01:36 PM

So maybe indeed plants told Shamans about cures.

BTW I thought this is already proven. :unsure2:

Edited by the L, 12 December 2012 - 01:37 PM.

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#11    Abramelin

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Posted 12 December 2012 - 01:50 PM

The Effects of Different Musical Elements on Root Growth and Mitosis in Onion (Allium cepa) Root Apical Meristem (Musical and Biological Experimental Study)

Nuran Ekici, Feruzan Dane, Leyla Mamedova, Isin Metin and Murad Huseyinov  


ABSTRACT

In this study effects of strong, complex, rhythmic accent classical music with sekunda and kvarta intervals and frequently reprized and opus with rhythmic dynamically changing lyrics which contain more extensive kvinta septa oktava intervals on mitotic index and root growth were investigated in onion (Allium cepa) root tip cells during germination. For this aim, music samples from Wagner, Mozart, Musorgsky, (Boris Godunov) Chopin, Tchaikovski, Schubert were chosen. We found correlation between root elongation and Mitotic Index (MI). Both kinds of music have positive effects on root growth and mitotic divisions in onion root tip cells but rhythmic dynamically changing lyrics affected much better. In this study light microscopy techniques were used but ultrastructure of root tip cells will be studied with electron microscope in the following study.  

http://scialert.net/...ps.2007.369.373


#12    Abramelin

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Posted 12 December 2012 - 01:59 PM

Oh boy, and a lot more here:

ABILITY of Plants TO HEAR

Mordecai Jaffe (Wake Forest University) used an instrument that made a loud "warble" and got a doubling in the growth of dwarf pea plants. Jaffe suspects that the plant hormone gibberellic acid, which is instrumental in shoot elongation and seed germination, is involved in the "hearing" response. When Jaffe added chemicals to the pea plants inhibiting the biosynthesis of this hormone, he was unable to reproduce the original effects.

http://www.musicforyourplants.com/


#13    Abramelin

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Posted 12 December 2012 - 02:00 PM

View Postthe L, on 12 December 2012 - 01:36 PM, said:

So maybe indeed plants told Shamans about cures.

BTW I thought this is already proven. :unsure2:

Proven that they "talk"?? I don't think so, only that they respond to sounds and music.


#14    Simbi Laveau

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Posted 12 December 2012 - 02:41 PM

Starvin Marvin is their voice coach

Miss me?

#15    Abramelin

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Posted 12 December 2012 - 03:39 PM

View PostSimbi Laveau, on 12 December 2012 - 02:41 PM, said:

Starvin Marvin is their voice coach

http://www.mojvideo....1f7126362efee91





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