Plant communication

Plant communication

Movement of signals or cues, presumably chemical, among individual plants or plant parts. These chemical cues are a consequence of damage to plant tissues and stimulate physiological changes in the undamaged “receiving” plant or tissue. There are very few studies of this phenomenon, and so theories of its action and significance are fairly speculative.

Plants produce a wealth of secondary metabolites that do not function in the main, or primary, metabolism of the plant, which includes photosynthesis, nutrient acquisition, and growth. Since many of these chemicals have very specific negative effects on animals or pathogens, ecologists speculate that they may be produced by plants as defenses. Plant chemical defenses either may be present all of the time (constitutive) or may be stimulated in response to attack (induced). Those produced in response to attack by pathogens are called phytoalexins. In order to demonstrate the presence of an induced defense, the chemistry of plant tissues or their suitability to some “enemy” (via a bioassay) must be compared before and after real or simulated attack. Changes found in the chemistry and suitability of control or unattacked plants when nearby experimental plants are damaged imply that some signal or cue has passed from damaged to undamaged plants. Controlled studies have shown that responses in undamaged plants are related to the proximity of a damaged neighbor. See Allelopathy, Phytoalexin, Plant metabolism

References in periodicals archive ?
Tenders are invited for design, manufacturing, supply, installation, testing and commissioning of digital plant communication system.
To make the control more proactive and predict in real-time, we read the 4 parameters of the mill every second through plant communication drivers and feed to the model.
Four roundtable discussions promoted producer interaction and collaboration; facilitated by the Easi-Set team, they focused on building trends, best practices in plant communication and coordination, advertising and marketing, and master contract management.
According to Stephanie Jentgen, Plant Communication Manager, the shift cancellation was forced because of an equipment breakdown at a parts supplier, and repairs are underway.
* Restricts plant communication with corporate IT network
Among his examples are the chemical defense of the bombardier beetle, the lungfish surviving without oxygen, jet propulsion, gecko feet, termite towers, fire and smoke detectors, and plant communication. So far it seems, none of them has fallen for carbon trading schemes.
Plant Communication opens in a white kitchen with a bushy potted fern and another plant in a window.
The thought of plant communication has riled biologists for nearly 20 years, Karban says.
Since the persuasive criticisms put forth by Fowler and Lawton (1985), only a few papers mention plant communication (but see Karban and Meyers 1989, Chessin and Zipf 1990) or have attempted to test it (but see Haukioja et al.
Tenders are invited for fire alarm and plant communication cables
Baldwin, now at the State University of New York at Buffalo, says the evidence for methyl jasmonate's specific defense-inducing abilities makes the compound "one of the best-established molecular cues [for proteinase-inhibitor gene activation]." And Rhoades calls teh research "a major advance" in the field of plant communication because it clearly demonstrates a biochemical mechanism responsible for the observed sagebrush-tomato interactions.
Tenders are invited for supply of plant communication system for ph-5 in mumbai refinery.