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JA is synthesized by the octadecanoid pathway, which is activated in response to wound-induced signals. [4] It is a derivative of the most rich fatty acid in the lipids of leaf membranes, alpha-linolenic acid. When plants experience mechanical wounding or herbivory, JA is synthesized de novo and induces genome-wide changes in gene expression. [5]
Systemin is a plant peptide hormone involved in the wound response in the family Solanaceae. It was the first plant hormone that was proven to be a peptide having been isolated from tomato leaves in 1991 by a group led by Clarence A. Ryan. Since then, other peptides with similar functions have been identified in tomato and outside of the ...
Abiotic factors that can damage plants include heat, freezing, flooding, lightning, ozone gas, and pollutant chemicals. Plants respond to injury by signalling that damage has occurred, by secreting materials to seal off the damaged area, by producing antimicrobial chemicals, and in woody plants by regrowing over wounds.
Injury prompts an inflammatory response in many taxa of animals; this prompts wound healing. In both plants and animals, substances are often released to help to occlude the wound, limiting loss of fluids and the entry of pathogens such as bacteria.
Rakus, a male Sumatran orangutan, treated a wound on his face by chewing leaves from a climbing plant named Akar Kuning and repeatedly applying the juice to it, according to a paper published in ...
JA-insensitive plants are highly resistant to P. syringae and unresponsive to COR; additionally, applying MeJA was sufficient to rescue virulence in COR mutant bacteria. Infected plants also expressed downstream JA and wound response genes but repressed levels of pathogenesis-related (PR) genes. All these data suggest COR acts through the JA ...
The orangutan chewed the plant's leaves to produce a liquid that Rakus repeatedly smeared on the wound and then applied the chewed-up plant material directly to the injury, much like a wound ...
CBS News shared some interesting news about an orangutan named Rakus who used a specific plant to treat a wound. The video was shared on Saturday, May 4th and it has people talking.