Jasmonate
-(3R,7R)-Methyl_Jasmonate_Structural_Formula_V1.svg)
-(3R,7S)-Methyl_Jasmonate_Structural_Formula_V1.svg)
The jasmonates are a group of phytohormones from the group of oxylipins , which are derived from jasmonic acid . As with other plant hormones, both activating and inhibiting functions are ascribed to the jasmonates. Both synergistic and antagonistic effects on other hormones have been observed.
The name comes from the jasmine plant , in which jasmonate was first discovered.
Jasmonate Induced Proteins
So-called jasmonate-induced proteins (JIPs), the accumulation of which is caused by derivatives of jasmonic acid, have been found in all plant species .
- Accumulation through drying or accumulation of auxin ,
- Jasmonate-induced proteins are absent from the roots, bleached leaves and chlorophyll- deficient leaves. However , they are present in etiolated ( yellowed ) leaves.
Effects
- Growth inhibition,
- Promoting senescence ,
- Stimulation of the wound reaction, induction of wound factors
- Inhibition of premature germination of oily seeds of Brassica and Linum ,
- Promotion of tuber formation ,
- Promotion of fruit ripeness and fruit abscission ,
- Promoting the formation of pigments ,
- Importance in the herbivore defense through protease production.
See also
Individual evidence
- ↑ a b Bernd Schäfer: Natural substances in the chemical industry. Spektrum Akademischer Verlag, 2007, ISBN 978-3-8274-1614-8 , pp. 79-80.
- ↑ Gerald Litwack: Plant hormones . Gulf Professional Publishing, 2005, ISBN 0-12-709872-0 , pp. 432 ( limited preview in Google Book search).
- ↑ by Ernst-Detlef Schulze, Erwin Beck, Klaus Müller-Hohenstein: Plant Ecology - Ernst-Detlef Schulze, Erwin Beck, Klaus Müller-Hohenstein . Springer, 2005, ISBN 978-3-540-20833-4 , pp. 240 ( limited preview in Google Book search).
- ↑ C. Wasternack: Jasmonates: An Update on Biosynthesis, Signal Transduction and Action in Plant Stress Response, Growth and Development. In: Annals of Botany. 100, 2007, pp. 681-697, doi: 10.1093 / aob / mcm079 . PMC 2749622 (free full text)
- ^ A b c Larry D. Nooden: Plant Cell Death Processes . Academic Press, 2003, ISBN 0-08-049208-8 , pp. 147 ff . ( limited preview in Google Book search).
- ^ Thomas Scott, E. Eric Ian Mercer: Concise Encyclopedia of Biochemistry and Molecular Biology . Walter de Gruyter, 1997, ISBN 3-11-014535-9 , p. 341 ( limited preview in Google Book search).