| ID | 10 |
|---|---|
| Name | calmodulin |
| Synonyms | CALM; CAM; CALM 1; CALM 2; CALM 3; CALM1; CALM2; CALM3… |
| ID | 1714 |
|---|---|
| Name | gibberellic acid |
| CAS | (1α,2β,4aα,4bβ,10β)-2,4a,7-trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-dicarboxylic acid 1,4a-lactone |
| PubMed | Abstract | RScore(About this table) |
|---|---|---|
| 2151832 | Saunders MJ: and plant hormone action. Symp Soc Exp Biol. 1990;44:271-83. Plant cells contain all the elements for a -based messenger system that could couple the external stimuli of hormones to their physiological response. These include a highly regulated low cytoplasmic level, plasma membrane and endomembrane pumps and channels, and spatially controlled -dependent regulatory proteins and kinases. However much of the evidence for as a second messenger in plants is fragmentary and circumstantial. There is some evidence linking auxin to fluctuations in free but most of the evidence points to auxin as a antagonist or having little or no effect on levels. The possibility that polar auxin transport is coupled to transport in the opposite direction is strong. There are several recent reports that abscisic acid is a agonists but the data are still preliminary and there are alternative reports that indicate that abscisic acid may actually lower calmodulin levels. There is a close link between gibberellic acid and increases in intracellular free in the barley aleurone system. These studies need to be extended to other -dependent physiological responses. The most convincing evidence that has accumulated correlates cytokinin-stimulation of several different responses with increases in intracellular by activation of plasma membrane ion channels. There is also a need to recognize that we don't understand stimulus-response coupling yet in the simplest of plant systems and the higher plants present a daunting challenge to plant scientists. It is unlikely that all hormone effects on all plants will be explained by invoking as a second messenger and we must recognize that the mechanism of action of plant hormones may be quite complex and diverse. |
1(0,0,0,1) |