The main role of @entity4663 was originally assumed to be as direct protective compounds important under stress conditions. Although in some cases a correlation was found between the endogenous @entity4664 content and stress tolerance, this relationship cannot be generalized. @entity4663 should no longer be considered simply as protective molecules, but rather as compounds that are involved in a complex signaling system and have a key role in the regulation of stress tolerance. The major links in @entity4664 signaling may be @entity5568 and NO, which are not only produced in the course of the @entity4664 metabolism, but also transmit signals that influence gene expression via an increase in the cytoplasmic @entity141 level. @entity4663 can also influence @entity141 influx independently of the @entity5568 - and/or NO-mediated pathways. Furthermore, these pathways may converge. In addition, several protein kinases have been shown to be influenced at the transcriptional or post-translational level by @entity4663 . Individual @entity4663 can be converted into each other in the @entity4664 cycle. In addition, their metabolism is linked with other hormones or signaling molecules. However, as individual @entity4663 trigger different transcriptional responses, other mechanisms and the existence of @entity4664 -responsive elements and the corresponding transacting protein factors are also involved in @entity4664 -related signaling pathways.

Speculation: XXXX are important in abiotic stress signaling.

@entity4664 :: ('CHEBI:60143', 'Chemical') :: ['polyamine'] @entity5568 :: ('D006861', 'Chemical') :: ['H2O2'] @entity4663 :: ('MESH:D011073', 'Chemical') :: ['Polyamines', 'polyamines'] @entity141 :: ('CHEBI:29108', 'Chemical') :: ['Ca(2+)']
@entity4663 :: (MESH:D011073,Chemical) :: ['Polyamines']
