Cyclic AMP: A Polyhedral Signalling Molecule in Plants

The cyclic nucleotide cAMP (3',5'-cyclic adenosine monophosphate) is nowadays recognised as an important signalling molecule in plants, involved in many molecular processes, including sensing and response to biotic and abiotic environmental stresses. The validation of a functional cAMP-dep...

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Bibliographic Details
Published in:International journal of molecular sciences 2020-07, Vol.21 (14), p.4862
Main Authors: Blanco, Emanuela, Fortunato, Stefania, Viggiano, Luigi, de Pinto, Maria Concetta
Format: Article
Language:English
Subjects:
abiotic stress
Adenosine
Adenosine monophosphate
Animals
cAMP
Cell cycle
Cell division
Cyclic AMP
Cyclic AMP - metabolism
cyclic nucleotides-gated channels
Cytosol - metabolism
Environmental stress
Enzymes
External stimuli
Flowers & plants
Humans
Kinases
Light levels
Localization
Mammals
Nucleotides
Physiology
Plant cells
plant innate immunity
Plants - metabolism
Proteins
Regulation
Review
Signal transduction
Signal Transduction - physiology
Stress, Physiological - physiology
Studies
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Summary:The cyclic nucleotide cAMP (3',5'-cyclic adenosine monophosphate) is nowadays recognised as an important signalling molecule in plants, involved in many molecular processes, including sensing and response to biotic and abiotic environmental stresses. The validation of a functional cAMP-dependent signalling system in higher plants has spurred a great scientific interest on the polyhedral role of cAMP, as it actively participates in plant adaptation to external stimuli, in addition to the regulation of physiological processes. The complex architecture of cAMP-dependent pathways is far from being fully understood, because the actors of these pathways and their downstream target proteins remain largely unidentified. Recently, a genetic strategy was effectively used to lower cAMP cytosolic levels and hence shed light on the consequences of cAMP deficiency in plant cells. This review aims to provide an integrated overview of the current state of knowledge on cAMP's role in plant growth and response to environmental stress. Current knowledge of the molecular components and the mechanisms of cAMP signalling events is summarised.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms21144862