Plants respond to abiotic stresses, adverse chemical and physical environmental conditions, or biotic stresses, the attacks of viruses bacteria, fungi, arthropods and even other plants by activating specific responses which involve changes in their physiology, growth and development and consequently production of plants. These responses depend on changes in the activity of biochemical entities, a key point in plant physiology. The control of these activities depends on a mechanism of sensing, amplification, decoding and quenching of the stimulus, the stress, in which the cytosolic calcium level plays a central role. Thermodynamic, kinetic and biochemical considerations indicate that cytosolic calcium has the physiological properties to play this role. The binding of cytosolic calcium to many sensor proteins, cellular calcium receptors, with a very large functional spectrum of action actuates metabolic responses. Calmodulin and calmodulin-like proteins are a ubiquitous class of plant receptors playing a central role in the stress responses.
Calcium signalling in response of plants to stress / M. Cocucci - In: Encyclopedia of Plant and Crop Science / [a cura di] R.M. Goodman. - [s.l] : Taylor & Francis, 2007. - ISBN 0-8247-0943-8. - pp. 1-5 [10.1081/E-EPCS-120010640]
Calcium signalling in response of plants to stress
M. CocucciPrimo
2007
Abstract
Plants respond to abiotic stresses, adverse chemical and physical environmental conditions, or biotic stresses, the attacks of viruses bacteria, fungi, arthropods and even other plants by activating specific responses which involve changes in their physiology, growth and development and consequently production of plants. These responses depend on changes in the activity of biochemical entities, a key point in plant physiology. The control of these activities depends on a mechanism of sensing, amplification, decoding and quenching of the stimulus, the stress, in which the cytosolic calcium level plays a central role. Thermodynamic, kinetic and biochemical considerations indicate that cytosolic calcium has the physiological properties to play this role. The binding of cytosolic calcium to many sensor proteins, cellular calcium receptors, with a very large functional spectrum of action actuates metabolic responses. Calmodulin and calmodulin-like proteins are a ubiquitous class of plant receptors playing a central role in the stress responses.Pubblicazioni consigliate
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