Spermidine and abscisic acid-mediated phosphorylation of a cytoplasmic protein from rice root in response to salinity stress

Gupta, Kamala; Gupta, Bhaskar; Ghosh, Bidyut; Sengupta, Dibyendu N.

doi:10.1007/s11738-011-0802-0

Cited by 20 publications

(8 citation statements)

References 55 publications

(64 reference statements)

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“…SOS3, which senses salt stress-induced Ca2+ signature, thereby activating SOS2 to transduce the salt stress signal. Abscisic acid-mediated phosphorylation also plays a significant role in many activities within cytoplasmic proteins in rice under salinity stress [52]. The largest module that we identified includes these genes and others related to phosphorylation in nucleotide binding and kinase activities.…”

Section: Resultsmentioning

confidence: 99%

A Computational Systems Biology Study for Understanding Salt Tolerance Mechanism in Rice

et al. 2013

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Salinity is one of the most common abiotic stresses in agriculture production. Salt tolerance of rice (Oryza sativa) is an important trait controlled by various genes. The mechanism of rice salt tolerance, currently with limited understanding, is of great interest to molecular breeding in improving grain yield. In this study, a gene regulatory network of rice salt tolerance is constructed using a systems biology approach with a number of novel computational methods. We developed an improved volcano plot method in conjunction with a new machine-learning method for gene selection based on gene expression data and applied the method to choose genes related to salt tolerance in rice. The results were then assessed by quantitative trait loci (QTL), co-expression and regulatory binding motif analysis. The selected genes were constructed into a number of network modules based on predicted protein interactions including modules of phosphorylation activity, ubiquity activity, and several proteinase activities such as peroxidase, aspartic proteinase, glucosyltransferase, and flavonol synthase. All of these discovered modules are related to the salt tolerance mechanism of signal transduction, ion pump, abscisic acid mediation, reactive oxygen species scavenging and ion sequestration. We also predicted the three-dimensional structures of some crucial proteins related to the salt tolerance QTL for understanding the roles of these proteins in the network. Our computational study sheds some new light on the mechanism of salt tolerance and provides a systems biology pipeline for studying plant traits in general.

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Section: Resultsmentioning

confidence: 99%

A Computational Systems Biology Study for Understanding Salt Tolerance Mechanism in Rice

et al. 2013

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“…Similar to other plant cells, the ability of pollen to withstand stressful conditions is related to its intrinsic biochemical, physiological, and cytological characteristics, for example the production of HSPs or osmoprotectants [97], as well as the fine-tuning of ROS and Ca 2+ levels and the ability to build a cell wall suitable for new conditions [98]. PAs have often been associated with the environmental stress response as they interface with various intracellular signaling processes [11,99], such as phosphorylation [100] and cation transport [8].…”

Section: Can Polyamines Ameliorate the Damaging Effect Of Stress?mentioning

confidence: 99%

Male Fertility under Environmental Stress: Do Polyamines Act as Pollen Tube Growth Protectants?

Aloisi

Piccini

Cai

et al. 2022

IJMS

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Although pollen structure and morphology evolved toward the optimization of stability and fertilization efficiency, its performance is affected by harsh environmental conditions, e.g., heat, cold, drought, pollutants, and other stressors. These phenomena are expected to increase in the coming years in relation to predicted environmental scenarios, contributing to a rapid increase in the interest of the scientific community in understanding the molecular and physiological responses implemented by male gametophyte to accomplish reproduction. Here, after a brief introduction summarizing the main events underlying pollen physiology with a focus on polyamine involvement in its development and germination, we review the main effects that environmental stresses can cause on pollen. We report the most relevant evidence in the literature underlying morphological, cytoskeletal, metabolic and signaling alterations involved in stress perception and response, focusing on the final stage of pollen life, i.e., from when it hydrates, to pollen tube growth and sperm cell transport, with these being the most sensitive to environmental changes. Finally, we hypothesize the molecular mechanisms through which polyamines, well-known molecules involved in plant development, stress response and adaptation, can exert a protective action against environmental stresses in pollen by decoding the essential steps and the intersection between polyamines and pollen tube growth mechanisms.

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“…Exogenous application of molecules like polyamines has remained an important genre of studying ways to ameliorate stress in plants (Roy et al, 2005 ; Farooq et al, 2009 ; Gupta K. et al, 2012 ; Gupta S. et al, 2012 ; Sengupta et al, 2016 ). Abiotic stress causes drastic changes in the pathways involved in the metabolism of N 2 and polyamine.…”

Section: Ros and Polyamines—key Players In Abiotic Stress Responsementioning

confidence: 99%

Hydrogen Peroxide and Polyamines Act as Double Edged Swords in Plant Abiotic Stress Responses

et al. 2016

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The specific genetic changes through which plants adapt to the multitude of environmental stresses are possible because of the molecular regulations in the system. These intricate regulatory mechanisms once unveiled will surely raise interesting questions. Polyamines and hydrogen peroxide have been suggested to be important signaling molecules during biotic and abiotic stresses. Hydrogen peroxide plays a versatile role from orchestrating physiological processes to stress response. It helps to achieve acclimatization and tolerance to stress by coordinating intra-cellular and systemic signaling systems. Polyamines, on the other hand, are low molecular weight polycationic aliphatic amines, which have been implicated in various stress responses. It is quite interesting to note that both hydrogen peroxide and polyamines have a fine line of inter-relation between them since the catabolic pathways of the latter releases hydrogen peroxide. In this review we have tried to illustrate the roles and their multifaceted functions of these two important signaling molecules based on current literature. This review also highlights the fact that over accumulation of hydrogen peroxide and polyamines can be detrimental for plant cells leading to toxicity and pre-mature cell death.

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Spermidine and abscisic acid-mediated phosphorylation of a cytoplasmic protein from rice root in response to salinity stress

Cited by 20 publications

References 55 publications

A Computational Systems Biology Study for Understanding Salt Tolerance Mechanism in Rice

A Computational Systems Biology Study for Understanding Salt Tolerance Mechanism in Rice

Male Fertility under Environmental Stress: Do Polyamines Act as Pollen Tube Growth Protectants?

Hydrogen Peroxide and Polyamines Act as Double Edged Swords in Plant Abiotic Stress Responses

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