Connecting salt stress signalling pathways with salinity-induced changes in mitochondrial metabolic processes in C3 plants

M. Hafiz Che-Othman, A. Harvey Millar, Nicolas L. Taylor

Research output: Contribution to journalReview article

7 Citations (Scopus)

Abstract

Salinity exerts a severe detrimental effect on crop yields globally. Growth of plants in saline soils results in physiological stress, which disrupts the essential biochemical processes of respiration, photosynthesis, and transpiration. Understanding the molecular responses of plants exposed to salinity stress can inform future strategies to reduce agricultural losses due to salinity; however, it is imperative that signalling and functional response processes are connected to tailor these strategies. Previous research has revealed the important role that plant mitochondria play in the salinity response of plants. Review of this literature shows that 2 biochemical processes required for respiratory function are affected under salinity stress: the tricarboxylic acid cycle and the transport of metabolites across the inner mitochondrial membrane. However, the mechanisms by which components of these processes are affected or react to salinity stress are still far from understood. Here, we examine recent findings on the signal transduction pathways that lead to adaptive responses of plants to salinity and discuss how they can be involved in and be affected by modulation of the machinery of energy metabolism with attention to the role of the tricarboxylic acid cycle enzymes and mitochondrial membrane transporters in this process.

Original languageEnglish
Pages (from-to)2875-2905
Number of pages31
JournalPlant Cell and Environment
Volume40
Issue number12
DOIs
Publication statusPublished - 1 Dec 2017

Fingerprint

C3 plants
Salinity
salt stress
Salts
salinity
plant response
tricarboxylic acid cycle
Biochemical Phenomena
Citric Acid Cycle
Mitochondrial Membranes
saline soils
lung function
energy metabolism
breathing
transporters
signal transduction
crop yield
transpiration
mitochondria
plant growth

Cite this

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abstract = "Salinity exerts a severe detrimental effect on crop yields globally. Growth of plants in saline soils results in physiological stress, which disrupts the essential biochemical processes of respiration, photosynthesis, and transpiration. Understanding the molecular responses of plants exposed to salinity stress can inform future strategies to reduce agricultural losses due to salinity; however, it is imperative that signalling and functional response processes are connected to tailor these strategies. Previous research has revealed the important role that plant mitochondria play in the salinity response of plants. Review of this literature shows that 2 biochemical processes required for respiratory function are affected under salinity stress: the tricarboxylic acid cycle and the transport of metabolites across the inner mitochondrial membrane. However, the mechanisms by which components of these processes are affected or react to salinity stress are still far from understood. Here, we examine recent findings on the signal transduction pathways that lead to adaptive responses of plants to salinity and discuss how they can be involved in and be affected by modulation of the machinery of energy metabolism with attention to the role of the tricarboxylic acid cycle enzymes and mitochondrial membrane transporters in this process.",
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Connecting salt stress signalling pathways with salinity-induced changes in mitochondrial metabolic processes in C3 plants. / Che-Othman, M. Hafiz; Millar, A. Harvey; Taylor, Nicolas L.

In: Plant Cell and Environment, Vol. 40, No. 12, 01.12.2017, p. 2875-2905.

Research output: Contribution to journalReview article

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AU - Millar, A. Harvey

AU - Taylor, Nicolas L.

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AB - Salinity exerts a severe detrimental effect on crop yields globally. Growth of plants in saline soils results in physiological stress, which disrupts the essential biochemical processes of respiration, photosynthesis, and transpiration. Understanding the molecular responses of plants exposed to salinity stress can inform future strategies to reduce agricultural losses due to salinity; however, it is imperative that signalling and functional response processes are connected to tailor these strategies. Previous research has revealed the important role that plant mitochondria play in the salinity response of plants. Review of this literature shows that 2 biochemical processes required for respiratory function are affected under salinity stress: the tricarboxylic acid cycle and the transport of metabolites across the inner mitochondrial membrane. However, the mechanisms by which components of these processes are affected or react to salinity stress are still far from understood. Here, we examine recent findings on the signal transduction pathways that lead to adaptive responses of plants to salinity and discuss how they can be involved in and be affected by modulation of the machinery of energy metabolism with attention to the role of the tricarboxylic acid cycle enzymes and mitochondrial membrane transporters in this process.

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