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Plant Salt Tolerance
TLDR
Preparing protoplasts and vacuoles to detect the functional expression of K + and cation channels of plasma membrane and tonoplast, as well as plasma membrane anion channels and vacUolar and plasma membrane H + pumps, which contribute to the intracellular ionic homeostasis under saline conditions are described.
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Potassium transport and plant salt tolerance.
TLDR
The molecular and ionic mechanisms contributing to potassium homeostasis in salinized plant tissues are reviewed and prospects for breeding for salt tolerance by targeting this trait are discussed, including ameliorative effects of compatible solutes, polyamines and supplemental calcium.
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Learning from halophytes: physiological basis and strategies to improve abiotic stress tolerance in crops.
  • S. Shabala
  • Environmental Science
    Annals of botany
  • 1 November 2013
TLDR
This review argues that learning from halophytes may be a promising way of achieving salinity tolerance in non-halophytes and what specific genes need to be targeted to achieve this goal.
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Arabidopsis root K+-efflux conductance activated by hydroxyl radicals: single-channel properties, genetic basis and involvement in stress-induced cell death
TLDR
New insight is provided into the regulation of plant cation transport by ROS and possible physiological properties of plant HR-activated K+ channels are demonstrated.
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Extracellular Ca2+ Ameliorates NaCl-Induced K+ Loss from Arabidopsis Root and Leaf Cells by Controlling Plasma Membrane K+-Permeable Channels1
TLDR
The results suggest an additional mechanism of Ca2+ action on salt toxicity in plants: the amelioration of K+ loss from the cell by regulating (both directly and indirectly) K+ efflux channels.
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ROS homeostasis in halophytes in the context of salinity stress tolerance.
TLDR
It is argued that truly salt-tolerant species possessing efficient mechanisms for Na(+) exclusion from the cytosol may not require a high level of antioxidant activity, as they simply do not allow excessive ROS production in the first instance.
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Screening plants for salt tolerance by measuring K+ flux: a case study for barley
TLDR
K+ efflux from the mature root zone of intact 3-day-old seedlings following 40 min pretreatment with 80 m m NaCl was found to be a reliable screening indicator for salinity tolerance in barley and a faster and more cost-effective alternative to microelectrode measurements was developed.
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Arabidopsis Protein Kinase PKS5 Inhibits the Plasma Membrane H+-ATPase by Preventing Interaction with 14-3-3 Protein
TLDR
It is reported that an Arabidopsis thaliana Ser/Thr protein kinase, PKS5, is a negative regulator of the plasma membrane proton pump (PM H+-ATPase), and that high external pH can trigger an increase in the concentration of cytosolic-free calcium.
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Salinity-induced ion flux patterns from the excised roots of Arabidopsis sos mutants
TLDR
Improved model of SOS signalling is provided and physiological mechanisms underlying salt stress perception and signalling in plants are discussed, showing that in planta studies are essential for understanding the functional genomics of plant salt tolerance.
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Regulation of potassium transport in plants under hostile conditions: implications for abiotic and biotic stress tolerance.
TLDR
It is argued that cytosolic K(+) content may be considered as one of the 'master switches' enabling plant transition from the normal metabolism to 'hibernated state' during first hours after the stress exposure and then to a recovery phase.
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