Sodium Influx and Potassium Efflux Currents in Sunflower Root Cells Under High Salinity.

L. is an important oilseed crop, which exhibits moderate salt tolerance and can be cultivated in areas affected by salinity. Using patch-clamp electrophysiology, we have characterized Na influx and K efflux conductances in protoplasts of salt-tolerant L.

Ethylene: A Master Regulator of Salinity Stress Tolerance in Plants.

Salinity stress is one of the major threats to agricultural productivity across the globe. Research in the past three decades, therefore, has focused on analyzing the effects of salinity stress on the plants. Evidence gathered over the years supports the role of ethylene as a key regulator of salinity stress tolerance in plants.

Deciphering the nitric oxide, cyanide and iron-mediated actions of sodium nitroprusside in cotyledons of salt stressed sunflower seedlings.

Nitric oxide (NO) is an endogenous signaling molecule in plants. Sodium nitroprusside (SNP), an established NO donor used in plant science research, simultaneously releases NO, cyanide (CN) and iron (Fe) in solution. Since cyanide and iron mask NO effect of SNP, its use in NO research is debatable.

Mechanisms of Sodium Transport in Plants-Progresses and Challenges.

Understanding the mechanisms of sodium (Na⁺) influx, effective compartmentalization, and efflux in higher plants is crucial to manipulate Na⁺ accumulation and assure the maintenance of low Na⁺ concentration in the cytosol and, hence, plant tolerance to salt stress. Na⁺ influx across the plasma membrane in the roots occur mainly via nonselective cation channels (NSCCs). Na⁺ is compartmentalized into vacuoles by Na⁺/H⁺ exchangers (NHXs).