Mechanisms of sodium uptake by roots of higher plants

By Jinlin Zhang, T. Flowers, Suo-min Wang. Plant and Soil, 2009

307 citations recorded by the source corpus.

The negative impact of soil salinity on agricultural yields is significant. For agricultural plants, sensitivity to salinity is commonly (but not exclusively) due to the abundance of Na+ in the soil as excess Na+ is toxic to plants. We consider reducing Na+ uptake to be the key, as well as the most efficient approach, to control Na+ accumulation in crop plants and hence to improve their salt resistance. Understanding the mechanism of Na+ uptake by the roots of higher plants is crucial for manipulating salt resistance. Hence, the aim of this review is to highlight and discuss recent advances in our understanding of the mechanisms of Na+ uptake by plant roots at both physiological and molecular levels. We conclude that continued efforts to investigate the mechanisms of root Na+ uptake in higher plants are necessary, especially that of low-affinity Na+ uptake, as it is the means by which sodium enters into plants growing in saline soils.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/a353a4d2ea8dcf88b779d0892c92dd8dbec7ab01

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Plant Science

1. M. Ashraf
2. A. Jamil
3. M. Foolad
4. S. Isayenkov
5. H. Kronzucker
6. Lasse M. Schulze
7. Jessie R. Wong
8. S. Riaz

Citations in the corpus

• Sodium as nutrient and toxicant (2013, background): “…entry paths for Na+ into roots have not as yet been successfully identified at the molecular level across taxonomic groups (Munns and Tester 2008; Zhang et al. 2010; Kronzucker and Britto 2011; Cheeseman 2013), while a strong body of evidence has shown, at least in grasses, that one family of…”
• Biochemical and physiological responses of two grapevine rootstock genotypes to drought and salt treatments (2014, background): “Thus, a better elucidation of the mechanisms involved in the root Na uptake represents a central point to understand salt tolerance (Zhang et al. 2010).”
• Gene Expression Profiling of Plants under Salt Stress (2011, background): “However, in a more recent study, the role of LCT in mediating Na+ influx across the membrane under saline conditions was questioned because of its considerable sensitivity to Ca2+ (Zhang et al., 2010).”
• Plant Salinity Stress: Many Unanswered Questions Remain (2019, background): “In Arabidopsis, AtCCC has been studied in some detail, showing that it is expressed in root and shoot tissues and most likely involved in coordinated K+, Na+, and Cl− symport (ColmeneroFlores et al., 2007; Zhang et al., 2010).”