Sodium Chloride Reduces Growth and Cytosolic Calcium, But Does Not Affect Cytosolic pH, in Root Hairs of Arabidopsis Thaliana L.
March 2003
in “
Journal of Experimental Botany
”
New to sodium chloride? There is a guide in the encyclopedia. Read the guide → Studysummary This study found that salinity stress in Arabidopsis thaliana root hairs may inhibit hair extension through changes in the tip-focused Ca(2+) gradient, while cytosolic pH remains unaffected.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The study found that sodium chloride (NaCl) reduced the growth of root hairs in Arabidopsis thaliana by decreasing the cytosolic calcium (Ca2+) gradient at the hair tips, although it did not affect the cytosolic pH. The negative impact on root hair extension was alleviated by additional extracellular Ca2+, indicating that NaCl's long-term inhibition of growth might be due to changes in the Ca2+ gradient. The research suggested that while NaCl stress affected Ca2+ gradients and growth, cytosolic pH remained stable, highlighting the role of root hairs in nutrient uptake and potential nutrient deficiency symptoms in salt-stressed plants. The study involved experiments with 3–4-day-old plants using various NaCl and Ca2+ concentrations.
