2018/04/04 by Christoph‐Martin Geilfus · 1 citation
Agricultural and Biological Sciences · Chemistry · #Aluminum toxicity and tolerance in plants and animals #Biology #Chemistry #Chloride #Ecology #Environmental chemistry #Nutrient #Plant Stress Responses and Tolerance #Plant responses to water stress #Salinity #Salt (chemistry) #Soil salinity #Toxicant #Toxicity
paper · pdf · doi:10.1093/pcp/pcy071
openalex publication_date 2018/04/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
In salinized soils in which chloride (Cl-) is the dominant salt anion, growth of plants that tolerate only low concentrations of salt (glycophytes) is disturbed by Cl- toxicity. Chlorotic discolorations precede necrotic lesions, causing yield reductions. Little is known about the effects of Cl- toxicity on these dysfunctions. A lack of understanding exists regarding (i) the molecular and physiological mechanisms that lead to Cl--induced damage and (ii) the adaptive aspects of induced tolerance to Cl- salinity. Here, mechanistic explanations for the Cl--induced stress responses are proposed and novel ideas and strategies by which glycophytic plants avoid the excessive accumulation of Cl- are reviewed. New experiments are suggested to test the proposed hypotheses. Cl- salinity constrains global food security and thus we urgently need more research into the causes and consequences of Cl- salinity.