Altered water relations, selective nutrient uptake, and reduced Na+ flux make Halopeplis perfoliata an obligate halophyte

Halopeplis perfoliata, a succulent halophyte of coastal marshy habitats, was grown in greenhouse to study its adaptive responses terms growth, osmoregulation, and N-metabolism following one-month exposure salinity (0, 150, 300, 600 mmol L-1 NaCl). Biomass optimal 150 NaCl with unaltered malondialdehyde (MDA) levels. On the other hand, biomass remained comparable non-saline control some increase MDA 300 NaCl. Osmotic potential (?S ) maintained up that correlated an succulence (SC) lower water deficit (WD), whereas sap ?S lowest along SC high WD. Sodium level gradually increased shoot higher than root. Potassium deficiency not observed salinity. Both soluble sugars nitrogen isotope (?15N) transiently Hence, modulations relation, selective nutrient uptake, controlled Na+ flux appear important for tolerance H. perfoliata.