Work

The effects of NaCl on growth, water relations, osmolytes and ion content in Kochia prostrata

Year: 2005

Type: article

Abstract: The effects of NaCl (0, 50, 100, 150 and 200 mM) on growth, water relations, glycinebetaine, free proline, ion contents, stomata number and size of Kochia prostrata (L.) Schard were determined. Shoot and root fresh and dry matter, root and shoot length, relative growth rate, net assimilation rate, relative water content, water use efficiency, soluble sugars and glycinebetaine contents were not changed at low NaCl concentrations, but they were significantly decreased at 200 mM NaCl. The K+, Mg2+ and Ca2+ contents, water potential, chlorophyll a+b and carotenoides contents, and stomata number and size were reduced already at low concentrations of NaCl. In contrast, the Na+, Cl- and proline contents increased several times with increasing NaCl concentration. Kochia prostrata is a salt tolerant species, the optimal growth of this plant occurred up to 150 mM NaCl. The mechanisms of salt tolerance in the plant may be balance among ion accumulation and production of glycinebetaine, proline, soluble sugars for maintenance of pressure potential.

Source: Biologia Plantarum

DOI: 10.1007/s10535-005-1304-y

Authors: G. Karimi, M. Ghorbanli, H. Heidari, R. A. Khavari Nejad, M. H. Assareh

Institutions: Research Institute of Forests and Rangelands, Tarbiat Modares University, Kharazmi University

Language: English

Topic: Plant Stress Responses and Tolerance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

OpenAlex ID: W2052425335