Studies on the Movements of Ionic Selectivity, Compatible Solutes, and Intracellular Ions Caused in the Leaves of Spinach (Spinacia oleracea L.) Plants Cultured in a Nutrient Solution with Seawater
Analyses of ionic selectivity, compatible solutes, and intracellular ions in the leaves of spinach (Spinacia oleracea L.) plants cultured in the Hoagland's nutrient solution with or without seawater (40%) were carried out using two cultivars—the Helan No.3 (seawater tolerant) and the Yuanye (seawater sensitive). When both cultivars were subjected to seawater stress, the leaves of the Helan No. 3 spinach preferred potassium (K+), calcium (Ca2+), magnesium (Mg2+), and sulfate (SO4 2−) over sodium (Na+) and chlorine (Cl−) to keep high ratios of K/Na, Mg/Na, Ca/Na, and SO4 2−/Cl− compared with the Yanye spinach. Moreover, those of the Helan No. 3 spinach under the seawater stress showed high efficiency of accumulation of compatible solutes (sugars and proline), low degradation of proteins, and suppression of free amino acids. However, the activities of plasma membrane H+-ATPase and tonoplast H+-ATPase in the leaves of spinach with the stress were enhanced. Taken together, the Helan No. 3 spinach under the seawater stress seems to acquire a high tolerance to the seawater salinity by inducing a high ion uptake, low concentration of Na+ and Cl−, efficient accumulation of compatible solutes, low decomposition of proteins, and suppression of free amino acids in the leaves.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Research Article
Publication date: 2010-09-01
More about this publication?
- Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.
Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year. Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Information for Advertisers
- WEF Bookstore
- Ingenta Connect is not responsible for the content or availability of external websites