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Publication Type J
Authors Mori, S., M. Yoshiba and T. Tadano
Title Growth response of Suaeda salsa (L.) Pall to graded NaCl concentrations and the role of chlorine in growth stimulation
Source Soil Science and Plant Nutrition
Language English
Author Keywords chlorine growth halophyte NaCl O-2 evolution Suaeda salsa salinity tolerance maritima stress plant Plant Sciences Environmental Sciences & Ecology Agriculture
Abstract Growth response of a halophyte species, Suaeda salsa (L.) Pall, to graded NaCl concentrations was examined under water culture conditions. Growth increased with increasing NaCl concentration from 2 to 200 mol m(-3), but decreased at NaCl concentrations above 200 mol m(-3). Maximum growth was attained at 50 to 200 mol m(-3). The role of Na and Cl in the growth stimulation by NaCl was examined by growing S. salsa in nutrient solutions with or without Na and Cl separately at 5 and 50 mol m(-3). The growth stimulation induced by Cl was greater than that induced by Na, and Na did not significantly induce growth stimulation. The effect of Na or Cl on O-2 evolution from leaves was examined under 5 and 50 mol m(-3) concentrations using an oxygen electrode. Oxygen evolution from leaves in -Cl treatments was smaller than that in +Cl treatments both at 5 and 50 mol m(-3). The O-2 evolution in Na treatments with Cl was similar to that at NaCl. These results indicated that the mechanism of growth stimulation induced by Cl was mainly an increased photosystem II of photosynthesis in leaves. The contribution of Na on the growth stimulation of S. salsa by NaCl was smaller than Cl.
Author Address Tokyo Univ Agr, Lab Plant Prod Chem, Dept Appl Biol & Chem, Fac Appl Biosci,Setagaya Ku, Tokyo 1568502, Japan. Tadano, T (reprint author), Tokyo Univ Agr, Lab Plant Prod Chem, Dept Appl Biol & Chem, Fac Appl Biosci,Setagaya Ku, 1-1-1 Sakuragaoka, Tokyo 1568502, Japan. tadano@nodai.ac.jp
ISSN 0038-0768
ISBN 0038-0768
29-Character Source Abbreviation Soil Sci. Plant Nutr.
Publication Date Oct
Year Published 2006
Volume 52
Issue 5
Beginning Page 610-617
Digital Object Identifier (DOI) 10.1111/j.1747-0765.2006.00076.x
Unique Article Identifier WOS:000240147200005
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