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Authors Mane, AV; Wagh, VB; Karadge, BA; Samant, JS
Author Full Name Mane, A. V.; Wagh, V. B.; Karadge, B. A.; Samant, J. S.
Title Effect of varying concentrations of salinity on some biochemical parameters involved in nitrogen metabolism of four grass species
Source SCIENCEASIA
Language English
Document Type Article
Author Keywords nitrate nitrogen; nitrite nitrogen; amino acids; amides; nitrate reductase; salinity stress
Keywords Plus SALT STRESS; PROLINE ACCUMULATION; NITRATE REDUCTASE; GROWTH; PLANTS; TISSUES; ACID; NACL
Abstract Salinity adversely affects crop productivity and the quality of yield. The present work was carried out to estimate the changes in nitrogen metabolism under the influence of NaCl salinity in four selected grasses. All the species recorded a decrease in nitrate nitrogen content at the highest concentration of salinity stress (300 mM). Its maximum increase was 14 and 19% (100 mM) for Cymbopogon nardus and Cynodon dactylon, respectively. The maximum increase in nitrite nitrogen found was 11% (200 mM) in Cymbopogon nardus, 12% (100 mM) in Cynodon dactylon. The concentration of proline and amides in the leaves of all the experimental grasses showed a positive correlation with increasing concentrations of salinity. The maximum increase in proline content was 81, 88, 126, and 68% in Cymbopogon nardus, Cynodon dactylon, Pennisetum alopecuroides, and Vetiveria zizanioides, respectively, at 300 mM NaCl salinity. The concentration of free amino acids in the leaves of all the experimental grasses was considerably increased under saline condition and showed a positive correlation with increasing concentrations of salinity. Similar results were obtained in the case of amides. The concentration of nitrate reductase enzyme was elevated in Cymbopogon nardus and Pennisetum alopecuroides at lower salinity regime.
Author Address [Mane, A. V.] Fergusson Coll, Dept Environm Sci, Pune, Maharashtra, India; [Wagh, V. B.] Haffkine Inst Training Res & Testing, Mumbai, Maharashtra, India; [Karadge, B. A.] Shivaji Univ, Dept Bot, Kolhapur, Maharashtra, India; [Samant, J. S.] Shivaji Univ, Dept Environm Sci, Kolhapur, Maharashtra, India
Reprint Address Mane, AV (corresponding author), Fergusson Coll, Dept Environm Sci, Pune, Maharashtra, India.
E-mail Address ashishmane145@yahoo.co.in
ORCID Number Mane, Ashish/0000-0003-1910-8102
Publisher THAILANDS NATL SCIENCE & TECHNOLOGY DEVELOPMENT AGENCY
Publisher City BANGKOK
Publisher Address PUBLIC INFORMATION DEPT, 73/1 RAMA VI RD, RAJDHEVEE, BANGKOK, 00000, THAILAND
ISSN 1513-1874
29-Character Source Abbreviation SCIENCEASIA
ISO Source Abbreviation Scienceasia
Publication Date DEC
Year Published 2011
Volume 37
Issue 4
Beginning Page 285
Ending Page 290
Digital Object Identifier (DOI) 10.2306/scienceasia1513-1874.2011.37.285
Page Count 6
Web of Science Category Multidisciplinary Sciences
Subject Category Science & Technology - Other Topics
Document Delivery Number 877PX
Unique Article Identifier WOS:000299195500001
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