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Publication Type J
Authors Dasgupta, N; Nandy, P; Sengupta, C; Das, S
Author Full Name Dasgupta, Nirjhar; Nandy, Parmita; Sengupta, Chandan; Das, Sauren
Title Salinity mediated biochemical changes towards differential adaptability of three mangroves from Indian Sundarbans
Source JOURNAL OF PLANT BIOCHEMISTRY AND BIOTECHNOLOGY
Language English
Document Type Article
Author Keywords Amino acids; Antioxidative enzymes; Mangroves; Osmotic potential; Sundarbans
Keywords Plus MARINA FORSK. VIERH; SALT-TOLERANCE; AVICENNIA-MARINA; WATER RELATIONS; FUNCTIONAL-CHARACTERIZATION; BRUGUIERA-GYMNORRHIZA; ANTIOXIDATIVE ENZYMES; OXIDATIVE STRESS; PLANTS; GROWTH
Abstract Cellular ion homeostasis through osmotic adjustment and efficient free radical scavenging ability are considered as fundamental salt tolerance determinants of plants. Increased salinity (similar to 30 ppt) in Indian Sundarbans has incurred detrimental impact on vegetation pattern, and leading to the precarious existence of some taxa. A comparative account on some physiological and biochemical determinants towards salt stress were assayed in order to focus on the extent of adaptability among the three true mangroves. An in vitro experiment was carried out with mangrove seedlings of Avicennia marina, Bruguiera gymnorrhiza and Heritiera fomes in differential NaCl treatments. Among the five sets of treatment (0, 100, 200, 300 and 400 mM), leaf osmotic potential (psi) shows consistent hike in A. marina and B. gymnorrhiza along the salinity gradient, at least up to 300 mM (77 and 58 % respectively over control) and comparatively poor in 400 mM. On the other hand, H. fomes reaches its maximum OP value in 200 mM NaCl treatment (64 % increment from control). Thin layer Chromatography was employed for assessing seven free amino acids and spectrophotometric quantification of them from leaf tissues grown in different salinity gradients were performed. The two antioxidative enzymes (Peroxidase and Superoxide dismutase) were estimated qualitatively and quantitatively in three taxa at different salinity level. As compared to other two taxa, H. fomes depicted fewer numbers of isoforms of two enzymes in PAGE analysis, and less enzyme activity across the salinity gradients. Considering the studied parameters, H. fomes might be endorsed towards the feeble adaptability in the present day's elevated salinity of Indian Sundarbans.
Author Address [Dasgupta, Nirjhar; Das, Sauren] Indian Stat Inst, Agr & Ecol Res Unit, Kolkata 700108, India; [Dasgupta, Nirjhar; Sengupta, Chandan] Univ Kalyani, Dept Bot, Kalyani 741235, Nadia, India; [Nandy, Parmita] Barasat Govt Coll, Dept Bot, Kolkata 700124, India
Reprint Address Das, S (reprint author), Indian Stat Inst, Agr & Ecol Res Unit, 203 BT Rd, Kolkata 700108, India.
E-mail Address sauren@isical.ac.in
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Cited Reference Count 78
Times Cited 2
Total Times Cited Count (WoS, BCI, and CSCD) 2
Publisher SPRINGER INDIA
Publisher City NEW DELHI
Publisher Address 7TH FLOOR, VIJAYA BUILDING, 17, BARAKHAMBA ROAD, NEW DELHI, 110 001, INDIA
ISSN 0971-7811
29-Character Source Abbreviation J PLANT BIOCHEM BIOT
ISO Source Abbreviation J. Plant Biochem. Biotechnol.
Publication Date JAN
Year Published 2014
Volume 23
Issue 1
Beginning Page 31
Ending Page 41
Digital Object Identifier (DOI) 10.1007/s13562-012-0182-6
Page Count 11
Web of Science Category Biochemistry & Molecular Biology; Plant Sciences
Subject Category Biochemistry & Molecular Biology; Plant Sciences
Document Delivery Number 288NW
Unique Article Identifier WOS:000329619700004
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