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Publication Type J
Authors Redha, A; Suleman, P; Al-Hasan, R; Afzal, M
Author Full Name Redha, A.; Suleman, P.; Al-Hasan, R.; Afzal, M.
Title Responses of Conocarpus lancifolius to environmental stress: a case study in the semi-arid land of Kuwait
Source PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY
Language English
Document Type Article
Author Keywords Conocarpus lancifolius; Drought; Electron transport rate; Environmental stress; Salinity; Temperature; Photosynthesis
Keywords Plus UNSATURATED FATTY-ACIDS; OXIDATIVE STRESS; WILD WATERMELON; DROUGHT STRESS; SALINITY; TOLERANCE; LEAVES; ACCUMULATION; ANTIOXIDANTS; TEMPERATURE
Abstract Cococarpus lancifolius Engl. grows wild in Djibouti, Somalia and East Africa, and South Asia. The species was introduced into Kuwait, where it is exposed to several stresses: oil pollution, salinity, high temperature and harsh climatic conditions. These conditions are prevalent in its semi-arid environment. In this study, the impact of salinity (2, 6 and 10%), temperature (20, 30 and 40 degrees C), polyethylene glycol (10, 30 and 60%) and drought has been investigated on C. lancifolius. Pro line (Pro) accumulation (5.5 +/- 0.03 mu/g dry weight; p <= 0.05-0.005), protein (16.47 +/- 0.052 mg/g; p <= 0.001), free amino acids (10.92 +/- 0.082 mg/g; p <= 0.006) and lipids (116.05 +/- 2.17 mu g/g; p <= 0.05) were measured in plants irrigated with 60% polyethylene glycol (PEG) for 6 days. Similar increases in the accumulation of osmolytes were observed under water deficit, NaCl, and temperature-stressed plants. Accumulation of osmolytes was correlated with photosynthetic capacity and electron transport rate. Fifteen different phospholipids were detected in leaf extracts by TLC and 6 major fatty acids were identified by GC/MS analyses. On day 4, the omega-3 fatty acid, linolenic acid was observed the predominant fatty acid present at 61.32% in the 10% PEG-treated plants. The high concentration of this omega-3 fatty acid may help C. lancifolius to adapt to semi-arid conditions in the State of Kuwait. Implications of this study may highlight sustainability of C. lancifolius in the Middle East, African peninsula and other semi-arid regions of the world.
Author Address [Redha, A.; Suleman, P.; Al-Hasan, R.; Afzal, M.] Kuwait Univ, Fac Sci, Dept Biol Sci, Safat 13060, Kuwait
Reprint Address Afzal, M (reprint author), Kuwait Univ, Fac Sci, Dept Biol Sci, Safat 13060, Kuwait.
E-mail Address Afzalq8@gmail.com
Funding Agency and Grant Number Kuwait Foundation for the Advancement of Science (KFAS) [2007/1207/07]; Research Administration at Kuwait University [SL04/08]
Funding Text We would like to acknowledge the Kuwait Foundation for the Advancement of Science (KFAS) for funding project # 2007/1207/07, and the Research Administration at Kuwait University for partially funding the SL04/08 project. We also thank the PAAF for providing us with Conocarpus plantlets, Mrs. Jacquilion Jose and Mrs. Divya Saju for their assistance with experiments, and Mr. S. Mahesh for assisting in graphics.
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Cited Reference Count 50
Times Cited 2
Total Times Cited Count (WoS, BCI, and CSCD) 3
Publisher FUNDACION ROMULO RAGGIO
Publisher City VICENTE LOPEZ (BA)
Publisher Address GASPAR CAMPOS 861, 1638 VICENTE LOPEZ (BA), ARGENTINA
ISSN 1851-5657
29-Character Source Abbreviation PHYTON-INT J EXP BOT
ISO Source Abbreviation Phyton-Int. J. Exp. Bot.
Year Published 2012
Volume 81
Beginning Page 181
Ending Page 190
Page Count 10
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number 150BN
Unique Article Identifier WOS:000319365300027
Plants associated with this reference

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