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Authors Theerawitaya, C; Samphumphaung, T; Cha-um, S; Yamada, N; Takabe, T
Author Full Name Theerawitaya, Cattarin; Samphumphaung, Thapanee; Cha-um, Suriyan; Yamada, Nana; Takabe, Teruhiro
Title Responses of Nipa palm (Nypa fruticans) seedlings, a mangrove species, to salt stress in pot culture
Source FLORA
Language English
Document Type Article
Author Keywords Potassium; Proline; Salt stress; Sodium; Soluble sugars
Keywords Plus PHOENIX-DACTYLIFERA L.; CHLOROPHYLL FLUORESCENCE; SALINITY; GROWTH; ACCUMULATION; WATER; EFFICIENCY; EXCHANGE; PROLINE
Abstract Nipa palm (Nypa fruticans) is the only palm that grows in mangrove vegetation. We investigated the effect of salt stress on the growth and physiology of 6-month-old seedlings of Nipa palm exposed to different degrees of salt stress (as NaCl) in pot culture. The overall growth performance of Nipa palm was unaffected by mild salt stress (8.9-16.6 dS m(-1)), whereas seedlings grown under severe salt stress (EC = 57.2 dS m(-1)) had lower chlorophyll content and fluorescence, reduced net photosynthesis and transpiration, which resulted in reduced growth of the plants. Na+ contents in leaf, petiole, and root tissues increased considerably under salt stress, depending upon the NaCl levels in the soil solution. Under salt-stress K+ content declined, whereas Ca2+ content increased somewhat, in parallel to Na+. Free proline accumulated in plants growing under high salt stress (EC = 57.2 dS m(-1)). In contrast, soluble sugars were enriched under intermediate levels of salt stress (EC = 16.6 dS m(-1)). The results obtained in the present study suggest that, based on ecophysiological data, N. fruticans is a species best adapted to grow in mangrove coastal areas with moderate only salt load, and circumscribing quite well the actual areas of occurrence of this palm in the gradient from seawater habitats to inland sites. (C) 2014 Elsevier GmbH (C) 2014 Elsevier GmbH. All rights reserved.
Author Address [Theerawitaya, Cattarin; Samphumphaung, Thapanee; Cha-um, Suriyan; Yamada, Nana] NSTDA, Natl Ctr Genet Engn & Biotechnol BIOTEC, Khlong Luang 12120, Pathum Thani, Thailand; [Takabe, Teruhiro] Meijo Univ, Int Res Ctr Nat Environm Sci, Tenpaku Ku, Nagoya, Aichi 4688502, Japan
Reprint Address Cha-um, S (corresponding author), NSTDA, Natl Ctr Genet Engn & Biotechnol BIOTEC, 113 Thailand Sci Pk,Pahonyothin Rd, Khlong Luang 12120, Pathum Thani, Thailand.
E-mail Address suriyanc@biotec.or.th
ORCID Number Cha-um, Suriyan/0000-0002-7662-363X
Funding Agency and Grant Number National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand
Funding Text The authors are thankful to the National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand, as funding agency. This research was a cooperative project between BIOTEC, Thailand, and Meijo University, Japan.
Times Cited 6
Total Times Cited Count (WoS, BCI, and CSCD) 6
Publisher ELSEVIER GMBH
Publisher City MUNICH
Publisher Address HACKERBRUCKE 6, 80335 MUNICH, GERMANY
ISSN 0367-2530
29-Character Source Abbreviation FLORA
ISO Source Abbreviation Flora
Year Published 2014
Volume 209
Issue 10
Beginning Page 597
Ending Page 603
Digital Object Identifier (DOI) 10.1016/j.flora.2014.08.004
Page Count 7
Web of Science Category Plant Sciences; Ecology
Subject Category Plant Sciences; Environmental Sciences & Ecology
Document Delivery Number AT6PC
Unique Article Identifier WOS:000345060300008
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