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Authors Cheng, X; Zhu, H; Banuelos, G; Yan, B; Shutes, B; Liang, Y; Chen, X
Author Full Name Cheng, X.; Zhu, H.; Banuelos, G.; Yan, B.; Shutes, B.; Liang, Y.; Chen, X.
Title Saline-alkaline tolerance of hygrophilous plant species during their asexual propagation and continued growth stages
Source SOUTH AFRICAN JOURNAL OF BOTANY
Language English
Document Type Article
Author Keywords Hygrophilous plants; Saline-alkaline tolerant; NaHCO3; Asexual reproduction; Growth; Na+/K+
Keywords Plus SEED-GERMINATION; SALT TOLERANCE; CHLOROPHYLL CONTENT; STRESS; RESPONSES; WETLANDS; WATER; PHOTOSYNTHESIS; PERFORMANCE; PHYSIOLOGY
Abstract This study determined the saline-alkaline tolerance of seven hygrophilous plant species during their asexual reproduction and continued growth stages. Indicators of asexual reproduction capacities (e.g., number of new buds/seedlings) and growth potential (e.g., total biomass, chlorophyll content index, number and length of new roots), as well as the Na+ and K+ concentrations and Na+/K+ ratios were obtained in tested plant species exposed in five alkaline salt treatments (NaHCO3) ranging from 0.3 to 20 dS/m during the 30 day experiment. The following results were observed: 1) excessive NaHCO3 (especially at a salinity level of EC >= 10 dS/m) seriously inhibited the capacity of asexual reproduction and continued growth; 2) the number of new buds/seedlings was significantly (P < 0.05) and positively correlated with the number of new roots of plants, while the number of new buds/seedlings was significantly (P < 0.05) and negatively correlated with the total biomass of plants; and 3) species-specific salt-tolerance strategies were observed, i.e., the entry and compartmentalization of Na+ was controlled, and a low Na+/K+ ratios in different parts of plants was maintained. In general, common reed (Phragmites australis), giant reed (Arundo donax), bulrush (Scirpus validus), and fishscale bamboo (Phyllostachys heteroclada) exhibited better saline-alkaline tolerance during asexual reproduction and continued growth undermoderate saline-alkaline conditions. These species are recommended as potential plant species for restoring degraded saline-alkaline wetlands. (c) 2018 SAAB. Published by Elsevier B.V. All rights reserved.
Author Address [Cheng, X.; Zhu, H.; Yan, B.; Liang, Y.; Chen, X.] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China; [Cheng, X.; Chen, X.] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Banuelos, G.] ARS, USDA, San Joaquin Valley Agr Sci Ctr, Parlier, CA 93648 USA; [Shutes, B.] Middlesex Univ, Urban Pollut Res Ctr, London NW4 4BT, England
Reprint Address Zhu, H (corresponding author), Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China.
E-mail Address zhuhui@iga.ac.cn
ORCID Number ZHU, Hui/0000-0003-0312-1281
Funding Agency and Grant Number National Key R&D Program of China [2016YFC0500404-4]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41471406]; Youth Innovation Promotion Association of CAS [2017274]
Funding Text This work was funded by the National Key R&D Program of China (No. 2016YFC0500404-4), the National Natural Science Foundation of China (No. 41471406), and the Youth Innovation Promotion Association of CAS (No. 2017274). We wish to thank Wenzhuo Yu, Yue Weng and Yutong Li for observing the changes of tested plants and recording some measured data.
Times Cited 7
Total Times Cited Count (WoS, BCI, and CSCD) 7
Publisher ELSEVIER SCIENCE BV
Publisher City AMSTERDAM
Publisher Address PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN 0254-6299
29-Character Source Abbreviation S AFR J BOT
ISO Source Abbreviation S. Afr. J. Bot.
Publication Date SEP
Year Published 2018
Volume 118
Beginning Page 129
Ending Page 137
Digital Object Identifier (DOI) 10.1016/j.sajb.2018.07.005
Page Count 9
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number GU7RC
Unique Article Identifier WOS:000445521800016
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