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Authors Liu, CG; Dai, Z; Xia, JY; Chang, C; Sun, HW
Author Full Name Liu, Chunguang; Dai, Zheng; Xia, Jingye; Chang, Can; Sun, Hongwen
Title Combined effect of salt and drought on boron toxicity in Puccinellia tenuiflora
Source ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Language English
Document Type Article
Author Keywords Boron toxicity; Salt stress; Drought stress; Combined stresses; Puccinellia tenuiflora
Keywords Plus ORYZA-SATIVA L.; OXIDATIVE STRESS; SALINITY STRESS; TOLERANCE; WATER; GROWTH; PLANTS; AQUAPORIN; YIELD; WHEAT
Abstract Boron toxicity is a worldwide problem, usually accompanied by salt (NaCl) and drought. The combined stresses may induce complex toxicity to the plant. The aim of the present study was to investigate how the combined stresses of salt and drought affect B toxicity in plants. Puccinellia tenuiflora seedlings were planted in vermiculite. A three (B) x three (salt) x three (drought) factorial experiment (for a total of 27 treatments) was conducted. After a 30-day cultivation, plants were harvested to determine dry weight and the concentrations of B, Na+ K+, Ca2+, and Mg2+. Plant growth was inhibited by B toxicity, which was alleviated by salt and drought. B stress enhanced B uptake and transport of the plant, which was inhibited by salt and drought. B stress had a little effect on K+ and Na+ concentration and caused Ca2+ and Mg2+ accumulation in the plant. Salt addition increased Na+ concentration and inhibited Ca2+ and Mg2+ accumulation. Drought addition inhibited Na+ accumulation and enhanced Ca2+ and Mg2+ accumulation. The combined stresses of salt and drought had a greater alleviation on the inhibition of dry weight caused by B than individual salt and drought. Besides, the combined stresses of salt and drought also enhanced B uptake and inhibited B transport. The results indicate that salt, drought, and the combined stresses of salt and drought all can alleviate B toxicity in P. tenuiflora, the main mechanism of which is the restriction of B and Na+ uptake caused by salt and drought. The combined stresses of salt and drought have a greater effect on B toxicity than individual salt and drought
Author Address [Liu, Chunguang; Dai, Zheng; Xia, Jingye; Chang, Can; Sun, Hongwen] Nankai Univ, Minist Educ, Tianjin Key Lab Environm Remediat & Pollut Contro, Key Lab Pollut Proc & Environm Criteria, Tianjin 300350, Peoples R China
Reprint Address Liu, CG (corresponding author), Nankai Univ, Minist Educ, Tianjin Key Lab Environm Remediat & Pollut Contro, Key Lab Pollut Proc & Environm Criteria, Tianjin 300350, Peoples R China.
E-mail Address liuchunguang@nankai.edu.cn
Funding Agency and Grant Number National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370519]; 111 Program of the Ministry of Education of China [T2017002]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities
Funding Text This work was financially supported by the National Natural Science Foundation of China (31370519), the 111 Program of the Ministry of Education of China (T2017002), and the Fundamental Research Funds for the Central Universities.
Times Cited 7
Total Times Cited Count (WoS, BCI, and CSCD) 7
Publisher ACADEMIC PRESS INC ELSEVIER SCIENCE
Publisher City SAN DIEGO
Publisher Address 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
ISSN 0147-6513
29-Character Source Abbreviation ECOTOX ENVIRON SAFE
ISO Source Abbreviation Ecotox. Environ. Safe.
Publication Date AUG 15
Year Published 2018
Volume 157
Beginning Page 395
Ending Page 402
Digital Object Identifier (DOI) 10.1016/j.ecoenv.2018.03.061
Page Count 8
Web of Science Category Environmental Sciences; Toxicology
Subject Category Environmental Sciences & Ecology; Toxicology
Document Delivery Number GF3HE
Unique Article Identifier WOS:000431835400047
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