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Authors Feng, ZT; Deng, YQ; Fan, H; Sun, QJ; Sui, N; Wang, BS
Author Full Name Feng, Z. T.; Deng, Y. Q.; Fan, H.; Sun, Q. J.; Sui, N.; Wang, B. S.
Title Effects of NaCl stress on the growth and photosynthetic characteristics of Ulmus pumila L. seedlings in sand culture
Source PHOTOSYNTHETICA
Language English
Document Type Article
Author Keywords chlorophyll fluorescence; elm; gas exchange; growth; salt stress; sodium ion
Keywords Plus SALINITY STRESS; SALT TOLERANCE; CHLOROPHYLL FLUORESCENCE; OSMOTIC ADJUSTMENT; XANTHOPHYLL CYCLE; PHOTOSYSTEM-II; WATER-STRESS; PLANTS; PHOTOCHEMISTRY; ACCUMULATION
Abstract The effects of NaCl stress on the growth and photosynthetic characters of Ulmus pumila L. seedlings were investigated under sand culture condition. With increasing NaCl concentration, main stem height, branch number, leaf number, and leaf area declined, while Na+ content and the Na+/K+ ratio in both expanded and expanding leaves increased. Na+ content was significantly higher in expanded leaves than in those just expanding. Chlorophyll (Chl) a and Chl b contents declined as NaCl concentration increased. The net photosynthetic rate, intercellular CO2 concentration, stomatal conductance, and transpiration rate also declined, but stomatal limitation value increased as NaCl concentration increased. Both the maximal quantum yield of PSII photochemistry and the effective quantum yield of PSII photochemistry declined as NaCl concentration rose. These results suggest that the accumulation of Na+ in already expanded leaves might reduce damage to the expanding leaves and help U. pumila endure high salinity. The reduced photosynthesis in response to salt stress was mainly caused by stomatal limitation.
Author Address [Feng, Z. T.; Deng, Y. Q.; Fan, H.; Sun, Q. J.; Sui, N.; Wang, B. S.] Shandong Normal Univ, Coll Life Sci, Key Lab Plant Stress Res, Jinan 250014, Peoples R China
Reprint Address Wang, BS (corresponding author), Shandong Normal Univ, Coll Life Sci, Key Lab Plant Stress Res, Jinan 250014, Peoples R China.
E-mail Address bswang@sdnu.edu.cn
Funding Agency and Grant Number National Natural Science Research Foundation of ChinaNational Natural Science Foundation of China (NSFC) [30870138, 31070158]; key projects in the national science and technology pillar program during the eleventh five-year plan period [2009BADA7B05]
Funding Text This research was supported by the National Natural Science Research Foundation of China, project No. 30870138 and No. 31070158, and key projects in the national science and technology pillar program during the eleventh five-year plan period (2009BADA7B05).
Times Cited 56
Total Times Cited Count (WoS, BCI, and CSCD) 62
Publisher SPRINGER
Publisher City DORDRECHT
Publisher Address VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN 0300-3604
29-Character Source Abbreviation PHOTOSYNTHETICA
ISO Source Abbreviation Photosynthetica
Publication Date JUN
Year Published 2014
Volume 52
Issue 2
Beginning Page 313
Ending Page 320
Digital Object Identifier (DOI) 10.1007/s11099-014-0032-y
Page Count 8
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number AN5HY
Unique Article Identifier WOS:000340622600017
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