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Authors Wu, AP; Cao, T; Wu, SK; Ni, LY; Xie, P
Author Full Name Wu, Ai-Ping; Cao, Te; Wu, Shi-Kai; Ni, Le-Yi; Xie, Ping
Title Trends of Superoxide Dismutase and Soluble Protein of Aquatic Plants in Lakes of Different Trophic Levels in the Middle and Lower Reaches of the Yangtze River, China
Source JOURNAL OF INTEGRATIVE PLANT BIOLOGY
Language English
Document Type Article
Author Keywords eutrophication; macrophytes; soluble protein; superoxide dismutase
Keywords Plus FRESH-WATER; PEROXODISULFATE OXIDATION; CERATOPHYLLUM-DEMERSUM; SUBMERGED MACROPHYTES; NUTRIENT ENRICHMENT; SPECIES COMPOSITION; SALT TOLERANCE; TOTAL NITROGEN; GROWTH; RESPONSES
Abstract A limnological study was carried out to determine the responses of superoxide dismutase (SOD) activities and soluble protein (SP) contents of 11 common aquatic plants to eutrophication stress. Field investigation in 12 lakes in the middle and lower reaches of the Yangtze River was carried out from March to September 2004. Our results indicated that non-submersed (emergent and floating-leafed) plants and submersed plants showed different responses to eutrophication stress. Both SOD activities of the non-submersed and submersed plants were negatively correlated with their SP contents (P < 0.000 1). SP contents of non-submersed plants were significantly correlated with all nitrogen variables in the water (P < 0.05), whereas SP contents of submersed plants were only significantly correlated with carbon variables as well as ammonium and Secchi depth (SD) in water (P < 0.05). Only SOD activities of submersed plants were decreased with decline of SD in water (P < 0.001). Our results indicate that the decline of SOD activities of submersed plants were mainly caused by light limitation, this showed a coincidence with the decline of macrophytes in eutrophic lakes, which might imply that the antioxidant system of the submersed plants were impaired under eutrophication stress.
Author Address [Wu, Ai-Ping; Cao, Te; Wu, Shi-Kai; Ni, Le-Yi; Xie, Ping] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; [Wu, Ai-Ping] Hunan Agr Univ, Dept Ecol, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China; [Wu, Ai-Ping] Chinese Acad Sci, Wuhan Branch, Grad Univ, Wuhan 430072, Peoples R China
Reprint Address Ni, LY (corresponding author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.
E-mail Address nily@ihb.ac.cn
ResearcherID Number Wu, Aiping/AAU-8710-2020; Xie, Ping/AAL-7532-2020
Funding Agency and Grant Number National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [30570280]; National Basic Research Program of ChinaNational Basic Research Program of China [2002CB412300, 2002AA601011]
Funding Text Supported by the National Natural Science Foundation of China (30570280) and the National Basic Research Program of China (2002CB412300, 2002AA601011).
Times Cited 2
Total Times Cited Count (WoS, BCI, and CSCD) 2
Publisher WILEY
Publisher City HOBOKEN
Publisher Address 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
ISSN 1672-9072
29-Character Source Abbreviation J INTEGR PLANT BIOL
ISO Source Abbreviation J. Integr. Plant Biol.
Publication Date APR
Year Published 2009
Volume 51
Issue 4
Beginning Page 414
Ending Page 422
Digital Object Identifier (DOI) 10.1111/j.1744-7909.2009.00814.x
Page Count 9
Web of Science Category Biochemistry & Molecular Biology; Plant Sciences
Subject Category Biochemistry & Molecular Biology; Plant Sciences
Document Delivery Number 426VF
Unique Article Identifier WOS:000264735600009
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