Loading content, please wait..
loading..
Logo
Version 3.22
or
Authors Chen, T; Jiang, HS; Wang, Y; Wang, SN; Yin, LY; Cao, Y
Author Full Name Chen, Tao; Jiang, Hong Sheng; Wang, Ying; Wang, Shaoning; Yin, Liyan; Cao, Yu
Title Responses of five submerged macrophytes to NaCl salinity in a tropical mesocosm study
Source FUNDAMENTAL AND APPLIED LIMNOLOGY
Language English
Document Type Article
Author Keywords aquatic plants; tropics; freshwater ecosystem; submerged macrophytes; Hainan Island; experiment
Keywords Plus NITROGEN PULSE; GROWTH; SALT; TOLERANCE; SEDIMENT; PATTERN; ISLAND
Abstract Submerged macrophytes are important primary producers in freshwater ecosystems in tropical zones. Extreme climate events such as strong typhoons in tropical coastal areas are expected to increase in frequency in the near future, which could induce salinity changes and significantly influence aquatic macrophytes. However, few studies have focused on the effects of salinity on submerged macrophytes in tropical zones. Here, we conducted a three-month, tropical-zone mesocosm study to investigate the effects of salinity stress on the growth of five submerged macrophytes (two widely distributed species Stuckenia pectinata and Myriophyllum spicatum and three narrowly distributed species Vallisneria denseserrulata, Ottelia alismoides, and Cabomba caroliniana). Four salinity-level treatments were established, including P0 (control, no addition of NaCl), P2 (salinity of 2 parts per thousand), P5 (salinity of 5 parts per thousand), and PD (dynamic salinity, initial 2 %o with monthly salinity increases of 0.5 960). We hypothesized that species with broad distribution would better tolerate higher salinity stress compared to species distributed in narrow ranges. Consistently, both S. pectinata and M. spicatum tolerated P5 treatment, and M. spicatum exhibited smaller leaves and a reduced aerenchyma area in the leaf midrib following exposure. Both V. denseserrulata and O. alismoides survived the moderate salinity levels but showed distinct responses to the increase in salinity in regard to growth and reproduction. In conclusion, in tropical Hainan Island, China, we found distinct species-specific responses of the five submerged macrophytes to salinity stress. Those species with broader ecological niches will likely demonstrate better survival under extreme salinity changes in the future.
Author Address [Chen, Tao; Wang, Ying; Wang, Shaoning; Yin, Liyan] Hainan Univ, Sch Life & Pharmaceut Sci, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou 570228, Hainan, Peoples R China; [Jiang, Hong Sheng; Cao, Yu] Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China
Reprint Address Yin, LY (corresponding author), Hainan Univ, Sch Life & Pharmaceut Sci, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou 570228, Hainan, Peoples R China.; Cao, Y (corresponding author), Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China.
E-mail Address lyyin@163.com; caoyu@wbgcas.cn
Funding Agency and Grant Number National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31870345, 31860101]
Funding Text This research was funded by the National Natural Science Foundation of China (31870345 and 31860101). We thank Xiao Hang Zhang, Xiang Jie Zeng, Jing Jing Ding, Kai Qi Sun, and Zhi Li for their assistance in this experiment.
Publisher E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG
Publisher City STUTTGART
Publisher Address NAEGELE U OBERMILLER, SCIENCE PUBLISHERS, JOHANNESSTRASSE 3A, D 70176 STUTTGART, GERMANY
ISSN 1863-9135
29-Character Source Abbreviation FUND APPL LIMNOL
ISO Source Abbreviation Fundam. Appl. Limnol.
Publication Date JUN
Year Published 2020
Volume 193
Issue 4
Beginning Page 359
Ending Page 370
Digital Object Identifier (DOI) 10.1127/fal/2020/1303
Page Count 12
Web of Science Category Limnology; Marine & Freshwater Biology
Subject Category Marine & Freshwater Biology
Document Delivery Number MD1SA
Unique Article Identifier WOS:000543753800006
Plants associated with this reference

LEGAL NOTICES — This website is protected by Copyright © The University of Sussex, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021. The eHALOPH database is protected by Database Right and Copyright © The University of Sussex and other contributors, 2006, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021. This database is based on an earlier work by James Aronson.
THIS WEBSITE AND THIS DATABASE ARE PROVIDED ON AN "AS IS" BASIS, AND YOU USE THEM AND RELY ON THEM AT YOUR OWN RISK.

Contact email: halophytes@sussex.ac.uk
Credits – Tim Flowers, Joaquim Santos, Moritz Jahns, Brian Warburton, Peter Reed