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Authors Huang, Y; Song, Y; Li, G; Drake, PL; Zheng, W; Li, Z; Zhou, D
Author Full Name Huang, Y.; Song, Y.; Li, G.; Drake, P. L.; Zheng, W.; Li, Z.; Zhou, D.
Title Morphological and structural plasticity of grassland species in response to a gradient in saline-sodic soils
Source PLANT BIOLOGY
Language English
Document Type Article
Author Keywords Grassland; phenotypic plasticity; reproductive effort; saline-sodic soil; tolerance
Keywords Plus PHENOTYPIC PLASTICITY; BIOMASS ALLOCATION; ROOT MORPHOLOGY; MULTIVARIATE-ANALYSIS; DROUGHT TOLERANCE; SHADE TOLERANCE; PLANT; GROWTH; LIGHT; SEEDLINGS
Abstract The abundance and distribution of species can be ascribed to both environmental heterogeneity and stress tolerance, with the latter measure sometimes associated with phenotypic plasticity. Although phenotypic plasticity varies predictably in response to common forms of stress, we lack a mechanistic understanding of the response of species to high saline-sodic soils. We compared the phenotypic plasticity of three pairs of high and low saline-sodic tolerant congeners from the families Poaceae (Leymus chinensis versus L.secalinus), Fabaceae (Lespedeza davurica versus L.bicolor) and Asteraceae (Artemisia mongolica versus A.sieversiana) in a controlled pot experiment in the Songnen grassland, China. The low tolerant species, L.secalinus and A.sieversiana exhibited higher plasticity in response to soil salinity and sodicity than their paired congeners. Highly tolerant species, L.chinensis and A.mongolica, had higher values for several important morphological traits, such as shoot length and total biomass under the high saline-sodic soil treatment than their paired congeners. In contrast, congeners from the family Fabaceae, L.davurica and L.bicolor, did not exhibit significantly different plasticity in response to soil salinity and sodicity. All species held a constant reproductive effort in response to saline-sodic soil stress. The different responses between low and high tolerant species offer an explanation for the distribution patterns of these species in the Songnen grassland. Highly tolerant species showed less morphological plasticity over a range of saline-sodic conditions than their paired congeners, which may manifest as an inability to compete with co-occurring species in locations where saline-sodic soils are absent.
Author Address [Huang, Y.; Zheng, W.; Zhou, D.] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China; [Song, Y.] Dalian Nationalities Univ, Coll Environm & Resource, Dalian, Peoples R China; [Li, G.] Wagga Wagga Agr Inst, Alliance Ind & Investment NSW & Charles Sturt Uni, EH Graham Ctr Agr Innovat, Wagga Wagga, NSW, Australia; [Drake, P. L.] Univ Western Australia, Sch Plant Biol, Crawley, WA, Australia; [Drake, P. L.] Univ Western Australia, Ctr Excellence Climate Change Woodland & Forest H, Crawley, WA, Australia; [Drake, P. L.] Dept Pk & Wildlife, Sci & Conservat Div, Bentley, WA, Australia; [Li, Z.] Jilin Teachers Inst Engn & Technol, Coll Biol & Food Engn, Changchun, Peoples R China
Reprint Address Huang, Y (reprint author), Chinese Acad Sci, Northeast Inst Geog & Agroecol, 4888 Shengbei St, Changchun 130102, Peoples R China.
E-mail Address huangyx@iga.ac.cn
ResearcherID Number Li, Guangdi/B-8515-2011
ORCID Number Li, Guangdi/0000-0002-4841-3803
Funding Agency and Grant Number National Key Basic Research Special Foundation of ChinaNational Basic Research Program of China [2014FY210300]; National Science Foundation of ChinaNational Natural Science Foundation of China [31000216]
Funding Text We are particularly grateful to Exequiel Ezcurra, University of California, Riverside, for data analysis. The research was funded by the National Key Basic Research Special Foundation of China (2014FY210300) and the National Science Foundation of China (31000216). Two anonymous reviewers provided constructive comments on an earlier version of the manuscript.
Times Cited 3
Total Times Cited Count (WoS, BCI, and CSCD) 3
Publisher WILEY
Publisher City HOBOKEN
Publisher Address 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
ISSN 1435-8603
29-Character Source Abbreviation PLANT BIOLOGY
ISO Source Abbreviation Plant Biol.
Publication Date NOV
Year Published 2015
Volume 17
Issue 6
Beginning Page 1187
Ending Page 1195
Digital Object Identifier (DOI) 10.1111/plb.12368
Page Count 9
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number CU2HH
Unique Article Identifier WOS:000363344100010
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