Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach

doi:10.1007/s00027-021-00811-w

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	Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach
	Guan, Bo1 ; Gao, Nan 1,2; Chen, Min3 ; Cagle, Grace A.4; Hou, Aixin 4; Han, Guangxuan1 ; Tian, Xiaoyan 2
发表期刊	AQUATIC SCIENCES
ISSN	1015-1621
	2021-07-01
卷号	83 期号:3 页码:11
关键词	Phragmites australis Heterogeneity Biomass Saline wetland Total nitrogen
DOI	10.1007/s00027-021-00811-w
通讯作者	Guan, Bo(bguan@yic.ac.cn) ; Han, Guangxuan(gxhan@yic.ac.cn)
英文摘要	Coastal wetlands are highly heterogeneous due to their location between land and ocean. Clonal plants living in coastal wetlands can adapt to nutrient and salinity heterogeneity through clonal integration. However, little is known about how the single clonal ramet with fine roots adapts to nutrient heterogeneity within the microhabitat. Pot control experiments with 12 treatments were conducted to evaluate adaptive characteristics of Phragmites australis seedling to nutrient heterogeneity under salt stress. The results showed that under homogeneous nutrient treatment, 1.5% salt significantly reduced plant height and tiller number in P. australis and depressed the effect of nutrients on the leaf length, width and internode length. The homogeneous nutrient gradients had no significant effect on the aboveground biomass of P. australis in 1.5% salt condition. However, under 1.5% salt treatment, heterogeneous nutrient significantly reduced the underground biomass, including rhizome and adventitious root biomass. The root-shoot ratio was higher under homogeneous nutrient treatment than heterogeneous treatment with the same total nutrient amount applied. However, the accumulation of total nitrogen and total phosphorous in the stems and leaves of P. australis did not show significant differences, except that without salt stress, heterogeneous treatment decreased the total nitrogen content of stems and leaves at low nutrient levels. The results demonstrated a preference for homogeneous nutrient conditions in saline micro-environments in P. australis; however, when encountering heterogeneous soil nutrient environments, plants can maintain their nutrient requirements and even promote growth through physiological plasticity.
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Yellow River Delta Ecology Research Station of Coastal Wetland, Chinese Academy of Sciences
收录类别	SCI
语种	英语
关键词[WOS]	PHENOTYPIC PLASTICITY ; SOIL HETEROGENEITY ; GROWTH ; PLANT ; SALINITY ; COMPETITION ; WETLAND ; AVAILABILITY ; ENVIRONMENTS ; INTEGRATION
研究领域[WOS]	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS记录号	WOS:000691268500001
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/29716
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Guan, Bo; Han, Guangxuan
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Peoples R China 2.Jilin Jianzhu Univ, Sch Municipal & Environm Engn, Changchun 130118, Peoples R China 3.Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Peoples R China 4.Louisiana State Univ, Coll Coast & Environm, Dept Environm Sci, Baton Rouge, LA 70803 USA
推荐引用方式 GB/T 7714	Guan, Bo,Gao, Nan,Chen, Min,et al. Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach[J]. AQUATIC SCIENCES,2021,83(3):11.
APA	Guan, Bo.,Gao, Nan.,Chen, Min.,Cagle, Grace A..,Hou, Aixin.,...&Tian, Xiaoyan.(2021).Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach.AQUATIC SCIENCES,83(3),11.
MLA	Guan, Bo,et al."Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach".AQUATIC SCIENCES 83.3(2021):11.