Species-specific responses to drought, salinity and their interactions in Populus euphratica and P. pruinosa seedlings

Show full item record



Permalink

http://hdl.handle.net/10138/323973

Citation

Yu , L , Dong , H , Lie , Z , Hang , Z , Korpelainen , H & Li , C 2020 , ' Species-specific responses to drought, salinity and their interactions in Populus euphratica and P. pruinosa seedlings ' , Journal of Plant Ecology , vol. 13 , no. 5 , pp. 563-573 . https://doi.org/10.1093/jpe/rtaa043

Title: Species-specific responses to drought, salinity and their interactions in Populus euphratica and P. pruinosa seedlings
Author: Yu, Lei; Dong, Haojie; Lie, Zhijun; Hang, Zhanjiang; Korpelainen, Helena; Li, Chunyang
Contributor organization: Department of Agricultural Sciences
Viikki Plant Science Centre (ViPS)
Population Genetics and Biodiversity Group
Plant Production Sciences
Date: 2020-10
Language: eng
Number of pages: 11
Belongs to series: Journal of Plant Ecology
ISSN: 1752-9921
DOI: https://doi.org/10.1093/jpe/rtaa043
URI: http://hdl.handle.net/10138/323973
Abstract: Aims Drought and salinity are severe abiotic stress factors, which limit plant growth and productivity, particularly in desert regions. In this study, we employed two desert poplars, Populus euphratica Oliver and Populus pruinosa Schrenk seedlings, to compare their tolerance to drought, salinity and combined stress. Methods We investigated species-specific responses of P. euphratica and P. pruinosa in growth, photosynthetic capacity and pigment contents, nonstructural carbohydrate concentrations, Cl- allocation, osmotic regulation and the accumulation of reactive oxygen species (ROS) under drought, salinity and the combined stress. Important Findings Populus pruinosa exhibited greater growth inhibitory effects, photosynthesis decline, stomata! closure and ROS accumulation, and lower antioxidant enzyme activities and osmotic regulation compared with P. euphratica under drought, salinity and especially under their combined stress. On the other hand, salt-stressed P. euphratica plants restricted salt transportation from roots to leaves, and allocated more Cl- to coarse roots and less to leaves, whereas salt-stressed P. pruinosa allocated more Cl- to leaves. It was shown that there is species-specific variation in these two desert poplars, and P. pruinosa suffers greater negative effects compared with P. euphratica under drought, salinity and especially under the combined stress. Therefore, in ecological restoration and afforestation efforts, species-specific responses and tolerances of these two poplar species to drought and salinity should be considered under climate change with increasing drought and soil salinity developing.
Subject: desert poplars
drought and salinity
Cl- allocation and transportation
coarse and fine roots
tolerance
SEX-SPECIFIC RESPONSES
INDUCED TREE MORTALITY
PHYSIOLOGICAL-RESPONSES
POPLAR GENOTYPES
NUTRIENT-UPTAKE
STRESS
LEAF
GROWTH
WOODY
CATHAYANA
11831 Plant biology
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
Yu_et_al_2020_JPlantEcol.pdf 1.213Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record