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Trade-offs between xylem water and carbohydrate storage among 24 coexisting subtropical understory shrub species spanning a spectrum of isohydry
Jiang, Peipei1,2; Meinzer, Frederick C.3; Fu, Xiaoli1; Kou, Liang1; Dai, Xiaoqin1; Wang, Huimin1
2021-03-01
Source PublicationTREE PHYSIOLOGY
ISSN0829-318X
Volume41Issue:3Pages:403-415
Corresponding AuthorFu, Xiaoli(fuxl@igsnrr.ac.cn) ; Wang, Huimin(wanghm@igsnrr.ac.cn)
AbstractHydraulic capacitance and carbohydrate storage are two drought adaptation strategies of woody angiosperms. However, we currently lack information on their associations and how they are associated with species' degree of isohydry. We measured total stem xylem nonstructural carbohydrate (NSC) concentration in the dry and wet seasons, xylem hydraulic capacitance, native leaf water potentials, pressure-volume curve parameters and photosynthetic performance in 24 woody understory species differing in their degree of isohydry. We found a trade-off between xylem water and carbohydrate storage both in storage capacitance and along a spectrum of isohydry. Species with higher hydraulic capacitance had lower native NSC storage. The less isohydric species tended to show greater NSC depletion in the dry season and have more drought-tolerant leaves. In contrast, the more isohydric species had higher hydraulic capacitance, which may enhance their drought avoidance capacity. In these species, leaf flushing in the wet season and higher photosynthetic rates in the dry season resulted in accumulation rather than depletion of NSC in the dry season. Our results provide new insights into the mechanisms through which xylem storage functions determine co-occurring species' drought adaptation strategies and improve our capacity to predict community assembly processes under drought.
Keywordhydraulic capacitance isohydry leaf water potential nonstructural carbohydrates photosynthesis
DOI10.1093/treephys/tpaa138
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundations of China[41830646] ; National Natural Science Foundations of China[31730014] ; National Natural Science Foundations of China[41671224]
Funding OrganizationNational Natural Science Foundations of China
WOS Research AreaForestry
WOS SubjectForestry
WOS IDWOS:000637330800005
PublisherOXFORD UNIV PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/161775
Collection中国科学院地理科学与资源研究所
Corresponding AuthorFu, Xiaoli; Wang, Huimin
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Res Stn, Beijing 100101, Peoples R China
2.Shandong Normal Univ, Coll Life Sci, Key Lab Plant Stress Res, Jinan 250014, Peoples R China
3.US Forest Serv, USDA, Pacific Northwest Res Stn, 3200 SW Jefferson Way, Corvallis, OR 97331 USA
Recommended Citation
GB/T 7714
Jiang, Peipei,Meinzer, Frederick C.,Fu, Xiaoli,et al. Trade-offs between xylem water and carbohydrate storage among 24 coexisting subtropical understory shrub species spanning a spectrum of isohydry[J]. TREE PHYSIOLOGY,2021,41(3):403-415.
APA Jiang, Peipei,Meinzer, Frederick C.,Fu, Xiaoli,Kou, Liang,Dai, Xiaoqin,&Wang, Huimin.(2021).Trade-offs between xylem water and carbohydrate storage among 24 coexisting subtropical understory shrub species spanning a spectrum of isohydry.TREE PHYSIOLOGY,41(3),403-415.
MLA Jiang, Peipei,et al."Trade-offs between xylem water and carbohydrate storage among 24 coexisting subtropical understory shrub species spanning a spectrum of isohydry".TREE PHYSIOLOGY 41.3(2021):403-415.
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