IB-CAS  > 植被与环境变化国家重点实验室
Dynamic changes in leaf wax n-alkanes and delta C-13 during leaf development in winter wheat under varied irrigation experiments
Jiang, Hanbing3; Feakins, Sarah J.; Sun, Hongyong; Feng, Xiaojuan2; Zhang, Xiying; Liu, Xiuwei
2020
Source PublicationORGANIC GEOCHEMISTRY
ISSN0146-6380
Volume146
AbstractLeaf wax n-alkanes serve as biomarkers that record environmental information with their carbon isotopic composition (delta C-13(alk)) recording water availability. Agricultural and paleoclimate applications would benefit from a greater understanding of how water shortages are recorded in delta C-13(alk) across the growing season, and controlled experiments can contribute to understanding as they constrain cause and effect, although they represent highly simplified versions of natural ecosystems. In this study, we use fieldgrown winter wheat (Triticum aestivum L.) under three water treatments (full irrigation, deficit irrigation and dry/rain-fed) to investigate the changes of flag (top) leaf traits including leaf mass per area, wax nalkanes and carbon composition of bulk leaf and n-alkanes (delta C-13(alk)) during leaf development. We find that leaf wax n-alkane synthesis ceases when the leaf reaches its maximum area (fully expanded) under dry conditions. However, fully expanded leaves can still increase their n-alkane concentrations by 42% and 70% under deficit and full irrigation, respectively. Total leaf wax n-alkane concentrations and delta C-13(alk) show no difference at leaf flush between rain-fed (dry) and deficit irrigation treatments, but delta C-13(alk) under full irrigation is more depleted as expected, with more pronounced offsets between the experiments developing during the growing season. delta C-13(alk) decreases logarithmically during leaf development perhaps indicating a shift from stored carbohydrate to fresh photosynthate and shoot growth related responses. Our results indicate that the water information at leaf flush is not `locked-in' to the delta C-13(alk) signal carried by the leaf wax n-alkanes. Instead, the first flush likely reflects the signal of stored carbohydrate more so than ambient environmental conditions. Total leaf wax n-alkane concentrations and delta C-13(alk) at the mature stage carry a more complete record of differences in water use efficiency experienced during the growing season. (C) 2020 Elsevier Ltd. All rights reserved.
Keywordn-alkanes Carbon isotope Leaf development Drought stress Water use efficiency Winter wheat
Subject AreaGeochemistry & Geophysics
DOI10.1016/j.orggeochem.2020.104054
Indexed BySCI
Language英语
WOS KeywordCARBON-ISOTOPE DISCRIMINATION ; WATER-USE EFFICIENCY ; D VALUES ; CHEMICAL-COMPOSITION ; SEASONAL-VARIATION ; MODERN ANGIOSPERMS ; HYDROGEN ISOTOPES ; CUTICULAR WAXES ; GRAIN-YIELD ; C-3 PLANTS
WOS Research AreaGeochemistry & Geophysics
WOS IDWOS:000546214000002
PublisherPERGAMON-ELSEVIER SCIENCE LTD
SubtypeArticle
Publication PlaceOXFORD
EISSN1873-5290
Funding OrganizationInternational Cooperation Project of MOST [2017YEE0130500] ; Key Research and Development Program of Hebei province [19227004D] ; Hundred Talent Program of the Chinese Academy of SciencesChinese Academy of Sciences
Corresponding Author Emailxwliu@sjziam.ac.cn
OABronze
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/21693
Collection植被与环境变化国家重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Agr Water Resources, Ctr Agr Resources Res, Inst Genet & Dev Biol,Innovat Acad Seed Design, 286 Huaizhong Rd, Shijiazhuang 050021, Hebei, Peoples R China
2.Feakins, Sarah J.] Univ Southern Calif, Dept Earth Sci, 3651 Trousdale Pkwy, Los Angeles, CA 90089 USA
3.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China
4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Hanbing,Feakins, Sarah J.,Sun, Hongyong,et al. Dynamic changes in leaf wax n-alkanes and delta C-13 during leaf development in winter wheat under varied irrigation experiments[J]. ORGANIC GEOCHEMISTRY,2020,146.
APA Jiang, Hanbing,Feakins, Sarah J.,Sun, Hongyong,Feng, Xiaojuan,Zhang, Xiying,&Liu, Xiuwei.(2020).Dynamic changes in leaf wax n-alkanes and delta C-13 during leaf development in winter wheat under varied irrigation experiments.ORGANIC GEOCHEMISTRY,146.
MLA Jiang, Hanbing,et al."Dynamic changes in leaf wax n-alkanes and delta C-13 during leaf development in winter wheat under varied irrigation experiments".ORGANIC GEOCHEMISTRY 146(2020).
Files in This Item:
File Name/Size DocType Version Access License
1-s2.0-S014663802030(1853KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiang, Hanbing]'s Articles
[Feakins, Sarah J.]'s Articles
[Sun, Hongyong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiang, Hanbing]'s Articles
[Feakins, Sarah J.]'s Articles
[Sun, Hongyong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiang, Hanbing]'s Articles
[Feakins, Sarah J.]'s Articles
[Sun, Hongyong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 1-s2.0-S0146638020300899-main.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.