Drought‐induced changes in root biomass largely result from altered root morphological traits: evidence from a synthesis of global field trials

Guiyao Zhou; Xuhui Zhou; Yuanyuan Nie; Shahla Hosseini Bai; Lingyan Zhou; Junjiong Shao; Weisong Cheng; Jiawei Wang; Fengquin Hu; Yuling Fu

doi:10.1111/pce.13356

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Drought‐induced changes in root biomass largely result from altered root morphological traits: evidence from a synthesis of global field trials

Journal article

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Drought‐induced changes in root biomass largely result from altered root morphological traits: evidence from a synthesis of global field trials

Guiyao Zhou, Xuhui Zhou, Yuanyuan Nie, Shahla Hosseini Bai, Lingyan Zhou, Junjiong Shao, Weisong Cheng, Jiawei Wang, Fengquin Hu and Yuling Fu

Plant, cell & environment, Vol.41(11), pp.2589-2599

2018

DOI: https://doi.org/10.1111/pce.13356

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Abstract

C sequestration

root biomass

root morphology

drought

Extreme drought is likely to become more frequent and intense as a result of global climate change, which may significantly impact plant root traits and responses (i.e., morphology, production, turnover, and biomass). However, a comprehensive understanding of how drought affects root traits and responses remains elusive. Here, we synthesized data from 128 published studies under field conditions to examine the responses of 17 variables associated with root traits to drought. Our results showed that drought significantly decreased root length and root length density by 38.29% and 11.12%, respectively, but increased root diameter by 3.49%. However, drought significantly increased root: shoot mass ratio and root cortical aerenchyma by 13.54% and 90.7%, respectively. Our results suggest that drought significantly modified root morphological traits and increased root mortality, and the drought-induced decrease in root biomass was less than shoot biomass, causing higher root: shoot mass ratio. The cascading effects of drought on root traits and responses may need to be incorporated into terrestrial biosphere models to improve prediction of the climate-biosphere feedback.

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Title: Drought‐induced changes in root biomass largely result from altered root morphological traits: evidence from a synthesis of global field trials
Authors: Guiyao Zhou (Author) - East China Normal University, China
Xuhui Zhou (Author) - East China Normal University, China
Yuanyuan Nie (Author) - Fudan University, China
Shahla Hosseini Bai (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Lingyan Zhou (Author) - East China Normal University, China
Junjiong Shao (Author) - East China Normal University, China
Weisong Cheng (Author) - East China Normal University, China
Jiawei Wang (Author) - East China Normal University, China
Fengquin Hu (Author) - Chinese Academy of Sciences, China
Yuling Fu (Corresponding Author) - East China Normal University, China
Publication details: Plant, cell & environment, Vol.41(11), pp.2589-2599
Publisher: Wiley-Blackwell Publishing Ltd.
Date published: 2018
DOI: 10.1111/pce.13356
ISSN: 0140-7791
Copyright note: Copyright © 2018 Wiley-Blackwell Publishing Ltd. This is the accepted version of the following article: Zhou, Guiyao; Zhou, Xuhui; Nie, Yuanyuan; Hosseini Bai, S; Zhou, Lingyan; Shao, Junjiong; Cheng, Weisong; Wang, Jiawei; Hu, Fengquin; Fu, Yuling (2018) Drought-induced changes in root biomass largely result from altered root morphological traits: evidence from a synthesis of global field trials, Plant, Cell & Environment, 41:11, 2589-2599, which has been published in final form at http://dx.doi.org/10.1111/pce.13356
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99451358502621
Output Type: Journal article

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