Evidence map›Paper›PMID 40202457›Full record

ArticleAnnals of botany2025

Roots go through rapid hydraulic recovery following moderate water stress.

Feng-Ping Li, Jairo A Palta, Guang-Qian Yao, Yuan-Yuan Zeng, Min-Hui Bi, Xue-Qian Tian, Shi-Hua Qi, Lin Cai, Xiang-Wen Fang

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In one paragraph

Article in Annals of botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Feng-Ping LiState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.
Jairo A PaltaThe UWA Institute of Agriculture, and School of Agriculture and Environment, The University of Western Australia, LB 5005, Perth, WA 6001, Australia.
Guang-Qian YaoState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.
Yuan-Yuan ZengState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.
Min-Hui BiState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.
Xue-Qian TianState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.
Shi-Hua QiState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.
Lin CaiState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.
Xiang-Wen FangState Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000 Gansu Province, China.

Funding

Gansu Science and Technology Major Project 22ZD6FA052Gansu Science and Technology Major Project 22ZD6NA007Gansu Science and Technology Major Project 24RCKB001Gansu Science and Technology Major Project 24ZD13NA016National Natural Science Foundation of China 32171491National Natural Science Foundation of China 32325036National Natural Science Foundation of China 32401538National Natural Science Foundation of China U22A20452
6 · The paper itself

Abstract

BACKGROUND AND

aimsPlant dehydration and rehydration cycles are universal phenomena in natural environments, especially in arid environments. Once a moderate water stress is relieved, the plant hydraulic system can recover, but the recovery process across roots, stems and leaves remains unknown. We examined the recovery dynamics of plant hydraulics and photosynthetic activity following moderate water stress in one herbaceous plant (Glycine max) and one woody shrub (Caragana korshinskii).

methodsThe research was conducted on pot-grown plants in a glasshouse and the recovery dynamics of the predawn leaf water potential (ψleaf), hydraulic conductance of the leaf (Kleaf), stem (Kstem) and root (Kroot), stomatal conductance (gs), leaf photosynthetic rate (An) and non-structural carbohydrates (NSCs) were monitored after the plants were released from a moderate water stress. KEY

resultsUnder moderate water stress with decreasing predawn ψleaf, Kleaf and Kroot in both species were more sensitive to water deficit than was Kstem, and the decrease in gs was faster than that in An, resulting in an increase in intrinsic water use efficiency (WUEi); NSCs decreased in leaves and stems but accumulated in roots. After rehydration, both species showed a faster recovery in Kroot and Kstem than in Kleaf, and a slower recovery in gs than in An, resulting in an increase in WUEi.

conclusionsThe rapid recovery in Kroot contributes to plant recovery from water stress, and slow recovery in Kleaf limits stomatal reopening, thus reducing transpiration and maintaining high WUEi. These traits enable species to tolerate drought.

Indexed as

CaraganaPlant RootsWaterDehydrationPhotosynthesisPlant LeavesPlant StemsPlant StomataPlant TranspirationStress, PhysiologicalWaterDroughtgas exchangehydraulicsnon-structural carbohydratesrehydrationwater use efficiency

Identifiers

PMID40202457
PMCPMC12682848

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.