ArticlePloS one2014
The role of water channel proteins in facilitating recovery of leaf hydraulic conductance from water stress in Populus trichocarpa.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 49 citations in OpenAlex.
- The Soil-Plant Continuity of Rare Earth Elements: Insights into an Enigmatic Class of Xenobiotics and Their Interactions with Plant Structures and Processes.Journal of xenobiotics · 2025Review
- Responses to Drought Stress in Poplar: What Do We Know and What Can We Learn?Life (Basel, Switzerland) · 2023Review
- Foliar water uptake as a source of hydrogen and oxygen in plant biomass.Tree physiology · 2022Article
- Combined high leaf hydraulic safety and efficiency provides drought tolerance in Caragana species adapted to low mean annual precipitation.The New phytologist · 2021Article
- Defoliation-induced compensatory transpiration is compromised inPlant direct · 2020Article
- Stomatal Sensitivity to Vapor Pressure Deficit and the Loss of Hydraulic Conductivity Are Coordinated inFrontiers in plant science · 2020Article
- Hydraulic conductance, resistance, and resilience: how leaves of a tropical epiphyte respond to drought.American journal of botany · 2019Article
- Effects of major vein blockage and aquaporin inhibition on leaf hydraulics and stomatal conductance.Proceedings. Biological sciences · 2019Article
- Drought and heat stress-related proteins: an update about their functional relevance in imparting stress tolerance in agricultural crops.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Review
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- The Causes of Leaf Hydraulic Vulnerability and Its Influence on Gas Exchange inPlant physiology · 2018Article
- Leaf hydraulic vulnerability triggers the decline in stomatal and mesophyll conductance during drought in rice.Journal of experimental botany · 2018Article
- Engineering Drought Resistance in Forest Trees.Frontiers in plant science · 2018Review
- Abiotic stresses influence the transcript abundance of PIP and TIP aquaporins in Festuca species.Journal of applied genetics · 2017Article
- Repression of ARF10 by microRNA160 plays an important role in the mediation of leaf water loss.Plant molecular biology · 2016Article
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Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gas exchange is constrained by the whole-plant hydraulic conductance (Kplant). Leaves account for an important fraction of Kplant and may therefore represent a major determinant of plant productivity. Leaf hydraulic conductance (Kleaf) decreases with increasing water stress, which is due to xylem embolism in leaf veins and/or the properties of the extra-xylary pathway. Water flow through living tissues is facilitated and regulated by water channel proteins called aquaporins (AQPs). Here we assessed changes in the hydraulic conductance of Populus trichocarpa leaves during a dehydration-rewatering episode. While leaves were highly sensitive to drought, Kleaf recovered only 2 hours after plants were rewatered. Recovery of Kleaf was absent when excised leaves were bench-dried and subsequently xylem-perfused with a solution containing AQP inhibitors. We examined the expression patterns of 12 highly expressed AQP genes during a dehydration-rehydration episode to identify isoforms that may be involved in leaf hydraulic adjustments. Among the AQPs tested, several genes encoding tonoplast intrinsic proteins (TIPs) showed large increases in expression in rehydrated leaves, suggesting that TIPs contribute to reversing drought-induced reductions in Kleaf. TIPs were localized in xylem parenchyma, consistent with a role in facilitating water exchange between xylem vessels and adjacent living cells. Dye uptake experiments suggested that reversible embolism formation in minor leaf veins contributed to the observed changes in Kleaf.
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