ArticleAnnals of botany2019
Increased water use efficiency and water productivity of arabidopsis by abscisic acid receptors from Populus canescens.
Article in Annals of botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Dynamic QTL mapping revealed primarily the genetic structure of photosynthetic traits in castor (Ricinus communis L.).Scientific reports · 2023Article
- Review
- Signaling Transduction of ABA, ROS, and CaInternational journal of molecular sciences · 2022Review
- Increasing yield on dry fields: molecular pathways with growing potential.The Plant journal : for cell and molecular biology · 2022Review
- Abscisic acid agonists suitable for optimizing plant water use.Frontiers in plant science · 2022Article
- Signaling mechanisms in abscisic acid-mediated stomatal closure.The Plant journal : for cell and molecular biology · 2021Review
- Sustainable bioenergy for climate mitigation: developing drought-tolerant trees and grasses.Annals of botany · 2019Article
- Genetic manipulation of abscisic acid receptors enables modulation of water use efficiency.Plant signaling & behavior · 2019Article
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Authors and funding
3 authors.
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Abstract
BACKGROUND AND
aimsWater deficit is the single most important factor limiting plant productivity in the field. Poplar is a crop used for second-generation bioenergy production that can be cultivated on marginal land without competing for land use in food production. Poplar has a high demand for water, which makes improving its water use efficiency (WUE) an attractive goal. Recently, we showed that enhanced expression of specific receptors of arabidopsis for the phytohormone abscisic acid (ABA) can improve WUE in arabidopsis and water productivity, i.e. more biomass is formed per unit of water over time. In this study, we examined whether ABA receptors from poplar can enhance WUE and water productivity in arabidopsis.
methodsABA receptors from poplar were stably introduced into arabidopsis for analysis of their effect on water use efficiency. Physiological analysis included growth assessment and gas exchange measurements. KEY
resultsThe data presented here are in agreement with the functionality of poplar ABA receptors in arabidopsis, which led to ABA-hypersensitive seed germination and root growth. In addition, arabidopsis lines expressing poplar RCAR10, but not RCAR9, showed increased WUE by up to 26 % compared with the wild type with few trade-offs in growth that also resulted in higher water productivity during drought. The improved WUE was mediated by reduced stomatal conductance, a steeper CO2 gradient at the leaf boundary and sustained photosynthesis resulting in an increased intrinsic WUE (iWUE).
conclusionsThe analysis is a case study supporting the use of poplar ABA receptors for improving WUE and showing the feasibility of using a heterologous expression strategy for generating plants with improved water productivity.
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