Open access
Date
2020-09Type
- Journal Article
Abstract
The current trend towards linking stomata regulation to plant hydraulics emphasizes the role of xylem vulnerability. Using a soil–plant hydraulic model, we show that xylem vulnerability does not trigger stomatal closure in medium-wet to dry soils and we propose that soil hydraulic conductivity loss is the primary driver of stomatal closure. This finding has two key implications: transpiration response to drought cannot be derived from plant traits only and is related to soil–root hydraulics in a predictable way; roots and their interface with the soil, the rhizosphere, are key hydraulic regions that plants can alter to efficiently adapt to water limitations. We conclude that connecting below- and aboveground hydraulics is necessary to fully comprehend plant responses to drought. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000482455Publication status
publishedExternal links
Journal / series
Trends in Plant ScienceVolume
Pages / Article No.
Publisher
ElsevierOrganisational unit
09732 - Carminati, Andrea / Carminati, Andrea
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