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Intraspecific variation in drought susceptibility in Eucalyptus globulus is linked to differences in leaf vulnerability
journal contribution
posted on 2023-05-20, 03:19 authored by Christopher LucaniChristopher Lucani, Timothy BrodribbTimothy Brodribb, Gregory JordanGregory Jordan, Mitchell, PJUnderstanding intraspecific variation in the vulnerability of the xylem to hydraulic failure during drought is critical in predicting the response of forest tree species to climate change. However, few studies have assessed intraspecific variation in this trait, and a likely limitation is the large number of measurements required to generate the standard 'vulnerability curve' used to assess hydraulic failure. Here we explore an alternative approach that requires fewer measurements, and assess within species variation in leaf xylem vulnerability in Eucalyptus globulus Labill., an ecologically and economically important species with known genetic variation in drought tolerance. Using this approach we demonstrate significant phenotypic differences and evidence of plasticity among two provenances with contrasting drought tolerance.
History
Publication title
Functional Plant BiologyVolume
46Pagination
286-293ISSN
1445-4408Department/School
School of Natural SciencesPublisher
CSIRO PublishingPlace of publication
150 Oxford St, Po Box 1139, Collingwood, Australia, Victoria, 3066Rights statement
Copyright 2018 CSIRORepository Status
- Restricted