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Alexandria L. Pivovaroff
Researcher at Pacific Northwest National Laboratory
Publications - 24
Citations - 752
Alexandria L. Pivovaroff is an academic researcher from Pacific Northwest National Laboratory. The author has contributed to research in topics: Stomatal conductance & Xylem. The author has an hindex of 9, co-authored 19 publications receiving 434 citations. Previous affiliations of Alexandria L. Pivovaroff include University of California, Los Angeles & Whittier College.
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Journal ArticleDOI
Coordination of stem and leaf hydraulic conductance in southern California shrubs: a test of the hydraulic segmentation hypothesis
TL;DR: Data indicate that leaves may act as control valves for species with high KS, or a low safety margin, and this critical role of leaves appears to contribute importantly to plant ecological specialization in a drought-prone environment.
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Multiple strategies for drought survival among woody plant species
Alexandria L. Pivovaroff,Sarah C. Pasquini,Mark E. De Guzman,Karrin P. Alstad,Jenessa S. Stemke,Louis S. Santiago +5 more
TL;DR: Drought survival mechanisms comprised of drought deciduousness, photosynthetic stems, tolerance of low minimum seasonal tissue water potential and vulnerability to drought-induced xylem cavitation thus varied orthogonally among species, and promote a diverse array of drought survival strategies in an arid ecosystem of considerable floristic complexity.
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Can vessel dimension explain tolerance toward fungal vascular wilt diseases in woody plants? Lessons from Dutch elm disease and esca disease in grapevine
TL;DR: A parallel between two vascular diseases, grapevine esca disease and Dutch elm disease, is established, and it is argued that the former should be viewed as a vascular wilt disease.
Journal ArticleDOI
Mechanisms of woody-plant mortality under rising drought, CO2 and vapour pressure deficit
Nate G. McDowell,Gerard Sapes,Alexandria L. Pivovaroff,Henry D. Adams,Craig D. Allen,William R. L. Anderegg,Matthias Arend,David D. Breshears,Timoty Brodribb,Brendan Choat,Hervé Cochard,Miquel De Cáceres,Martin G. De Kauwe,Charlotte Grossiord,William M. Hammond,Henrik Hartmann,Günter Hoch,Ansgar Kahmen,Tamir Klein,D. Scott Mackay,Marylou Mantova,Jordi Martínez-Vilalta,Belinda E. Medlyn,Maurizio Mencuccini,Andrea Nardini,Rafael S. Oliveira,Anna Sala,David T. Tissue,José M. Torres-Ruiz,Amy M. Trowbridge,Anna T. Trugman,Erin Wiley,Chonggang Xu +32 more
TL;DR: In this paper , the authors synthesize knowledge of drought-related tree mortality under a warming and drying atmosphere with rising atmospheric CO2, and outline the mechanisms leading to mortality, including carbon starvation and hydraulic failure.
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Stomatal behaviour and stem xylem traits are coordinated for woody plant species under exceptional drought conditions.
TL;DR: The goal of this study was to characterize the stomatal and xylem hydraulic safety strategies of woody species in the biodiverse Mediterranean-type ecosystem region of California and report for the first time Pclose values below -10 MPa.