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Heat tolerance in a wild Oryza species is attributed to maintenance of Rubisco activation by a thermally stable Rubisco activase ortholog

Scafaro, Andrew P; Gallé, Alexander; Van Rie, Jeroen; Carmo-Silva, Elizabete; Salvucci, Michael E; Atwell, Brian J


The mechanistic basis of tolerance to heat stress was investigated in Oryza sativa and two wild rice species, Oryza meridionalis and Oryza australiensis. The wild relatives are endemic to the hot, arid Australian savannah. Leaf elongation rates and gas exchange were measured during short periods of supra-optimal heat, revealing species differences. The Rubisco activase (RCA) gene from each species was sequenced. Using expressed recombinant RCA and leaf-extracted RCA, the kinetic properties of...[Show more]

CollectionsANU Research Publications
Date published: 2016-05-05
Type: Journal article
Source: The New phytologist
DOI: 10.1111/nph.13963


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