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Article

Abscisic acid acts essentially on stomata, not on the xylem, to improve drought resistance in tomato.

Plant, cell & environment - 1 Nov 2023

Haverroth Eduardo J, Oliveira Leonardo A, Andrade Moab T, Taggart Matthew, McAdam Scott A M, Zsögön Agustin, Thompson Andrew J, Martins Samuel C V, Cardoso Amanda A

Abstract excerpt

Drought resistance is essential for plant production under water-limiting environments. Abscisic acid (ABA) plays a critical role in stomata but its impact on hydraulic function beyond the stomata is far less studied. We selected genotypes differing in their ability to accumulate ABA to investigate its role in drought-induced dysfunction. All genotypes exhibited similar leaf and stem embolism resistance...

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PMID: 37526514
DOI: 10.1111/pce.14676

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