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• Bitrián, M
• Zarza, X
• Altabella, T
• Tiburcio, A
• Alcázar, R
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• Bitrián, M
• Zarza, X
• Altabella, T
• Tiburcio, A
• Alcázar, R
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• Bitrián, M
• Zarza, X
• Altabella, T
• Tiburcio, A
• Alcázar, R

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Metabolites 2012, 2(3), 516-528; doi:10.3390/metabo2030516

Review

Polyamines under Abiotic Stress: Metabolic Crossroads and Hormonal Crosstalks in Plants

Marta Bitrián, Xavier Zarza, Teresa Altabella, Antonio F. Tiburcio and Rubén Alcázar*

Unit of Plant Physiology, Department of Natural Products and Plant Biology, Faculty of Pharmacy, University of Barcelona, Diagonal, 643, 08028 Barcelona, Spain

* Author to whom correspondence should be addressed.

Received: 22 June 2012; in revised form: 6 August 2012 / Accepted: 10 August 2012 / Published: 20 August 2012

(This article belongs to the Special Issue Feature Papers)

Download PDF Full-Text [312 KB, uploaded 20 August 2012 13:42 CEST]

Abstract: Polyamines are essential compounds for cell survival and have key roles in plant stress protection. Current evidence points to the occurrence of intricate cross-talks between polyamines, stress hormones and other metabolic pathways required for their function. In this review we integrate the polyamine metabolic pathway in the context of its immediate metabolic network which is required to understand the multiple ways by which polyamines can maintain their homeostasis and participate in plant stress responses.

Keywords: polyamines; stress; metabolism; SAM; GABA; proline; ABA

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