Work

A Central Role of Abscisic Acid in Stress-Regulated Carbohydrate Metabolism

Year: 2008

Type: article

Abstract: BACKGROUND: Abiotic stresses adversely affect plant growth and development. The hormone abscisic acid (ABA) plays a central role in the response and adaptation to environmental constraints. However, apart from the well established role of ABA in regulating gene expression programmes, little is known about its function in plant stress metabolism. PRINCIPAL FINDINGS: Using an integrative multiparallel approach of metabolome and transcriptome analyses, we studied the dynamic response of the model glyophyte Arabidopsis thaliana to ABA and high salt conditions. Our work shows that salt stress induces complex re-adjustment of carbohydrate metabolism and that ABA triggers the initial steps of carbon mobilisation. SIGNIFICANCE: These findings open new perspectives on how high salinity and ABA impact on central carbohydrate metabolism and highlight the power of iterative combinatorial approaches of non-targeted and hypothesis-driven experiments in stress biology.

Source: PLoS ONE

DOI: 10.1371/journal.pone.0003935

Authors: Stefan Kempa, Julia Krasensky, Silvia Dal Santo, Joachim Kopka, Claudia Jonak

Institutions: Gregor Mendel Institute of Molecular Plant Biology, Austrian Academy of Sciences, Max Planck Society, Max Planck Institute of Molecular Plant Physiology

Language: English

Topic: Plant Stress Responses and Tolerance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $2,382