Identification of ABA-Mediated Genetic and Metabolic Responses to Soil Flooding in Tomato (Solanum lycopersicum L. Mill).

ABSTRACT: Soil flooding is a compound abiotic stress that alters soil properties and limits atmospheric gas diffusion (O₂ and CO₂) to the roots. The involvement of abscisic acid (ABA) in the regulation of soil flooding-specific genetic and metabolic responses has been scarcely studied despite its key importance as regulator in other abiotic stress conditions. To attain this objective, wild type and ABA-deficient tomatoes were subjected to short-term (24 h) soil waterlogging. After this period, gas exchange parameters were reduced in the wild type but not in ABA-deficient plants that always had higher E and g _s . Transcript and metabolite alterations were more intense in waterlogged tissues, with genotype-specific variations. Waterlogging reduced

SUBMITTER: De Ollas C 

PROVIDER: S-EPMC7973378 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature