title: The phenotype alterations showed by the res tomato mutant disappear when the plants are grown under semi-arid conditions: Is the res mutant tolerant to multiple stresses?
abstract: The res (restored cell structure by salinity) mutant, recently identified as the first tomato mutant accumulating jasmonate (JA) without stress, exhibited important morphological alterations when plants were grown under control conditions but these disappeared under salt stress. Since the defense responses against stresses are activated in the res mutant as a consequence of the increased expression of genes from the JA biosynthetic and signaling pathways, the mutant may display a tolerance response not only to salt stress but also to multiple stresses. Here, we show that when res mutant plants are grown under the summer natural conditions of the Mediterranean area, with high temperatures and low relative humidity, the characteristic leaf chlorosis exhibited by the mutant disappears and leaves become dark green over time, with a similar aspect to WT leaves. Moreover, the mutant plants are able to achieve chlorophyll and fluorescence levels similar to those of WT. These results hint that research on res tomato mutant may allow very significant advances in the knowledge of defense responses activated by JA against multiple stresses.
authors.affiliation: a Department of Stress Biology and Plant Pathology , CEBAS-CSIC , Espinardo-Murcia , Spain.
authors.forename: José O
authors.initials: JO
authors.lastname: Garcia-Abellan
authors.affiliation: a Department of Stress Biology and Plant Pathology , CEBAS-CSIC , Espinardo-Murcia , Spain.
authors.forename: Irene
authors.initials: I
authors.lastname: Albaladejo
authors.affiliation: a Department of Stress Biology and Plant Pathology , CEBAS-CSIC , Espinardo-Murcia , Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Egea
authors.affiliation: a Department of Stress Biology and Plant Pathology , CEBAS-CSIC , Espinardo-Murcia , Spain.
authors.forename: Francisco B
authors.initials: FB
authors.lastname: Flores
authors.affiliation: b Agro-Food Biotechnology Research Center (BITAL), University of Almería, La Cañada de San Urbano , Almería , Spain.
authors.forename: Carmen
authors.initials: C
authors.lastname: Capel
authors.affiliation: b Agro-Food Biotechnology Research Center (BITAL), University of Almería, La Cañada de San Urbano , Almería , Spain.
authors.forename: Juan
authors.initials: J
authors.lastname: Capel
authors.affiliation: b Agro-Food Biotechnology Research Center (BITAL), University of Almería, La Cañada de San Urbano , Almería , Spain.
authors.forename: Trinidad
authors.initials: T
authors.lastname: Angosto
authors.affiliation: b Agro-Food Biotechnology Research Center (BITAL), University of Almería, La Cañada de San Urbano , Almería , Spain.
authors.forename: Rafael
authors.initials: R
authors.lastname: Lozano
authors.affiliation: a Department of Stress Biology and Plant Pathology , CEBAS-CSIC , Espinardo-Murcia , Spain.
authors.forename: Maria C
authors.initials: MC
authors.lastname: Bolarin
mesh_terms: D003517:Cyclopentanes / Q000378:metabolism; D018506:Gene Expression Regulation, Plant / Q000235:genetics / Q000502:physiology; D018551:Solanum lycopersicum / Q000235:genetics / Q000502:physiology*; D054883:Oxylipins / Q000378:metabolism; D010641:Phenotype; D018515:Plant Leaves / Q000235:genetics / Q000502:physiology; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*
chemical_list: D003517:Cyclopentanes; D054883:Oxylipins; D010940:Plant Proteins; C011006:jasmonic acid
keywords: Growth-defense tradeoff; Solanum lycopersicum; multiple stresses; phenotyping; semi-arid conditions