title: Expression of stress gene networks in tomato lines susceptible and resistant to Tomato yellow leaf curl virus in response to abiotic stresses.
abstract: The defense response to several abiotic stresses has been compared in two tomato inbred lines issued from the same breeding program, one susceptible and the other resistant to Tomato yellow leaf curl virus (TYLCV) infection. The level of oxidative burst and the amounts of key regulatory stress proteins: pathogenesis-related proteins (PRs), heat shock proteins (HSPs) and mitogen-activated protein kinases (MAPKs) were appraised following treatments with NaCl, H(2)O(2), and ethanol. Significant differences in the response of the two tomato genotypes to these stresses have been found for HSPs and MAPKs patterns at the level of down-regulation but not activation. The higher abundance of HSPs and MAPKs in tomatoes resistant to TYLCV could result in enhanced defense capacity against abiotic stresses.
authors.affiliation: Robert H Smith Institute of Plant Sciences and Genetics in Agriculture and the Otto Warburg Minerva Center for Agricultural Biotechnology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel. gorovits@agri.huji.ac.il
authors.forename: Rena
authors.initials: R
authors.lastname: Gorovits
authors.forename: Henryk
authors.initials: H
authors.lastname: Czosnek
mesh_terms: D018506:Gene Expression Regulation, Plant; D018551:Solanum lycopersicum / Q000378:metabolism* / Q000821:virology; D018384:Oxidative Stress; D010935:Plant Diseases / Q000821:virology; D010940:Plant Proteins / Q000096:biosynthesis*; D010942:Plant Viruses; D015398:Signal Transduction
chemical_list: D010940:Plant Proteins