title: Identification and cloning of the Cu/Zn superoxide dismutase gene from halophyte plant Aeluropus littoralis.
abstract: Reactive oxygen species (ROS) derived from molecular oxygen under biotic and abiotic stress such as salinity which have deleterious effects on cell metabolism. The toxic effect of ROS counteract by enzymatic as well as non-enzymatic antioxidant system. Superoxide dismutase (SOD) has a potential role for elimination of ROS. Halophytes respond to salt stress at different levels and can be a model for increasing salt tolerance in crop plants. Thus salt tolerance gene isolation and cloning of gene as well as subsequent transformation are first step for sensitive crop improvement. Aeluropus littoralis is a halophyte plant from poaceae family can be as a beneficial plant with high potential for creal breeding. There was no report on isolation of SOD gene from A. littoralis and little genomic study of this plant carried out. In this study a novel gene from A. littoralis isolated. This gene amplified by reverse transcription-PCR and cloned in E. coli pTZ57R/T cloning vector. The AlSOD gene sequence contained 456 bp and the deduced transcripts encoding 152 amino acids shared a high homology with those putative CuZnSOD of higher plants like Zea mays and Oryza sativa.
authors.affiliation: Rice & Citrus Research Institute, Sari Agricultural Sciences and Natural Resources University, P.O. Box 578, Sari, I.R. Iran. mstmodarresi@gmail.com
authors.forename: M
authors.initials: M
authors.lastname: Modarresi
authors.forename: G A
authors.initials: GA
authors.lastname: Nematzadeh
authors.forename: F
authors.initials: F
authors.lastname: Moradian
authors.forename: S M
authors.initials: SM
authors.lastname: Alavi
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D008969:Molecular Sequence Data; D012275:Oryza / Q000235:genetics; D010802:Phylogeny; D006109:Poaceae / Q000201:enzymology* / Q000235:genetics; D017382:Reactive Oxygen Species / Q000378:metabolism; D055051:Salt-Tolerant Plants / Q000201:enzymology* / Q000235:genetics; D017386:Sequence Homology, Amino Acid; D013482:Superoxide Dismutase / Q000235:genetics* / Q000302:isolation & purification*; D003313:Zea mays / Q000235:genetics
chemical_list: D017382:Reactive Oxygen Species; D013482:Superoxide Dismutase