title: Cloning and characterization of dehydrin gene from Ammopiptanthus mongolicus.
abstract: Based on the sequence of an expressed sequence tag, the full-length cDNA of 1,008 nucleotides was cloned from Ammopiptanthus mongolicus by rapid amplification of cDNA ends. It was designated as AmDHN, encoding a protein of 183 amino acids. The calculated molecular weight of the AmDHN protein is 18.4 k Da, and theoretical isoelectric point is 5.78. The AmDHN localized in nucleus. Under normal growth conditions, differential expression of AmDHN exhibited that the expression was the highest in seeds and the lowest in flowers. AmDHN could be induced by NaCl, PEG6000, ABA and drought treatments. Salt and drought resistances of transgenic plants with overexpression of AmDHN are improved. Taken together, these results demonstrated that AmDHN could regulate the expression of abiotic-responsive genes and plays important roles in modulating the tolerance of plants to abiotic stresses.
authors.affiliation: Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Inner Mongolia, 0100031, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Sun
authors.forename: Lizhen
authors.initials: L
authors.lastname: Nie
authors.forename: Guoqin
authors.initials: G
authors.lastname: Sun
authors.forename: Jiufeng
authors.initials: J
authors.lastname: Guo
authors.forename: Yongzhi
authors.initials: Y
authors.lastname: Liu
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D019143:Evolution, Molecular; D007887:Fabaceae / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D042541:Intracellular Space / Q000378:metabolism; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D030821:Plants, Genetically Modified; D010957:Plasmids / Q000235:genetics; D021381:Protein Transport; D016415:Sequence Alignment; D013312:Stress, Physiological
chemical_list: D010940:Plant Proteins; C070556:dehydrin proteins, plant