title: The synthesis of cytosolic ascorbate peroxidases in germinating seeds and seedlings of soybean and their behavior under flooding stress.
abstract: Cytosolic ascorbate peroxidases (cAPXs) of soybean have been found by proteome analysis to be downregulated in submerged seedlings. To elucidate the physiological meaning of this downregulation, soybean cAPXs were characterized in this study. Vigorous synthesis was detected in germinating seeds and seedlings. Expression of the corresponding genes was detected clearly in tissues that actively underwent cell division. The gene expression was suppressed by flooding stress, but not by salinity, cold or drought stress. The expression recovered 1 d after release from flooding stress, accompanied by growth resurgence.
authors.affiliation: NARO Institute of Crop Science.
authors.forename: Keito
authors.initials: K
authors.lastname: Nishizawa
authors.forename: Susumu
authors.initials: S
authors.lastname: Hiraga
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yasue
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Chiba
authors.forename: Makoto
authors.initials: M
authors.lastname: Tougou
authors.forename: Yohei
authors.initials: Y
authors.lastname: Nanjo
authors.forename: Setsuko
authors.initials: S
authors.lastname: Komatsu
mesh_terms: D060387:Ascorbate Peroxidases / Q000096:biosynthesis / Q000235:genetics*; D002455:Cell Division; D003600:Cytosol / Q000201:enzymology; D055868:Floods; D018506:Gene Expression Regulation, Plant; D007527:Isoenzymes / Q000096:biosynthesis / Q000235:genetics; D059828:Plant Cells / Q000201:enzymology; D010940:Plant Proteins / Q000096:biosynthesis / Q000235:genetics*; D036226:Seedlings / Q000201:enzymology / Q000235:genetics*; D012639:Seeds / Q000201:enzymology / Q000235:genetics*; D013025:Glycine max / Q000201:enzymology / Q000235:genetics*; D013312:Stress, Physiological
chemical_list: D007527:Isoenzymes; D010940:Plant Proteins; D060387:Ascorbate Peroxidases