The Synthesis of Cytosolic Ascorbate Peroxidases in Germinating Seeds and Seedlings of Soybean and Their Behavior under Flooding Stress

Keito NISHIZAWA; Susumu HIRAGA; Hiroshi YASUE; Mitsuru CHIBA; Makoto TOUGOU; Yohei NANJO; Setsuko KOMATSU

doi:10.1271/bbb.130384

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The Synthesis of Cytosolic Ascorbate Peroxidases in Germinating Seeds and Seedlings of Soybean and Their Behavior under Flooding Stress

Keito NISHIZAWA, Susumu HIRAGA, Hiroshi YASUE, Mitsuru CHIBA, Makoto TOUGOU, Yohei NANJO, Setsuko KOMATSU

著者情報

キーワード: soybean, flooding stress, ascorbate peroxidase, germinating seed, seedling

ジャーナルフリー早期公開

論文ID: 130384

DOI https://doi.org/10.1271/bbb.130384

この記事には本公開記事があります。

The final version of this article is now available: Vol. 77 (2013), No. 11 pp. 2205-2209

詳細

抄録

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.

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