Plant Mol Biol (2017) 94:669–685 DOI 10.1007/s11103-017-0635-3 Metabolic profiles of flooding-tolerant mechanism in early-stage soybean responding to initial stress 1,2 3 2 4 3 Xin Wang · Wei Zhu · Akiko Hashiguchi · Minoru Nishimura · Jingkui Tian · 1,2 Setsuko Komatsu Received: 13 April 2017 / Accepted: 14 July 2017 / Published online: 21 July 2017 © Springer Science+Business Media B.V. 2017 Abstract in both flooding-tolerant materials with the decreased and Key message Metabolomic analysis of flooding-toler - increased accumulation of sucrose and fructose, respec- ant mutant and abscisic acid-treated soybeans suggests tively, compared to flooded soybeans. Gene expression of that accumulated fructose might play a role in initial hexokinase 1 was upregulated in flooded soybean; how - flooding tolerance through regulation of hexokinase and ever, it was downregulated in both flooding-tolerant materi- phosphofructokinase. als. Metabolites involved in carbohydrate/organic acid and Abstract Soybean is sensitive to flooding stress, which proteins related to glycolysis/tricarboxylic acid cycle were markedly reduces plant growth. To explore the mecha- integrated. Increased protein abundance of phosphofruc- nism underlying initial-flooding tolerance in soybean, mass tokinase was identified in both flooding-tolerant materials, spectrometry-based metabolomic analysis was performed which was in agreement with its enzyme activity. Further- using flooding-tolerant mutant and abscisic-acid treated more, sugar
Plant Molecular Biology – Springer Journals
Published: Jul 21, 2017
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