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Isoflavone Accumulation Kinetics in Soybean Seed Cotyledons and Hypocotyls: Distinct Pathways and Genetic Controls

Laboratoire d'Agrophysiologie, École d'Ingénieurs Purpan, 75, voie du TOEC- BP 57611– 31076 Toulouse cedex 3, France

View larger version (22K): [in this window] [in a new window]   Figure 1. Dry weight accumulation (A, B) in cotyledons and (C, D) hypocotyls in four soybean cultivars (Imari, Queen, NSK, NT) under two culture conditions: (A, C) greenhouse 2003 and (B, D) field 2005. Means ± MSE (n = 2). Imari (l) and Queen (o) are fitted with a solid line, NSK () with a dotted line, and NT (t) with a dashed line. (DAF, d after flowering.)

View larger version (18K): [in this window] [in a new window]   Figure 2. Total isoflavone accumulation (A, B, C) in cotyledons and (D, E, F) in hypocotyls in four soybean cultivars (Imari, Queen, NSK, NT) under three culture conditions: (A, D) greenhouse 2003, (B, E) greenhouse 2004, and (C, F) field 2005. Means ± MSE (n = 2). Imari (l) and Queen (o) are fitted with a solid line, NSK () with a dotted line, and NT (t) with a dashed line. (DW, dry weight; DAF d after flowering.)

View larger version (17K): [in this window] [in a new window]   Figure 3. Individual isoflavone accumulation in cotyledons—(A, B, C) daidzein and (D, E, F) genistein—in four soybean cultivars (Imari, Queen, NSK, NT) under three culture conditions: (A, D) greenhouse 2003, (B, E) greenhouse 2004, and (C, F) field 2005. Means ± MSE (n = 2). Imari (l) and Queen (o) are fitted with a solid line, NSK () with a dotted line, and NT (t) with a dashed line. (DW, dry weight; DAF d after flowering.)

View larger version (27K): [in this window] [in a new window]   Figure 4. Individual isoflavone accumulation in hypocotyls in four soybean cultivars (Imari, Queen, NSK, NT) under three culture conditions: (A, D, G) greenhouse 2003, (B, E, H) greenhouse 2004, and (C, F, I) field 2005. Means ± MSE (n = 2). Imari (l) and Queen (o) are fitted with a solid line, NSK () with a dotted line, and NT (t) with a dashed line. For each isoflavone, (A, B, C) daidzein, (D, E, F) glycitein, and (G, H, I) genistein, the masses of conjugated and nonconjugated forms have been converted into aglycone equivalents and added. (DW, dry weight; DAF d after flowering.)