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Conjugated and Free Polyamine Levels in Normal and Aborting Maize Kernels

Dep. of Agronomy, National Taiwan Univ., Taipei, Taiwan 106, Republic of China

View larger version (25K): [in a new window]   Fig. 1. Dry weight accumulation of kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four replicates.

View larger version (25K): [in a new window]   Fig. 2. Number of endosperm nuclei in kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four replicates.

View larger version (24K): [in a new window]   Fig. 3. Endosperm DNA levels in kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four replicates.

View larger version (26K): [in a new window]   Fig. 4. Nuclei DNA contents for kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four replicates.

View larger version (28K): [in a new window]   Fig. 5. Total polyamine levels in kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four separate extractions for each development stage.

View larger version (36K): [in a new window]   Fig. 6. Putrescine (PUT) levels in kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four separate extractions for each development stage.

View larger version (37K): [in a new window]   Fig. 7. Spermidine (SPD) levels in kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four separate extractions for each development stage.

View larger version (36K): [in a new window]   Fig. 8. Spermine (SPM) levels in kernels from the apical (A) and basal (B) regions of ears of cultivar TN 351, and from the apical (C) and basal (D) regions of ears of cultivar TN 1. Values are means ± SE of four separate extractions for each development stage.