Long branch-chains of amylopectin with B-type crystallinity in rice seed with inhibition of starch branching enzyme I and IIb resist in situ degradation and inhibit plant growth during seedling development

Table 1 Molecular weight distribution of starch isolated from endosperm during seedling growth^a

Day after imbibition	Peak area of GPC of starch from TQ endosperm				Peak area of GPC of starch from TRS endosperm
Day after imbibition	Peak 1 (%)	Peak 2 (%)	Peak 3 (%)	Peak 1/Peak 2	Peak 1 (%)	Peak 2 (%)	Peak 3 (%)	Peak 1/Peak 2
1 d	52.6 ± 0.7a	20.3 ± 0.2a	27.2 ± 0.5a	2.60 ± 0.06a	21.9 ± 0.2a	24.7 ± 0.3a	53.4 ± 0.5c	0.89 ± 0.00c
4 d	54.2 ± 0.4a	19.6 ± 0.2a	26.2 ± 0.2a	2.76 ± 0.05a	26.0 ± 0.4b	32.4 ± 0.3b	41.7 ± 0.8b	0.80 ± 0.01b
8 d	53.4 ± 0.5a	19.8 ± 0.3a	26.8 ± 0.8a	2.69 ± 0.02a	30.9 ± 0.5c	54.1 ± 0.1c	15.0 ± 0.4a	0.57 ± 0.01a
12 d	52.8 ± 0.3a	19.8 ± 0.5a	27.4 ± 0.2a	2.66 ± 0.08a	34.0 ± 0.6c	66.0 ± 0.6d	–	0.51 ± 0.01a
16 d	–	–	–	–	32.7 ± 2.4c	67.3 ± 2.4d	–	0.49 ± 0.05a

^aData are means ± standard deviations, n = 2. Values in the same column with different letters are significantly different (P < 0.05)
^–Data are not detected

ISSN: 1471-2229