Expression of sucrose synthase in the developing endosperm is essential for early seed development in cotton

• DOI: 10.1071/fp08017
• Publication Date: 2008-07-11T01:44:53Z
• Authors: Yong-Ling Ruan; Danny J. Llewellyn; Qing Liu; Shou-Min Xu; Li-Min Wu; Lu Wang; Robert T. Furbank
• Keywords: Callose; Starch synthase

Successful seed development requires coordinated interaction of the endosperm and embryo. In most dicotyledonous seeds, is crushed absorbed by expanding embryo in later stages development. Little known about metabolic between two filial tissues early We examined potential role sucrose synthase (Sus) cotton. Sus was immunologically localised cellularising endosperm, but not heart-stage at 10 days after anthesis. The activities acid invertase were significantly higher than young embryos, which corresponded to a steep concentration difference hexoses This observation indicates for generating tissues. Interestingly, expression starch deposition spatially separated seeds. Silencing using an RNAi approach led arrest Histochemical analyses revealed significant reduction cellulose callose deformed cells Sus-suppressed seed. data indicate critical through regulation formation.