Accumulation of Soluble Carbohydrates during Seed Development and Maturation of Low‐Raffinose, Low‐Stachyose Soybean

• DOI: 10.2135/cropsci2008.06.0370
• Publication Date: 2009-01-29T03:09:26Z
• Authors: Ralph L. Obendorf; Angela D. Zimmerman; Qianyi Zhang; Alexander Castillo; Suzanne M. Kosina; Elizabeth G. Bryant; Elizabeth M. Sens...; Jennifer Wu; Steven R. Schnebly
• Keywords: Stachyose

ABSTRACT Soybean [ Glycine max (L.) Merr.] seeds accumulate sucrose, raffinose family oligosaccharides (RFO), phytin, and small amounts of galactopinitols fagopyritols during normal seed maturation. RFO phytin are indigestible by non‐ruminant animals contribute to decreased feed efficiency, reduced mineral adsorption, phosphorous pollution in manure. Low raffinose, stachyose, may have imbibitional chilling sensitivity field emergence. The objective was characterize the profiles soluble carbohydrates cotyledons, axis, coats low stachyose (LRS) expressing mutant stc1 phenotype; (LRSP1, LRSP2) mips (CHECK) Stc1 Mips phenotype 17 stages soybean development, maturation, desiccation. Seventy percent accumulated after maximum dry weight LRS, LRSP1, LRSP2 had RFO, but LRS higher galactinol di‐ tri‐galactosides myo ‐inositol, d ‐ chiro ‐pinitol earlier maturation than CHECK, LRSP2. LRSP1 galactosyl cyclitols were reported