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The ss3a/be2b double mutant yields high resistant starch through cooperative regulation of starch fine structure in indica rice.

Carbohydrate polymers - 15 Oct 2026

Ying Yining, Chang Jiayuan, Zhang Zhongwei, Zhang Lin, Wang Xuexue, Yan Chengqi, Bao Jinsong

Abstract excerpt

Rice starch biosynthesis is governed by multiple enzymes, among which soluble starch synthase IIIa (SSIIIa) and starch branching enzyme IIb (BEIIb) play critical but distinct roles in determining starch fine structure. However, their combined effects on starch fine structure and physicochemical properties are not fully understood. Herein, we generated a double mutant ss3a/be2b in the indica variety GLA4 by...

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Topics

Oryza
Starch Synthase
Starch
1,4-alpha-Glucan Branching Enzyme
Mutation
Amylose

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Identifiers

PMID: 42692652
DOI: 10.1016/j.carbpol.2026.125795

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 25 Oct 2026.

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