ArticlePlant molecular biology2022
Mutation in BEIIb mitigates the negative effect of the mutation in ISA1 on grain filling and amyloplast formation in rice.
Article in Plant molecular biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 15 citations in OpenAlex.
- Starch branching enzyme: structure, key functional sites, and regulation of starch characteristics and rice qualities.Plant cell reports · 2025Review
- Physiological and compensatory roles of three starch-branching enzymes in different rice organs.Plant molecular biology · 2025Article
- Mutations in starch BRANCHING ENZYME 2a suppress the traits caused by the loss of ISOAMYLASE1 in barley.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Rice LIKE EARLY STARVATION1 cooperates with FLOURY ENDOSPERM6 to modulate starch biosynthesis and endosperm development.The Plant cell · 2024Article
- A model for the reproduction of amylopectin cluster by coordinated actions of starch branching enzyme isoforms.Plant molecular biology · 2023Review
- FLOURY ENDOSPERM 6 mutations enhance the sugary phenotype caused by the loss of ISOAMYLASE1 in barley.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Effect of Heading Date on the Starch Structure and Grain Yield of Rice Lines with Low Gelatinization Temperature.International journal of molecular sciences · 2022Article
- Improving Agricultural Traits While Maintaining High Resistant Starch Content in Rice.Rice (New York, N.Y.) · 2022Article
- Effects of Various Allelic Combinations of Starch Biosynthetic Genes on the Properties of Endosperm Starch in Rice.Rice (New York, N.Y.) · 2022Review
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Authors and funding
9 authors at 4 institutions in 1 country.
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Abstract
key messageMutation of the BEIIb gene in an isa1 mutant background mitigates the negative effect of the ISA1 mutation on grain filling, and facilitates recovery of amyloplast formation in rice endosperm. In this study, the effect of branching enzyme IIb and isoamylase 1 deficiency on starch properties was demonstrated using high resistant starch rice lines, Chikushi-kona 85 and EM129. Both lines harbored a mutation in the BEIIb and ISA1 genes and showed no BEIIb and ISA1 activity, implying that both lines are beIIb isa1 double mutants. The amylopectin long chain and apparent amylose content of both mutant lines were higher than those of the wild-type. While both mutants contained loosely packed, round starch grains, a trait specific to beIIb mutants, they also showed collapsed starch grains at the center of the endosperm, a property specific to isa1 mutants. Furthermore, beIIb isa1 double mutant F
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