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Control of embryo size by inositol phosphate signaling revealed by big embryo mutants of maize.

Plant physiology - 6 Feb 2026

Suzuki Masaharu, Wu Shan, Sato Yutaka, Jones Noah T, McCarty Donald R

Abstract excerpt

Inositol phosphates (InsP) play diverse signaling roles in regulating development, phosphate sensing, and energy metabolism. Here, we identify 4 maize (Zea mays) mutants, big embryo 2 (bige2), big embryo 3 (bige3), big embryo 4 (bige4), and low phytic acid 1 (lpa1), that show enlargement of the embryo at the expense of endosperm. Bige2 (identical to Lpa2), Bige3 (identical to Lpa3), and Bige4 genes encode...

Topics

Zea mays
Signal Transduction
Mutation
Seeds
Gene Expression Regulation, Plant
Inositol Phosphates
Plant Proteins
Endosperm
Epistasis, Genetic
Gene Expression Profiling

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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PMID: 41554099
DOI: 10.1093/plphys/kiag005

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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