ArticlePlant biotechnology journal2022
Plastidic pyruvate dehydrogenase complex E1 component subunit Alpha1 is involved in galactolipid biosynthesis required for amyloplast development in rice.
Article in Plant biotechnology journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 52 citations in OpenAlex.
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- Differential lipid metabolism in beef cattle: A comparative study of high and low residual feed intake bulls.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2025Article
- ELD1 mediates photoperiodic flowering via OsCCA1 alternative splicing and interacts with phytochrome signaling in rice.Nature communications · 2025Article
- A Novel Allelic Variant ofCells · 2025Article
- Phenotypic Analysis and Gene Cloning of Rice Floury Endosperm MutantPlants (Basel, Switzerland) · 2024Article
- Comparative transcriptomic analysis provides insights into the genetic networks regulating oil differential production in oil crops.BMC biology · 2024Article
- Genome-wide association mapping of quantitative trait loci for chalkiness-related traits in rice (Frontiers in genetics · 2024Article
- Unraveling the genetic basis of oil quality in olives: a comparative transcriptome analysis.Frontiers in plant science · 2024Article
- Starch Properties and Morphology of Eight Floury Endosperm Mutants in Rice.Plants (Basel, Switzerland) · 2023Article
- Article
- A large deletion conferring pale green leaves of maize.BMC plant biology · 2023Article
- Genome-Wide Association Study of Rice Grain Shape and Chalkiness in a Worldwide Collection of Xian Accessions.Plants (Basel, Switzerland) · 2023Article
- Transcriptome and Metabolome Analyses Reveals the Pathway and Metabolites of Grain Quality Under Phytochrome B in Rice (Oryza sativa L.).Rice (New York, N.Y.) · 2022Article
- Plastidic pyruvate dehydrogenase complex E1 component subunit Alpha1 is involved in galactolipid biosynthesis required for amyloplast development in rice.Plant biotechnology journal · 2022Article
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Authors and funding
26 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Starch accounts for over 80% of the total dry weight in cereal endosperm and determines the kernel texture and nutritional quality. Amyloplasts, terminally differentiated plastids, are responsible for starch biosynthesis and storage. We screened a series of rice mutants with floury endosperm to clarify the mechanism underlying amyloplast development and starch synthesis. We identified the floury endosperm19 (flo19) mutant which shows opaque of the interior endosperm. Abnormal compound starch grains (SGs) were present in the endosperm cells of the mutant. Molecular cloning revealed that the FLO19 allele encodes a plastid-localized pyruvate dehydrogenase complex E1 component subunit α1 (ptPDC-E1-α1) that is expressed in all rice tissues. In vivo enzyme assays demonstrated that the flo19 mutant showed decreased activity of the plastidic pyruvate dehydrogenase complex. In addition, the amounts of monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG) were much lower in the developing flo19 mutant endosperm, suggesting that FLO19 participates in fatty acid supply for galactolipid biosynthesis in amyloplasts. FLO19 overexpression significantly increased seed size and weight, but did not affect other important agronomic traits, such as panicle length, tiller number and seed setting rate. An analysis of single nucleotide polymorphism data from a panel of rice accessions identified that the pFLO19
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