Altered expression of maize PLASTOCHRON1 enhances biomass and seed yield by extending cell division duration
Copyright policy )Altered expression of maize PLASTOCHRON1 enhances biomass and seed yield by extending cell division duration
AbstractMaize is the highest yielding cereal crop grown worldwide for grain or silage. Here, we show that modulating the expression of the maizePLASTOCHRON1(ZmPLA1) gene, encoding a cytochrome P450 (CYP78A1), results in increased organ growth, seedling vigour, stover biomass and seed yield. The engineered trait is robust as it improves yield in an inbred as well as in a panel of hybrids, at several locations and over multiple seasons in the field. Transcriptome studies, hormone measurements and the expression of the auxin responsive DR5rev:mRFPer marker suggest that PLA1 may function through an increase in auxin. Detailed analysis of growth over time demonstrates that PLA1 stimulates the duration of leaf elongation by maintaining dividing cells in a proliferative, undifferentiated state for a longer period of time. The prolonged duration of growth also compensates for growth rate reduction caused by abiotic stresses.
- Brigham Young University Idaho United States
- Agricultural Research Institute United States
- Iowa State University United States
- Academy of Sciences Library Czech Republic
- Agricultural Research Institute United States
MECHANISM, Time Factors, growth, Science, PROTEIN, mechanism, arabidopsis-thaliana, Zea mays, Article, Cytochrome P-450 Enzyme System, Gene Expression Regulation, Plant, PLANTS, Biomass, LEAF SIZE, GENE-EXPRESSION, Plant Proteins, inference, Indoleacetic Acids, ORGAN SIZE, plants, Gene Expression Profiling, Q, Biology and Life Sciences, CYTOCHROME-P450, Gene Expression Regulation, Developmental, organ size, Plants, Genetically Modified, gene-expression, cytochrome-p450, Plant Leaves, Seedlings, leaf size, Seeds, ARABIDOPSIS-THALIANA, GROWTH, INFERENCE, protein, Cell Division
MECHANISM, Time Factors, growth, Science, PROTEIN, mechanism, arabidopsis-thaliana, Zea mays, Article, Cytochrome P-450 Enzyme System, Gene Expression Regulation, Plant, PLANTS, Biomass, LEAF SIZE, GENE-EXPRESSION, Plant Proteins, inference, Indoleacetic Acids, ORGAN SIZE, plants, Gene Expression Profiling, Q, Biology and Life Sciences, CYTOCHROME-P450, Gene Expression Regulation, Developmental, organ size, Plants, Genetically Modified, gene-expression, cytochrome-p450, Plant Leaves, Seedlings, leaf size, Seeds, ARABIDOPSIS-THALIANA, GROWTH, INFERENCE, protein, Cell Division
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).80 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 1% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 1%
Citations provided by BIP!Popularity provided by BIP!