ArticlePlant biotechnology journal2016
Overexpression of GA20-OXIDASE1 impacts plant height, biomass allocation and saccharification efficiency in maize.
Article in Plant biotechnology journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed, 81 citations in OpenAlex.
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- Tomato SlARF5 participate in the flower organ initiation process and control plant height.BMC plant biology · 2024Article
- Paclobutrazol Enhanced Stem Lodging Resistance of Direct-Seeded Rice by Affecting Basal Internode Development.Plants (Basel, Switzerland) · 2024Article
- Integrated Metabolome and Transcriptome Analysis of Gibberellins Mediated the Circadian Rhythm of Leaf Elongation by Regulating Lignin Synthesis in Maize.International journal of molecular sciences · 2024Article
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- Internode Length Is Correlated with GAPlants (Basel, Switzerland) · 2023Article
- Overexpression of 9-International journal of molecular sciences · 2023Article
- Plasticity in the Morphology of Growing Bamboo: A Bayesian Analysis of Exogenous Treatment Effects on Plant Height, Internode Length, and Internode Numbers.Plants (Basel, Switzerland) · 2023Article
- BREEDIT: a multiplex genome editing strategy to improve complex quantitative traits in maize.The Plant cell · 2023Article
- Genetic mapping and functional analysis of a classical tassel branch number mutantFrontiers in plant science · 2023Article
- Molecular Mechanism of Gibberellins in Mesocotyl Elongation Response to Deep-Sowing Stress in Sweet Maize.Current issues in molecular biology · 2022Article
- Modifications of Phytohormone Metabolism Aimed at Stimulation of Plant Growth, Improving Their Productivity and Tolerance to Abiotic and Biotic Stress Factors.Plants (Basel, Switzerland) · 2022Review
- Review
- Simple, Fast and Efficient Methods for Analysing the Structural, Ultrastructural and Cellular Components of the Cell Wall.Plants (Basel, Switzerland) · 2022Article
- Enhancing plant growth and biomass production by overexpression of GA20ox gene under control of a root preferential promoter.Transgenic research · 2022Article
- Fine mapping of candidate quantitative trait loci for plant and ear height in a maize nested-association mapping population.Frontiers in plant science · 2022Article
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Increased biomass yield and quality are of great importance for the improvement of feedstock for the biorefinery. For the production of bioethanol, both stem biomass yield and the conversion efficiency of the polysaccharides in the cell wall to fermentable sugars are of relevance. Increasing the endogenous levels of gibberellic acid (GA) by ectopic expression of GA20-OXIDASE1 (GA20-OX1), the rate-limiting step in GA biosynthesis, is known to affect cell division and cell expansion, resulting in larger plants and organs in several plant species. In this study, we examined biomass yield and quality traits of maize plants overexpressing GA20-OX1 (GA20-OX1). GA20-OX1 plants accumulated more vegetative biomass than control plants in greenhouse experiments, but not consistently over two years of field trials. The stems of these plants were longer but also more slender. Investigation of GA20-OX1 biomass quality using biochemical analyses showed the presence of more cellulose, lignin and cell wall residue. Cell wall analysis as well as expression analysis of lignin biosynthetic genes in developing stems revealed that cellulose and lignin were deposited earlier in development. Pretreatment of GA20-OX1 biomass with NaOH resulted in a higher saccharification efficiency per unit of dry weight, in agreement with the higher cellulose content. On the other hand, the cellulose-to-glucose conversion was slower upon HCl or hot-water pretreatment, presumably due to the higher lignin content. This study showed that biomass yield and quality traits can be interconnected, which is important for the development of future breeding strategies to improve lignocellulosic feedstock for bioethanol production.
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