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- Title
Reciprocal regulation of cellulose and lignin biosynthesis by the transcription factor OsTCP19.
- Authors
Ishida, Konan
- Abstract
A study published in the Journal of Experimental Botany examines the relationship between cellulose and lignin biosynthesis in cereal plants and their mechanical strength. The researchers discovered that a transcription factor called OsTCP19 can promote cellulose biosynthesis and inhibit lignin biosynthesis at the same time, resulting in increased resistance to lodging without affecting grain yield. This finding provides a new approach to genetically engineer cereal plants to enhance their mechanical properties and improve sustainable food production. The article also discusses the significance of lodging resistance in typhoon-prone regions like East Asia and provides a list of genes associated with brittle culm mutants, which are related to cell wall properties. The study focuses on the genetic factors that contribute to the mechanical strength of rice plants. It reveals that mutations in genes involved in cell wall biosynthesis, such as CELLULOSE SYNTHASE (CESA), can impact the rigidity of the secondary cell wall. The transcription factor OsTCP19 is identified as a crucial regulator of cellulose and lignin synthesis, with its activation leading to increased cellulose content and decreased lignin content. By manipulating the expression of OsTCP19 in specific tissues, researchers were able to enhance mechanical strength without negatively affecting grain yield. However, further research is necessary to fully understand the underlying mechanisms and the effects of other genes on cell wall synthesis.
- Subjects
EAST Asia; CELLULOSE synthase; TRANSCRIPTION factors; BIOSYNTHESIS; PLANT mechanics; CELLULOSE; LIGNINS
- Publication
Journal of Experimental Botany, 2024, Vol 75, Issue 1, p5
- ISSN
0022-0957
- Publication type
Article
- DOI
10.1093/jxb/erad408