Starch and sucrose are the primary products of photosynthesis in the leaves of most plants. Starch represents the major plant storage carbohydrate providing energy during the times of heterotrophic growth. Starch metabolism has been studied extensively, leading to a good knowledge of the numerous enzymes involved. In contrast, understanding of the regulation of starch metabolism is fragmentary. This review summarises briefly the known steps in starch metabolism, highlighting recent discoveries. We also focus on evidence for potential regulatory mechanisms of the enzymes involved. These mechanisms include allosteric regulation by metabolites, redox regulation, protein-protein interactions and reversible protein phosphorylation. Modern systems biology and bioinformatic approaches are uncovering evidence for extensive post-translational protein modifications that may underlie enzyme regulation and identify novel proteins which may be involved in starch metabolism.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.pbi.2010.01.003 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The transcription factor NnNAC100 positively regulates amylopectin biosynthesis by activating NnSBEII in the rhizome of Nelumbo nucifera Gaertn.
Plant Cell Rep
January 2025
School of Horticulture and Gardens, Yangzhou University, Yangzhou, 225009, China.
NnNAC100-NnSBEII modules enhance starch content of the rhizome in Nelumbo nucifera Gaertn. Nelumbo nucifera Gaertn. is a popular aquatic vegetable and traditional Chinese medicine whose quality and taste are mainly determined by the starch.
View Article and Find Full Text PDFGenome-wide analysis of Flavobacterium strain YJ01 demonstrates abundant enzymes synergistically degrade diverse nature carbohydrates.
J Appl Microbiol
January 2025
Pilot Base of Food Microbial Resources Utilization of Hubei Province, College of Life Science and Technology, Wuhan Polytechnic University, Wuhan 430023, China.
Aims: Flavobacterium strains are widely distributed in various environments and generally exhibit specialized roles in the degradation of complex organic substrates. To obtain a deeper understanding of their enzyme profiles, patterns of action on natural carbohydrates degradation, and to mine gene resources for biomass conversion.
Methods And Results: We sequenced the whole genome of a novel carbohydrate-degrading Flavobacterium sp.
The giant genome of lily provides insights into the hybridization of cultivated lilies.
Nat Commun
January 2025
Zhejiang Key Laboratory of Horticultural Crop Quality Improvement, Zhejiang University, Hangzhou, China.
Lilies are economically important monocots known for their ornamental flowers, bulbs, and large genomes. The absence of their genomic information has impeded evolutionary studies and genome-based breeding efforts. Here, we present reference genomes for Lilium sargentiae (lily, 35.
View Article and Find Full Text PDFMarginal response of non-structural carbohydrates and increased biomass in a dominant shrub (Dasiphora fruticosa) to water table decline in a minerotrophic peatland.
Plant Biol (Stuttg)
January 2025
Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, China.
Assessing how dominant peatland species, such as Dasiphora fruticosa, adapt to water table decline is crucial to advance understanding of their growth and survival strategies. Currently, most studies have primarily focused on their growth and biomass, with limited knowledge on the response of non-structural carbohydrates (NSCs) and physiological adaptations of these woody plants under long-term drainage. This study assessed the response of photosynthesis and transpiration rates, biomass, and NSC concentrations (including soluble sugars and starch) in the leaves, stems, and roots of D.
View Article and Find Full Text PDFTranscriptome-based WGCNA reveals the molecular regulation of xylem plasticity in acclimation to drought and rewatering in mulberry.
Front Plant Sci
December 2024
Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China.
Xylem plasticity is important for trees to coordinate hydraulic efficiency and safety under changing soil water availability. However, the physiological and transcriptional regulations of cambium on xylem plasticity are not well understood. In this study, mulberry saplings of drought-resistant Wubu and drought-susceptible Zhongshen1 were subjected to moderate or severe drought stresses for 21 days and subsequently rewatered for 12 days.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!