CARBOHYDRATE-MODULATED GENE EXPRESSION IN PLANTS

• K. E. Koch

  Plant Molecular and Cellular Biology Program, Horticultural Sciences Department, University of Florida, Gainesville, Florida 32611

抄録

▪ Abstract  Plant gene responses to changing carbohydrate status can vary markedly. Some genes are induced, some are repressed, and others are minimally affected. As in microorganisms, sugar-sensitive plant genes are part of an ancient system of cellular adjustment to critical nutrient availability. However, in multicellular plants, sugar-regulated expression also provides a mechanism for control of resource distribution among tissues and organs. Carbohydrate depletion upregulates genes for photosynthesis, remobilization, and export, while decreasing mRNAs for storage and utilization. Abundant sugar levels exert opposite effects through a combination of gene repression and induction. Long-term changes in metabolic activity, resource partitioning, and plant form result. Sensitivity of carbohydrate-responsive gene expression to environmental and developmental signals further enhances its potential to aid acclimation. The review addresses the above from molecular to whole-plant levels and considers emerging models for sensing and transducing carbohydrate signals to responsive genes.

収録刊行物

• Annual Review of Plant Physiology and Plant Molecular Biology

  Annual Review of Plant Physiology and Plant Molecular Biology 47 (1), 509-540, 1996-06

  Annual Reviews

キーワード

• General Medicine

詳細情報

• CRID: 1362825895967243264
• NII論文ID: 30022123170
• DOI: 10.1146/annurev.arplant.47.1.509
• ISSN: 10402519
• ISSN: http://id.crossref.org/issn/00664294
• Web Site: https://www.annualreviews.org/doi/pdf/10.1146/annurev.arplant.47.1.509
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