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Carbohydrate polymers exhibit great potential as effective elicitors in organic agriculture: A review
Fang Zheng1, Lei Chen1, Peifeng Zhang1
1School of Forestry and Bio-technology, Zhejiang Agriculture and Forestry University, Lin'an, 311300, Zhejiang, China.
Abstract:
Some carbohydrate polymers, usually oligosaccharides or polysaccharides, have great potential as an elicitor of plant defense. However, due to the complexity and diversity of poly- and oligosaccharide structure, the molecular mechanisms and structure-activity relationships of carbohydrate elicitors are still not well understood, which hinders the application of carbohydrate elicitors in agriculture. This review introduces the mechanisms of carbohydrate elicitor perception and signaling in plants. The structure and activity relationships of main poly- and oligosaccharides studied for the control of plant diseases are discussed and summarized. Additionally, the effects of carbohydrate elicitors on the secondary metabolite production are also summarized.
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