微藻多糖及其衍生物在农业领域的研究进展

Research Progress of Microalgae Polysaccharides and Their Derivatives in

微藻是单细胞光合生物,具有光合作用效率高、环境适应能力强、生长周期短等特点。微藻多糖是广泛存在于微藻中的一种天然大分子物质,不仅能够促进作物生长,提高作物抗逆性,还可以改善土壤理化性质,调节土壤微生物群落,是植物生物刺激剂的潜在来源。然而,微藻多糖在农业领域并未得到广泛的应用和开发。本文就微藻多糖的合成途径、生化组成、促生和抗逆作用机理及其对土壤改善作用等方面内容进行了综述,以期为微藻多糖的规模化制备及农业应用提供一定的科学理论依据。

Microalgae is a unicellular photosynthetic organism with the characteristics of high photosynthetic efficiency,strong environmental adaptability and short growth cycle.Microalgae polysaccharides are natural macromolecular substances widely existing in microalgae.They can not only promote crop growth,improve crop resistance,but also improve soil physicochemical properties,regulate soil microbial communities.They are also a potential source of plant bio-stimulants.However,microalgae polysaccharides have not been widely used and developed in agriculture.In this paper,the biosynthesis pathway,biochemical composition,growth-promoting and anti-stress mechanism of microalgae polysaccharides and their effects on soil improvement were reviewed.The aim is to provide a scientific and theoretical basis for large-scale preparation and agricultural application of microalgae polysaccharides.