γ-聚谷氨酸在农田系统应用的研究进展及展望  

The Application of Poly-γGlutamic Acid in Agriculture:A Review

作　　者：史文娟[1] 王培华 林凤妹 李曼[1] 王瀚[1] SHI Wenjuan;WANG Peihua;LIN Fengmei;LI Man;WANG Han(State Key Laboratory of Eco-hyraulics in Northwest Arid Region of China,Xi’an University of Technology,Xi’an 710048,China)

机构地区：[1]西安理工大学省部共建西北旱区生态水利国家重点实验室,西安710048

出　　处：《灌溉排水学报》2022年第5期1-7,共7页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(42077011)。

摘　　要：聚谷氨酸(Poly-γ-glutamic acid,简称γ-PGA)作为一种新型的“环境友好型”高分子生物材料,由于自身良好的吸水性及缓释性,且其降解产物无毒、可食用,因此已经在化妆品、食品、医药卫生等领域得以广泛的应用。近年来的研究证实γ-PGA在农业领域也显示出其巨大的潜力和广阔的应用前景。本文以γ-PGA在农田系统的应用为切入点,重点总结分析了γ-PGA对土壤理化生特性的调控作用以及保水保肥效果,评述了γ-PGA对作物生长发育、养分吸收以及生理特性指标方面的影响,浅谈了γ-PGA及其降解产物对土壤及作物的影响。在系统分析和评价γ-PGA在农田系统应用研究进展的基础上,提出了目前研究面临的挑战,并对其需进一步深入研究的问题进行了展望,为γ-PGA在农田系统的进一步研究和推广应用奠定基础。Poly-γ-glutamic acid(γ-PGA)is an environment-friendly polymeric biomaterial with good water absorption and slow-release.Its metabolites are non-toxic and edible,and it has hence been widely used in a wide range of fields including cosmetics,food and medicine.Its application in agriculture is mainly as a soil conditioner to improve the ability of soil to retain water,as well as a fertilizer synergistic agent.Studies in recent years have concluded thatγ-PGA has a potential application in many areas in agricultural production.In this paper,we reviewed its application as a soil conditioner to improve water bioavailability.We reviewed previous studies on the effects ofγ-PGA on physicochemical and biological properties of soil,fertilizer leaching and adsorption,the ultimate crop growth and development,as well as nutrient absorption and physiological traits of different crops.We also outline the existing research challenges and the prospects ofγ-PGA in its application in agricultural production.

关 键 词：Γ-PGA 农业应用 研究进展 

分 类 号：S156[农业科学—土壤学]