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《Shandong Agricultural Sciences》 2008-06
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Effects of Hydroxypropyl Chitosan on Physiological Function of Wheat Seedlings

AN Cheng-feng1,HAO Qiao-mei2,BI Jian-jie3,YE Bao-xing1(1.College of Life Science,Shandong Agricultural University/State Key Laboratory of Crop Biology,Taian 271018,China;2.Binzhou College of Animal Science and Veterinary Medicine,Binzhou 256618,China;3.College of Agronomy,Shandong Agricultural University,Taian 271018,China)  
After wheat seedlings were sprayed with 0.3% hydroxypropyl chitosan aqueous solution,the activities of nitrate reductase,ribulose-1,5-bisphosphate carboxylase,polyphenol oxidase and superoxide dismutase and the chlorophyll content of wheat seedling leaves from five different periods were measured.The results showed that the activities of nitrate reductase,ribulose-1,5-bisphosphate carboxylase and superoxide dismutase were about 20% and the chlorophyll content about 30% more than those of control;however,polyphenol oxidase activity increased firstly and then declined with the developing of seedlings.In other words,hydroxypropyl chitosan could promote carbon and nitrogen metabolism and regulate the resistance and photosynthesis of wheat seedlings.
【Fund】: 国家高技术研究发展计划(863计划)(2006AA10Z1E9);; 农业部农业结构调整重大技术研究专项(05202202B);; 国家“十一五”科技支撑计划(2006BAD04B01)
【CateGory Index】: S512.11
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