硼对藜麦抗氧化酶活性的影响  

Effects of Boron on the Antioxidant Enzymes Activity of Quinoa

作　　者：马琦琦 李丽君 王斌[2,3] 刘平 霍晓兰 MA Qi-qi;LI Li-jun;WANG Bin(College of Life Science,Shanxi University,Taiyuan,Shanxi 030006;College of Resources and Environment,Shanxi Agricultural University,Taiyuan,Shanxi 030031;Key Laboratory of Soil Environment and Nutrient Resources of Shanxi Province,Taiyuan,Shanxi 030031)

机构地区：[1]山西大学生命科学学院,山西太原030006 [2]山西农业大学资源环境学院(龙城校区),山西太原030031 [3]山西省土壤环境与养分资源重点实验室,山西太原030031

出　　处：《安徽农业科学》2023年第24期139-143,共5页Journal of Anhui Agricultural Sciences

基　　金：山西省科技成果转化引导专项“旱地藜麦减肥增效集成技术示范推广”(201904D131054);山西省专利推广实施资助专项“晋西北高寒山区藜麦专用肥示范与推广”(2019043)。

摘　　要：为研究硼(B)对藜麦生理特性的影响,进行喷施硼肥盆栽试验。选用3个藜麦品种(晋藜1号、晋藜2号、晋藜3号),在拔节期进行叶面喷施0%(CK)、0.1%(B_(1))、0.2%(B_(2))、0.3%(B_(3))的硼酸溶液50 mL 2次。结果表明,相同生长期内,随着施硼量的增加,藜麦叶片SOD活性逐渐下降,POD活性先升高后降低,CAT活性逐渐升高。相同浓度条件下,随生长期延长,3种酶活性均表现为先升高后降低。在灌浆期,3个藜麦品种SOD活性最高;硼浓度为0.3%时,与对照相比,3个藜麦品种叶片SOD活性分别降低21.24%、15.26%、10.33%。整体来看,3个藜麦品种叶片POD活性在抽穗期最高;硼浓度为0.3%时,与对照相比,3个藜麦品种叶片POD活性分别提高-3.99%、-5.21%、5.28%。3个藜麦品种叶片CAT活性在灌浆期最高;硼浓度为0.3%时,与对照相比,3个藜麦品种叶片CAT活性分别提高25.31%、26.19%、29.48%。说明施硼可以调节藜麦抗氧化酶水平,提高藜麦的抗逆性,缓解缺硼对藜麦生长造成的不利影响。总体来看,当硼浓度为0.3%时,3个藜麦品种生理特性良好。实际生产中,应选用0.3%的硼较合适。To evaluate the impact of boron(B)on the antioxidant enzymes(SOD,POD and CAT)in quinoa leaves,a pot experiment was conducted.In this experiment,three varieties of quinoa(Jinli No.1,Jinli No.2 and Jinli No.3)were selected,and quinoa leaves surfaces were treated with a spray containing 0%(CK),0.1%(B_(1)),0.2%(B_(2)),and 0.3%(B_(3))of B for each variety quinoa for 2 times at elongation period.The results indicated that the stress resistance of quinoa improved with different boron.The variation of SOD,POD and CAT activities were observed in response to different boron levels.At the same growing period,the SOD activity in the quinoa leaves decreased,the POD activity first increased and then decreased,and the CAT activity increased with the increasing boron concentrations.At the same boron concentration,with the extension of the growing period,these antioxidant enzymes first increased and then decreased.The SOD activities in the three varieties of quinoa leaves were the highest in the grouting period,and they were 21.24%,15.26%and 10.33%lower at 0.3%B than that of CK,respectively.On the whole,the POD activities in the three varieties of quinoa leaves were the highest in the heading period,and they increased by-3.99%,-5.21%and 5.28%at 0.3%B than that of CK,respectively.The CAT activity in the three varieties quinoa leaves was the highest in the grouting period,and the CAT activity at 0.3%B were 25.31%,26.19%and 29.48%higher than that of CK,respectively.At 0.3%B treatment,the SOD and POD activity in the three types of quinoa leaves were lower than those of CK,while CAT activity was higher.Boron was helpful to regulate the antioxidant enzyme level,remove reactive oxygen species and alleviate the adverse effects of boron deficiency on the growth of quinoa.The physiological characteristics in the three types of quinoa leaves at 0.3%B worked best.Above all,in actual production,0.3%B was the best choice.

关 键 词：藜麦 硼 超氧化物歧化酶 过氧化物酶活性 过氧化氢酶活性 

分 类 号：S143.7[农业科学—肥料学]