摘要
该研究以构树幼苗为试验材料,采用土培盆栽法,初步研究了外源添加巨大芽孢杆菌(BM1259)对盐胁迫下构树幼苗生长生理特性的影响,以期了解微生物巨大芽孢杆菌对盐胁迫下构树幼苗的缓解作用。研究结果表明:在200 mmol/L NaCl盐胁迫下,外源添加浓度为1×10^(8)CFU/L的BM1259能够促进构树根长、株高和叶面积的增加;提高叶绿素的含量,增强光合效率;显著提高可溶性糖和可溶性蛋白的含量;减少丙二醛的产生以及提高幼苗SOD、POD和CAT抗氧化酶的活性,进而有效缓解盐胁迫对构树幼苗造成的伤害。
The objective of this study was to investigate the effect of Bacillus megaterium(BM1259)on the growth of Broussonetia papyrifera seedling under salt stress.The results showed that the additive of BM1259 at 1×10^(8)CFU/L could increase the root length,plant height and leaf area of Broussonetia papyrifera;enhance the photosynthetic efficiency by increasing the content of chlorophyll;significantly increase the content of soluble sugar and soluble protein,reduce the production of malondialdehyde,and increase the activities of SOD,POD and CAT antioxidant enzymes under salt stress with 200 mmol/L NaCl treatment.This study indicated that BM1259 could effectively alleviate the damage caused by salt stress on Broussonetia papyrifera seedlings.
作者
张宜辉
王琳
陶立
邓蒙蒙
沈雨歆
刘大林
赵国琦
ZHANG Yihui;WANG Lin;TAO Li;DENG Mengmeng;SHEN Yuxin;LIU Dalin;ZHAO Guoqi(Yangzhou University Dairy Farm,Yangzhou 225008,China;Institutes of Agricultural Science and Technology Development,Yangzhou University,Yangzhou 225009,China;College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2021年第S01期40-44,共5页
Environmental Science & Technology
基金
江苏现代农业(奶牛产业)技术体系建设专项[JATS(2020)446]
现代农业(奶牛)产业技术体系建设专项资金(CARS-36)
关键词
巨大芽孢杆菌
构树
盐胁迫
SOD
POD
Bacillus megaterium
Broussonetia papyrifera
salt stress
SOD
POD
