类芽孢杆菌CBP-2对盐胁迫下3种植物种子萌发及幼苗生长的影响  

The Effects of Paenibacillus sp.CBP-2 on Plant Seed Germination and Seedling Growth under Salt Stress

作　　者：习彦花[1] 林勇 李俊磊 孙立博 吕亚天 魏帅强 程辉彩[1] XI Yanhua;LIN Yong;LI Junlei;SUN Libo;L Yatian;WEI Shuaiqiang;CHENG Huicai(Biology Institute,Hebei Academy of Sciences,Shijiazhuang 050081,China;College of Landscape and Ecology,Hebei University of Engineering,Handan Hebei 056038,China;School of Water Resources and Environment,Hebei GEO University,Shijiazhuang 050031,China)

机构地区：[1]河北省科学院生物研究所,石家庄050081 [2]河北工程大学园林与生态工程学院,河北邯郸056038 [3]河北地质大学水资源与环境学院,石家庄050031

出　　处：《耕作与栽培》2025年第2期37-41,66,共6页Tillage and Cultivation

基　　金：河北省重点研发项目(22322904D;22373803D);河北省科学院高层次人才培养与资助项目(2023G08)。

摘　　要：为明确植物促生菌(Paenibacillus sp.)CBP-2对盐胁迫下作物种子萌发及幼苗生理特性的影响,选取典型园艺作物(小白菜)及粮食作物(玉米、小麦)为试材,采用培养皿滤床催芽法研究l盐胁迫对种子萌发和幼苗生长指标及生理活性的影响。结果表明,与不添加NaCl的对照组相比,在8 g/L NaCl盐胁迫下,小白菜、玉米及小麦幼苗生长被显著抑制;接种适宜浓度CBP-2发酵液可有效缓解盐胁迫对种子和幼苗带来的伤害,菌株CBP-2缓解小白菜、玉米及小麦不同作物盐胁迫效果最佳的发酵液浓度不同,分别为稀释40倍、80倍和80倍。To clarify the effects of silicon releasing Paenibacillus sp.CBP-2 on crop seed germination and seedling physiological characteristics under salt stress,typical horticultural(Chinese cabbage)and grain crop(maize and wheat)varieties were selected as test materials.The effects of inoculating different concentrations of target strains on seed germination,seedling growth indicators,and physiological activity changes under salt stress were studied using a culture dish filter bed germination method.The results showed that compared with the control group without NaCl,the growth of Chinese cabbage,corn,and wheat seedlings was significantly inhibited under 8 g/L NaCl.Inoculating CBP-2 fermentation broth at an appropriate concentration can effectively alleviate the damage caused by salt stress to seeds and seedlings.The optimal fermentation broth concentration for strain CBP-2 to alleviate salt stress in different crops such as Chinese cabbage,corn,and wheat varies,with dilutions of 40 times,80 times,and 80 times,respectively.

关 键 词：类芽孢杆菌 盐胁迫 种子萌发 幼苗生长 

分 类 号：Q945.78[生物学—植物学]