环境保护科学2025，Vol.51Issue(1)：131-138,8.DOI:10.16803/j.cnki.issn.1004-6216.202405019
释硅真菌Aspergillus niger CA-5的分离鉴定及抗逆促生特性
Isolation,identification,stress resistance and promoting function of the silicon-releasing fungus Aspergillus niger CA-5
摘要
Abstract
Excellent strain resources were extracted from the soil of typical iron tail mining area in Hebei province by selective medium.A highly efficient silicon-releasing fungus CA-5 was obtained through qualitative screening and quantitative determination of silicon-soluble ability.It was identified as Aspergillus niger by culture characteristics,morphological characteristics and ITS molecular biology.At the same time,its ecological adaptability and related growth-promoting ability were measured,and its growth-promoting effect on Chinese cabbage seedlings was verified by indoor pot.The results showed that the amount of silicon-releasing fungus CA-5 on silicon-rich iron tailings could reach 30.03 mg/L.acetic acid(IAA)and ferric carrier were active in acetic acid,salt,acid and drought.The acetic acid was active in acetic acid and acetic acid(IAA).The results showed that inoculation with suitable concentration of CA-5 significantly promoted the increase of Plant height,fresh weight and dry weight of seedlings,significantly increased the relative content of Soil and Plant Analyzer Development(SPAD)in leaves of Chinese cabbage,and significantly improved the tipping phenomenon of plants.The strain of high-efficiency silica-releasing Aspergillus niger CA-5 had the potential to be used as a silica-releasing microbial agent,which could provide a new way to develop a new type of biological silicon fertilizer and help the green ecological restoration of tailings.关键词
释硅真菌/筛选鉴定/黑曲霉/抗逆性/促生Key words
silicon-releasing fungus/screening and identification/Aspergillus niger/resistance/promoting function分类
环境科学引用本文复制引用
习彦花,林勇,李俊磊,吕亚天,孙立博,魏帅强,程辉彩..释硅真菌Aspergillus niger CA-5的分离鉴定及抗逆促生特性[J].环境保护科学,2025,51(1):131-138,8.基金项目
河北省重点研发计划项目(22322904D,22373803D) （22322904D,22373803D）
河北省科学院高层次人才培养项目(2023G06) （2023G06）
