湖北农业科学2025，Vol.64Issue(11)：49-54,65,7.DOI:10.14088/j.cnki.issn0439-8114.2025.11.006
解磷菌SCUEC21菌株的分离及其促生长特性
Isolation of the phosphorus-solubilizing SCUEC21 strain and its growth-promoting characteristics
摘要
Abstract
A phosphorus-solubilizing bacterial strain,designated SCUEC21,was isolated from cigar rhizosphere soil using the phos-phorus dissolution zone primary screening and shake flask secondary screening.The strain was identified as Priestia aryabhattai based on colony morphology,physiological-biochemical characteristics,and 16S rDNA gene sequence analysis.Furthermore,their charac-teristics such as phosphorus-solubilizing,potassium-solubilizing,nitrogen-fixing,indole-3-acetic acid(IAA)-producing,salt-tol-erant,acid-alkali-tolerant,and drought-tolerant abilities were determined.The experimental results showed that the inorganic phos-phorus-solubilizing amount of Priestia aryabhattai SCUEC21 was 47.79 μg/mL,the organic phosphorus-solubilizing amount was 16.20 μg/mL,and the potassium-solubilizing amount was 27.45 μg/mL.Meanwhile,it had the abilities of nitrogen fixation and IAA production,and exhibited certain tolerance to salt,alkali,and drought.Priestia aryabhattai SCUEC21 could effectively increase the content of phosphorus in the soil,which was beneficial to the absorption and utilization of phosphorus by cigars plants,thus providing an excellent germplasm resource for addressing the issue of insufficient phosphorus utilization by plants from soil.关键词
解磷菌/雪茄根际土壤/阿氏普里斯特氏菌(Priestia aryabhattai)/SCUEC21菌株/促生特性Key words
phosphate-solubilizing bacteria/cigar rhizosphere soil/Priestia aryabhattai/SCUEC21 strain/growth promotion charac-teristics分类
农业科技引用本文复制引用
饶雄飞,俸婷,张小宇,吴哲宽,徐玉荣,窦萱,金永鑫,丁婷,李晓华..解磷菌SCUEC21菌株的分离及其促生长特性[J].湖北农业科学,2025,64(11):49-54,65,7.基金项目
中国烟草总公司"雪茄烟叶开发与应用重大专项"接棒挂帅项目(中烟办2022[111]号 （）
110202201039(XJ-10)) （XJ-10）
国家自然科学基金项目(32372809) （32372809）
中南民族大学大学生创新创业训练计划项目(202510524032) （202510524032）
