辣椒是青海省农业的重要经济作物之一。对青海辣椒内生细菌(endophyticbacteria from capsicum)促生效应的研究,能发挥天然微生物无毒、无污染的优势。本文从青海西宁市苗圃、大通、民和等地区农家种植的辣椒中分离内生芽孢杆菌,共分离了6株菌株,通过回接试验筛选到2株性状比较优良的目标菌株,经鉴定菌株X1为枯草芽孢杆菌(Bacillus subtilis),菌株W1为地衣芽孢杆菌(Bacillus licheniformis),并对辣椒内生芽孢杆菌的生物学特性及促生效应进行了初步研究。
以抗利福平(100μg/ml)为标记,对枯草芽孢杆菌X1菌株在辣椒体内的定殖动态进行测定,结果表明,通过浸种、灌根和涂抹叶片方法接种,该菌株均能在辣椒体内定殖,其中以涂抹叶片接种进入植物体内的菌量最多。用浓度为5×10~6cfu/ml的菌液浸泡辣椒种子24h,出苗后可从辣椒体内分离到大量目标细菌。促生效果试验表明,无论浸种、涂抹叶片或浇灌土壤接种均对辣椒生长表现出明显的促生作用,其中以涂抹叶片法接种效果最好。X1菌株能够进入植物体内传导,该菌在植物体内定殖量的多少与其促生作用呈正相关;菌...
【英文摘要】
The capsicum is an important plant for the agriculture of Qinghai province. Research on endophytic bacteria from capsicum not only lays the foundation of further improving the yields of capsicum in Qinghai province, but also dues to its non-toxic, pure natural advantages. two strains was collected from 6 root nodules from Xining Plant nursery. Datong and Minhe County, Its biological characteristics and plant growth promoting effects with capsicum were preliminarily studied. The results as follows: X1...
| 
点击下列相关研究机构和相关文献作者，可以直接查到这些机构和作者被《中国知识资源总库》收录的其它文献，使您全面了解该机构和该作者的研究动态和历史。
