期刊
MICROORGANISMS
卷 10, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/microorganisms10071401
关键词
Zea mays L; microbial inoculants; phosphorus solubilization; phosphorus use efficiency
类别
资金
- Nodusoja (Colombo, Brazil)
This study aimed to select bacterial strains capable of solubilizing phosphorous and promoting maize growth, and to determine their potential application in Brazilian agriculture. The results showed that selected strains significantly increased maize root growth and shoot P content, with Bacillus megaterium and Lysinibacillus sp. exhibiting the highest yield increments.
Increasing phosphorus (P) use efficiency in agricultural systems is urgent and essential to significantly reduce the global demand for this nutrient. Applying phosphate-solubilizing and plant growth-promoting bacteria in the rhizosphere represents a strategy worthy of attention. In this context, the present work aimed to select and validate bacterial strains capable of solubilizing phosphorous and promoting maize growth, aiming to develop a microbial inoculant to be used in Brazilian agriculture. Bacterial strains from the maize rhizosphere were evaluated based on their ability to solubilize phosphate and produce indole acetic acid. Based on these characteristics, 24 strains were selected to be further evaluated under laboratory, greenhouse, and field conditions. Among the selected strains, four (I04, I12, I13, and I17) showed a high potential to increase maize root growth and shoot P content. Strains I13 (Ag87) and I17 (Ag94) were identified by genomic sequencing as Bacillus megaterium and Lysinibacillus sp., respectively. These strains presented superior yield increments relative to the control treatment with 30% P. In addition, combining Ag87 and Ag94 resulted in even higher yield gains, indicating a synergistic effect that could be harnessed in a commercial inoculant for Brazilian agriculture.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据