scholarly journals Influence of root exudates on the extracellular proteome of the plant growth-promoting bacterium Bacillus amyloliquefaciens FZB42

Microbiology ◽  
2015 ◽  
Vol 161 (1) ◽  
pp. 131-147 ◽  
Author(s):  
Kinga Kierul ◽  
Birgit Voigt ◽  
Dirk Albrecht ◽  
Xiao-Hua Chen ◽  
Lilia C. Carvalhais ◽  
...  
Keyword(s):  
Plant Growth ◽  
Root Exudates ◽  
Bacillus Amyloliquefaciens ◽  
Extracellular Proteome ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Bacterium Bacillus

scholarly journals Identification of Chemotaxis Compounds in Root Exudates and Their Sensing Chemoreceptors in Plant-Growth-Promoting Rhizobacteria Bacillus amyloliquefaciens SQR9

2018 ◽  
Vol 31 (10) ◽  
pp. 995-1005 ◽  
Author(s):  
Haichao Feng ◽  
Nan Zhang ◽  
Wenbin Du ◽  
Huihui Zhang ◽  
Yunpeng Liu ◽  
...  
Keyword(s):  
Amino Acids ◽  
Plant Growth ◽  
Organic Acids ◽  
Root Exudates ◽  
Bacillus Amyloliquefaciens ◽  
Plant Growth Promoting Rhizobacteria ◽  
Titration Calorimetry ◽  
Chemotaxis Proteins ◽  
Plant Growth Promoting ◽  
Growth Promoting

Chemotaxis-mediated response to root exudates, initiated by sensing-specific ligands through methyl-accepting chemotaxis proteins (MCP), is very important for root colonization and beneficial functions of plant-growth-promoting rhizobacteria (PGPR). Systematic identification of chemoattractants in complex root exudates and their sensing chemoreceptors in PGPR is helpful for enhancing their recruitment and colonization. In this study, 39 chemoattractants and 5 chemorepellents, including amino acids, organic acids, and sugars, were identified from 98 tested components of root exudates for the well-studied PGPR strain Bacillus amyloliquefaciens SQR9. Interestingly, mutant stain SQR9Δ8mcp, with all eight putative chemoreceptors completely deleted, lost the chemotactic responses to those 44 compounds. Gene complementation, chemotaxis assay, and isothermal titration calorimetry analysis revealed that McpA was mainly responsible for sensing organic acids and amino acids, while McpC was mostly for amino acids. These two chemoreceptors may play important roles in the rhizosphere chemotaxis of SQR9. In contrast, the B. amyloliquefaciens-unique chemoreceptor McpR was specifically responsible for arginine, and residues Tyr-78, Thr-131, and Asp-162 were critical for arginine binding. This study not only deepened our insights into PGPR–root interaction but also provided useful information to enhance the rhizosphere chemotaxis mobility and colonization of PGPR, which will promote their application in agricultural production.

scholarly journals Comparative analysis of the complete genome sequence of the plant growth–promoting bacterium Bacillus amyloliquefaciens FZB42

2007 ◽  
Vol 25 (9) ◽  
pp. 1007-1014 ◽  
Author(s):  
Xiao Hua Chen ◽  
Alexandra Koumoutsi ◽  
Romy Scholz ◽  
Andreas Eisenreich ◽  
Kathrin Schneider ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Plant Growth ◽  
Genome Sequence ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Bacillus Amyloliquefaciens ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Bacterium Bacillus

scholarly journals Analysis of plant growth-promoting properties of Bacillus amyloliquefaciens UCMB5113 using Arabidopsis thaliana as host plant

Planta ◽  
2016 ◽  
Vol 245 (1) ◽  
pp. 15-30 ◽  
Author(s):  
Shashidar Asari ◽  
Danuše Tarkowská ◽  
Jakub Rolčík ◽  
Ondřej Novák ◽  
David Velázquez Palmero ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Plant Growth ◽  
Host Plant ◽  
Bacillus Amyloliquefaciens ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Agronomic Biofortification of Cayenne Pepper Cultivars with Plant Growth-Promoting Rhizobacteria and Chili Residue in a Chinese Solar Greenhouse

2021 ◽  
Vol 9 (11) ◽  
pp. 2398
Author(s):  
Ibraheem Olamide Olasupo ◽  
Qiuju Liang ◽  
Chunyi Zhang ◽  
Md Shariful Islam ◽  
Yansu Li ◽  
...  
Keyword(s):  
Plant Growth ◽  
Water Use Efficiency ◽  
Water Use ◽  
Bacillus Amyloliquefaciens ◽  
Net Photosynthesis ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Use Efficiency ◽  
Growth Promoting ◽  
Agronomic Biofortification

Agronomic biofortification of horticultural crops using plant growth-promoting rhizobacteria (PGPR) under crop residue incorporation systems remains largely underexploited. Bacillus subtilis (B1), Bacillus laterosporus (B2), or Bacillus amyloliquefaciens (B3) was inoculated on soil containing chili residue, while chili residue without PGPR (NP) served as the control. Two hybrid long cayenne peppers, succeeding a leaf mustard crop were used in the intensive cultivation study. Net photosynthesis, leaf stomatal conductance, transpiration rate, photosynthetic water use efficiency, shoot and root biomass, and fruit yield were evaluated. Derivatives of folate, minerals, and nitrate contents in the pepper fruits were also assessed. B1 elicited higher net photosynthesis and photosynthetic water use efficiency, while B2 and B3 had higher transpiration rates than B1 and NP. B1 and B3 resulted in 27–36% increase in pepper fruit yield compared to other treatments, whereas B3 produced 24–27.5% and 21.9–27.2% higher 5-methyltetrahydrofolate and total folate contents, respectively, compared to B1 and NP. However, chili residue without PGPR inoculation improved fruit calcium, magnesium, and potassium contents than the inoculated treatments. ‘Xin Xian La 8 F1’ cultivar had higher yield and plant biomass, fruit potassium, total soluble solids, and total folate contents compared to ‘La Gao F1.’ Agronomic biofortification through the synergy of Bacillus amyloliquefaciens and chili residue produced better yield and folate contents with a trade-off in the mineral contents of the greenhouse-grown long cayenne pepper.

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