Comparison of plant growth-promotion with Pseudomonas aeruginosa and Bacillus subtilis in three vegetables

ABSTRACTBacillus subtilis2C-9B, obtained from the rhizosphere of wild grass, exhibits inhibition against root rot causal pathogens inCapsicum annuum, Pb and Zn tolerance, and plant growth promotion in medium supplemented with Pb. The genome ofB. subtilis2C-9B was sequenced and the draft genome assembled, with a length of 4,215,855 bp and 4,723 coding genes.

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Ameliorating effects of chicken feathers in plant growth promotion activity by a keratinolytic strain of Bacillus subtilis PF1

Bioresources and Bioprocessing ◽

10.1186/s40643-016-0091-y ◽

2016 ◽

Vol 3 (1) ◽

Cited By ~ 12

Author(s):

Khushboo Bhange ◽

Venkatesh Chaturvedi ◽

Renu Bhatt

Keyword(s):

Bacillus Subtilis ◽

Plant Growth ◽

Plant Growth Promotion ◽

Growth Promotion ◽

Chicken Feathers ◽

Promotion Activity

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Multi-metal resistance and plant growth promotion potential of a wastewater bacterium Pseudomonas aeruginosa and its synergistic benefits

Environmental Geochemistry and Health ◽

10.1007/s10653-017-9950-5 ◽

2017 ◽

Vol 39 (6) ◽

pp. 1583-1593 ◽

Cited By ~ 17

Author(s):

Jayanta Kumar Biswas ◽

Monojit Mondal ◽

Jörg Rinklebe ◽

Santosh Kumar Sarkar ◽

Punarbasu Chaudhuri ◽

...

Keyword(s):

Pseudomonas Aeruginosa ◽

Plant Growth ◽

Plant Growth Promotion ◽

Growth Promotion ◽

Metal Resistance

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Genetic and nutritional diversity of Bacillus subtilis isolates demonstrating different aspects related to plant growth promotion

Australian Journal of Crop Science ◽

10.21475/ajcs.20.14.05.p2671 ◽

2020 ◽

pp. 880-888

Author(s):

Bianca de Melo Silveira dos Santos ◽

Maura Santos dos Reis de Andrade Silva ◽

Davy William Hidalgo Chávez ◽

Everlon Cid Rigobelo

Keyword(s):

Bacillus Subtilis ◽

Plant Growth ◽

Plant Growth Promotion ◽

Growth Promotion ◽

Agricultural Practices ◽

Production Costs ◽

Control Treatment ◽

Plant Growth Promoting Bacteria ◽

Plant Growth Promoting ◽

Promote Plant Growth

Currently, agricultural practices have been undergoing intense transformations, imposing major challenges such as maintaining productivity with lower production costs and environmental impacts. One of the alternatives to meet these requirements is the use of plant growth promoting bacteria, including Bacillus subtilis. However, different isolates may express different aspects and levels of plant growth promotion. The present study aimed to verify the genetic and nutritional diversity of eight B. subtilis isolates, demonstrating different aspects and levels of plant growth promotion. Eight B. subtilis isolates were analyzed as to their nutritional diversity by BiologEcoPlate TM kit, genetic diversity by Box-PCR, and a trial in greenhouse conditions. The experimental design in greenhouse trial was completely randomized with 9 treatments and five replicates, resulting in 45 pots. Treatments were eight Bacillus subtilis strains, and a control treatment using plants without bacterial inoculation. Isolates 290 and 287 are genetically similar, while isolates 248 and 263 also showed similarity. Genetic and substrate consumption (carbon) analyses showed differences and similarities among isolates, allowing the distribution of isolates into different groups. It was observed that the isolate with the highest ability to promote plant growth was the only isolate that consumed glycyl-L- glutamic acid. These results open the way for further investigations in an attempt to clarify what are the conditions and / or characteristics required by isolates for the plant growth promotion to be more effective.

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Whole Genome Analysis of Sugarcane Root-Associated Endophyte Pseudomonas aeruginosa B18—A Plant Growth-Promoting Bacterium With Antagonistic Potential Against Sporisorium scitamineum

Frontiers in Microbiology ◽

10.3389/fmicb.2021.628376 ◽

2021 ◽

Vol 12 ◽

Author(s):

Pratiksha Singh ◽

Rajesh Kumar Singh ◽

Dao-Jun Guo ◽

Anjney Sharma ◽

Ram Nageena Singh ◽

...

Keyword(s):

Pseudomonas Aeruginosa ◽

Plant Growth ◽

Plant Growth Promotion ◽

Genome Analysis ◽

Growth Promotion ◽

Rrna Genes ◽

Whole Genome ◽

Whole Genome Analysis ◽

Circular Chromosome ◽

Sporisorium Scitamineum

Sugarcane smut is a significant fungal disease that causes a major loss in sugar yield and quality. In this study, we isolated an endophytic strain B18 from a sugarcane root, which showed plant growth-promotion, hydrolytic enzyme production, antifungal activity against sugarcane pathogens (Sporisorium scitamineum, Ceratocystis paradoxa, Fusarium verticillioides), and the presence of nifH, acdS, and antibiotic genes (hcn, prn, and phCA) under in vitro conditions. BIOLOG(R) phenotypic profiling of B18 established its ability to use various carbon and nitrogen sources and tolerate a range of pH and osmotic and temperature stresses. Whole-genome analysis of B18, identified as Pseudomonas aeruginosa, showed that it consists of a single circular chromosome of 6,490,014 bp with 66.33% GC content. Genome annotation has identified 5,919 protein-coding genes, and 65 tRNA, and 12 rRNA genes. The P. aeruginosa B18 genome encodes genes related to ethylene, nitrogen (nifU, norBCDERQ, gltBDPS, and aatJMPQ), and phosphate (pstABCS and phoBDHRU) metabolism and produce indole-3-acetic acid and siderophores. This also includes genes encoding hydrolases and oxidoreductases, those associated with biocontrol mechanisms (hcnABC, phzA_B, phzDEFGMS, and pchA), colonization (minCDE and lysC), and biofilm formation (efp, hfq, flgBCDEFGHI, and motAB), and those associated with metabolism of secondary metabolites. Collectively, these results suggest a role for P. aeruginosa B18 in plant growth enhancement and biocontrol mechanisms. The P. aeruginosa B18 strain was found to be an efficient colonizer in sugarcane; it can improve growth through modulation of plant hormone production and enhanced host-plant resistance to smut pathogen S. scitamineum in a smut-susceptible sugarcane variety (Yacheng71-374). These biocontrol and plant growth promotion properties of P. aeruginosa B18 area are discussed in this report.

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