Plant Growth-Promoting Effects of Proteus mirabilis Isolated from Tomato (Lycopersicon esculentum Mill) Plants

2021 ◽  
Author(s):  
Natarajan Amaresan ◽  
Velusamy Jayakumar ◽  
Krishna Kumar ◽  
Nooruddin Thajuddin
Keyword(s):  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Proteus Mirabilis ◽  
Lycopersicon Esculentum Mill ◽  
Plant Growth Promoting ◽  
Growth Promoting

Sulfur-oxidizing buffalo dung bacteria enhance growth and yield of Foeniculum vulgare Mill.

2019 ◽  
Vol 65 (5) ◽  
pp. 377-386 ◽  
Author(s):  
Sandhya Dhiman ◽  
Ramesh Chand Dubey ◽  
Dinesh Kumar Maheshwari ◽  
Sandeep Kumar
Keyword(s):  
Plant Growth ◽  
Proteus Mirabilis ◽  
Growth And Yield ◽  
Rrna Gene ◽  
Bacterial Isolates ◽  
Foeniculum Vulgare ◽  
Plant Growth Promoting ◽  
Sulfur Oxidizing ◽  
Growth Promoting ◽  
Buffalo Dung

This study aimed to harness the benefits of sulfur-oxidizing beneficial bacteria from buffalo dung to improve crop yields of Foeniculum vulgare. A total of 61 bacterial isolates were screened from buffalo dung, of which 40 isolates exhibited plant-growth-promoting attributes, such as phosphate solubilization, indole-3-acetic acid production, and hydrogen cyanide production. Of these 40, four bacterial isolates, viz., BUFF12, BUFF14, BUFF23, and BUFF38, were the most potent, having plant-growth-promoting and sulfur-oxidizing properties. These four isolates produced phytase by solubilizing calcium phytate and sodium phytate. They solubilized potassium besides oxidizing the sulfur, causing an increase in soil fertility and crop production. All four isolates were nonpathogenic in nature, as demonstrated by a negative haemolysis test. According to the 16S rRNA gene sequence, the isolate BUFF14 was identified as Proteus mirabilis. Proteus mirabilis BUFF14 maximized seed germination with enhanced vegetative and reproductive parameters during pot and field trial studies, compared with the other isolates.

scholarly journals Biocontrol of Macrophomina phaseolina (Tassi) Goid causing charcoal rot disease in Lycopersicon esculentum L. by using multi species bacterial consortia

2021 ◽  
Vol 22 (3) ◽  
pp. 441-449
Author(s):  
Pradeep Kumar ◽  
Sandeep Kumar ◽  
R.C. Dubey
Keyword(s):  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Growth Promotion ◽  
Macrophomina Phaseolina ◽  
Growth And Yield ◽  
Pseudomonas Sp ◽  
Bacillus Sp ◽  
Bacterial Strains ◽  
Plant Growth Promoting ◽  
Growth Promoting

Plant growth-promoting bacterial strains (LEP1-LEP31) were isolated from rhizosphere of Lycopersicon esculentum L. (Tomato) and screened for their plant growth promoting (PGP) activities. On the basis of morphological, physiological, biochemical, carbon source utilization and molecular characterization, these strains were identified as Pseudomonas sp., Azotobacter sp. and Bacillus sp. For antagonistic activities all the strains were subject to the chitinase activities by the development of clear halo around the inoculated bacterial spots when loaded on chitin (0.2%) supplemented mediumBased on pot and field trial results of individual strains and consortium application, it may be concluded that all the three strains i.e. Pseudomonas sp. LEP17, Azotobacter sp. strain LEP21 and Bacillus sp. strain LEP25 showed plant growth promoting effects. The growth promotion provided by these strains was apparently related to improve shoot and root development, which resulted in better nutrient uptake capability and suppression of plant pathogen. All these three strains were superior in this regard because they provided the best and most consistent effects on growth and yield of L. esculentum. All these strains Pseudomonas sp. LEP17, Azotobacter sp. strain LEP21, Bacillus sp. strain LEP25 and their consortium seems to be suitable for use as a plant growth promoting and improvement of growth and yield

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