Babalola O O. 2010. Beneficial bacteria of agricultural importance. Biotech Lett, 32: 1559–1570.Brown M E. 1974. Seed and root bacterization. Annu Rev Phytopathol, 12: 181–197.Buchanan R E, Gibbons N E. 1974. Bergey’s Manual of Determinative Bacteriology. Baltimore, USA: Williams and Wilkins Co.Burd G L, Dixon D G, Glick B R. 2000. Plant growth-promoting bacteria that decrease heavy metal toxicity in plants. Can J Microbiol, 46: 237–245.Combes-Meynet E, Pothier J F, Mo?nne-Loccoz Y, Prigent-Combaret C. 2011. The Pseudomonas secondary metabolite 2,4-diacetylphloroglucinol is a signal inducing rhizoplane expression of Azospirillum genes involved in plant-growth promotion. Mol Plant-Microbe Interact, 24: 271–284.Ebenezar J I, Hemamalini R, Gnanamanickam S S. 2012. Genetic diversity of biocontrol strains of Pseudomonas fluorescens producing 2,4-diacetylphloroglucinol from Southern India. J Crop Improv, 26: 228–243.Fenton A M, Stephens P M, Crowley J, O’Callaghan M, O’Gara F. 1992. Exploitation of gene(s) involved in 2,4-diacetylphloroglucinol biosynthesis to confer a new biocontrol capability to a Pseudomonas strain. Appl Environ Microbiol, 58: 3873–3878.Gardener M B, Mavrodi D V, Thomashow L S, Weller D M. 2001. A rapid PCR-based assay characterizing rhizosphere population of 2,4-diacetylphloroglucinol-producing bacteria. Phytopathology, 94: 44–54. Glick B R. 1995. The enhancement of plant growth by free-living bacteria. Can J Microbiol, 41: 109–117.Gomez K A, Gomez A A. 1976. Statistical Procedures for Agricultural Research with Emphasis on Rice. Manila, Philippines: International Rice Research Institute.Gordon S A, Weber R P. 1951. Colorimetric estimation of indole acetic acid. Plant Physiol, 26: 192–195.Howell C R, Stipanovic R D. 1979. Control of Rhizoctonia solani on cotton seedling with Pseudomonas fluorescens and with an antibiotic produced by the bacterium. Phytopathology, 69: 480–482.Hu H B, Xu Y Q, Chen F, Zhang X H, Hur B K. 2005. Isolation and characterization of a new fluorescent Pseudomonas strain that produces both phenazine-1-carboxylic acid and pyoluteorin. J Microbiol Biotech, 15: 86–90.Kauffmann H E, Reddy A P K, Hsieh S P Y, Merc S D. 1973. An improved technique for evaluating resistance of rice variety to Xanthomonas oryzae. Plant Dis Rep, 57: 537–541.Keel C, Schinder U, Maurhofer M, Voisard C, Laviller J, Burger U, Wirthner P, Haas D, Defago G. 1992. Suppression of root diseases by Pseudomonas fluorescens CHA0: Importance of the bacterial secondary metabolite 2,4-diacetylphloroglucinol. Mol Plant-Microbe Interact, 5: 4–13.King E O, Ward M K, Raney D E. 1954. Two simple media for demonstration of pyocyanin and fluorescein. J Lab Clin Med, 44: 301–307.Kloepper J W, Lifshitz R, Zablotowicz R M. 1989. Free living bacterial inocula for enhancing crop productivity. Trends Biotech, 7: 39–44.Kochar M, Upadhyay A, Srivastava S. 2011. Indole-3-acetic acid biosynthesis in the biocontrol strain Pseudomonas fluorescens Psd and plant growth regulation by hormone over expression. Res Microbiol, 162: 426–435.Leveau J H J, Lindow S E. 2005. Utilization of the plant hormone indole-3-acetic acid for growth by Pseudomonas putida strain 1290. Appl Environ Microbiol, 71: 2365–2371.Lindow S E, Desurmont C, Elkins R, Mc Gourty G, Clark E, Brandl M T. 1998. Occurrence of indole-3-acetic acid producing bacteria on pear trees and their association with fruit russet. Phytopathology, 88: 1149–1157.Marques A P G C, Pires C, Moreira H, Rangel A O S S, Castro P M L. 2010. Assessment of the plant growth promotion abilities of six bacterial isolates using Zea mays as indicator plant. Soil Biol Biochem, 42: 1229–1235.Mew T W. 1987. Current status and future prospects of research on bacterial blight of rice. Annu Rev Phytopathol, 25: 359–382.Oberhansli T, Defago G, Haas D. 1991. Indole-3-acetic acid (IAA) synthesis in the biocontrol strain CHA0 of Pseudomonas fluorescens: Role of tryptophan side chain oxidase. J Gen Microbiol, 137: 2273–2279.Patten C L, Glick B R. 2002. Role of Pseudomonas putida indoleacetic acid in development of the host plant root system. Appl Environ Microbiol, 68: 3795–3801.Raaijmakers J M, Weller D M, Thomashow L S. 1997. Frequency of antibiotics-producing Pseudomonas spp. in natural environments. Appl Environ Microbiol, 63: 881–887.Raaijmakers J M, Weller D M. 1998. Natural plant protection by 2,4-diacetylphloroglucinol-producing Pseudomonas spp. in take-all decline soils. Mol Plant-Microbe Interact, 11: 144–152.Shanmugaiah V, Mathivanan N, Varghese B. 2010. Purification, crystal structure and antimicrobial activity of phenazine-1-carboxamide produced by a growth-promoting biocontrol bacterium, Pseudomonas aeruginosa MML2212. J Appl Microbiol, 108: 703–711.Suzuki S, He Y, Oyaizu H. 2003. Indole-3-acetic acid production in Pseudomonas fluorescens HP72 and its association with suppression of creeping bent grass brown patch. Curr Microbiol, 47: 138–143.Tein T M, Gaskins M H, Hubell D H. 1979. Plant growth substances produced by Azospirillum brasilense and their effect on the growth of pearl millet (Pennisetum americanum). Appl Environ Microbiol, 37: 1016–1024.Thomashow L S, Weller D M. 1988. Role of a phenazine antibiotic from Pseudomonas fluorescens 2-97 in biological control of Gaeumannomyces graminis var. tritici. J Bacteriol, 170: 3499–3508.Vijay Krishna Kumar K, Yellareddygari S K R, Reddy M S, Kloepper J W, Lawrence K S, Zhou X G, Sudini H, Groth D E, Krishnam Raju S, Miller M E. 2012. Efficacy of Bacillus subtilis MBI 600 against sheath blight caused by Rhizoctonia solani and on growth and yield of rice. Rice Sci, 19: 55–63.Velusamy P, Gnanamanickam S S. 2003. Plant-associated bacteria, 2,4-diacetylphloroglucinol (DAPG) production and suppression of rice bacterial blight in India. Curr Sci, 85: 1270–1273.Velusamy P, Immanuel J E, Gnanamanickam S S, Thomashow L S. 2006. Biological control of rice bacterial blight by plant-associated bacteria producing 2,4-diacetylphloroglucinol. Can J Microbiol, 52: 56–65.Velusamy P, Gnanamanickam S S. 2008. The effect of bacterial secondary metabolites on bacterial and fungal pathogens of rice. In: Karlovsky P. Secondary Metabolites in Soil Ecology. Berlin: Springer-Verlag: 93–106. |