Growth promotion of red pepper plug seedlings and the production of gibberellins by Bacillus cereus, Bacillus macroides and Bacillus pumilus
The growth of red pepper plug seedlings was promoted by Bacillus cereus MJ-1, B. macroides CJ-29, and B. pumilus CJ-69 isolated from the rhizosphere. Gibberellins (GAs), a well-known plant growth-promoting hormone, were detected in the culture broth of their rhizobacteria. Among the GAs, the contents of GA1, GA3, GA4, and GA7, physiologically active GAs, were comparatively higher than those of others, suggesting that the growth promoting effect was originated from the GAs. This is the first report on the production of GA5, GA8, GA34, GA44, and GA53 by bacteria.
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- Atzhorn R, Crozier A, Wheeler, CT, Sandberg G (1988) Production of gibberellins and indole-3-acetic acid by Rhizobium phaseoli in relation to nodulation of Phaseolus vulgaris roots. Planta 175: 532–538.Google Scholar
- Bastian F, Cohen A, Piccoli P, Luna V, Baraldi R, Bottini R (1998) Production of indole-3-acetic acid and gibberellins A1 and A3 by Acetobacter diazotrophicus and Herbaspirillum seropedicae in chemically defined media. Plant Growth Regul. 24: 7–11.Google Scholar
- Bottini R, Fulchieri M, Pearce D, Pharis RP (1989) Identification of gibberellins A1, A3, and iso-A3 in cultures of Azospirillum lipoferum. Plant Physiol. 90: 45–47.Google Scholar
- Gaskin P, MacMillan J (1991) GC-MS of Gibberellins and Related Compounds: Methodology and a Library of Reference Spectra. Cantocks Enterprises, Bristol, UK.Google Scholar
- Gutierrez-Manero FJ, Ramos-Solano B, Probanza A, Mehouachi J, Tadeo FR, Talon M (2001) The plant-growth-promoting rhizobacteria Bacillus pumilis and Bacillus licheniformis produce high amounts of physiologically active gibberellins. Physiol. Plant 111: 206–211.Google Scholar
- Janzen RA, Rood SB, Dormaar JF, McGill WB (1992) Azospirillum brasilense produces gibberellin in pure culture on chemically defined medium and in co-culture on straw. Soil Biol. Biochem. 24: 1061–1064.Google Scholar
- Kloepper JW (1993) Plant growth-promoting rhizobacteria as biological control agents. In: F.B.J. Metting, ed. Soil Microbial Ecology. New York: Marcel Dekker, pp. 255–274.Google Scholar
- Lee IJ, Foster KR, Morgan PW (1998) Effect of gibberellin biosynthesis inhibitors on native gibberellin content, growth and floral initiation in Sorghum bicolor. J. Plant Growth Regul. 17: 185–195.Google Scholar
- MacMillan J (2002) Occurrence of gibberellins in vascular plants, fungi, and bacteria. J. Plant Growth Regul. 20: 387–442.Google Scholar
- Ray PM, Thimann KV (1955) Steps in the oxidation of indoleacetic acid. Science 122: 187–188.Google Scholar
- Takahashi N, Kitamura H, Kawarada A, Seto Y, Takai M, Tamura S, Sumiki Y (1955) Biochemical studies on 'Bakanae' fungus. Part XXXIV. Isolation of gibberellins and their properties. Bull. Agric. Chem. Soc. Japan 19: 267–277.Google Scholar
- Vancura V, Macura R (1961) The effect of root excretions on Azotobacter. Folia Microbiol. 6: 250–259.Google Scholar