Plant growth promoting rhizobacteria

Belimov AA et al. (2001) Characterization of plant growth promoting rhizobacteria isolated from polluted soils and containing 1-aminocyclopropane-l-carboxylate deaminase. Can J Microbiol Al 642-652. 

G. Wei, J. W. Kloepper, and S. Tuzun, Induced systemic resistance to cucumber diseases and increased plant growth by plant growth-promoting rhizobacteria under field conditions. Phytopathology 86 22 (1996). 

M. H. Ryder and N. C. McClure. Antibiosis in relation to other mechanisms in biocontrol by rhizobacteria. Proceedings of the Fourth International Workshop on Plant Growth-Promoting Rhizobacteria (A. Ogoshi, K. Kobayashi, Y. Homma. F. Kodama, N. Kondo, and S. Akino, eds.), Sapporo, Japan 1997, pp. 65-72. 

Positive interactions between plant growth-promoting rhizobacteria and... 

Zhinong, Y., Reddy, M.S., Ryu, C.M., Mclnroy, J.A., Wilson, M. and Kloepper, J.W. (2002). Induced systemic protection against tomato late blight elicited by plant growth-promoting rhizobacteria , Phytopathology, 92, 1329-1333. 

The ISR response is triggered by infection of plant roots by specific strains of plant growth-promoting rhizobacteria (PGPRs) and is mediated sequentially by jasmonic acid and ethylene within the plant, but does not result in the accumulation of SA or PRPs [53]. In addition, the ISR response is limited by the ability of the PGPRs to induce ISR in specific plant species and genotypes [54, 55]. Antipathogenic compounds produced by ISR have yet to be identified. The induction of SAR appears to inhibit ISR response. 

Conn, K.L., Nowak, J., Lazarovits, G. A gnotobiotic bioassay for studying interactions between potatoes and plant growth-promoting rhizobacteria. Can J Microbiol 1997 43 801-808. 

De Brito Alvarez, M. A., Gagne S., Antoun., H. Effect of compost on rhizosphere microflora of the tomato and on the incidence of plant growth-promoting rhizobacteria. App Envir Microbiol 1995 61(1) 194-199. 

Jetiyanon, K., Tuzun, S., Kloepper J. Lignification, peroxidase and superoxide dismutases as early plant defence reactions associated with PGPR-mediated induced systemic resistance. In, Plant growth-promoting rhizobacteria present status and future prospects. Kobayashi, K., Homma, Y., Kodama, F., KondoN., Akino, S. eds. OECD Paris, France, 1997 pp. 265-268. 

Tuzun S., Kloepper J.W. Induced systemic resistance by plant growth promoting rhizobacteria. In Improving Plant Productivity with Rhizosphere Bacteria. Ryder, M.H., Stephens, P.M., Bowen, GD. eds. Proceedings of 3rd International Workshop on PGPR. CSIRO, Division of Soils Adelaide. 1994 pp. 104-109. 

Wei, G., Kloepper, J.W., Tuzun, S. Induction of systemic resistance of cucumber to Colletotrichum orbiculare by select strains of plant-growth promoting rhizobacteria. Phytopathology 1991 81 1508-1512. 

Zahir, Z.A., Arshad, M., Frankenberger, Jr., W.T. Plant growth promoting rhizobacteria applications and perspectives in agriculture. Adv Agron 2004 81 97-168. 

Phytohormones and phytotoxins are two major classes of compounds produced and secreted by microorganisms that act on plants. These will be discussed in another chapter (4.10). Recendy, production of 2,3-butanediol (186) and acetoin (187) by two strains of plant growth-promoting rhizobacteria (PGPR) was reported. These compounds promote growth of A. thaliana and trigger induced systemic resistance (ISR) in the plant.108 109... 

Zhuang, X., Chen, J., Shim, H., and Bai, Z. 2007. New advances in plant growth-promoting rhizobacteria for bioremediation. Environment International, 33 406-13. 

Belimov A. A., Safronova V. I., and Mimura T. (2002) Response of spring rape (Brassica napus var. oleifera L.) to inoculation with plant growth promoting rhizobacteria containing 1-aminocyclopropane-l-carboxylate deaminase depends on nutrient status of the plant. Can. J. Microbiol. 48, 189-199. 

Hallman J, Qudt-Hallman A, Mahaffee WF, Kloepper JW. Nematode interactions with endophytic bacteria. In Ogoshi A, Kobayashi K, Homma Y, Kodama F, Kondo N, Akino S, eds. Plant Growth-Promoting Rhizobacteria—Present Status and Future Prospects. Sapporo, Japan Nakanishi, 1997b, pp 243-245. 

J.W. Kloepper, J. Leong, M. Teintze, and M.N. Schroth, Enhanced Plant Growth by Siderophores Produced by Plant Growth-Promoting Rhizobacteria, Nature 286 (1980) 885-886. 

There are two kinds of SAR activator biotic and abiotic. Biotic activators include extracts from plants and microbes. For example, excellent control of powdery mildews was observed by application of extract of Rheynoutria sachalinensis the extracts from Bacillus subtilis have been shown to induce resistance in barley, especially against powdery mildew. It was reported that some plant growth-promoting rhizobacteria may be able to protect plants from foliar diseases when used as a seed treatment or by seed soaking. A strain of Pseudomonas was found to be able to protect cucumber against broad spectrum of diseases. Chitosan and laminarin are two typical resistance-related biotic molecules. Biotic plant activators harpin and ComCat have been commercialized. 

KLOEPPER J.W., LEONG J., TEINTZE M. and SCHROTH M.N. 1980. Enhanced plant growth by siderophores produced by plant growth promoting rhizobacteria. Nature (London), 286, 885-886. 

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