Azospirillum VI and Related Microorganisms: Genetics — by Johanna Döbereiner, Vera L. D. Baldani, Veronica M. Reis

By Johanna Döbereiner, Vera L. D. Baldani, Veronica M. Reis (auth.), Istvà n Fendrik, Maddalena del Gallo, Jos Vanderleyden, Miklos de Zamaroczy (eds.)

Azospirillum is a plant progress selling rhizobacterium used for inoculation of cereal and forage vegetation. The ebook covers its body structure, ecology, biochemistry, and molecular biology. the main complex molecular thoughts to appreciate the regulatory mechanisms of nitrogen fixation and ammonia assimilation, in addition to the foundation of phytohormone construction, are incorporated. particularly, the identity of novel forms of promoters, particular regulatory circuits, and new regulatory proteins is defined. New insights within the plant progress selling position of the micro organism during the research in their interactions with the plant are provided. additionally mentioned are box functions, permitting the overview of the physiological and agronomic involvement of Azospirillum inoculations.

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Extra resources for Azospirillum VI and Related Microorganisms: Genetics — Physiology — Ecology

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Submitted Moens S, Michiels K, VanderIeyden J (1995) Glycosylation of the flagellin of the polar flagellum of Azospirillum brasilense, a Gram-negative nitrogen-fixing bacterium. Submitted a Moens S, Michiels K, Keijers V, Van Leuven F, VanderIeyden J (1995) Cloning, sequencing and phenotypic analysis of la/I, encoding the flagellum of the lateral flagella of Azospirillum brasilense Sp7.

For field tests defective lysogens were used instead of antibiotic resistant strains. It was found a selectable genetic marker to identify reisolated inocula by phage superinfection. The defective lysogens were constructed and the superinfecting mutant phages characterized in our laboratory. An easy test was developed to measure competition. The strains to be tested were mixed for the inoculation with a Nod+ Nif mutant in different proportions. The symbiosis was carried out in test tubes and the nitrogenase activity measured after six weeks.

Wyn-Jones RG (1981) Salt Tolerance. In: Physiological Processes Limiting Plant Productivity CB Johnston (ed) pp 271-292 Butterworths, London. Young JPW (1993) Molecular phylogeny of rhizobia and their relatives. In: R Palacios, J Mora & WE Newton (eds). New Horizons in Nitrogen Fixation pp 587-592 Kluwer Academic Publishers, Dordrecht. Achievements in the Genetics of Nitrogen Fixation in Hungary Tibor Sik Department of Biotechnology University of Agricultural Sciences H-2103 GOd6llo Hungary Abstract The research development of microbial and molecular genetics is followed by the results on the genetics of Rhizobium meliloti and its phages.

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