The intense use of chemicals for the treatment of plant diseases leads to environmental and health risks. Biological control based on plant growth promoting bacteria is the most reasonable approach for the protection of crops against pathogens. Azospirillum brasilense fixes nitrogen in the soil and promotes the overall crop production. It promotes disease resistance on rice crops and the resistance against development of bacterial diseases. The development of chemical synthesis allows access to the required tetrasaccharide that natural sources are depended on (Mandal, Dhara & Misra, 2014).
Biological plant-growth promoting agents are becoming more of a method for improving crop production and minimize the hazards of chemical fertilities. The development of chemical syntheses ...
... middle of paper ...
...erde, Lerner, Dror, Okon & Burdman, 2009). Disruption of these genes caused Azospirillum brasilense Sp7 to not produce biofilms as effectively. The alterations in the mutants were affected by their altered lipopolysaccahrides and exopolysaccahrides to the wild type strain. Overall, these genes are involved in extracellular polysaccharide biosynthesis.
Overall, the synthesis of the tetrasaccahride as its 2-aminoethyl glycoside corresponded to the O-specific polysaccharide of the lipopolysaccharide of Azospirllum brasilense strain Sp7 was carried out to show why the development of chemical syntheses facilitated the access to this required tetrasaccahride. Following glycosylation, the use of thioglycosides both as a donor and acceptor reduced the number of steps. This plant growth promoting bacterium help to produce vitamins and hormones that promote crop production.
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