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Home Georgian Technologies Preparation of a mixture of bacteriophages for prevention and fight against bacterial diseases of rice

Preparation of a mixture of bacteriophages for prevention and fight against bacterial diseases of rice

Description

Prevention and fight against bacterial diseases of agricultural plants are carried out using a mixture of bacteriophages specific to strains of the bacteria. Bacteria of the genus Xanthomonas are plant pathogens that infect many economically significant crops. Rice is affected by X. oryzae leading to extremely large yield losses. For example 20% of rice is infected in Karakalpakia region (Kazakhstan). Bacteriophages are used to treat the following objects: infected seeds, infected plants or plant materials, soil, etc. where the infected plants are growing, irrigating water, soil in other sites, soil supplements.

The goal of the invention is to prevent and treat bacterial diseases of rice The objectives of the invention are to create bactericidal preparations against plant bacterial pathogens, causing rice scorch, The treating preparation is a sterile filtrate of Xanthomonas phagolysate. The composite can be sprayed on vegetating plants or put on affected plants with a swab. The bacteriophages’ composite can also be introduced directly to soil or irrigating water.A polyvalent concentrate of bacteriophage reduces infection of plants with bacterial diseases by 50-90% contributing to increasing the yield.

Innovative Aspect and Main Advantages

The innovation aspect of this invention is to treat bacterial diseases by the mean which is an alternative to chemical bactericidal preparations contaminatin environment. Phage preparations are highly specific for their host bacteria and the process of bacteriophage infection will continue exponentially until all sensitive bacteria are destroyed. It is safe for the plant and environment. The preparation is used for treatment bacterial diseases of rice caused by Xanthomonas-campestris-pv-oryzae

The main advantage of the invention is development of a preparation to treat and prevent bacterial plant diseases by the method which is an alternative to chemical bactericidal preparation contaminating environment. Application of chemical bactericidal preparations enables to control the pathogens, however, frequently the efficacy of their application is rather low and, in addition, these preparations are not safe both for plants and environment. Use of bacteriophage or bacteriophage-based therapies offers some distinct advantages over antibiotic and chemical therapy use. Most phages are highly specific for their host bacteria and the process of bacteriophage infection will continue exponentially until all sensitive bacteria are destroyed. Most important is their safety for the plant and environment.

Areas of Application

The invention is related to agriculture and is possible effective mean for protection of plants from bacterial diseases


Fig. 1 Rice plants (in the lower part – after the treatment with the bacteriophage preparation).

Stage of Development

Field (nature) experiment were made, the technique was tested and is ready for demonstration.

Contact Details

Dr. Tarasi Gabisonia
Organization: G. Eliava Institute of Bacteriophage, microbiology and Virology
Address: Gotua str.3 Tbilisi, Georgia
+99577423225
This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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