Abstract
.Determine the type of bacterial contamination of seed corn. Samples were collected from corn seed cultivation of 58 from important examples. Check the bacterial contamination of Pantoea ananatis discrimination and infections.Biochemistry and molecule, which isolated from corn seed include 34 isolates. The study of classification and species infections with reaction acute. (HR) on the host plants and not host;The test Koch 's postulation; the physiological and biochemistry; confirm the ITS 16S-23S and nucleotide sequencing. Alternatives to P. Ananatis isolates was compared. The isolates from corn can differentiate from P.Ananatis isolates from other groups have clear, with the analysis of inoculation on different types of cross plant (rice, Liu Eucalyptus, cassava,Onion and melon) and the sequence of gene YgbK which found that 25 isolates will cause disease only on plant corn only, while the other 9 isolates The plant can cause disease on another type of test with, it may be divided into 4 infection groups, one 1.(12 isolates) group 2 can cause disease on the onion with (7 isolates) group 3 cause disease in both onion and melon (12 AI SEO methacrylate) and the 4 pathogens on melon. (3 isolates) as P.Ananatis group isolates. No other cause disease on corn (pineapple and Eucalyptus) when developing the private เมอร์ตรวจสอบ gene YgbK found DNA bar. The size 596 BP can happen is specific to P.Ananatis in the corn 34 isolates. This is a specific primer Smyrna tool to help track the outbreak of P.Ananatis isolates corn seed quickly accurate. The show that plant diseases caused by bacteria from the corn seed that is P.Ananatis which should have the identification and 4 group is races substances with a specific gene analysis as well as other more AVR gene. Related next
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