scholarly journals Integration of Filamentous Phage Xf2 DNA into Chromosomal DNA ox Xanthomonas campestris pv. oryzae.

1995 ◽  
Vol 61 (2) ◽  
pp. 127-129 ◽  
Author(s):  
Hiroshi KAMIUNTEN
1999 ◽  
Vol 262 (1) ◽  
pp. 22-26 ◽  
Author(s):  
W.-C. Su ◽  
S.-Y. Tung ◽  
M.-K. Yang ◽  
T.-T. Kuo

2005 ◽  
Vol 51 (7) ◽  
pp. 575-581 ◽  
Author(s):  
Subhadeep Chatterjee ◽  
Ramesh V Sonti

Xanthomonas oryzae pv. oryzae causes bacterial leaf blight, a serious disease of rice. We have identified a Tn5-induced virulence-deficient mutant (BXO1704) of X. oryzae pv. oryzae. The BXO1704 mutant exhibited growth deficiency in minimal medium but was proficient in inducing a hypersensitive response in a non-host tomato plant. Sequence analysis of the chromosomal DNA flanking the Tn5 insertion indicated that the Tn5 insertion is in the purH gene, which is highly homologous to purH genes of other closely related plant pathogenic bacteria Xanthomonas axonopodis pv. citri and Xanthomonas campestris pv. campestris. Purine supplementation reversed the growth deficiency of BXO1704 in minimal medium. These results suggest that the virulence deficiency of BXO1704 may be due to the inability to use sufficient purine in the host.Key words: auxotroph, plant pathogen, resistance.


Sign in / Sign up

Export Citation Format

Share Document