| molecular characterisation of xanthomonas strains isolated from aroids in mauritius. | mauritius is one of the largest world producers of anthurium cut flowers but outbreaks of bacterial blight have never been reported on the island. this work was about the characterisation and identification of bacterial strains isolated from anthurium andreanum, dieffenbachia maculata and aglaonema simplex in mauritius. fifteen strains, that showed the morphological properties of xanthomonas on conventional media, were tested on two semi-selective media (esculin-trehalose and cellobiose-starch). ... | 2005 | 15997710 |
| specific detection of xanthomonas axonopodis pv. dieffenbachiae in anthurium (anthurium andreanum) tissues by nested pcr. | efficient control of xanthomonas axonopodis pv. dieffenbachiae, the causal agent of anthurium bacterial blight, requires a sensitive and reliable diagnostic tool. a nested pcr test was developed from a sequence-characterized amplified region marker identified by randomly amplified polymorphic dna pcr for the detection of x. axonopodis pv. dieffenbachiae. serological and pathogenicity tests were performed concurrently with the nested pcr test with a large collection of x. axonopodis pv. dieffenba ... | 2006 | 16461651 |
| genetic basis of resistance to systemic infection by xanthomonas axonopodis pv. dieffenbachiae in anthurium. | the genetic basis of systemic resistance to bacterial blight disease (blight) of anthurium (anthurium andraeanum) caused by xanthomonas axonopodis pv. dieffenbachiae was investigated in progenies of 53 crosses involving 31 parent cultivars using segregation analysis. inoculation of parents and progenies was achieved by injecting the petiole base of the most recent fully expanded leaf with 100 microl of 10(9) colony forming units per ml of the blight pathogen (strain x4gfp) transformed with the g ... | 2008 | 18944190 |
| a new semi-selective medium for the isolation of xanthomonas axonopodis pv. dieffenbachiae, the etiological agent of anthurium bacterial blight. | xanthomonas axonopodis pv. dieffenbachiae causes anthurium blight, which is regarded as the most threatening disease for the anthurium industry worldwide. the bacterium is listed as a quarantine pathogen in several regions, including europe. we evaluated the use of neomycin-cephalexin-trimethoprime-pirmecillinam 4 (nctm4) medium for its isolation. | 2009 | 19453949 |
| biochemical characterization of gram-positive and gram-negative plant-associated bacteria with micro-raman spectroscopy. | raman spectra of gram-positive and gram-negative plant bacteria have been measured with micro-raman spectrometers equipped with 785 and 514.5 nm lasers. the gram-positive bacteria microbacterium testaceum, paenibacillus validus, and clavibacter michiganensis subsp. michiganensis have strong carotenoid bands in the regions 1155-1157 cm(-1) and 1516-1522 cm(-1) that differentiate them from other tested gram-negative bacteria. in the raman spectrum of gram-positive bacteria bacillus megaterium exci ... | 2010 | 20412629 |