Xanthomonas campestris pv. musacearum: a major constraint to banana, plantain and enset production in central and east Africa over the past decade.

摘要: SUMMARY Taxonomy: Bacteria; Phylum Proteobacteria; Class Gammaproteobacteria; Order Xanthomonadales; Family Xanthomonadaceae; Genus Xanthomonas; currently classified as X. campestris pv. musacearum (Xcm). However, fatty acid methyl esters analysis, genetic and genomic evidence suggest that this pathogen is vasicola resides in a separate pathovar. Isolation detection: Xcm can be isolated on Yeast Peptone Glucose Agar (YPGA), Cellobiose Cephalexin Tryptone Sucrose (YTSA) complemented with 5-flouro-uracil, cephalexin cycloheximide to confer semi-selectivity. also identified using DAC-ELISA, species-specific PCR GspDm primers lateral flow devices detect latent infections. Host range: Causes Xanthomonas wilt plants belonging the Musaceae primarily banana (Musa acuminata), plantain (M. acuminata x balbisiana) enset (Ensete ventricosum). Diversity: There high level of homogeneity within although genome sequencing has revealed two major sublineages. Symptoms: Yellowing wilting leaves, premature fruit ripening dry rot, bacterial exudate from cut stems. Distribution: only been found African countries, viz. Burundi, Ethiopia, Democratic Republic Congo, Kenya, Rwanda, Tanzania Uganda. Ecology epidemiology: transmitted by insects, bats, birds farming implements. Long distance dispersal transportation latently infected into new areas. Management: Management relied cultural practices keep population at tolerable levels. Biotechnology programmes have successful producing resistant plants. deployment such material not yet achieved farmer fields, sustainability transgenic resistance remains addressed. This article protected copyright. All rights reserved.