Filamentous bacteriophages have very strict host specificities. Experiments were performed to investigate whether the A protein of the filamentous phage Cf, which infects Xanthomonas campestris pv. citri but not X. campestris pv. oryzae, is involved in determining Cf's host specificity. The gene encoding the A protein of Cf was cloned and expressed in X. campestris pv. citri. The genomic DNA of...

The phytotoxin and polyketide antibiotic albicidin produced by Xanthomonas albilineans is a highly potent DNA gyrase inhibitor. Low yields of albicidin production have slowed studies of its chemical structure. Heterologous expression of albicidin biosynthetic genes in X. axonopodis pv. vesicatoria resulted in a sixfold increase in albicidin production, offering promising strategies for engineer...

The importance of the citrus crops is recognized throughout world. Despite tremendous advancements in agricultural technology, fruit production still considered a significant challenge. Various biotic factors have trampled down rate Citrus many places. Among them, canker caused by Xanthomonas axonopodis pv. citri (Xac) and (Xcc) great importance. Infection Xac leads to lesion development leaves...

A citricultura brasileira é de suma importância econômica para o país, porém está vulnerável a algumas pragas e doenças que afetam sua produtividade. Dentre estes, destaca-se principalmente cancro cítrico causado pela bactéria Xanthomonas axonopodis pv citri. Como alerta, Ministério da Agricultura, Pecuária Abastecimento, em ofício circular nº 11/2022, informa apenas estabelecimentos habilitado...

SUMMARY In Gram-negative bacteria a typical quorum sensing (QS) system usually involves the production and response to acylated homoserine lactones (AHLs). An AHL QS system is most commonly mediated by a LuxI family AHL synthase and a LuxR family AHL response regulator. This study reports for the first time the presence of a LuxR family-type regulator in Xanthomonas oryzae pv. oryzae (Xoo), whi...

Many Xanthomonas bacteria use transcription activator-like effector (TALE) proteins to activate plant disease susceptibility (S) genes, and this activation contributes to disease. We recently reported that rice basal transcription factor IIA gamma subunit, OsTFIIAγ5, is hijacked by TALE-carrying Xanthomonas oryzae infecting the plants. However, whether TFIIAγs are also involved in TALE-carrying...

The genomic sequence was determined for Xanthomonas axonopodis pv. glycines strain 12609, isolated in Taiwan. Based on the genome sequence, we predicted the encoded genes, rRNA, tRNA, a plasmid sequence, secretion systems, cyclic GMP- and cyclic di-GMP-mediated pathways, and the gene cluster rpfABCHGDE (regulation of pathogenicity factor).