The complete genome sequences of three Xanthomonas citri strains isolated from lime trees in Texas were found to belong to the Aw group. All carried nearly identical large plasmids with similarity to those of a citrus canker strain from India and to xanthomonads from Africa and Colombia. All three strains harbored unusual pthA homologs.

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...

Citrus canker is a major disease affecting citrus production in Brazil. It's mainly caused by Xanthomonas citri subsp. citri strain 306 pathotype A (Xac). We analysed the differential expression of proteins secreted by wild type Xac and an asymptomatic mutant for hrpB4 (ΔhrpB4) grown in Nutrient Broth (NB) and a medium mimicking growth conditions in the plant (XAM1). This allowed the identifica...

Recent studies have demonstrated that an appropriate light environment is required for the establishment of efficient vegetal resistance responses in several plant-pathogen interactions. The photoreceptors implicated in such responses are mainly those belonging to the phytochrome family. Data obtained from bacterial genome sequences revealed the presence of photosensory proteins of the BLUF (Bl...

Xanthomonas axonopodis pv. citri (Xac) is the phytopathogen responsible for citrus canker, one of the most devastating citrus diseases in the world. A broad range of pathogens is recognized by plants through so-called pathogen-associated molecular patterns (PAMPs), which are highly conserved fragments of pathogenic molecules. In plant pathogenic bacteria, lipopolisaccharyde (LPS) is considered ...

Citrus canker (CC), caused by one of the most destructive subfamilies bacterial phytopathogen Xanthomonas citri subsp. Citri (Xcc), poses a serious threat to significantly important citrus fruit crop grown worldwide. This has been subject ongoing epidemiological and disease management research. Currently, five different forms have identified CC, in which Canker A (Xanthomonas citri) being harmf...

Abstract Citrus vein phloem degeneration (CVPD) is the Indonesian name for Asian form of devastating and incurable citrus disease known internationally as huánglóngbìng. It associated with a phloem-limited pathogen, ‘Candidatus Liberibacter asiaticus’ (CLas) transmitted by Asiatic psyllid (ACP), Diaphorina citri. ACP originated in South Asia but was first observed on 1900 Java to where it may h...