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A Simple Defined Medium for the Production of True Diketopiperazines in Xylella fastidiosa and Their Identification by Ultra-Fast Liquid Chromatography-Electrospray Ionization Ion Trap Mass Spectrometry
Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone pepton...
Biotechnological and Agronomic Potential of Endophytic Pink-Pigmented Methylotrophic Methylobacterium spp.
The genus Methylobacterium is composed of pink-pigmented facultative methylotrophic (PPFM) bacteria, which are able to synthesize carotenoids and grow on reduced organic compounds containing one ca...
Breaking dogmas: the plant vascular pathogen Xanthomonas albilineans is able to invade non-vascular tissues despite its reduced genome
Xanthomonas albilineans, the causal agent of sugarcane leaf scald, is missing the Hrp type III secretion system that is used by many Gram-negative bacteria to colonize their host. Until now, this p...
Evidences of Siderophores Synthesis by Grapevine Xylella fastidiosa, Causal Agent of Pierce's Disease, through Instrumental Approaches
Siderophore molecules from grapevine Xylella fastidiosa were investigated. Such metabolites sequester iron, an essential element, from the host, making them a potential factor of pathogenicty. In a...
Leaf-residing Methylobacterium species fix nitrogen and promote biomass and seed production in Jatropha curcas
Background: Jatropha curcas L. (Jatropha) is a potential biodiesel crop that can be cultivated on marginal land because of its strong tolerance to drought and low soil nutrient content. However, se...
Lipid Profile of Xylella fastidiosa Subsp pauca Associated With the Olive Quick Decline Syndrome
Mass spectrometry characterization of endophytic bacterium Curtobacterium sp strain ER1/6 isolated from Citrus sinensis
The bacteria of the genus Curtobacterium are usually seen as plant pathogen, but some species have been identified as endophytes of different crops and could as such present a potential for disease...
Metabolic alterations in the nymphal instars of Diaphorina citri induced by Candidatus Liberibacter asiaticus, the putative pathogen of huanglongbing
Currently, huanglongbing is the most damaging disease of citrus causing huge economic losses. The disease is caused by the Gram- negative bacterium Candidatus Liberibacter asiaticus (CLas). The pat...
Profiling of Disease-Related Metabolites in Grapevine Internode Tissues Infected with Agrobacterium vitis
Green shoot cuttings of 10 different grapevine species were inoculated with Agrobacterium vitis to find disease-related metabolites in the grapevine. Crown galls formed 60 days after inoculation va...
Quantification and localization of hesperidin and rutin in Citrus sinensis grafted on C-limonia after Xylella fastidiosa infection by HPLC-UV and MALDI imaging mass spectrometry
A high performance liquid chromatography-ultraviolet (HPLC-UV) method was developed for quantifying hesperidin and rutin levels in leaves and stems of Citrus limonia, with a good linearity over a r...
Rapid differentiation of graft Citrus sinensis with and without Xylella fastidiosa infection by mass spectrometry
Rationale Xylella fastidiosa causes citrus variegated chlorosis (CVC) in sweet orange trees. A diagnostic method for detecting CVC before the symptoms appear, which would inform citrus producers ...
Sequence/structural analysis of xylem proteome emphasizes pathogenesis related proteins, chitinases and beta-1, 3-glucanases as key players in grapevine defense against Xylella fastidiosa
Xylella fastidiosa, the causative agent of various plant diseases including Pierce's disease in the US, and Citrus Variegated Chlorosis in Brazil, remains a continual source of concern and economic...
