Citrus bacterial spot (CBS), caused by Xanthomonas campestris pv. citrumelo, produces unsightly blemishes on leaves and stems of nursery plants that may affect their mar ket value. In simulated nurseries, Swingle citrumelo and 'Ruby red' grapefruit infected with X. c. citrumelo were treated with combinations of defoliation and sprays of copper ammonium complex (CAC) to control CBS. Also, Swingl...

Among Citrus species, the sweet orange (Citrus sinensis (L.) Osbeck) is most important in terms of production volumes and cultivated areas. Oranges are particularly appreciated for organoleptic characteristics high nutraceutical value fruits (thanks especially to their content antioxidants). Recent advances citrus genetic genomic resources, such as release reference genomes several cultivars, h...

Abstract Citrus tristeza virus (CTV) is a that already caused great losses in citrus producing regions. The cell wall of plant cells plays an important role the defence response to viruses. Following several studies indicating enzyme transcripts callose synthase 7 ( c alS7 ) and xyloglucan endotransglucosylase 9 xth9 are modified during viral infection, transcript expression calS7 isoform x5 x ...