Particles of fanleaf and yellow mosaic viruses are reported in the lumen of the esophagus of Xiphinerna index. Differences in cuticular morphology suggest differences in charged receptor sites which may offer an explanation for virus location and orderly arrangement.

The location of carbohydrate moieties on the outer cuticle of Xiphinema index was examined by electron microcopy using several different reagents: a) The periodic acid-thiosemicarbazide-silver proteinate reaction was used as a general stain for carbohydrates. In sectioned material it stained the canal system and deeper layers of the cuticle as well as the outer surface, b) Cationized ferritin a...

AIMS To identify enzymes and metabolites in the rhizobacteria filtrates that have a nematicidal effect on Xiphinema index and perform molecular characterization of the strains evaluated. METHODS AND RESULTS A series of four bacteria selected for their nematicidal potential were considered for in vitro, biochemical and molecular studies. The direct effect of the bacterial filtrates was evaluat...

Sugarcane-associated nematodes (Saccharum spp.) can reduce productivity up to 50%. Through the survey, it was possible identify main that occur in a certain region as tool for designing best management and control strategies. The aim of this study characterize population associated with sugarcane North Central, Pioneiro Northwest mesoregion state Paraná, Brazil, quantify nematode genera crop sp...

arabis mosaic virus (armv) belongs to the plant virus genus nepovirus in the family secoviridae. armv is transmitted by several species of the nematode vector in genus xiphinema, and has a very wide natural host range in crop plants and ornamentals.  the objective of this study was to determine the distribution of armv in the vineyards and rose plantations in western and eastern azarbaijan prov...