Leaf scald caused by Xanthomonas albilineans (Xa) is a major bacterial disease in sugarcane that represents threat to the global sugar industry. Little known about population structure and genetic evolution of this pathogen. In study, 39 Xa strains were collected from 6 provinces China. Of these strains, 15 24 isolated Saccharum spp. hybrid S. officinarum plants, respectively. Based on multiloc...

Leishmaniasis is a complex parasitic disease from a taxonomic, clinical and epidemiological point of view. The role of genetic exchanges has been questioned for over twenty years and their recent experimental demonstration along with the identification of interspecific hybrids in natura has revived this debate. After arguing that genetic exchanges were exceptional and did not contribute to Leis...

Bois noir, an economically important disease of grapevine yellows that causes significant economic losses in wine production, is associated with ‘Candidatus Phytoplasma solani’ and transmitted to grapevines by cixiids Hyalesthes obsoletus Reptalus panzeri. Polyphagous planthopper Dictyophara europaea, commonly found natural habitats, harbors phytoplasmas from distinct groups alternative vector ...

Abstract In Montenegro, stone fruit species are grown on intensive and semi-intensive commercial plantations. However, almond production is mainly organized family gardens for household consumption. During two seasons (2017–2018), we surveyed apricot, peach, nectarine, sweet cherry, Japanese plum, orchards the presence of bacterial diseases at different geographical locations in Montenegro. Fro...

The genus Brucella (Mayer and Shaw, 1920) currently consists often species with validly published names. Within most species further differentiation into biovars exists. Genetically, all Brucella species are highly related to each other, exhibiting sequence similarity values of 98% to 100% in aligned regions (core genome). The population structure is clonal. Despite this close genetic relatedne...

We have derived a T cell clone that recognizes and responds to three different types of antigen: self + X (fowl gamma globulin + H-2d), allo-H-2p,b, and minor lymphocyte-stimulating (Mlsa,d) determinants. Anti-TcR mAb and their F(ab')2 and Fab fragments were tested for their capacity to block the response of this clone. When responses were assayed on day 4 or later, addition of KJ16 or F23.1 mA...

AIMS To identify bacteria with high selenium tolerance and reduction capacity for bioremediation of wastewater and nanoselenium particle production. METHODS AND RESULTS A bacterial endophyte was isolated from the selenium hyperaccumulator Stanleya pinnata (Brassicaceae) growing on seleniferous soils in Colorado, USA. Based on fatty acid methyl ester analysis and multi-locus sequence analysis ...

Three endophytic bacterial isolates were obtained in Italy from olive knots caused by Pseudomonas savastanoi pv. savastanoi. Phenotypic tests in combination with 16S rRNA gene sequence analysis indicated a phylogenetic position for these isolates in the genera Erwinia or Pantoea, and revealed two other strains with highly similar 16S rRNA gene sequences (>99 %), CECT 5262 and CECT 5264, obtaine...

Soda lake is hyper alkaline and saline habitat located in closed craters with high evaporation rate. In current study fungal diversity from water and sediment samples of a soda lake (Lonar lake) located in Buldhana district of Maharashtra, India was investigated using extensive culturomics approach and mimicking the natural conditions of Lonar lake in culture media. A total of 104 diverse isola...

The diversity of 71 rhizobial strains belonging to the genus Ensifer, isolated from root nodules of woody legumes growing in southern Ethiopia, was studied using multilocus sequence analysis (MLSA) and phenotypic approaches. Phylogenetic analyses based on core genes revealed that 43 strains were clustered in seven distinct and consistent positions (genospecies I-VII), while another 25 strains w...