Certain strains of root-colonizing fluorescent Pseudomonas spp. produce phenazines, a class of antifungal metabolites that can provide protection against various soilborne root pathogens. Despite the fact that the phenazine biosynthetic locus is highly conserved among fluorescent Pseudomonas spp., individual strains differ in the range of phenazine compounds they produce. This study focuses on ...

Plant-colonizing fungi secrete a cocktail of effector proteins during colonization. After secretion, some these effectors are delivered into plant cells to directly dampen the immune system or redirect host processes benefitting fungal growth. Other function in apoplastic space either as released modulating activity enzymes associated with defense bound cell wall. For such wall–bound effectors,...

BACKGROUND AND PURPOSE Limited information is available regarding the role Panton-Valentine leukocidin (PVL) plays in methicillin-susceptible Staphylococcus aureus (MSSA). In this study, we compared the frequency of the PVL gene between MSSA strains isolated from patients with MSSA infections and MSSA strains isolated from patients with evidence of MSSA nasal colonization. We also explored the ...

UNLABELLED Streptococcus pneumoniae is a common human nasopharyngeal commensal colonizing 10% to 40% of healthy individuals, depending on age. Despite a low invasive disease rate, widespread carriage ensures that infection occurs often enough to make S. pneumoniae a leading bacterial cause of respiratory disease worldwide. However, the mechanisms behind transition from asymptomatic colonization...

The dodder plant Cuscuta reflexa Roxb. is an angiospermic leafless parasitic plant belonging to the family Cuscutaceae is abundantly found colonizing certain plant species in the premises of Manas Biosphere Reserve (MBR) and nearby area. Ten (10) angiospermic host plants in total of the above parasite were recognized. Based on the field inspection most of the numbers of patches were recorded in...

BACKGROUND AND OBJECTIVE: Candida albicans infection is a problem of growing clinical importance, particularly in immunocompromised populations. This study aimed to investigate the inhibitory effect of carvacrol on the hyphae formation and expression of C. albicans HWP1. METHODS: This cross-sectional study was done over a 6-month period in 2016-2017. Vaginal, mouth and  skin surface swabs were...

Abstract Plant invasion is one of the most serious threats to ecosystems worldwide. When invasive plants with ability clonal growth invading or colonizing in new habitat, their interconnected ramets may suffer from heterogeneous light. Effects integration on allelopathy are poorly understood under light conditions. To investigate effects plant Wedelia trilobata conditions, a pot experiment was ...

BACKGROUND AND AIMS Variation in mating patterns may be particularly evident in colonizing species because they commonly experience wide variation in plant density. Here, the role of density for the mating system of Ambrosia artemisiifolia (common ragweed), a wind-pollinated annual colonizing species previously reported as self-compatible, is explored. METHODS The effect of population density...

Bacterial species concepts are controversial. More widely accepted is the need to understand how differences in gene content and sequence lead to ecological divergence. To address this relationship in ecosystem context, we investigated links between genotype and ecology of two genotypic groups of Leptospirillum group II bacteria in comprehensively characterized, natural acidophilic biofilm comm...