A5008253056- Plant Pathogens and Fungal Diseases
- Plant-Microbe Interactions and Immunity
- Plant and fungal interactions
- Plant Pathogenic Bacteria Studies
- Bacterial biofilms and quorum sensing
- Microbial Community Ecology and Physiology
- Acne and Rosacea Treatments and Effects
- Fermentation and Sensory Analysis
- Horticultural and Viticultural Research
- Legume Nitrogen Fixing Symbiosis
- Oral microbiology and periodontitis research
- Yeasts and Rust Fungi Studies
- Mycotoxins in Agriculture and Food
- Genomics and Phylogenetic Studies
- Mycorrhizal Fungi and Plant Interactions
- Antimicrobial Peptides and Activities
- Phytoplasmas and Hemiptera pathogens
- Insect symbiosis and bacterial influences
- Biocrusts and Microbial Ecology
- Plant and animal studies
- Plant and Fungal Interactions Research
- Biochemical and biochemical processes
- Fungal Biology and Applications
- Pharmacological Effects of Natural Compounds
- Plant Parasitism and Resistance
Fondazione Edmund Mach
2012-2019
Massey University
2006-2009
Istituto Zooprofilattico Sperimentale Della Sicilia
2007
Consorzio Catania Ricerche
2002
ABSTRACT The ability to form biofilms is a critical factor in chronic infections by Pseudomonas aeruginosa and has made this bacterium model organism with respect biofilm formation. This study describes new, previously unrecognized role for the human cationic host defense peptide LL-37. In addition its key modulating innate immune response weak antimicrobial activity, LL-37 potently inhibited formation of bacterial vitro. occurred at very low physiologically meaningful concentration 0.5...
ABSTRACT We studied the distribution of fungal endophytes grapevine ( Vitis vinifera L.) plants in a subalpine area northern Italy, where viticulture is high economic relevance. adopted both cultivation-based and cultivation-independent approaches to address how various anthropic nonanthropic factors shape microbial communities. Grapevine stems were harvested from several locations considering organic integrated pest management (IPM) cultivars Merlot Chardonnay. Cultivable fungi isolated...
Microbial plant endophytes are receiving ever-increasing attention as a result of compelling evidence regarding functional interaction with the host plant. communities in plants were recently reported to be influenced by numerous environmental and anthropogenic factors, including soil pest management. In this study we used automated ribosomal intergenic spacer analysis (ARISA) fingerprinting pyrosequencing 16S rDNA assess effect organic production integrated management (IPM) on bacterial...
In the surroundings of a former Pb/Zn smelter in Arnoldstein (Austria) heavy metal concentrations planted crops exceed thresholds for usage as food and feed. The aim was to study effects plant growth-promoting bacterial strain combination with immobilizing soil amendments on growth, uptake microbial community structure. Pot experiments were performed whereby two maize cultivars grown different contaminated soils treatments consisted Burkholderia phytofirmans PsJN without addition gravel...
Bacterial endophytes colonize the inner tissues of host plants through roots or discontinuities on plant surface, including wounds and stomata. Very little is known regarding a possible role insects in acquiring transmitting non- phytopathogenic microorganisms from to plant, especially those that are beneficial symbionts providing protection properties homeostatic stability host. To understand ecological transmission endophytic bacteria, we used freshly hatched nymphs American sap-feeding...
Here, we report the surprising and, to our knowledge, unique example of horizontal interkingdom transfer a human opportunistic pathogen (Propionibacterium acnes) crop plant (the domesticated grapevine Vitis vinifera L.). Humans, like most organisms, have established long-lasting cohabitation with variety microbes, including pathogens and gut-associated bacteria. Studies which investigated dynamics such associations revealed numerous cases bacterial host switches from domestic animals humans....
ABSTRACT The supermucoid Pseudomonas aeruginosa strain PDO300Δ alg8 (pBBR1MCS-5: ) showed strongly impaired attachment compared with the respective mucoid or nonmucoid strains and formed a thicker biofilm large extended mushroom-like microcolonies. Alginate lyase treatment dissolved data suggested that alginate overproduction impairs but plays structural role in microcolony formation.
Endophytes hold great potential for implementing a more sustainable, bio-based agriculture. Here we investigated the differences among populations of endophytic bacteria isolated from wild and domesticated grapevines to improve our understanding how agriculture agro-environment affect communities. Bacterial isolates 88 that shared same climate at least four years were identified representative set 155 strains was characterized 30 features, including quorum sensing-related, enzyme production,...
Endophytic microorganisms asymptomatically colonise plant tissues. Exploring the assembly dynamics of bacterial endophytic communities is essential to understand functioning holobiont and optimise their possible use as biopesticides or biostimulants. The variation in above below-ground organs Vitis vinifera field were studied. To specific effect temperature on communities, a separate experiment was set up where grapevine cuttings grown under controlled conditions at three different...
Plant pathogens and endophytes co-exist often interact with the host plant within its microbial community. The outcome of these interactions may lead to healthy plants through beneficial interactions, or disease inducible production molecules known as virulence factors. Unravelling role in crucially improve our understanding host-associated communities their correlation health. Virulence is a complex network drawing line between has proven be conflictive, strain-level differences niche...
ABSTRACT The function of pslD , which is part the psl operon from Pseudomonas aeruginosa was investigated in this study. involved exopolysaccharide biosynthesis and biofilm formation. An isogenic marker-free deletion mutant P. PAO1 deficient formation differentiated biofilms generated. Expression only gene coding region restored wild-type phenotype. A C-terminal, hexahistidine tag fusion enabled identification PslD. LacZ PhoA translational fusions with PslD indicated that a secreted protein...
Generally, plants are not considered as hosts for human and animal pathogens (HAP). The recent produce-associated outbreaks of food-borne diseases have drawn attention toward significant deficiencies in our understanding the ecology HAP, their potential interkingdom transfer. To examine association microorganisms classified HAP with plants, we surveyed presence distribution bacterial taxa (henceforth HAPT, brevity's sake) endosphere grapevine (Vitis vinifera L.) both plant stems leaves. An...
Postharvest biocontrol activity of CaCl2 and four yeasts against Penicillium digitatum was tested on Tarocco oranges. All organisms (Pichia anomala J121, Pichia guilliermondii NRRL Y18314, Debaryomyces hansenii DBVPG 4025 Saccharomyces cerevisiae P1.6) significantly reduced mould incidence severity. Application enhanced efficacy P. S. cerevisiae, while it did not affect D. hansenii.