A5067032055- Plant Pathogens and Fungal Diseases
- Plant Pathogenic Bacteria Studies
- Mycorrhizal Fungi and Plant Interactions
- Plant-Microbe Interactions and Immunity
- Fungal Biology and Applications
- Forest Ecology and Biodiversity Studies
- Plant Virus Research Studies
- Genomics and Phylogenetic Studies
- Listeria monocytogenes in Food Safety
- Bacteriophages and microbial interactions
- Bacterial biofilms and quorum sensing
- Essential Oils and Antimicrobial Activity
- Banana Cultivation and Research
- Phytochemistry Medicinal Plant Applications
- Yeasts and Rust Fungi Studies
- Spectroscopy and Chemometric Analyses
- Microbial bioremediation and biosurfactants
- Heavy Metals in Plants
- Aquaculture disease management and microbiota
- Pesticide and Herbicide Environmental Studies
- Biocrusts and Microbial Ecology
- Mosquito-borne diseases and control
- Legume Nitrogen Fixing Symbiosis
- Phytoplasmas and Hemiptera pathogens
- Marine Bivalve and Aquaculture Studies
Plant & Food Research
2015-2024
United States Customs and Border Protection
2023
Ben-Gurion University of the Negev
2005
Pseudomonas syringae pv. actinidiae is a reemerging pathogen which causes bacterial canker of kiwifruit (Actinidia sp.). Since 2008, global outbreak P. has occurred, and in 2010 this was detected New Zealand. The economic impact the development resistance other pathovars against antibiotics copper sprays have led to search for alternative management strategies. We isolated 275 phages, 258 were active actinidiae. Extensive host range testing on actinidiae, pseudomonads, bacteria from orchards...
Abstract Bacterial pathogens are major causes of crop diseases, leading to significant production losses. For instance, kiwifruit canker, caused by the phytopathogen Pseudomonas syringae pv. actinidiae ( Psa ), has posed a global challenge production. Treatment with copper and antibiotics, whilst initially effective, is rise bacterial resistance, requiring new biocontrol approaches. Previously, we isolated group closely related phages potential, which represent environmentally sustainable...
Listeria monocytogenes is a foodborne human pathogen that causes systemic infection, fetal-placental infection in pregnant women causing abortion and stillbirth meningoencephalitis elderly immunocompromised individuals. This study aimed to analyse L. from different sources New Zealand (NZ) compare them with international strains. We used pulsed-field gel electrophoresis (PFGE), multilocus sequence typing (MLST) whole-genome single nucleotide polymorphisms (SNP) the population structure of NZ...
Rhizopogon roseolus Corda (synonym rubescens Tul.), an economically important edible mushroom associated with the Pinaceae (mostly Pinus sp.), has a global distribution resulting from introduction of exotic trees into Southern Hemisphere for plantation forestry. However, marketability R. varies place origin. strains cultivated in New Zealand local carpophores Japanese market are morphologically and biologically distinct those produced Japan consequently considered less valuable. In this...
In this paper, we present the draft sequences of 18 genetically diversePseudomonasstrains isolated from kiwifruit plants in New Zealand and overseas, including a number that are currently not fully characterized. These will aid diagnosis ofPseudomonason for future pest management border security decision-making.
Abstract Bacterial canker of cherry is a major constraint to stone fruit production worldwide, including New Zealand. Six pathovars the bacterium Pseudomonas syringae are known cause bacterial on Prunus species. From those six pathovars, P . s pv. (Pss), morsprunorum race 1 (Psm1) and persicae have been reported as pathogens species in Zealand, Pss Psm1 sweet ( Pr. avium ). On cherry, extensive development cankers gummosis usually observed, particularly during late winter spring, with...
is a ubiquitous foodborne pathogen that results in high rate of mortality sensitive and immunocompromised people. Contamination food with
Abstract Bacterial canker of cherry, caused by Pseudomonas syringae pathovars, is a major constraint to cherry growing in New Zealand. The prevalence strains from orchards Central Otago, the main area for cherries Zealand, was studied, better understand epidemiology disease. spp. isolates were collected symptomatic and asymptomatic tissue 23 commercial 2015. Isolates classified into belonging three different taxonomic groups determining their phylogeny using gltA gene sequence all multilocus...
Abstract Molecular detection of phytopathogens is increasingly being applied to identify regulated organisms at the border in many parts world. However, even with molecular tests, complete phenotyping and identification a strain often time consuming sometimes inconclusive. In this study, leaf‐based pathogenicity test was used separate pseudomonads into two groups, Group A containing pathogens, B saprotrophs. Comparative genomics 56 pseudomonad genomes from different plant hosts (including 29...
To understand the genetics involved in surface attachment and biofilm formation of Listeria monocytogenes. An vitro screen a Himar1 transposon library L. monocytogenes strain 15G01 identified three transposants that produced significantly different levels when compared to wild‐type strain; two mutants exhibited enhanced one less biomass than wild‐type. The mutant mprF::Himar1, which had insertion mprF gene, was selected for further analysis. more densely populated on solid surfaces such as...
ABSTRACT Xanthomonas campestris pv. is a necrotrophic bacterial pathogen of crucifers. We report here the draft genome sequences isolates ICMP 4013 and 21080 from New Zealand. These will facilitate identification race-specific factors in X. campestris.
ABSTRACT Pectobacterium carotovorum subsp. actinidiae is the causal agent of summer canker in kiwifruit plants South Korea. We report here draft genome sequences two P. strains, ICMP 19971 and 19972, which were originally isolated from Actinidia chinensis with symptoms canker. These will aid identification genetic traits associated their unusual capacity to cause help understanding threat these exotic enterobacteria pose New Zealand industry.
Abstract Xylella fastidiosa is a xylem‐limited bacterial plant pathogen transmitted by insect vectors. It infects wide range of species and causes devastating diseases. Botanical gardens are global repositories diversity exposed to local biotic abiotic stresses. We used molecular diagnostic tools for the detection X . in collection New Zealand indigenous plants grown ‐infected Californian area determine if any were infected with this help inform biosecurity responses. To end, 130 comprising...
ABSTRACT Previously genetically characterised strains of Pseudomonas syringae. pv. syringae (Pss), [ P. amygdali morsprunorum ] (Pam, syn. s . race 1) and spp. from New Zealand were for their pathogenicity aggressiveness in plant tissue associated virulence factors. Lesions on detached, Pss‐inoculated immature fruit increased rapidly size and, at 10 days post inoculation (dpi), had larger areas under the disease progress curve (AUDPC) than Pam‐inoculated (48.9 22.0, respectively). Detached...
Abstract Yerba mate ( Ilex paraguariensis ) leaves and twigs are dried used to make mate, a popular herbal tea in Southern Brazil, Argentina, Paraguay Uruguay. In February 2021, yerba with water‐soaked spots, surrounded by chlorotic halos were observed four nurseries at the Ilópolis Arvorezinha counties, Rio Grande do Sul (RS) State, Brazil. Bacterial colonies recovered from symptomatic leaves. Based on morphological characteristics, LOPAT tests DNA sequence of house‐keeping genes, causal...