A5075671158- Plant Virus Research Studies
- Plant and Fungal Interactions Research
- Insect-Plant Interactions and Control
- Plant Disease Management Techniques
- Plant Pathogens and Fungal Diseases
- Viral Infections and Vectors
- Animal Virus Infections Studies
- Research on scale insects
- Fermentation and Sensory Analysis
- Bacteriophages and microbial interactions
- Zoonotic diseases and public health
- Horticultural and Viticultural Research
- Insect symbiosis and bacterial influences
- Insect Resistance and Genetics
- Hemiptera Insect Studies
- CRISPR and Genetic Engineering
- Genomics and Phylogenetic Studies
- Insect and Pesticide Research
- Transgenic Plants and Applications
- Plant Pathogenic Bacteria Studies
Plant & Food Research
2015-2024
University of Auckland
2008-2013
Grapevine leafroll disease (GLD) is one of the most important grapevine viral diseases affecting grapevines worldwide. The impact on vine health, crop yield and quality difficult to assess due a high number variables, but significant economic losses are consistently reported over lifespan vineyard if intervention strategies not implemented. Several viruses from family Closteroviridae associated with GLD. However, leafroll-associated virus 3 (GLRaV-3), type species for genus Ampelovirus,...
Grapevine leafroll-associated virus 3 (GLRaV-3) is the most widely prevalent and economically important of complex RNA viruses associated with grapevine leafroll disease (GLD). Phylogenetic studies have grouped GLRaV-3 isolates into nine different monophyletic groups four supergroups, making a genetically highly diverse species. In addition, new divergent variants been discovered recently around world. Accurate identification an essential component in management control GLRaV-3; however,...
We report the first emaravirus on an endemic plant of Aotearoa New Zealand that is, to best our knowledge, country’s virus characterised associated with indigenous plant. The new-to-science was identified in karaka tree (Corynocarpus laevigatus), and is chlorotic leaf spots, possible feeding sites monophagous gall mite. Of five negative-sense RNA genomic segments were fully sequenced, four (RNA 1–4) had similarity other emaraviruses while 5 no viral proteins. A detection assay developed...
Mycoviruses are highly genetically diverse, can significantly change their fungal host’s phenotype, yet, they generally under-described in genotypic and biological studies. We propose Botrytis cinerea as a model mycovirus system which to develop deeper understanding of epidemiology including diversity, impact, the associated cellular biology host virus interaction. Over 100 mycoviruses have been described this host. B. is an ideal fungus for mycovirology it has tractable characteristics –...
Grapevine leafroll disease (GLD) constrains wine production worldwide. In New Zealand, the main causal agent of GLD is grapevine leafroll-associated virus 3 (GLRaV-3). To control GLD, an integrated management program used and includes removing (roguing) GLRaV-3-infected vines from vineyard. The classical foliar symptoms virus-infected red-berry cultivars are leaves with dark red intervein, green veins, downward rolling margins. Growers use these phenotypic cues to undertake visual symptom...
Despite a high incidence of Citrus tristeza virus (CTV) in citrus New Zealand, viral diseases have had only minor impact on the Zealand industry, largely because use Poncirus trifoliata and hybrid rootstocks derived from this. In August 2007, PCR-based survey for seven viruses was conducted 104 commercial orchard trees that represented range scion species, as well P. × sinensis rootstock, grown imported local budwood or seed case rootstocks, citrus-growing regions Kerikeri, Tauranga,...
Abstract Grapevine leafroll-associated virus 3 (GLRaV-3) is one of the most important viruses grapevine but, despite this, there remain several gaps in our understanding its biology. Because narrow host range - limited to Vitis species and because restricted phloem, GLRaV-3 research has concentrated on epidemiology development detection assays. The recent discovery that can infect Nicotiana benthamiana , a plant model organism, makes new opportunities available for this field. We used...
Grapevine leafroll-associated virus 3 (GLRaV-3), an economically significant pathogen of grapevines, is transmitted by Pseudococcus calceolariae , a mealybug commonly found in New Zealand vineyards. To help inform alternative GLRaV-3 control strategies, this study evaluated the three-way interaction between mealybug, its plant host and virus. The retention transmission P. after access to non- Vitis plants (and non-GLRaV-3 host) White clover ( Trifolium repens L. cv. “Grasslands Huia white...
Abstract Grapevine leafroll disease (GLD) affects grapevines worldwide. The primary causal agent of GLD is grapevine leafroll-associated virus 3 (GLRaV-3), which spreads to uninfected via mealybugs and soft-scale insects. Pseudococcus calceolariae (Hemiptera: Pseudococcidae) a mealybug vector GLRaV-3 in New Zealand. P. also colonizes clovers ( Trifolium spp.) growing naturally as vineyard ground cover. Separating from host could be enhanced by trap plant: an alternative attractive retentive...
Viruses are important constituents of ecosystems, with the capacity to alter host phenotype and performance. However, virus discovery cued by disease symptoms overlooks latent or beneficial viruses, which best detected using targeted detection discovered non-targeted methods, e.g., high-throughput sequencing (HTS). To date, in 64 publications, 701 viruses have been described associated indigenous species Aotearoa New Zealand. were identified birds (189 viruses), bats (13 starfish (4 insects...