- Phytoplasmas and Hemiptera pathogens
- Plant Virus Research Studies
- Cocoa and Sweet Potato Agronomy
- Plant Pathogens and Fungal Diseases
- Plant Pathogenic Bacteria Studies
- Plant and Fungal Interactions Research
- Insect-Plant Interactions and Control
- Banana Cultivation and Research
- Insect symbiosis and bacterial influences
- Mycorrhizal Fungi and Plant Interactions
- Soil Carbon and Nitrogen Dynamics
- Agronomic Practices and Intercropping Systems
- Plant Physiology and Cultivation Studies
- Composting and Vermicomposting Techniques
- Plant Disease Management Techniques
- Plant and animal studies
- Powdery Mildew Fungal Diseases
- Animal Virus Infections Studies
- Mosquito-borne diseases and control
- Agroforestry and silvopastoral systems
- Turfgrass Adaptation and Management
- Phosphorus and nutrient management
- Plant tissue culture and regeneration
- Plant Disease Resistance and Genetics
- Plant Pathogens and Resistance
New South Wales Department of Primary Industries
2014-2024
Fundo de Defesa da Citricultura
2024
Citrus Research International
2017
Stellenbosch University
2017
Australian National University
2017
ARC Centre of Excellence for Plant Success in Nature and Agriculture
2017
The University of Queensland
2017
Zhejiang University
2017
Florida Department of Citrus
2017
University of Florida
2017
High-throughput sequencing (HTS) technologies have revolutionized plant virology through simultaneous detection of mixed viral infections. HTS advances uncovered and improved understanding virus biology, ecology, evolution which is vital for disease management. Plant viruses continue to threaten global agricultural productivity strict quarantine measures are essential prevent the introduction spread virulent around world. The gradual decrease in operational costs, including computational...
The citrus pathogen Phyllosticta citricarpa was first described 117 years ago in Australia; subsequently, from the summer rainfall citrus-growing regions China, Africa, and South America; and, recently, United States. Limited information is available on pathogen's population structure, mode of reproduction, introduction pathways, which were investigated by genotyping 383 isolates representing 12 populations States, Australia, Brazil. Populations genotyped using seven published eight newly...
Abstract Background Several plant-pathogenic bacteria are transmitted by insect vector species that often also act as hosts. In this interface, these encounter plant endophytic, endosymbiotic and other microbes. Here, we used high throughput sequencing to examine the bacterial communities of five different psyllids associated with citrus related plants Rutaceae in Bhutan: Diaphorina citri , communis Cornopsylla rotundiconis Cacopsylla heterogena an unidentified sp. Results The microbiomes...
Viroids occur in plants as swarms of sequence variants clustered around a dominant variant, leading to adoption the term 'quasispecies' describe viroid population an individual host. The composition quasispecies can potentially change according age infection, position leaf or branch canopy, and host species. primary aim this study was investigate concept for citrus VII (CVd-VII), recently discovered member family Pospiviroidae. Three experiments were conducted determine factors affecting...
This collaborative work by over 180 researchers from 40+ countries addresses the challenges posed “phantom agents”—putative pathogenic agents named in literature without supporting data on their existence. Those remain regulatory lists, creating barriers trade and plant certification. Historically identified based solely symptoms, these lack isolates or sequence data, making reliable detection risk assessment impossible. After reviewing 120 such across 10 key genera, we recommend removal...
Little research has been carried out on the agronomic value of compost produced from garden organics for vegetable production. A field experiment was established in Camden, near Sydney, Australia, to (i) evaluate effect production and soil quality relative conventional practice, (ii) compare under high low P status, (iii) monitor changes concentration two treatments farmers’ practice. After three successive crops (broccoli, eggplant cabbage), results indicate that (120 dry t/ha) half-compost...
Abstract Citrus exocortis viroid (CEVd), the causal agent of exocortis, is a pathogen that thought to infect all citrus varieties, although it asymptomatic in most. Symptoms develop on susceptible rootstocks, resulting stunting and yield reduction. To aid detection management CEVd, rapid near-field assay was developed using reverse transcription loop-mediated isothermal amplification (RT-LAMP) for viroids nursery field trees. Over 240 CEVd sequences, including sequence variants from...
Alternative management practices need to be developed improve the sustainability of intensive vegetable production in peri-urban areas. A field trial was established 2005 at Camden, near Sydney, Australia evaluate effect garden organic compost on and soil quality relative conventional practice under low high P status. The comprised seven treatments; (garden organic), (fertiliser poultry manure) a mixture inorganic fertiliser, all replicated P, plus nil control. Compost applied once beginning...
An updated real-time multiplex quantitative polymerase chain reaction (qPCR) assay was designed and validated for the simultaneous detection of three ‘ Candidatus Liberibacter species’ (CLsp), Ca. asiaticus’ (CLas), ‘africanus’ (CLaf), ‘americanus’ (CLam), associated with huanglongbing disease citrus. The based on qPCR published in 2006 by Li et al., considering all available CLsp 16S rRNA gene sequences GenBank MIQE guidelines workflow optimization, which became after 2006. When using...
ISHS I International Symposium on Organic Matter Management and Compost Use in Horticulture CHANGES IN SOIL QUALITY OVER FIVE CONSECUTIVE VEGETABLE CROPS FOLLOWING THE APPLICATION OF GARDEN ORGANICS COMPOST