A5019325691- Insect-Plant Interactions and Control
- Plant Parasitism and Resistance
- Agricultural pest management studies
- Plant Virus Research Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Plant and Fungal Interactions Research
- Marine and coastal ecosystems
- Pesticide and Herbicide Environmental Studies
- Microbial Community Ecology and Physiology
- Microbial bioremediation and biosurfactants
- Plant Pathogenic Bacteria Studies
- Biocrusts and Microbial Ecology
- Insect Resistance and Genetics
- Plant-Microbe Interactions and Immunity
- Insect symbiosis and bacterial influences
- Plant responses to water stress
- Wastewater Treatment and Nitrogen Removal
- Water Quality Monitoring and Analysis
- Toxic Organic Pollutants Impact
- Plant Surface Properties and Treatments
- Viral Infections and Immunology Research
- Microplastics and Plastic Pollution
- Water Quality Monitoring Technologies
- Protist diversity and phylogeny
- Marine Toxins and Detection Methods
University of Ruhuna
2010-2025
The University of Queensland
2015-2018
Agriculture and Food
2016-2018
University of Plymouth
2018
Abstract Background The western flower thrips, Frankliniella occidentalis (Pergande), is a globally invasive pest and plant virus vector on wide array of food, fiber, ornamental crops. underlying genetic mechanisms the processes governing thrips biology, feeding behaviors, ecology, insecticide resistance are largely unknown. To address this gap, we present F. draft genome assembly official gene set. Results We report first sequence for any member insect order Thysanoptera. Benchmarking...
Thrips palmi is a widely distributed major agricultural pest in the tropics and subtropics, causing significant losses cucurbit solanaceous crops through feeding damage transmission of tospoviruses. vector capsicum chlorosis virus (CaCV) Australia. The present understanding biology potential effects CaCV on T. limited. To gain insights into molecular responses to infection, we performed RNA-Seq identify thrips transcripts that are differentially-abundant during infection adults. De-novo...
Background Capsicum chlorosis virus (CaCV) is an emerging pathogen of capsicum, tomato and peanut crops in Australia South-East Asia. Commercial capsicum cultivars with CaCV resistance are not yet available, but identified chinense being introgressed into commercial Bell capsicum. However, our knowledge the molecular mechanisms leading to response infection limited. Therefore, transcriptome expression profiling data provide important resource better understand mechanisms....
Tospoviruses are among the most devastating viruses of horticultural and field crops. Capsicum chlorosis virus (CaCV) has emerged as an important pathogen capsicum tomato in Australia South-east Asia. Present knowledge about CaCV protein functions host cells is lacking. We determined intracellular localization interactions proteins by live plant cell imaging to gain insight into associations viral during infection. Proteins were transiently expressed fusions autofluorescent leaf epidermal...
The majority of bacterial antagonists identified to date are active against Microcystis. Therefore, this study aimed isolate and characterize novel cyanolytic strains antagonistic bloom-forming filamentous cyanobacteria. strain BG-E isolated from the Bandagiriya Wewa in Sri Lanka was as Pseudomonas fluorescens (MZ007859) based on 16S rRNA gene sequencing. showed 82% 73% activity (CA) Pseudanabaena sp. LW2 (MW288948) lonchoides LW1 (MW288940), respectively, after 10 days inoculation. light...
Leek (Allium porrum) has become one of the major leafy vegetable export crops in Sri Lanka during last few years. This year-round crop is cultivated open fields at elevations between 1,000 and 2,000 m on approximately 1,600 ha with a production 27,000 t per year (2). In August 2009, straw-colored spots (2 to 3 mm diameter), surrounded by greenish halo necrotic area, resembling symptoms those caused Iris yellow spot virus (IYSV) were observed leek Kandapola Nuwara Eliya District. Additional...
Soil contaminated with used lubricant oil (ULO) has become an emerging environmental threat. Phytoremediation is a cost effective, environmentally friendly and novel technique great potential for remediation of soils lubricating (ULO). Therefore, the aim this study was to investigate phytoremediation potentials Crotalaria retusa L. Impatiens balsamina ULO soil. A randomized block pot experiment conducted each species under plant house conditions in soil at concentration 5,000 mg kg−1 (0.5%...
ABSTRACT Background The western flower thrips, Frankliniella occidentalis (Pergande), is a globally invasive pest and plant virus vector on wide array of food, fiber ornamental crops. While there are numerous studies centered thrips biology, feeding behaviors, ecology, insecticide resistance, the underlying genetic mechanisms processes governing these areas research largely unknown. To address this gap, we present F. draft genome assembly official gene set. Results We report first sequence...
This study aimed to develop an empirical model predict the spatial distribution of Aphanizomenon using Ridiyagama reservoir in Sri Lanka with a dual-model strategy. In December 2020, bloom was detected high density and chlorophyll-a concentration. We generated set algorithms situ data surface reflectance Sentinel-2 bands on same day linear regression analysis. The concentration better regressed ratio (1 + R665)/(1-R705) derived from B4 B5 reliability (R2 = 0.81, p < 0.001). second developed...
An amendment to this paper has been published and can be accessed via the original article.
<title>Abstract</title> <italic>Peridinium</italic> is a rare but, toxic bloom-forming dinoflagellate in freshwaters. Its effects were reported from several countries including Sri Lanka although not-much attened. In this study, we developed remote sensing-based empirical model to quantify using Maussakelle Reservoir as the model. Since carotenoids are major light-harvesting accessary pigments of and many other dinoflagellates, it serves unique biomarker. Thus, spectral signatures allowed us...
We studied the phytoplankton community structure and their relationship to physicochemical properties of water by selecting five major freshwater reservoirs; Bandagiriya, Kattakaduwa, Lunugamvehera, Ridiyagama, Tissa in Southern dry zone Sri Lanka during declining phase tropical monsoon rainfall (December 2019 January 2020). Fifty-seven species, dominated Cyanophyta (63%), followed Chlorophyta, Bacillariophyta, Euglenophyta were identified morphologically through DNA sequencing. The majority...
Abstract The proliferation of harmful cyanobacterial blooms poses a threat to the ecosystem and human health. Microcystins (MCs) are most frequently detected cyanotoxin released by cyanobacteria, including Microcystis sp. Our study aimed isolate potential MC‐degrading bacteria in Sri Lankan freshwater determine their possible MC‐degradation pathways. Twenty‐two morphologically distinct bacterial strains from 13 bodies were isolated following enrichment assay. MC‐biodegradation assays further...
Microcystins (MCs) and cylindrospermopsin (CYN) are the most abundant toxins produced by cyanobacteria in tropical freshwaters. We studied spatial distribution of MC CYN two multipurpose reservoirs, Mahakanadarawa Nachchaduwa Anuradhapura district Sri Lanka September 2020. Fourteen water quality parameters, phytoplankton composition, chlorophyll-a, concentrations were analyzed triplicate 25 sampling sites from each reservoir. Both reservoirs at hypereutrophic status. Microcystis was dominant...
Tropical Agricultural Research and Extension is a peer-reviewed international scientific journal covering wide range of subject areas in tropical subtropical agriculture published quarterly by the Faculty Agriculture, University Ruhuna, Sri Lanka. The also available on Ruhuna website https://www.agri.ruh.ac.lk/tare/index.htm .
Contamination of soil due to used lubricating oil (ULO) has become a common environmental issue, especially in major cities worldwide. This may affect negatively on overall quality and pose risk biota. Phytoremediation is novel green technological approach, which uses plants remove organic inorganic pollutants from contaminated soil, air water can be usefully clean up ULO soil. Screening plant species with tolerance contamination the most critical initial step phytoremediation. The aim...
Research into cyanobacterial diversity dates back to more than 150 years. Advancement in modern molecular, ultrastructural, ecophysiological and vitro culture techniques broadened our understanding the diversity. Molecular data, especially 16S rRNA gene sequence provide basic criteria for present day taxonomy. As DNA data become available it came notice that morphology-based taxonomic classification is unreliable could not infer evolutionary relationships. Some strains belonging previously...
The pollution of freshwater is a pressing global environmental concern, necessitating effective management strategies for polluted aquatic environments. Bioremediation has emerged as highly promising environmentally friendly approach. However, the selection suitable candidates capable effectively degrading or removing pollutants remains challenging task. introduction live candidates, particularly bacteria, into natural environments also poses its own set difficulties. To address these...