A5074958461- Plant Pathogens and Fungal Diseases
- Plant Disease Resistance and Genetics
- Species Distribution and Climate Change
- Mycotoxins in Agriculture and Food
- Wildlife Ecology and Conservation
- Environmental DNA in Biodiversity Studies
- Genetic Mapping and Diversity in Plants and Animals
- Plant Pathogens and Resistance
- Wheat and Barley Genetics and Pathology
- Genetic diversity and population structure
- Crop Yield and Soil Fertility
- Amphibian and Reptile Biology
- Land Use and Ecosystem Services
- Genetics and Plant Breeding
- Wildlife-Road Interactions and Conservation
- Ecology and Vegetation Dynamics Studies
- Agricultural pest management studies
- Smart Agriculture and AI
- Cancer-related cognitive impairment studies
- Helminth infection and control
- Climate Change Policy and Economics
- Forest Management and Policy
- Microbial infections and disease research
- Medical and Biological Ozone Research
- Parasitic Infections and Diagnostics
University of Southern California
2023
Neurological Surgery
2023
Natural Resources Institute
1995-2001
University of Greenwich
1999-2001
Michigan State University
2001
University of Bristol
2001
University of Reading
1994-1996
University of Nottingham
1990-1994
ABSTRACT Ultrastructural studies of the infection susceptible and resistant cultivars Sorghum bicolor by Colletotrichum sublineolum were conducted. Initial penetration events same on both cultivars. Germ tubes originating from germinated conidia formed globose, melanized appressoria, that penetrated host epidermal cells directly. Appressoria did not produce appressorial cones, but each pore was surrounded an annular wall thickening. Inward deformation cuticle localized changes in staining...
Summary Biodiversity is changing at unprecedented rates, and it increasingly important that these changes are quantified through monitoring programmes. Previous recommendations for developing or enhancing programmes focus either on the end goals, intended use of data, how goals achieved, example volunteer involvement in citizen science, but not both. These rarely prioritized. We used a collaborative approach, involving 52 experts biodiversity UK , to develop list attributes relevance any...
Abstract Many herpetofauna species have been introduced outside of their native range. MtDNA barcoding is regularly used to determine the provenance such populations. The alpine newt has across Netherlands, United Kingdom and Ireland. However, geographical mtDNA structure natural range still incompletely understood certain regions are severely undersampled. We collect sequence data over seven hundred individuals, from both main new insights our extended phylogeography that 1) haplotypes...
summary Cytological and physiological studies were conducted on the infection process of Colietotrichum sublineolum P. Henn. Kabat et Bub. susceptible resistant cultivars Sorghum bicolor (L.) Moench. Compatible interactions characterized by an early biotrophic phase lasting c. 24 h, during which intracellular vesicles primary hyphae colonized epidermal cells. Thinner secondary first observed branching out from after 66 h. These proliferated throughout epidermis into underlying mesophyll...
Isolates of Pseudocercosporella herpotrichoides , causal agent the eyespot disease cereals, are usually classified as W‐type or R‐type on basis differential pathogenicity towards wheat and rye hosts, a distinction often correlated with cultural morphology. Polyacrylamide gel electrophoresis (PAGE) soluble proteins was used to compare 101 isolates spp. including both W‐types R‐types, related species P. anguioides aestiva . Of 16 enzyme activities detected, seven were for pathotypes. Isozyme...
Field studies were conducted at Alupe in western Kenya 1995 and 1996 to evaluate the efficacy of crop species mixtures for management sorghum anthracnose (caused by Colletotrichum sublineolum) leaf blight Exserohilum turcicum). The progress these diseases developing simultaneously on a susceptible cultivar planted inter- or intra-row varying proportions with either maize resistant was monitored. effects host type mixture patterns disease compared parameter estimates derived from fitted...
Abstract Control of breast‐to‐brain metastasis remains an urgent unmet clinical need. While chemotherapies are essential in reducing systemic tumor burden, they have been shown to promote non‐brain metastatic invasiveness and drug‐driven neurocognitive deficits through the formation neurofibrillary tangles (NFT), independently. Now, this study, we investigated effect chemotherapy on brain progression promoting tumor‐mediated NFT. Results show increase brain‐barrier permeability facilitate...
Abstract MtDNA barcoding is regularly applied to determine the provenance of invasive species. Variation in spatial genetic structuring across a species’ range, typically high within glacial refugia and low postglacially colonized areas, influences precision this approach. The palmate newt ( Lissotriton helveticus ) has been introduced north its native range inside Netherlands. We conduct mtDNA try retrace origin localities. A large increase sample size, particularly focusing on temperate...
Abstract Adder ( Vipera berus ) populations are experiencing declines in many countries, including the United Kingdom. Perceptions of adders and other venomous snakes generally negative, making conservation these species a challenge, persecution remains within top five perceived causes for adder Improved understanding attitudes needed to support current efforts. However, ensuring positive continue into future relies on addressing children's loss connection nature, intervention at this early...
Abstract Large-scale biodiversity monitoring remains a challenge in science and policy. ‘Biodiversity Observation Networks’ provide an integrated infrastructure for through timely discovery, access, re-use of data, but their establishment relies on in-depth understanding existing effort. We performed scoping review network analysis to assess the scope available data amphibians reptiles UK catalogue mobilisation information across landscape, thereby highlighting gaps. The portfolio has grown...
‘Vanishing Viper 2019’ was organised in the wake of continuing evidence for declines British populations northern viper or adder (Vipera berus). The meeting included participants as well those from other European countries, whose insights suggest that drivers mainland Europe are similar to Britain. Consequently, we stand benefit their knowledge and experience. It concluded if continue at present pace then Britain may be left with a few large, flourishing populations, but many smaller will...
Abstract Isolates of Pseudocercosporella herpotrichoides (Fron.) Deighton, causal agent eyespot disease cereals, with reduced sensitivity to the imidazole fungicide prochloraz were produced by spontaneous selection on fungicide‐amended media or successive rounds ultra‐violet (U V) irradiation conidia. Resistance frequencies similar those obtained for other sterol‐biosynthesis‐inhibiting (SBI) compounds. Stability testing indicated that a large proportion UV‐induced mutants reverted rapidly...
A detection system incorporating the polymerase chain reaction was compared with use of histopathology and virus isolation to determine presence equid herpesvirus type 1 or 4 in equine tissues submitted a diagnostic laboratory. When performed, these had been stored for up 3 years. Thirty-eight representing 14 cases embedded paraffin wax. Analysis using PCR gave predictive values 1.0 0.91 positive negative result respectively, sensitivity specificity 75% 100% respectively. Fifty-three 28...
Disease progress of Stenocarpella macrospora (Earle) Sutton (syn. Diplodia Earle) was monitored on selected maize breeding lines over two seasons at three locations. Tagged plants were assessed 10 day intervals for foliar lesions a 1–9 scale and ear rot 1–5 scale. The level disease farm in Jos (West Africa Milk Company farm) significantly greater than those the other locations (UTC Tenti Saminaka), which had reduced or zero debris from previous year’s cultivation. There significant...
A study was commissioned by NatureScot to analyse changes in the status of adder (Vipera berus) and other native reptiles at 16 sites across mainland Scotland, Isle Skye Arran over a 30-year period from 1992-93 2022-24. In 2022-24, volunteer surveyors revisited that were previously surveyed identify occupancy. Visual surveys recorded adder, common lizard (Zootoca vivipara), slow-worm (Anguis fragilis), frog (Rana temporaria), toad (Bufo bufo), smooth newt (Lissotriton vulgaris), palmate...
Leech predation of amphibians is known to occur in Europe. Observation severe leech infestation affecting a common toad Bufo bufo southern England summer 2020, with leeches covering the toad’s eyes, throat and axillae, initiated collaborative investigation learn more about occurrence such anurans UK. Soliciting reports from general public identified toads frogs Rana temporaria Devon, Greater London, Hampshire, Isle Wight Somerset England. Through morphological and/or molecular samples,...
Abstract The One Health High-Level Expert Panel’s definition of includes optimizing the health people, animals (wild and domestic), ecosystems. For many practitioners, wildlife that can spread zoonoses are focus, particularly if they come in contact with people. However, ecosystem is often best-indicated by less-encountered species, for instance, amphibians reptiles. This review highlights how these taxa benefit human well-being, including cultural significance, as well their impact on...
Abstract The relationship between Rhizoctonia solani isolates derived from leaf spot and sore shin symptoms on tobacco was characterized by determining nuclear number, hyphal diameter, anastomosis grouping (AG) pathogenicity. had significantly more nuclei per cell, wider hyphae than the isolates. Anastomosis pairings with known tester strains confirmed to be AG 3, 4. Pathogenicity testing indicated that were pathogenic all parts of plant, whereas tended form lesions stems only.