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Physiological, molecular, and genetic mechanism of action of the biostimulant Quantis™ for increased thermotolerance of potato (Solanum tuberosum L.) (2024)
Journal Article
Jayaweera, D. P., Dambire, C., Angelopoulou, D., Munné-Bosch, S., Swarup, R., & Ray, R. V. (2024). Physiological, molecular, and genetic mechanism of action of the biostimulant Quantis™ for increased thermotolerance of potato (Solanum tuberosum L.). Chemical and Biological Technologies in Agriculture, 11(1), 9. https://doi.org/10.1186/s40538-023-00531-3

Background: Raising global temperatures limit crop productivity and new strategies are needed to improve the resilience of thermosensitive crops such as potato (Solanum tuberosum L.). Biostimulants are emerging as potential crop protection products a... Read More about Physiological, molecular, and genetic mechanism of action of the biostimulant Quantis™ for increased thermotolerance of potato (Solanum tuberosum L.).

Molecular characterisation of defence of Brassica napus (Oilseed rape) to Rhizoctonia solani AG2-1 confirmed by functional analysis in Arabidopsis thaliana (2023)
Journal Article
Sims, I., Jayaweera, D., Swarup, K., & Ray, R. V. (2023). Molecular characterisation of defence of Brassica napus (Oilseed rape) to Rhizoctonia solani AG2-1 confirmed by functional analysis in Arabidopsis thaliana. Phytopathology, 113(8), 1525-1536. https://doi.org/10.1094/PHYTO-08-22-0305-R

Rhizoctonia solani is a necrotrophic, soilborne fungal pathogen associated with significant establishment losses in Brassica napus (oilseed rape; OSR). The anastomosis group (AG) 2-1 of R. solani is the most virulent to OSR, causing damping-off, root... Read More about Molecular characterisation of defence of Brassica napus (Oilseed rape) to Rhizoctonia solani AG2-1 confirmed by functional analysis in Arabidopsis thaliana.

Fungal plant pathogen “mutagenomics” reveals tagged and untagged mutations in Zymoseptoria tritici and identifies SSK2 as key morphogenesis and stress-responsive virulence factor (2023)
Journal Article
Blyth, H. R., Smith, D., King, R., Bayon, C., Ashfield, T., Walpole, H., …Rudd, J. J. (2023). Fungal plant pathogen “mutagenomics” reveals tagged and untagged mutations in Zymoseptoria tritici and identifies SSK2 as key morphogenesis and stress-responsive virulence factor. Frontiers in Plant Science, 14, Article 1140824. https://doi.org/10.3389/fpls.2023.1140824

“Mutagenomics” is the combination of random mutagenesis, phenotypic screening, and whole-genome re-sequencing to uncover all tagged and untagged mutations linked with phenotypic changes in an organism. In this study, we performed a mutagenomics scree... Read More about Fungal plant pathogen “mutagenomics” reveals tagged and untagged mutations in Zymoseptoria tritici and identifies SSK2 as key morphogenesis and stress-responsive virulence factor.

A large bioassay identifies Stb resistance genes that provide broad resistance against Septoria tritici blotch disease in the UK (2023)
Journal Article
Tidd, H., Rudd, J. J., Ray, R. V., Bryant, R., & Kanyuka, K. (2023). A large bioassay identifies Stb resistance genes that provide broad resistance against Septoria tritici blotch disease in the UK. Frontiers in Plant Science, 13, Article 1070986. https://doi.org/10.3389/fpls.2022.1070986

Introduction: Septoria tritici blotch (STB) is one of the most damaging fungal diseases of wheat in Europe, largely due to the paucity of effective resistance genes against it in breeding materials. Currently dominant protection methods against this... Read More about A large bioassay identifies Stb resistance genes that provide broad resistance against Septoria tritici blotch disease in the UK.

Impact of Initial Population Density of the Dubas Bug, Ommatissus lybicus (Hemiptera: Tropiduchidae), on Oviposition Behaviour, Chlorophyll, Biomass and Nutritional Response of Date Palm (Phoenix dactylifera) (2022)
Journal Article
Al-Abri, N., Al-Raqami, S., Al-Hashemi, M., Al-Shidi, R., Al-Khatri, S., & Ray, R. V. (2022). Impact of Initial Population Density of the Dubas Bug, Ommatissus lybicus (Hemiptera: Tropiduchidae), on Oviposition Behaviour, Chlorophyll, Biomass and Nutritional Response of Date Palm (Phoenix dactylifera). Insects, 14(1), Article 12. https://doi.org/10.3390/insects14010012

The Dubas bug (Ommatissus lybicus) is an economically significant pest of date palms. In this study, the effect of the population density of O. lybicus on chlorophyll, measured by the soil plant analysis development (SPAD) chlorophyll meter, palm bio... Read More about Impact of Initial Population Density of the Dubas Bug, Ommatissus lybicus (Hemiptera: Tropiduchidae), on Oviposition Behaviour, Chlorophyll, Biomass and Nutritional Response of Date Palm (Phoenix dactylifera).

Yield loss and integrated disease control of Rhizoctonia solani AG2-1 using seed treatment and sowing rate of oilseed rape (2022)
Journal Article
Jayaweera, D., & Ray, R. V. (2023). Yield loss and integrated disease control of Rhizoctonia solani AG2-1 using seed treatment and sowing rate of oilseed rape. Plant Disease, 107(4), 1159–1165. https://doi.org/10.1094/pdis-08-22-1817-re

Rhizoctonia solani anastomosis group (AG) 2-1 is an ubiquitous soil-borne pathogen causing severe damping-off of oilseed rape (OSR). In the absence of varietal resistance to AG2-1 there are limited methods for integrated disease management. The objec... Read More about Yield loss and integrated disease control of Rhizoctonia solani AG2-1 using seed treatment and sowing rate of oilseed rape.

Yield Losses and Control by Sedaxane and Fludioxonil of Soilborne Rhizoctonia, Microdochium, and Fusarium Species in Winter Wheat (2021)
Journal Article
Brown, M., Jayaweera, D. P., Hunt, A., Woodhall, J. W., & Ray, R. V. (2021). Yield Losses and Control by Sedaxane and Fludioxonil of Soilborne Rhizoctonia, Microdochium, and Fusarium Species in Winter Wheat. Plant Disease, 105(9), 2521–2530. https://doi.org/10.1094/PDIS-11-20-2401-RE

Soilborne Rhizoctonia, Microdochium, and Fusarium species are major causal agents of seedling and stem-base diseases of wheat. Currently, seed treatments are considered the most effective solution for their control. Rhizoctonia solani anastomosis gro... Read More about Yield Losses and Control by Sedaxane and Fludioxonil of Soilborne Rhizoctonia, Microdochium, and Fusarium Species in Winter Wheat.

The role of photoprotection in defence of two wheat genotypes against Zymoseptoria tritici (2021)
Journal Article
Ajigboye, O. O., Jayaweera, D. P., Angelopoulou, D., Ruban, A. V., Murchie, E. H., Pastor, V., …Ray, R. V. (2021). The role of photoprotection in defence of two wheat genotypes against Zymoseptoria tritici. Plant Pathology, 70(6), 1421-1435. https://doi.org/10.1111/ppa.13392

This study provides new insights into the role of photoprotection in preformed and induced defence of two wheat genotypes with contrasting phenotypes to infection by Zymoseptoria tritici. We investigated the mechanisms of the photoprotective response... Read More about The role of photoprotection in defence of two wheat genotypes against Zymoseptoria tritici.

Population dynamics of Rhizoctonia, Oculimacula, and Microdochium species in soil, roots, and stems of English wheat crops (2020)
Journal Article
Brown, M., Woodhall, J. W., Nielsen, L. K., Tomlinson, D., Farooqi, A., & Ray, R. V. (2021). Population dynamics of Rhizoctonia, Oculimacula, and Microdochium species in soil, roots, and stems of English wheat crops. Plant Pathology, 70(4), 862-874. https://doi.org/10.1111/ppa.13329

© 2020 The Authors. Plant Pathology published by John Wiley & Sons Ltd on behalf of British Society for Plant Pathology This study aimed to elucidate the population dynamics of Rhizoctonia, Oculimacula, and Microdochium species, causing the stem ba... Read More about Population dynamics of Rhizoctonia, Oculimacula, and Microdochium species in soil, roots, and stems of English wheat crops.

Infestation by Myzus persicae increases susceptibility of Brassica napus cv. “Canard” to Rhizoctonia solani AG 2-1 (2018)
Journal Article
Drizou, F., Bruce, T. J. A., Ray, R. V., & Graham, N. S. (2018). Infestation by Myzus persicae increases susceptibility of Brassica napus cv. “Canard” to Rhizoctonia solani AG 2-1. Frontiers in Plant Science, 9, 1-14. https://doi.org/10.3389/fpls.2018.01903

Activation of plant defense pathways can be influenced by the presence of different species of attacking organisms. Understanding the complicated interactions triggering plant defense mechanisms is of great interest as it may allow the development of... Read More about Infestation by Myzus persicae increases susceptibility of Brassica napus cv. “Canard” to Rhizoctonia solani AG 2-1.

Agronomic practices influence the infection of an oats cultivar with Fusarium langsethiae (2017)
Journal Article
Imathiu, S. M., Ray, R. V., Back, M., Hare, M. C., & Edwards, S. G. (2017). Agronomic practices influence the infection of an oats cultivar with Fusarium langsethiae. Acta Phytopathologica et Entomologica Hungarica, 52(1), 15-27. https://doi.org/10.1556/038.52.2017.009

© 2017 Akadémiai Kiadó, Budapest. Fusarium langsethiae, a toxigenic fungus known to contaminate small-grain cereals with type A trichothecene mycotoxins, HT-2 and T-2 was described as a new species in 2004. HT-2 and T-2 are some of the most potent Fu... Read More about Agronomic practices influence the infection of an oats cultivar with Fusarium langsethiae.

Development of high-throughput methods to screen disease caused by Rhizoctonia solani AG 2-1 in oilseed rape (2017)
Journal Article
Drizou, F., Graham, N. S., Bruce, T. J. A., & Ray, R. V. (2017). Development of high-throughput methods to screen disease caused by Rhizoctonia solani AG 2-1 in oilseed rape. Plant Methods, 13(1), https://doi.org/10.1186/s13007-017-0195-1

Background: Rhizoctonia solani (Kühn) is a soil-borne, necrotrophic fungus causing damping off, root rot and stem canker in many cultivated plants worldwide. Oilseed rape (OSR, Brassica napus) is the primary host for anastomosis group (AG) 2-1 of R.... Read More about Development of high-throughput methods to screen disease caused by Rhizoctonia solani AG 2-1 in oilseed rape.

In vitro growth characteristics of Fusarium langsethiae isolates recovered from oats and wheat grain in the UK (2016)
Journal Article
Imathiu, S. M., Ray, R. V., Back, M., Hare, M., & Edwards, S. G. (2016). In vitro growth characteristics of Fusarium langsethiae isolates recovered from oats and wheat grain in the UK. Acta Phytopathologica et Entomologica Hungarica, 51(2), 159-169. https://doi.org/10.1556/038.51.2016.2.1

Fusarium langsethiae is a fungus that has recently been implicated in the contamination of small-grain cereal crops such as oats, wheat and barley with high levels of HT-2 and T-2 toxins in many European countries. The epidemiology of this fungus is... Read More about In vitro growth characteristics of Fusarium langsethiae isolates recovered from oats and wheat grain in the UK.

Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae (2016)
Journal Article
Drakulic, J., Kahar, M. H., Ajigboye, O., Bruce, T., & Ray, R. V. (2016). Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae. Toxins, 8(12), https://doi.org/10.3390/toxins8120353

Fusarium graminearum is the predominant causal species of Fusarium head blight in Europe and North America. Different chemotypes of the species exist, each producing a plethora of mycotoxins. Isolates of differing chemotypes produce nivalenol (NIV) a... Read More about Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae.

A TaqMan real-time PCR assay for Rhizoctonia cerealis and its use in wheat and soil (2016)
Journal Article
Woodhall, J., Brown, M., Perkins, K., Valdeolmillos, E. S., Boonham, N., & Ray, R. V. (2017). A TaqMan real-time PCR assay for Rhizoctonia cerealis and its use in wheat and soil. European Journal of Plant Pathology, 148(2), https://doi.org/10.1007/s10658-016-1083-7

Rhizoctonia cerealis causes sharp eyespot in cereals and the pathogen survives as mycelia or sclerotia in soil. Real-time Polymerase Chain Reaction (qPCR) assays based on TaqMan chemistry are highly suitable for use on DNA extracted from soil. We rep... Read More about A TaqMan real-time PCR assay for Rhizoctonia cerealis and its use in wheat and soil.

Altered gene expression by sedaxane increases PSII efficiency, photosynthesis and growth and improves tolerance to drought in wheat seedlings (2016)
Journal Article
Ajigboye, O. O., Lu, C., Murchie, E. H., Schlatter, C., Swart, G., & Ray, R. V. (2017). Altered gene expression by sedaxane increases PSII efficiency, photosynthesis and growth and improves tolerance to drought in wheat seedlings. Pesticide Biochemistry and Physiology, 137, 49-61. https://doi.org/10.1016/j.pestbp.2016.09.008

Succinate dehydrogenase inhibitor (SDHI) fungicides have been shown to increase PSII efficiency and photosynthesis under drought stress in the absence of disease to enhance the biomass and yield of winter wheat. However, the molecular mechanism of im... Read More about Altered gene expression by sedaxane increases PSII efficiency, photosynthesis and growth and improves tolerance to drought in wheat seedlings.

Aphid Infestation Increases Fusarium langsethiae and T-2 and HT-2 Mycotoxins in Wheat (2016)
Journal Article
Drakulic, J., Ajigboye, O., Swarup, R., Bruce, T., & Ray, R. V. (2016). Aphid Infestation Increases Fusarium langsethiae and T-2 and HT-2 Mycotoxins in Wheat. Applied and Environmental Microbiology, 82(22), 6548-6556. https://doi.org/10.1128/AEM.02343-16

Fusarium langsethiae is a fungal pathogen of cereal crops that is an increasing problem in northern Europe, but much of its epidemiology is poorly understood. The species produces the mycotoxins T-2 and HT-2, which are highly toxic. It was hypothesiz... Read More about Aphid Infestation Increases Fusarium langsethiae and T-2 and HT-2 Mycotoxins in Wheat.

Direct and host-mediated interactions between Fusarium pathogens and herbivorous arthropods in cereals (2016)
Journal Article
Drakulic, J., Bruce, T., & Ray, R. V. (2017). Direct and host-mediated interactions between Fusarium pathogens and herbivorous arthropods in cereals. Plant Pathology, 66(1), 3-13. https://doi.org/10.1111/ppa.12546

Fusarium head blight and fusarium ear rot diseases of cereal crops are significant global problems, causing yield and grain quality losses and accumulation of harmful mycotoxins. Safety limits have been set by the European Commission for several Fusa... Read More about Direct and host-mediated interactions between Fusarium pathogens and herbivorous arthropods in cereals.

Identification of novel quantitative trait loci for resistance to Fusarium seedling blight caused by Microdochium majus and M. nivale in wheat (2016)
Journal Article
Ren, R., Foulkes, J., Mayes, S., Yang, X., & Ray, R. V. (2016). Identification of novel quantitative trait loci for resistance to Fusarium seedling blight caused by Microdochium majus and M. nivale in wheat. Field Crops Research, 191, 1-12. https://doi.org/10.1016/j.fcr.2016.03.011

Microdochium nivale and Microdochium majus are important causal agents of Fusarium seedling blight (FSB) and Fusarium head blight (FHB) in wheat and other cereals worldwide. A doubled-haploid population derived from a cross between the winter wheat R... Read More about Identification of novel quantitative trait loci for resistance to Fusarium seedling blight caused by Microdochium majus and M. nivale in wheat.