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Browsing by Author "Fitt, Bruce"
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Azole fungicide sensitivity and molecular mechanisms of reduced sensitivity in Irish Pyrenopeziza brassicae populations
Bucur, Diana; Huang, Yongju; Fitt, Bruce; Kildea, Stephen (2022-10-09)BACKGROUND: Light leaf spot, caused by Pyrenopeziza brassicae, is amongst the most damaging diseases of winter oilseed rape(Brassica napus), and currently the sterol 14⊍-demethylase (CYP51) inhibitors (azoles) represent ... -
Azole sensitivity in Leptosphaeria pathogens of oilseed rape: the role of lanosterol 14α-demethylase
Sewell, Thomas; J Hawkins, Nichola; Stotz, Henrik; Huang, Yongju; L Kelly, Steven; E Kelly, Diane; Fraaije, Bart; Fitt, Bruce (2017-11-20)Lanosterol 14-α demethy lase is a key enzyme intermediating the biosynthesis of ergosterol in fungi, and the target of azole fungicides. Studies have suggested that Leptosphaeria maculans and L. biglobosa, the causal ... -
Canker control strategies in oilseed rape
Gladders, P; Fitt, Bruce (1999) -
Chemical warfare: the fungal quest to conquer oilseed rape
Fortune, James; Baker, Daniel; Stanley, James; Karandeni Dewage, Chinthani Shanika; Ritchie, Faye; Fitt, Bruce; Huang, Yongju (AFCP, 2021-06-16) -
Combining R gene and quantitative resistance increases effectiveness of cultivar resistance against Leptosphaeria maculans in Brassica napus in different environments : Combining R gene and quantitative resistance against Leptosphaeria maculans
Huang, Yongju; Mitrousia, Georgia; Mohamed Sidique, Siti; Qi, Aiming; Fitt, Bruce (2018-05-23)Using cultivar resistance against pathogens is one of the most economical and environmentally friendly methods for control of crop diseases. However, cultivar resistance can be easily rendered ineffective due to changes ... -
Control of arable crop pathogens; climate change mitigation, impacts and adaptation
Fitt, Bruce; Stotz, Henrik; Hughes, David (Springer Nature, 2016-03-29)In the context of threats to global food security from impacts of damaging crop diseases and of climate change, this chapter describes three aspects of the interactions between climate change and diseases that reduce arable ... -
Control of crop diseases through Integrated Crop Management to deliver climate-smart farming systems for low and high input crop production
Richard, Benjamin; Qi, Aiming; Fitt, Bruce (2022-01)Abstract: Crop diseases affect crop yield and quality and cause significant losses of total food production worldwide. With the ever‐increasing world population and decreasing land and water resources, there is a need not ... -
Current understanding of phoma stem canker and light leaf spot on oilseed rape in the UK
Huang, Yongju; Karandeni Dewage, Chinthani Shanika; Fitt, Bruce (University of Hertfordshire Press, 2021-06-16)Oilseed rape is the third most important arable crop in the UK. Phoma stem cankerand light leaf spot are two economically important diseases of this crop. These twodiseases cause annual yield losses of winter oilseed rape ... -
Disease management in oilseed rape: insights into the Brassica napus-Pyrenopeziza brassicae pathosystem
Karandeni Dewage, Chinthani Shanika; Qi, Aiming; Stotz, Henrik; Huang, Yongju; Fitt, Bruce (AFCP, 2021-06-16) -
Distribution and Biodiversity of Seed-Borne Pathogenic and Toxigenic Fungi of Maize in Egypt and Their Correlations with Weather Variables
Qi, Aiming; M. Shabana, Yasser; M. Ghoneem, Khalid; M. Rashad, Younes; S. Arafat, Nehal; Fitt, Bruce; Richard, Benjamin (2022-09-08)Studies of the biodiversity of plant pathogenic and toxigenic fungi are attracting great attention to improve the predictability of their epidemics and the development of their control programs. Two hundred maize grain ... -
Effectiveness of Rlm7 resistance against Leptosphaeria maculans (phoma stem canker) in UK winter oilseed rape cultivars
Mitrousia, Georgia; Huang, Yongju; Qi, Aiming; Mohamed Sidique, Siti; Fitt, Bruce (2018-08)The Rlm7 gene in Brassica napus is an important source of resistance for control of phoma stem canker on oilseed rape caused by the fungus Leptosphaeria maculans. This study shows the first report of L. maculans isolates ... -
Effects of a penthiopyrad and picoxystrobin fungicide mixtureon phoma stem canker (Leptosphaeria spp.) on UK winteroilseed rape
Sewell, Thomas; Moloney, Steven; Ashworth, Mike; Ritchie, Faye; Mashanova, Alla; Huang, Yongju; Stotz, Henrik; Fitt, Bruce (2016-07-01)In the UK, fungicides are often used to controlphoma stem canker on winter oilseed rape. Field trialswere established near Boxworth, Cambridgeshire for fourcropping seasons (2011/2012, 2012/2013, 2013/2014 and2014/15) to ... -
Effects of cultivar resistance and fungicide application on stem canker of oilseed rape (Brassica napus) and potential interseasonal transmission of Leptosphaeria spp. inoculum
Fortune, James A.; Qi, Aiming; Ritchie, Faye; Karandeni Dewage, Chinthani Shanika; Fitt, Bruce; Huang, Yongju (2021-12)Phoma stem canker is a damaging disease of oilseed rape (Brassica napus) that causesannual yield losses to UK oilseed rape growers worth approximately £100 million,despite the use of fungicides. In the UK, oilseed rape is ... -
Effects of plant age and inoculum concentration on light leaf spot disease phenotypes on oilseed rape
Sapelli, Laura; Karandeni Dewage, Chinthani Shanika; Ritchie, Faye; Fitt, Bruce; Huang, Yongju (2021-06-16)Light leaf spot is caused by the fungal pathogen Pyrenopeziza brassicae and is the mosteconomically damaging disease of oilseed rape (Brassica napus) in the UK. Current controlrelies on repeated fungicide applications; ... -
Efficient qPCR estimation and discrimination of airborne inoculum of Leptosphaeria maculans and L. biglobosa, the causal organisms of phoma leaf spotting and stem canker of oilseed rape : qPCR detection of Leptosphaeria airborne inoculum
Kaczmarek, Joanna; S. West, Jon; King, Kevin M.; Canning, Gail; Latunde-Dada, Akinwunmi O.; Huang, Yongju; Fitt, Bruce; Malgorzata Jedryczka, Malgorzata (2023-12-06)BACKGROUND: Detection of the inoculum of phytopathogens greatly assists in the management of diseases, but is difficult for pathogens with airborne fungal propagules. Here, we present experiments to determine the abundance ... -
Genomic evidence for genes encoding leucine-rich repeat receptors linked to resistance against the eukaryotic extra- and intracellular Brassica napus pathogens Leptosphaeria maculans and Plasmodiophora brassicae
Stotz, Henrik; Pascoe, Harvey; Parham, Haddadi; Fitt, Bruce; Mashanova, Alla; Kukol, Andreas; Larkan, Nicholas; Hossein, Borhan (2018-06-01)Genes coding for nucleotide-binding leucine-rich repeat (LRR) receptors (NLRs) control resistance against intracellular (cell-penetrating) pathogens. However, evidence for a role of genes coding for proteins with LRR domains ... -
Identification, Molecular Characterization, and Biology of a Novel Quadrivirus Infecting the Phytopathogenic Fungus Leptosphaeria biglobosa.
Shah, Unnati; Fitt, Bruce; Kotta-Loizou, Ioly; Coutts, Robert (2018-12-25)Here we report the molecular characterisation of a novel dsRNA virus isolated from the filamentous, plant pathogenic fungus Leptosphaeria biglobosa and known to cause significant alterations to fungal pigmentation and ... -
Importance of Leptosphaeria biglobosa as a cause of phoma stem canker on winter oilseed rape in the UK
Fitt, Bruce; Huang, Yongju; Karandeni Dewage, Chinthani Shanika (2014-11-25)Phoma stem canker is a major disease of oilseed rape in the UK, leading to annual yield losses worth more than £100M. The disease is caused by two closely related species, Leptosphaeria maculans and L. biglobosa. L. maculans ... -
Incorporating pleiotropic quantitative trait loci in dissection of complex traits: seed yield in rapeseed as an example
Ziliang, Luo; Meng, Wang; Yan, Long; Huang, Yongju; Shi, Lei; Zhang, Chunyu; Liu, Xiang; Fitt, Bruce; Xiang, Jinxia; Mason, Annaliese; Snowdon, Rod; Liu, Peifa; Meng, Jinling; Zou, Jun (2017-08-30)Most agronomic traits of interest for crop improvement (including seed yield) are highly complex quantitative traits controlled by numerous genetic loci, which brings challenges for comprehensively capturing associated ... -
Influence of Elevated Temperatures on Resistance Against Phoma Stem Canker in Oilseed Rape
Noel, Katherine; Qi, Aiming; Gajula, Lakshmi; Huang, Yongju; Fitt, Bruce; Stotz, Henrik (2022-03-02)Cultivar resistance is an important tool in controlling pathogen-related diseases in agricultural crops. As temperatures increase due to global warming, temperatureresilient disease resistance will play an important role ...