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Browsing University of Hertfordshire by Author "Crop Protection and Climate Change"
Now showing items 1-20 of 945
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2-Cysteine Peroxiredoxins and Thylakoid Ascorbate Peroxidase create a water-water cycle that is essential to protect the photosynthetic apparatus under high light stress conditions
Awad, Jasmin; Stotz, Henrik; Fekete, Agnes; Krischke, Markus; Engert, Cornelia; Havaux, Michel; Berger, Susanne; Mueller, Martin J. (2015-04-01)Different peroxidases, including 2-cysteine (2-Cys) peroxiredoxins (PRXs) and thylakoid ascorbate peroxidase (tAPX), have been proposed to be involved in the water-water cycle (WWC) and hydrogen peroxide (H2O2)-mediated ... -
The action of three Beet yellows virus resistance QTLs depends on alleles at a novel genetic locus that controls symptom development
Grimmer, M. K.; Bean, K. M. R.; Qi, Aiming; Stevens, M.; Asher, M. J. C. (2008-08)Beet yellows virus (BYV) can dramatically reduce yield from sugar beet crops. A BYV resistant plant from a Beta germplasm accession was crossed with a sugar beet plant to generate the segregating population BYV1. This ... -
Adaptacion de leguminosas de cobertera al medio ambiente en laderas en Bolivia
Wheeler, T. R.; Keatinge, J. D. H.; Qi, Aiming; Ellis, R. H.; Summerfield, R. J. (Silsoe Research Institute, 1997) -
Adaptation to increasing severity of phoma stem canker on winter oilseed rape in the UK under climate change
Barnes, A. P.; Wreford, A.; Butterworth, M. H.; Semenov, M.A.; Moran, D.; Evans, Neal; Fitt, Bruce D.L. (2010-12)Various adaptation strategies are available that will minimize or negate predicted climate change-related increases in yield loss from phoma stem canker in UK winter oilseed rape (OSR) production. A number of forecasts for ... -
Additives for the enhancement of fusion and endocytosis in higher plant protoplasts : An electrophoretic study
Grout, B.W.W.; Coutts, Robert H.A. (1974-06-01)A range of additives has been employed to enhance both endocytosis and fusion in isolated higher plant protoplast systems. The effects of these compounds, at various concentrations, on the electrical properties of the ... -
Adhesion of Pasteuria penetrans to the cuticle of root-knot nematodes (Meloidogyne spp.) inhibited by fibronectin : A study of electrostatic and hydrophobic interactions
Davies, Keith; Afolabi, P.; O'Shea, P. (1996-05)Pasteuria penetrans is a bacterium with the potential to control plant-parasitic nematode populations; the mechanism of spore adhesion, however, is poorly understood. Attachment assays were performed in media supplemented ... -
Age-specific expression of a P450 monooxygenase (CYP6CM1) correlates with neonicotinoid resistance in Bemisia tabaci
Jones, Christopher M.; Daniels, Miriam; Andrews, Melanie; Slater, Russell; Lind, Robert J.; Gorman, Kevin; Williamson, Martin S.; Denholm, Ian (2011-11)The whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae), is an invasive insect pest of agriculture and horticulture worldwide. The neonicotinoid insecticides, which target nicotinic acetylcholine receptors in post-synaptic ... -
Age-specific expression of resistance to a neonicotinoid insecticide in the whitefly Bemisia tabaci
Nauen, Ralf; Bielza, Pablo; Denholm, Ian; Gorman, Kevin (2008-09-29)Neonicotinoid insecticides retain a crucial role within many chemical and integrated control strategies for the tobacco whitefly, Bemisia tabaci Gennadius, in spite of the establishment of potent and widespread resistance ... -
Agricultural Nematology in East and Southern Africa : Problems, Management Strategies and Stakeholder Linkages
Talwana, Herbert; Sibanda, Zibusiso; Wanjohi, Waceke; Kimenju, Wangai; Luambano-Nyoni, Nessie; Massawe, Cornel; Manzanilla-López, Rosa; Davies, Keith; Hunt, David; Sikora, Richard; Coyne, Danny; Gowen, Simon (2016-01-12)By 2050, Africa’s population is projected to exceed two billion. Africa will have to increase food production more than 50% in the coming 50 years to meet the nutritional requirements of its growing population. Nowhere is ... -
Agrobacterium tumefaciens-mediated transformation of Leptosphaeria spp. and Oculimacula spp. with the reef coral gene DsRed and the jellyfish gene gfp
Eckert, M. R.; Maguire, K.; Urban, M.; Foster, S.; Fitt, Bruce D.L.; Lucas, John A.; Hammond-Kosack, K. (2005-12-01)Four filamentous ascomycetes, Leptosphaeria maculans, L. biglobosa, Oculimacula yallundae and O. acuformis, were transformed via Agrobacterium tumefaciens-mediated transformation with the genes encoding DsRed and GFP. Using ... -
Agronomy
Jaggard, K. W.; Qi, Aiming (Wiley-Blackwell, 2006) -
Air sampling to forecast risk of mycotoxin-producing fusarium species in wheat crops
West, Jon S.; Townsend, J.A.; East, A.; Canning, G.; Halder, J. B.; Fitt, Bruce D.L. (Bayer CropScience, 2010) -
Alteration in endospore attachment of H. cajani specific Pasteuria to different age groups of H. cajani J2 exposed to host and non-host root exudates.
Kumar, Kiran; Davies, Keith; Mohan, Sharad (2016-08-28)Plant root exudates and rhizosphere microbes, including nematodes, are involved in highly specific chemical communication that we know little about. Freshly hatched J2 of the pigeon-pea cyst nematode Heterodera cajani and ... -
Alterations in RNA and protein metabolism in uninoculated half-leaves of cowpea adjacent to tobacco necrosis virus infected halves
Coutts, Robert H.A.; Wagih, E.E. (1981-03-01)Following inoculation of half-leaves of cowpea with tobacco necrosis virus (TNV, R 1 : 1.5 19 : S S : S Fu), two major protein fractions, termed α and β appear in soluble extracts, which are absent from sham-inoculated ... -
Alterations in the soluble protein patterns of tobacco and cowpea leaves following inoculation with tobacco necrosis virus
Coutts, Robert H.A. (1978-06-01)Changes in the soluble protein composition of both tobacco and cowpea leaves following inoculation with tobacco necrosis virus (TNV R/1 : 1.5/19 : S/S : S/Fu [1]) have been investigated by the techniques of disc-electrophoresis. ... -
Altered distribution and life cycles of major pathogens in Europe
Evans, N.; Gladders, P.; Fitt, Bruce D.L.; Tiedemann, A. V. (DPG Selbstverlag, 2009)Climate is a major determinant of crop productivity. Besides its direct impact on plant growth it has a major effect on the prevalence and incidence of plant diseases. The sensitivity of pathogens to climate is pronounced. ... -
Alternaria diseases of linseed
Fitt, Bruce D.L.; Vloutoglou, I. (Elsevier, 1992)Fungi of the genus Alternaria possess very intriguing characteristics. They are some of the most cosmopolitan in terms of both their biological environments, and as agricultural commodities. Some pathotypes of Alternaria ... -
Amplification of a Cytochrome P450 Gene Is Associated with Resistance to Neonicotinoid Insecticides in the Aphid Myzus persicae
Puinean, Alin M.; Foster, Stephen P.; Oliphant, Linda; Denholm, Ian; Field, Linda M.; Millar, Neil S.; Williamson, Martin S.; Bass, Chris (2010-06)The aphid Myzus persicae is a globally significant crop pest that has evolved high levels of resistance to almost all classes of insecticide. To date, the neonicotinoids, an economically important class of insecticides ... -
Analyses of air samples for ascospores of Leptosphaeria maculans and L.biglobosa by light microscopy and molecular techniques
Kaczmarek, J.; Jedryczka, M.; Fitt, Bruce D.L.; Lucas, J. A.; Latunde-Dada, A. O. (2009)Spores of many fungal pathogens are dispersed by wind. Detection of these airborne inocula is important in forecasting both the onset and the risk of epiphytotics. Species-specific primers targeted at the internal transcribed ... -
Analysing virulent and avirulent Leptosphaeria maculans isolates to understand R gene-mediated resistance in Brassica napus
Mitrousia, Georgia; Huang, Yongju; Hall, Avice; Fitt, Bruce D.L. (2012-10)Phoma stem canker (Leptosphaeria maculans) is a major disease on oilseed rape (Brassica napus) in Europe (e.g. it causes losses to UK farmers of > £100M p.a.). Single major gene resistance (R) in B. napus against L. maculans ...