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Browsing Staff publications - Cranfield Health by Author "Magan, Naresh"

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Comparison of different bead-beating RNA extraction strategies: An optimized method for filamentous fungi

Leite, Goncalo M.; Magan, Naresh; Medina-Vayá, Ángel (Elsevier Science B.V., Amsterdam., 2012-03-01)

Molecular studies, especially in relation to the activity of secondary metabolite gene clusters, require the ability to extract good quality RNA from fungal biomass. This is often hindered by the cell wall structure and ...
Comparison of water activity and temperature impacts on growth of Fusarium langsethiae strains from northern Europe on oat-based media

Medina-Vayá, Ángel; Magan, Naresh (Elsevier Science B.V., Amsterdam., 2010-09-01)

This study has examined the effect of water activity (aw, 0.995-0.90) and temperature (10-37Â°C) on the lag phases prior to growth, growth rates and used models to develop two dimensional profiles for optimum and marginal ...
Complex regulation of the aflatoxin biosynthesis gene cluster of Aspergillus flavus in relation to various combinations of water activity and temperature

Schmidt-Heydt, Markus; Abdel-Hadi, Ahmed; Magan, Naresh; Geisen, Rolf (Elsevier, 2009-11-15)

A microarray analysis was performed to study the effect of varying combinations of water activity and temperature on the activation of aflatoxin biosynthesis genes in Aspergillus flavus grown on YES medium. Generally A. ...
Control of Aflatoxin Production of Aspergillus flavus and Aspergillus parasiticus Using RNA Silencing Technology by Targeting aflD (nor-1) Gene.

Abdel-Hadi, Ahmed; Caley, D. P.; Carter, D. R.; Magan, Naresh (MDPI AG, 2011-06-30)

Aspergillus ﬂavus and Aspergillus parasiticus are important pathogens of cotton, corn, peanuts and other oil-seed crops, producing toxins both in the field and during storage. We have designed three siRNA sequences ...
Detection and discrimination between ochratoxin producer and non-producer strains of Penicillium nordicum on a ham-based medium using an electronic nose

Camardo Leggieri, M.; Planas Pont, Neus; Battilani, P.; Magan, Naresh (Mycotoxin Research, 2011-02-28)

The aim of this work was to evaluate the potential use of qualitative volatile patterns produced by Penicillium nordicum to discriminate between ochratoxin A (OTA) producers and non-producer strains on a ham-based medium. ...
Different sample treatment approaches for the analysis of T-2 and HT-2 toxins from oats-based media

Medina-Vayá, Ángel; Valle-Algarra, Francisco M.; Jimenez, Misericordia; Magan, Naresh (Elsevier Science B.V., Amsterdam., 2010-08-01)

A LC-DAD method is proposed for the determination of the T-2 and HT-2 toxins in cultures of Fusarium langsethiae in oat-based and other in vitro media. Test media consisted of freshly prepared milled oats to which T-2 ...
Differential effect of environmental conditions on the growth and regulation of the fumonisin biosynthetic gene FUM1 in the maize pathogens and fumonisin producers Fusarium verticillioides and Fusarium proliferatum

Marin, P.; Magan, Naresh; Vazquez, C.; Gonzalez-Jaen, M. T. (Blackwell Publishing Ltd., 2010-08-31)

The effects of ecophysiological factors, temperature and solute potential, on both the growth and the regulation of the fumonisin biosynthetic FUM1 gene were studied and compared in one isolate each of the two closely ...
Discrimination between aflatoxigenic and non-aflatoxigenic Aspergillus section Flavi strains from Egyptian peanuts using molecular and analytical techniques

Abdel-Hadi, Ahmed; Carter, David; Magan, Naresh (Wageningen Academic Publishers, 2011-02-01)

A wide range of Aspergillus section Flavi strains were isolated from Egyptian peanut samples. Eighteen of these strains were compared with two type strains (Aspergillus flavus SRRC G1907 and Aspergillus parasiticus 2747) ...
Effect of fenpropimorph, prochloraz and tebuconazole on growth and production of T-2 and HT-2 toxins by Fusarium langsethiae in oat-based medium.

Mateo, Eva M.; Valle-Algarra, Francisco M.; Mateo, R.; Jimenez, Misericordia; Magan, Naresh (Elsevier Science B.V., Amsterdam., 2011-12-15)

Fusarium langsethiae has been isolated from infected cereals in central and northern Europe where it has been identified in the last decade as the main species involved in the occurrence of high levels of T-2 and HT-2 ...
Effect of solute and matric potential on in vitro growth and sporulation of strains from a new population of Aspergillus flavus isolated in Italy.

Giorni, Paola; Battilani, Paola; Magan, Naresh (Elsevier, 2008-05)

The effect of temperature and different solute (Ψs) and matric potentials (Ψm) on growth and sporulation of three aflatoxigenic strains of Aspergillus flavus isolated from contaminated maize in northern Italy was determined. ...
Effect of solute stress and temperature on growth rate and TRI5 gene expression using real time RT-PCR in Fusarium graminearum from Spanish wheat

Marin, P.; Jurado, M.; Magan, Naresh; Vazquez, C.; Gonzalez-Jaen, M. T. (Elsevier Science B.V., Amsterdam., 2010-06-15)

The objective of this work was to study the effect of ecophysiological factors on trichothecene gene expression and growth in Fusarium graminearum. The effect of non-ionic solute water potentials and temperature was ...
Effect of temperature and water activity on growth and ochratoxin A production boundaries of two Aspergillus carbonarius isolates on a simulated grape juice medium

Tassou, C. C.; Natskoulis P. I.; Magan, Naresh; Panagou, Efstathios Z. (Blackwell Publishing Ltd, 2009-07-01)

Aims: To develop and validate a logistic regression model to predict the growth and ochratoxin A (OTA) production boundaries of two Aspergillus carbonarius isolates on a synthetic grape juice medium as a function of ...
Effects of osmotic and matric potential on radial growth and accumulation of endogenous reserves in three isolates of Pochonia chlamydosporia

Esteves, Ivania; Peteira, Belkis; Powers, S.; Magan, Naresh; Kerry, Brian R. (Taylor and Francis, 2009-02)

For the first time, the effects of varying osmotic and matric potential on fungal radial growth and accumulation of polyols were studied in three isolates of Pochonia chlamydosporia. Fungal radial growth was measured on ...
Environmental factors affect efficacy of some essential oils and resveratrol to control growth and ochratoxin A production by Penicillium verrucosum and Aspergillus westerdijkiae on wheat grain.

Aldred, David; Cairns-Fuller, Victoria; Magan, Naresh (Elsevier, 2008)

This study determined the efficacy of three essential oils (bay, clove and cinnamon oil) and the antioxidant resveratrol (0–500 μg g−1) on the control of growth and ochratoxin A (OTA) production by Penicillium verrucosum ...
Environmental factors and interactions with mycobiota of grain and grapes: Effects on growth, deoxynivalenol and ochratoxin production by Fusarium culmorum and Aspergillus carbonarius

Magan, Naresh; Aldred, David; Hope, Russell; Mitchell, David (MDPI AG, 2010-03-18)

Mycotoxigenic fungi colonizing food matrices are inevitably competing with a wide range of other resident fungi. The outcomes of these interactions are influenced by the prevailing environmental conditions and the competing ...
Environmental factors modify carbon nutritional patterns and niche overlap between Aspergillus flavus and Fusarium verticillioides strains from maize.

Giorni, Paola; Magan, Naresh; Battilani, Paola (Elsevier, 2009-04-15)

This study examined the utilization patterns of key carbon sources (CS, 24: including key sugars, amino acids and fatty acids) in maize by strains of Aspergillus flavus and Fusarium verticillioides under different water ...
Fungal volatile fingerprints: discrimination between dermatophyte species and strains by means of an electronic nose.

Sahgal, Natasha; Magan, Naresh (Elsevier, 2008-04-14)

The potential of an electronic nose (e-nose) consisting of a hybrid gas sensor array system has been examined for species discrimination and strain identification of dermatophytes which are causative pathogens for human ...
The future of early disease detection? Applications of electronic nose technology in otolaryngology

Charaklias, N; Raja, Hamzah R. I.; Humphreys, M. L.; Magan, Naresh; Kendall, Catherine (Cambridge University Press, 2010-12-31)

Introduction: Recent advances in electronic nose technology, and successful clinical applications, are facilitating the development of new methods for rapid, bedside diagnosis of disease. There is a real clinical need ...
Geostatistical analysis of the spatial distribution of mycotoxin concentration in bulk cereals

Rivas Casado, Monica; Parsons, David J.; Weightman, R. M.; Magan, Naresh; Origgi, S. (Taylor & Francis, 2009-06-30)

Deoxynivalenol (DON) and ochratoxin A (OTA) in agricultural commodities present hazards to human and animal health. Bulk lots are routinely sampled for their presence, but it is widely acknowledged that designing sampling ...
Impact of environmental factors on growth and satratoxin G production by strains of Stachybotrys chartarum

Frazer, Schale; Pestka, James J.; Kim, Jae-Kyung; Medina-Vayá, Ángel; Aldred, David; Magan, Naresh (Wageningen Academic Publishers, 2012-12-31)

The black mould Stachybotrys chartarum and its mycotoxins have been linked to damp building-associated illnesses. The objective of this study was to determine the effects of water availability (water activity, aw) and ...

Browsing Staff publications - Cranfield Health by Author "Magan, Naresh"

Browsing Staff publications - Cranfield Health by Author "Magan, Naresh"

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