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Browsing Staff publications - Cranfield Health by Author "Geisen, Rolf"

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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. ...
Modelling the relationship between environmental factors, transcriptional genes and deoxynivalenol mycotoxin production by strains of two Fusarium species

Schmidt-Heydt, Markus; Parra, Roberto; Geisen, Rolf; Magan, Naresh (2011-01-06)

The effect of changes in temperature/water activity (a(w)) on growth, deoxynivalenol (DON) production and trichothecene gene cluster expression (18 genes) for strains of Fusarium culmorum and Fusarium graminearum was ...
The production of aflatoxin B1 or G1 by Aspergillus parasiticus at various combinations of temperature and water activity is related to the ratio of aflS to aflR expression

Schmidt-Heydt, Markus; Rüfer, C. E.; Abdel-Hadi, Ahmed; Magan, Naresh; Geisen, Rolf (Mycotoxin Research, 2010-11-01)

The influence of varying combinations of wateractivity (aw) and temperature on growth, aflatoxin biosynthesisand aflR/aflS expression of Aspergillus parasiticuswas analysed in the ranges 17-42°C and 0.90-0.99 aw.Optimum ...
A systems approach to model the relationship between aflatoxin gene cluster expression, environmental factors, growth and toxin production by Aspergillus flavus.

Abdel-Hadi, Ahmed; Schmidt-Heydt, Markus; Parra, Roberto; Geisen, Rolf; Magan, Naresh (2012-04-07)

A microarray analysis was used to examine the effect of combinations of water activity (a(w), 0.995-0.90) and temperature (20-42°C) on the activation of aflatoxin biosynthetic genes (30 genes) in Aspergillus flavus grown ...

Browsing Staff publications - Cranfield Health by Author "Geisen, Rolf"

Browsing Staff publications - Cranfield Health by Author "Geisen, Rolf"

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