Browsing by Author "Parra, Roberto"

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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 ...
Water activity, solute and temperature modify growth and spore production of wild type and genetically engineered Aspergillus niger strains.

Parra, Roberto; Aldred, David; Archer, David B.; Magan, Naresh (Elsevier, 2004-08-05)

The effect of interactions of water activity (aw) (0.99–0.90), temperature (20, 30 and 35 °C) and modifying aw solute (glycerol, NaCl) on growth and sporulation of a wild-type strain of Aspergillus niger (W) and two ...

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