lipids in aspergillus flavus-maize interaction

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ID: 245863
2014
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Ranked #441 of 875 articles by views in journal of magnetic resonance (san diego, calif : 1997)

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Abstract
In sSome filamentous fungi, the pathways related to the oxidative stress and oxylipins production are involved both in the process of host-recognition of the host that and in the pathogenic phase. In fact, recent studies have shown that the production of oxylipins in filamentous fungi, yeasts and chromists is also related to the development of the organism itself and to mechanisms of communication with the host at the cellular level. The oxylipins, also involved produced in by the host during defense reactions, are able to induce sporulation and to modulate regulate the biosynthesis of mycotoxins in numerous several pathogenic fungi, apparently replacing the endogenous ones. In A. flavus, the oxylipins play a crucial role as signals for the regulation regulatingof the biosynthesis of aflatoxins, the conidiogenesis and the formation of sclerotia.
To investigate the involvement of the an oxylipins based cross-talk into Z. mays and A. flavus interaction, we analyzed the oxylipins profile of the wild type strain and of three mutants of A. flavus that are deleted at the Aflox1 gene level also during maize kernel invasion; Aflox1 encodes for a manganese lipoxygenase.
A lipidomic approach has been addressed through the use of LC-ToF-MS, followed by a statistical analysis of the principal components (PCA). The results showed the existence of a difference between the oxylipins profile generated by the WT and the mutants onto challenged maize. In relation to this, aflatoxin synthesis which is largely hampered in vitro, is intriguingly restored. These results highlight the important role of maize oxylipin in driving secondary metabolism in A. flavus.
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ereverberi2014frontierslipids Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Massimo eReverberi;marzia escarpari;emanuela ecamera;matteo eludovici;chiara enobili;marta epunelli;marco ezaccaria;valeria escala;corrado efanelli;anna adele fabbri
Journal journal of magnetic resonance (san diego, calif : 1997)
Year 2014
DOI
10.3389/fmicb.2014.00074
URL
http://journal.frontiersin.org/Journal/10.3389/fmicb.2014.00074/full
Keywords
aflatoxins lipoxygenase lipidomic reverse geneticmicrobiology

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