Integrative analyses reveal transcriptome-proteome correlation in biological pathways and secondary metabolism clusters in A. flavus in response to temperature

To investigate the changes in transcript and relative protein levels in response to temperature, complementary transcriptomic and proteomic analyses were used to identify changes in Aspergillus flavus grown at 28 °C and 37 °C. A total of 3,886 proteins were identified and 2,832 proteins were reliabl...

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Bibliographic Details
Published in:Scientific reports 2015-09, Vol.5 (1), p.14582-14582, Article 14582
Main Authors: Bai, Youhuang, Wang, Sen, Zhong, Hong, Yang, Qi, Zhang, Feng, Zhuang, Zhenhong, Yuan, Jun, Nie, Xinyi, Wang, Shihua
Format: Article
Language:English
Subjects:
38/39
45/77
49/91
631/326/193/2541
631/61/475
631/61/514/1949
Aflatoxins - biosynthesis
Aflatoxins - genetics
Aspergillus flavus - genetics
Fungal Proteins - genetics
Gene Expression Profiling
Gene Expression Regulation, Fungal
Gene Ontology
Gene Regulatory Networks
Humanities and Social Sciences
Metabolic Networks and Pathways
Molecular Sequence Annotation
multidisciplinary
Protein Interaction Mapping
Proteome - genetics
RNA, Messenger - genetics
Science
Temperature
Transcriptional Activation
Transcriptome
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Summary:To investigate the changes in transcript and relative protein levels in response to temperature, complementary transcriptomic and proteomic analyses were used to identify changes in Aspergillus flavus grown at 28 °C and 37 °C. A total of 3,886 proteins were identified and 2,832 proteins were reliably quantified. A subset of 664 proteins was differentially expressed upon temperature changes and enriched in several Kyoto Encyclopedia of Genes and Genomes pathways: translation-related pathways, metabolic pathways and biosynthesis of secondary metabolites. The changes in protein profiles showed low congruency with alterations in corresponding transcript levels, indicating that post-transcriptional processes play a critical role in regulating the protein level in A. flavus . The expression pattern of proteins and transcripts related to aflatoxin biosynthesis showed that most genes were up-regulated at both the protein and transcript level at 28 °C. Our data provide comprehensive quantitative proteome data of A. flavus at conducive and nonconducive temperatures.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep14582