Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 562951
Title Colonies of the fungus Aspergillus niger are highly differentiated to adapt to local carbon source variation
Author(s) Daly, Paul; Peng, Mao; Mitchell, Hugh D.; Kim, Young Mo; Ansong, Charles; Brewer, Heather; Gijsel, Peter de; Lipton, Mary S.; Markillie, Lye Meng; Nicora, Carrie D.; Orr, Galya; Wiebenga, Ad; Hildén, Kristiina S.; Kabel, Mirjam A.; Baker, Scott E.; Mäkelä, Miia R.; Vries, Ronald P. de
Source Environmental Microbiology 22 (2020)3. - ISSN 1462-2912 - p. 1154 - 1166.
Department(s) Food Chemistry
Publication type Refereed Article in a scientific journal
Publication year 2020

Saprobic fungi, such as Aspergillus niger, grow as colonies consisting of a network of branching and fusing hyphae that are often considered to be relatively uniform entities in which nutrients can freely move through the hyphae. In nature, different parts of a colony are often exposed to different nutrients. We have investigated, using a multi-omics approach, adaptation of A. niger colonies to spatially separated and compositionally different plant biomass substrates. This demonstrated a high level of intra-colony differentiation, which closely matched the locally available substrate. The part of the colony exposed to pectin-rich sugar beet pulp and to xylan-rich wheat bran showed high pectinolytic and high xylanolytic transcript and protein levels respectively. This study therefore exemplifies the high ability of fungal colonies to differentiate and adapt to local conditions, ensuring efficient use of the available nutrients, rather than maintaining a uniform physiology throughout the colony.

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