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The filamentous fungal pelletrelationship between morphology and productivity
AuthorVeiter, Lukas ; Rajamanickam, Vignesh ; Herwig, Christoph
Published in
Applied Microbiology and Biotechnology, 2018, Vol. 102, Issue 7, page 2997-3006
PublishedSpringer Nature, 2018
Document typeJournal Article
Keywords (EN)Fungal pellet morphology / Interlinks between productivity and morphology / Variability and alteration of morphology / Analysis of morphology
URNurn:nbn:at:at-ubtuw:3-5011 Persistent Identifier (URN)
 The work is publicly available
The filamentous fungal pelletrelationship between morphology and productivity [1.16 mb]
Abstract (English)

Filamentous fungi are used for the production of a multitude of highly relevant biotechnological products like citric acid and penicillin. In submerged culture, fungi can either grow in dispersed form or as spherical pellets consisting of aggregated hyphal structures. Pellet morphology, process control and productivity are highly interlinked. On the one hand, process control in a bioreactor usually demands for compact and small pellets due to rheological issues. On the other hand, optimal productivity might be associated with less dense and larger morphology. Over the years, several publications have dealt with aforementioned relations within the confines of specific organisms and products. However, contributions which evaluate such interlinkages across several fungal species are scarce. For this purpose, we are looking into methods to manipulate fungal pellet morphology in relation to individual species and products. This review attempts to address (i) how variability of pellet morphology can be assessed and (ii) how morphology is linked to productivity. Firstly, the mechanism of pellet formation is outlined. Subsequently, the description and analysis of morphological variations are discussed to finally establish interlinkages between productivity, performance and morphology across different fungal species.

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