The Marine-Derived Filamentous Fungi in Biotechnology

Nicoletti, Rosario; Andolfi, Anna

doi:10.1007/978-3-319-69075-9_4

Cited by 16 publications

(11 citation statements)

References 260 publications

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“…Fungal OTUs identified within five taxonomic groups consistently dominated fungal assemblages across all microenvironments and sites (Figures 11, 12). This is consistent with the hypothesis of extreme ecological flexibility acclaimed for obligate marine fungal species (Nicoletti and Andolfi, 2018). Explicitly, OTUs matching the order Pleosporales (468 unique OTUs) and the species Wallemia ichthyophaga (58 unique OTUs) represented the most abundant fungi across all six microenvironments, making up an average of 59 and 15% of these communities, respectively (Figure 11, 12).…”

Section: Resultssupporting

confidence: 92%

Regional and Microenvironmental Scale Characterization of the Zostera muelleri Seagrass Microbiome

et al. 2019

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Seagrasses are globally distributed marine plants that represent an extremely valuable component of coastal ecosystems. Like terrestrial plants, seagrass productivity and health are likely to be strongly governed by the structure and function of the seagrass microbiome, which will be distributed across a number of discrete microenvironments within the plant, including the phyllosphere, the endosphere and the rhizosphere, all different in physical and chemical conditions. Here we examined patterns in the composition of the microbiome of the seagrass Zostera muelleri , within six plant-associated microenvironments sampled across four different coastal locations in New South Wales, Australia. Amplicon sequencing approaches were used to characterize the diversity and composition of bacterial, microalgal, and fungal microbiomes and ultimately identify “core microbiome” members that were conserved across sampling microenvironments. Discrete populations of bacteria, microalgae and fungi were observed within specific seagrass microenvironments, including the leaves and roots and rhizomes, with “core” taxa found to persist within these microenvironments across geographically disparate sampling sites. Bacterial, microalgal and fungal community profiles were most strongly governed by intrinsic features of the different seagrass microenvironments, whereby microscale differences in community composition were greater than the differences observed between sampling regions. However, our results showed differing strengths of microbial preferences at the plant scale, since this microenvironmental variability was more pronounced for bacteria than it was for microalgae and fungi, suggesting more specific interactions between the bacterial consortia and the seagrass host, and potentially implying a highly specialized coupling between seagrass and bacterial metabolism and ecology. Due to their persistence within a given seagrass microenvironment, across geographically discrete sampling locations, we propose that the identified “core” microbiome members likely play key roles in seagrass physiology as well as the ecology and biogeochemistry of seagrass habitats.

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Section: Resultssupporting

confidence: 92%

Regional and Microenvironmental Scale Characterization of the Zostera muelleri Seagrass Microbiome

et al. 2019

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“…Moreover, it must also be considered that detection of some compounds is often impaired by their presence in low quantities, or by inherent difficulties in the identification depending on their infrequent occurrence. However, the finding of two species from both marine and terrestrial sources within such a limited strain sample supports a recently-consolidated inference that most fungal species are able to thrive in different environmental conditions, obliterating the old misconception that the occurrence of specialized taxa occurs in either marine or non-marine contexts [16,31,32]. 8-10, 13, and 25-27 have been only found in terrestrial strains.…”

Section: Fungal Sourcessupporting

confidence: 59%

Occurrence and Properties of Thiosilvatins

et al. 2019

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The spread of studies on biodiversity in different environmental contexts is particularly fruitful for natural product discovery, with the finding of novel secondary metabolites and structural models, which are sometimes specific to certain organisms. Within the large class of the epipolythiodioxopiperazines, which are typical of fungi, thiosilvatins represent a homogeneous family that, so far, has been reported in low frequency in both marine and terrestrial contexts. However, recent observations indicate that these compounds have been possibly neglected in the metabolomic characterization of fungi, particularly from marine sources. Aspects concerning occurrence, bioactivities, structural, and biosynthetic properties of thiosilvatins are reviewed in this paper.

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“…Marine-derived fungi are promising microorganisms to be utilized for biotechnological applications, thanks to unique properties they acquired through their adaptation to extreme environmental conditions, such as high salinity, low oxygen concentration, high pressure, temperature, and low nutrient availability [11,16]. So far, marine-derived fungi have been employed for the bioremediation of crude oil components, like polycyclic aromatic hydrocarbons (PAHs— phenanthrene, pyrene, benzo[a]pyrene) and aliphatic alkenes, but also 1,4,6-trinitrotoluene and hexahydro-1,3,5-trinitro-1,3,5-triazine, originating from unexploded ordnance [16,17,18]. There are also some reports regarding the degradation of pesticides—most of them chlorinated compounds—like 1,1-dichloro-2,2-bis-(4-chlorophenyl)ethane (DDD), esfenvalerate, dieldrin, and methyl parathion [16].…”

Section: Resultsmentioning

confidence: 99%

Unraveling the Detoxification Mechanism of 2,4-Dichlorophenol by Marine-Derived Mesophotic Symbiotic Fungi Isolated from Marine Invertebrates

et al. 2019

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Chlorophenols (CPs) are environmental pollutants that are produced through various anthropogenic activities and introduced in the environment. Living organisms, including humans, are exposed to these toxic xenobiotics and suffer from adverse health effects. More specifically, 2,4-dichlorophenol (2,4-DCP) is released in high amounts in the environment and has been listed as a priority pollutant by the US Environmental Protection Agency. Bioremediation has been proposed as a sustainable alternative to conventional remediation methods for the detoxification of phenolic compounds. In this work, we studied the potential of fungal strains isolated as symbionts of marine invertebrates from the underexplored mesophotic coral ecosystems. Hence, the unspecific metabolic pathways of these fungal strains are being explored in the present study, using the powerful analytical capabilities of a UHPLC-HRMS/MS. The newly identified 2,4-DCP metabolites add significantly to the knowledge of the transformation of such pollutants by fungi, since such reports are scarce.

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The Marine-Derived Filamentous Fungi in Biotechnology

Cited by 16 publications

References 260 publications

Regional and Microenvironmental Scale Characterization of the Zostera muelleri Seagrass Microbiome

Regional and Microenvironmental Scale Characterization of the Zostera muelleri Seagrass Microbiome

Occurrence and Properties of Thiosilvatins

Unraveling the Detoxification Mechanism of 2,4-Dichlorophenol by Marine-Derived Mesophotic Symbiotic Fungi Isolated from Marine Invertebrates

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