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Sallenave‐Namont, Claire; Pouchus, Yves François; Pont, Thibaut Robiou du; Lassus, Patrick; Verbist, Jean-François

doi:10.1023/a:1007259810190

Cited by 55 publications

(39 citation statements)

References 6 publications

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“…Next-generation sequencing-based studies are rare, except Arfi et al (2012) who investigated the anoxic mangrove sediments of Saint Vincent Bay, and revealed that Agaricomycetes was the dominant fungal class. As a result, insufficient information on the fungal community in the sediment of intertidal ecosystems is hindering our understanding of their ecological functions (González et al, 1998; Sallenave-Namont et al, 2000; Rämä et al, 2014). …”

Section: Introductionmentioning

confidence: 99%

A High-Level Fungal Diversity in the Intertidal Sediment of Chinese Seas Presents the Spatial Variation of Community Composition

Wang

Bian

et al. 2016

Front. Microbiol.

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The intertidal region is one of the most dynamic environments in the biosphere, which potentially supports vast biodiversity. Fungi have been found to play important roles in marine ecosystems, e.g., as parasites or symbionts of plants and animals, and as decomposers of organic materials. The fungal diversity in intertidal region, however, remains poorly understood. In this study, sediment samples from various intertidal habitats of Chinese seas were collected and investigated for determination of fungal community and spatial distribution. Through ribosomal RNA internal transcribed spacer-2 (ITS2) metabarcoding, a high-level fungal diversity was revealed, as represented by 6,013 OTUs that spanned six phyla, 23 classes, 84 orders and 526 genera. The presence of typical decomposers (e.g., Corollospora in Ascomycota and Lepiota in Basidiomycota) and pathogens (e.g., Olpidium in Chytriomycota, Actinomucor in Zygomycota and unidentified Rozellomycota spp.), and even mycorrhizal fungi (e.g., Glomus in Glomeromycota) indicated a complicated origin of intertidal fungi. Interestingly, a small proportion of sequences were classified to obligate marine fungi (e.g., Corollospora, Lignincola, Remispora, Sigmoidea). Our data also showed that the East China Sea significantly differed from other regions in terms of species richness and community composition, indicating a profound effect of the huge discharge of the Yangtze River. No significant difference in fungal communities was detected, however, among habitat types (i.e., aquaculture, dock, plant, river mouth and tourism). These observations raise further questions on adaptation of these members to environments and the ecological functions they probably perform.

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Section: Introductionmentioning

confidence: 99%

A High-Level Fungal Diversity in the Intertidal Sediment of Chinese Seas Presents the Spatial Variation of Community Composition

Wang

Bian

et al. 2016

Front. Microbiol.

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“…Aspergillus, Penicillium, Trichoderma and Cladosporium ). Therefore, the study conducted by Sallenave-Namont et al (2000) confirmed the existence of fungi producing mycotoxins in shellfish farming areas in France.…”

Section: Aetiology and Effects Of Shell Disease In Molluscsmentioning

confidence: 83%

“…Sallenave-Namont et al (2000) isolated possible toxigenic saprotrophic fungi from samples of shellfish ( Cerastoderma edule, Mytilus edulis ), sediments and seawater from shellfish farming areas and from natural shellfish beds along the coast of France. Filtrates from the media used to grow the fungi were tested for their effects on larvae of the small crustacean Artemia salinus , which is highly sensitive to mycotoxins.…”

Section: Aetiology and Effects Of Shell Disease In Molluscsmentioning

confidence: 99%

The roles of endolithic fungi in bioerosion and disease in marine ecosystems. II. Potential facultatively parasitic anamorphic ascomycetes can cause disease in corals and molluscs

et al. 2017

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Anamorphic ascomycetes have been implicated as causative agents of diseases in tissues and skeletons of hard corals, in tissues of soft corals (sea fans) and in tissues and shells of molluscs. Opportunist marine fungal pathogens, such as Aspergillus sydowii, are important components of marine mycoplankton and are ubiquitous in the open oceans, intertidal zones and marine sediments. These fungi can cause infection in or at least can be associated with animals which live in these ecosystems. A. sydowii can produce toxins which inhibit photosynthesis in and the growth of coral zooxanthellae. The prevalence of many documented infections has increased in frequency and severity in recent decades with the changing impacts of physical and chemical factors, such as temperature, acidity and eutrophication. Changes in these factors are thought to cause significant loss of biodiversity in marine ecosystems on a global scale in general, and especially in coral reefs and shallow bays.

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“…-Trichoderma species have been isolated before from marine sediments in Japan and South China [24], and in France [7]. Their ability to grow in hypersaline environment has been demonstrated under laboratory marine-like culture conditions [8], but they have never been directly observed in the natural marine environment.…”

Section: Mass-spectrometric Elucidation Of Peptaibol Structures and Smentioning

confidence: 99%

“…The hypothesis of a fungal contamination with a production of toxic metabolites has been proposed. Isolation of fungi from shellfish and sediments collected in farming areas showed that numerous saprophytic strains -mainly belonging to the genera Aspergillus, Penicillium, or Trichoderma -were present in these zones [7]. Toxicities of these strains were studied using different biological tests on laboratory cultures realized in marine-like conditions.…”

mentioning

confidence: 99%

Peptaibols: Stable Markers of Fungal Development in the Marine Environment

Poirier

Montagu

Landreau

et al. 2007

Chemistry & Biodiversity

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Different peptaibols were observed in both fresh and frozen marine sediments collected from a marine area devoted to bivalve culture (Fier d'Ars, Atlantic coast, France). The identification of the peptaibols was based on a three-step mass-spectrometric analysis: observation of doubly charged ions with a characteristic isotopic profile, cleavage and observation of C- and N-terminal fragments, and partial sequencing of the N-terminal segments. The MS characteristics indicated numerous similarities between the peptaibols detected and those produced by different strains of Trichoderma species isolated from fresh sediments. Peptaibols were also detected in mussel samples collected at the same site. This constitutes the first observation of contamination of the marine human-food chain by fungal metabolites. Since peptaibols were readily observed both in fresh sediments and in samples kept frozen for several years, these compounds can be considered as stable markers of the development of Trichoderma in the marine environment.

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Cited by 55 publications

References 6 publications

A High-Level Fungal Diversity in the Intertidal Sediment of Chinese Seas Presents the Spatial Variation of Community Composition

A High-Level Fungal Diversity in the Intertidal Sediment of Chinese Seas Presents the Spatial Variation of Community Composition

The roles of endolithic fungi in bioerosion and disease in marine ecosystems. II. Potential facultatively parasitic anamorphic ascomycetes can cause disease in corals and molluscs

Peptaibols: Stable Markers of Fungal Development in the Marine Environment

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