Phylogenetic diversity and bioactivity of culturable deep-sea-derived fungi from Okinawa Trough

Zhang, Xiaoyong; Li, Yiyang; Yu, Zonghe; Xiao, Liang; Qi, Shu‐Hua

doi:10.1007/s00343-020-0003-z

Cited by 9 publications

(3 citation statements)

References 67 publications

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“…The first fungus isolated from the Mariana Trench was reported by Takami 13 . Since then, a number of fungi species have been isolated from the deep ocean 10 , 14 – 19 . More and more bioactive compounds isolated from deep-sea derived fungi have been published 20 .…”

Section: Introductionmentioning

confidence: 99%

High hydrostatic pressure shapes the development and production of secondary metabolites of Mariana Trench sediment fungi

Peng

Deng

et al. 2021

Sci Rep

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The hadal biosphere is one of the least understood ecosystems on our planet. Recent studies have revealed diverse and active communities of prokaryotes in hadal sediment. However, there have been few studies on fungi in hadal sediment. Here we report the first isolation and cultivation of 8 fungi from the Mariana Trench sediment. The individual colonies were isolated and identified as Stemphylium sp., Cladosporium sp., Arthrinium sp., Fusarium sp., Alternaria sp., and Aspergillus sp. High hydrostatic pressure (HHP) test was carried out to identify the piezophily of these hadal fungi. Among them, 7 out of the 8 fungal isolates exhibited the ability of germination after incubation under 40 MPa for 7 days. Vegetative growth of the isolates was also affected by HHP. Characterization of secondary metabolites under different pressure conditions was also performed. The production of secondary metabolites was affected by the HHP treatment, improving the potential of discovering novel natural products from hadal fungi. The antibacterial assay revealed the potential of discovering novel natural products. Our results suggest that fungal growth pressure plays an important role in the development and production of secondary metabolites of these hadal fungi under the extreme environment in the Mariana Trench.

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Section: Introductionmentioning

confidence: 99%

High hydrostatic pressure shapes the development and production of secondary metabolites of Mariana Trench sediment fungi

Peng

Deng

et al. 2021

Sci Rep

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“…The most abundant genera were Penicillium (13.2%), Aspergillus (7.3%), Trichoderma (7.3%), Talaromyces (5%), and Cladosporium (5%). Several investigations reported [44,45] these genera as the most abundant in marine sediments [40,46,51,54,[58][59][60][61][62]. The same genera are also frequently found in fungal communities recovered from oil polluted sites such as LH [40,46,51,59,62], confirming the structure of the mycobiota of contaminated port sediments, including the presence of different Aspergillus spp.…”

Section: Fungi From Ssmentioning

confidence: 60%

The Culturable Mycobiota of Sediments and Associated Microplastics: From a Harbor to a Marine Protected Area, a Comparative Study

Furno

Poli

Ferrero

et al. 2022

JoF

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Fungi are an essential component of marine ecosystems, although little is known about their global distribution and underwater diversity, especially in sediments. Microplastics (MPs) are widespread contaminants worldwide and threaten the organisms present in the oceans. In this study, we investigated the fungal abundance and diversity in sediments, as well as the MPs, of three sites with different anthropogenic impacts in the Mediterranean Sea: the harbor of Livorno, the marine protected area “Secche della Meloria”; and an intermediate point, respectively. A total of 1526 isolates were cultured and identified using a polyphasic approach. For many of the fungal species this is the first record in a marine environment. A comparison with the mycobiota associated with the sediments and MPs underlined a “substrate specificity”, highlighting the complexity of MP-associated fungal assemblages, potentially leading to altered microbial activities and hence changes in ecosystem functions. A further driving force that acts on the fungal communities associated with sediments and MPs is sampling sites with different anthropogenic impacts.

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“…Plates were incubated at 28 °C for five days prior to selection of single colonies. A total of 74 such single colonies were chosen for further purification and subsequently identified according to previously described protocols [68]. Hierarchical clustering was performed on the phylogenetic tree generated for the sequences obtained from recovered fungal isolates together with OTUs that were most responsive to resistant banana varieties (OTU1 and OTU2), using the MEGA7 software package.…”

Section: Fungal Strain Isolation and Assays Of Pathogen Suppressionmentioning

confidence: 99%

Plant pathogen resistance is mediated by recruitment of specific rhizosphere fungi

et al. 2023

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Beneficial interactions between plants and rhizosphere microorganisms are key determinants of plant health with the potential to enhance the sustainability of agricultural practices. However, pinpointing the mechanisms that determine plant disease protection is often difficult due to the complexity of microbial and plant-microbe interactions and their links with the plant’s own defense systems. Here, we found that the resistance level of different banana varieties was correlated with the plant’s ability to stimulate specific fungal taxa in the rhizosphere that are able to inhibit the Foc TR4 pathogen. These fungal taxa included members of the genera Trichoderma and Penicillium, and their growth was stimulated by plant exudates such as shikimic acid, D-(-)-ribofuranose, and propylene glycol. Furthermore, amending soils with these metabolites enhanced the resistance of a susceptible variety to Foc TR4, with no effect observed for the resistant variety. In total, our findings suggest that the ability to recruit pathogen-suppressive fungal taxa may be an important component in determining the level of pathogen resistance exhibited by plant varieties. This perspective opens up new avenues for improving plant health, in which both plant and associated microbial properties are considered.

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Phylogenetic diversity and bioactivity of culturable deep-sea-derived fungi from Okinawa Trough

Cited by 9 publications

References 67 publications

High hydrostatic pressure shapes the development and production of secondary metabolites of Mariana Trench sediment fungi

High hydrostatic pressure shapes the development and production of secondary metabolites of Mariana Trench sediment fungi

The Culturable Mycobiota of Sediments and Associated Microplastics: From a Harbor to a Marine Protected Area, a Comparative Study

Plant pathogen resistance is mediated by recruitment of specific rhizosphere fungi

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