Mycetobiont symbiotic algae of wood-decomposing fungi

Мухин, В. А.; Патова, Е. Н.; Kiseleva, Irina; Neustroeva, N. V.; Novakovskaya, I. V.

doi:10.1134/s1067413616020089

Cited by 7 publications

(7 citation statements)

References 3 publications

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“…A. nidulans and C. reinhardtii may well have retained the capabilities of their lichen-forming ancestors to form a kind of algal–fungal mutualism. For C. reinhardtii , this is not surprising because species of the genus Chlamydomonas have been previously identified as mycetobiont algae in lichen-like symbiotic associations of wood-decaying fungi [ 66 ].…”

Section: Discussionmentioning

confidence: 99%

Lichen-like association of Chlamydomonas reinhardtii and Aspergillus nidulans protects algal cells from bacteria

et al. 2020

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Organismal interactions within microbial consortia and their responses to harmful intruders remain largely understudied. An important step toward the goal of understanding functional ecological interactions and their evolutionary selection is the study of increasingly complex microbial interaction systems. Here, we discovered a tripartite biosystem consisting of the fungus Aspergillus nidulans, the unicellular green alga Chlamydomonas reinhardtii, and the algicidal bacterium Streptomyces iranensis. Genetic analyses and MALDI-IMS demonstrate that the bacterium secretes the algicidal compound azalomycin F upon contact with C. reinhardtii. In co-culture, A. nidulans attracts the motile alga C. reinhardtii, which becomes embedded and surrounded by fungal mycelium and is shielded from the algicide. The filamentous fungus Sordaria macrospora was susceptible to azalomycin F and failed to protect C. reinhardtii despite chemotactically attracting the alga. Because S. macrospora was susceptible to azalomycin F, this data imply that for protection the fungus needs to be resistant. Formation of the lichen-like association between C. reinhardtii and A. nidulans increased algal growth. The protection depends on the increased amounts of membrane lipids provided by resistant fungi, thereby generating a protective shelter against the bacterial toxin. Our findings reveal a strategy whereby algae survive lethal environmental algicides through cooperation with fungi.

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Section: Discussionmentioning

confidence: 99%

Lichen-like association of Chlamydomonas reinhardtii and Aspergillus nidulans protects algal cells from bacteria

et al. 2020

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“…We find it possible to characterize the relationship between the algae and wood-decaying fungi as associative symbiosis, and their symbiotic associations as lichen-like (Neustroeva and Mukhin 2013;Mukhin et al 2018a). The mutually beneficial nature of the relationship between the algae and fungi is quite obvious: the algae receive some protection from the environment, as well as carbon dioxide and water produced by fungi, and the fungi receive an additional nutrition source of carbon and nitrogen (Zavada et al 2004;Neustroeva and Mukhin 2013;Mukhin et al 2016Mukhin et al , 2018b. The Occurrence and Checklist datasets of algae inhabiting the basidiocarps of wood-decaying Basidiomycetes in the Central Ural were uploaded to the Global Biodiversity Information Facility, GBIF (Neustroeva et al 2020a(Neustroeva et al , 2020b.…”

Section: Discussionmentioning

confidence: 99%

“…In 2012-2019, we carried out a large-scale special research on the biodiversity of algae inhabiting the basidiocarps of wood-decaying fungi (Basidiomycota, Agaricomycetes) in the Central Ural. The results were partially published (Mukhin et al 2016(Mukhin et al , 2018a(Mukhin et al , 2018bNeustroeva et al 2017). In the present paper, annotated list of the algae inhabiting the basidiocarps of wood-decaying fungi in the Central Ural is presented for the first time.…”

Section: Introductionmentioning

confidence: 96%

Biodiversity of symbiotic algae of wood decay Basidimycetes in the Central Urals

Neustroeva¹,

Мухин²,

Novakovskaya³

et al. 2020

ARPHA Proceedings

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This article presents a list of 57 algae species inhabiting the basidiocarps of wood-decaying Basidiomycetes in the forests of the Central Ural. It includes 54 species of eukaryotic (45-Chlorophyta, 5-Charophyta, 4-Ochrophyta) and 3 prokaryotic algae. Chlorophyta is the obligate component of mycobiont algal communities, all other algae groups are their optional part. Among the mycetobiont algae, unicellular coccoid algae prevail (48%), other types are less common: trichal (25%), colonial (18%), and monadic (9%). Among algae are no specialized mycobiont species and all of them are widespread soil and epiphytic algae as well as photobionts of ascolichens, which demonstrates the facultative nature of their symbiotic relationship with wood-decaying fungi. As a rule, algae inhabit annual basidiocarps and they do not manifest specificity to fungi species. The widest host-fungi spectrum of Pseudococcomyxa simplex occurs in the basidiocarps of 15 species. Stichococcus bacillaris and Interfilum terricola were found in the basidiocarps of 13 and 11 fungi species correspondingly. The largest numbers of algae species were found in the basidiocarps of Cerrena unicolor (24), Trametes gibbosa (12), Trichaptum abietinum (11), T. biforme (22), T. fuscoviolaceum (17), Stereum hirsutum (11) and S. subtomentosum (19). The Occurrence and Checklist datasets of algae inhabiting the basidiocarps of wood-decaying Basidiomycetes in the Central Ural were uploaded to the GBIF.

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“…Seit längerem ist bekannt, dass A. nidulans ‐Mutanten, die kein Nitrit mehr assimilieren können, durch C. reinhardtii mit Nitrit versorgt werden können. Eine assoziative, d. h. fakultative, Flechten‐ähnliche Symbiose besteht zudem zwischen verschiedenen holzabbauenden Ständerpilzen (Basidiomyceten), wie dem Zunderschwamm ( Fomes fomentarius ), und verschiedenen Arten von Cyanobakterien und Algen, u. a. aus der Gattung Chlamydomonas , bei der der Pilz von der Alge Assimilate erhält und diese im Gegenzug vor hoher Sonneneinstrahlung und Austrocknung schützt [2].…”

Section: Cui Bono?unclassified

Verflechtung zwischen Chlamydomonas und Aspergillus

Sander

2020

Biologie in unserer Zeit

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Mycetobiont symbiotic algae of wood-decomposing fungi

Cited by 7 publications

References 3 publications

Lichen-like association of Chlamydomonas reinhardtii and Aspergillus nidulans protects algal cells from bacteria

Lichen-like association of Chlamydomonas reinhardtii and Aspergillus nidulans protects algal cells from bacteria

Biodiversity of symbiotic algae of wood decay Basidimycetes in the Central Urals

Verflechtung zwischen Chlamydomonas und Aspergillus

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