Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091

Based on previous research, related to detailed insight into mutualistic collaboration of microalga and its microbiome, we established an artificial plant-bacteria system of the microalga Micrasterias radians MZCH 672 and the bacterial isolate Dyadobacter sp. HH091. The bacteria, affiliated with the...

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Main Authors: Yekaterina Astafyeva, Marno Gurschke, Wolfgang R. Streit, Ines Krohn
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-10-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2022.1006609/full
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author Yekaterina Astafyeva
Marno Gurschke
Wolfgang R. Streit
Ines Krohn
author_facet Yekaterina Astafyeva
Marno Gurschke
Wolfgang R. Streit
Ines Krohn
author_sort Yekaterina Astafyeva
collection DOAJ
description Based on previous research, related to detailed insight into mutualistic collaboration of microalga and its microbiome, we established an artificial plant-bacteria system of the microalga Micrasterias radians MZCH 672 and the bacterial isolate Dyadobacter sp. HH091. The bacteria, affiliated with the phylum Bacteroidota, strongly stimulated growth of the microalga when it was added to axenic algal cultures. For further advances, we studied the isolate HH091 and its interaction with the microalga M. radians using transcriptome and extensive genome analyses. The genome of HH091 contains predicted polysaccharide utilizing gene clusters co-working with the type IX secretion system (T9SS) and conceivably involved in the algae-bacteria liaison. Here, we focus on characterizing the mechanism of T9SS, implementing the attachment and invasion of microalga by Dyadobacter sp. HH091. Omics analysis exposed T9SS genes: gldK, gldL, gldM, gldN, sprA, sprE, sprF, sprT, porU and porV. Besides, gld genes not considered as the T9SS components but required for gliding motility and protein secretion (gldA, gldB, gldD, gldF, gldG, gldH, gldI, gldJ), were also identified at this analysis. A first model of T9SS apparatus of Dyadobacter was proposed in a course of this research. Using the combination of fluorescence labeling of Dyadobacter sp. HH091, we examined the bacterial colonisation and penetration into the cell wall of the algal host M. radians MZCH 672.
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spelling doaj.art-92f188aa7a6a4260b14c45562142429e2022-12-22T04:13:39ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2022-10-011310.3389/fmicb.2022.10066091006609Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091Yekaterina AstafyevaMarno GurschkeWolfgang R. StreitInes KrohnBased on previous research, related to detailed insight into mutualistic collaboration of microalga and its microbiome, we established an artificial plant-bacteria system of the microalga Micrasterias radians MZCH 672 and the bacterial isolate Dyadobacter sp. HH091. The bacteria, affiliated with the phylum Bacteroidota, strongly stimulated growth of the microalga when it was added to axenic algal cultures. For further advances, we studied the isolate HH091 and its interaction with the microalga M. radians using transcriptome and extensive genome analyses. The genome of HH091 contains predicted polysaccharide utilizing gene clusters co-working with the type IX secretion system (T9SS) and conceivably involved in the algae-bacteria liaison. Here, we focus on characterizing the mechanism of T9SS, implementing the attachment and invasion of microalga by Dyadobacter sp. HH091. Omics analysis exposed T9SS genes: gldK, gldL, gldM, gldN, sprA, sprE, sprF, sprT, porU and porV. Besides, gld genes not considered as the T9SS components but required for gliding motility and protein secretion (gldA, gldB, gldD, gldF, gldG, gldH, gldI, gldJ), were also identified at this analysis. A first model of T9SS apparatus of Dyadobacter was proposed in a course of this research. Using the combination of fluorescence labeling of Dyadobacter sp. HH091, we examined the bacterial colonisation and penetration into the cell wall of the algal host M. radians MZCH 672.https://www.frontiersin.org/articles/10.3389/fmicb.2022.1006609/fullDyadobacter sp. HH091Micrasterias radiansmicroalgaebacteria interactionsynthetic early plant-bacteria systemsymbiotic relations
spellingShingle Yekaterina Astafyeva
Marno Gurschke
Wolfgang R. Streit
Ines Krohn
Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091
Frontiers in Microbiology
Dyadobacter sp. HH091
Micrasterias radians
microalgaebacteria interaction
synthetic early plant-bacteria system
symbiotic relations
title Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091
title_full Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091
title_fullStr Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091
title_full_unstemmed Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091
title_short Interplay between the microalgae Micrasterias radians and its symbiont Dyadobacter sp. HH091
title_sort interplay between the microalgae micrasterias radians and its symbiont dyadobacter sp hh091
topic Dyadobacter sp. HH091
Micrasterias radians
microalgaebacteria interaction
synthetic early plant-bacteria system
symbiotic relations
url https://www.frontiersin.org/articles/10.3389/fmicb.2022.1006609/full
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