Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities

Abstract Algal‐associated bacteria are fundamental to the ecological success of marine green macroalgae such as Caulerpa. The resistance and resilience of algal‐associated microbiota to environmental stress can promote algal health and genetic adaptation to changing environments. The composition of...

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Autores principales:	Kathryn Lee Morrissey, Ljiljana Iveša, Soria Delva, Sofie D'Hondt, Anne Willems, Olivier De Clerck
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	climate change Holobiont morphological niche resilience resistance Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/59d0c62d65b141f191b7ddd5fabcb105
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spelling	oai:doaj.org-article:59d0c62d65b141f191b7ddd5fabcb1052021-11-08T17:10:41ZImpacts of environmental stress on resistance and resilience of algal‐associated bacterial communities2045-775810.1002/ece3.8184https://doaj.org/article/59d0c62d65b141f191b7ddd5fabcb1052021-11-01T00:00:00Zhttps://doi.org/10.1002/ece3.8184https://doaj.org/toc/2045-7758Abstract Algal‐associated bacteria are fundamental to the ecological success of marine green macroalgae such as Caulerpa. The resistance and resilience of algal‐associated microbiota to environmental stress can promote algal health and genetic adaptation to changing environments. The composition of bacterial communities has been shown to be unique to algal morphological niches. Therefore, the level of response to various environmental perturbations may in fact be different for each niche‐specific community. Factorial in situ experiments were set up to investigate the effect of nutrient enrichment and temperature stress on the bacterial communities associated with Caulerpa cylindracea. Bacteria were characterized using the 16S rRNA gene, and the community compositions were compared between different parts of the algal thallus (endo‐, epi‐, and rhizomicrobiome). Resistance and resilience were calculated to further understand the changes of microbial composition in response to perturbations. The results of this study provide evidence that nutrient enrichment has a significant influence on the taxonomic and functional structure of the epimicrobiota, with a low community resistance index observed for both. Temperature and nutrient stress had a significant effect on the rhizomicrobiota taxonomic composition, exhibiting the lowest overall resistance to change. The functional performance of the rhizomicrobiota had low resilience to the combination of stressors, indicating potential additive effects. Interestingly, the endomicrobiota had the highest overall resistance, yet the lowest overall resilience to environmental stress. This further contributes to our understanding of algal microbiome dynamics in response to environmental changes.Kathryn Lee MorrisseyLjiljana IvešaSoria DelvaSofie D'HondtAnne WillemsOlivier De ClerckWileyarticleclimate changeHolobiontmorphological nicheresilienceresistanceEcologyQH540-549.5ENEcology and Evolution, Vol 11, Iss 21, Pp 15004-15019 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate change Holobiont morphological niche resilience resistance Ecology QH540-549.5
spellingShingle	climate change Holobiont morphological niche resilience resistance Ecology QH540-549.5 Kathryn Lee Morrissey Ljiljana Iveša Soria Delva Sofie D'Hondt Anne Willems Olivier De Clerck Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities
description	Abstract Algal‐associated bacteria are fundamental to the ecological success of marine green macroalgae such as Caulerpa. The resistance and resilience of algal‐associated microbiota to environmental stress can promote algal health and genetic adaptation to changing environments. The composition of bacterial communities has been shown to be unique to algal morphological niches. Therefore, the level of response to various environmental perturbations may in fact be different for each niche‐specific community. Factorial in situ experiments were set up to investigate the effect of nutrient enrichment and temperature stress on the bacterial communities associated with Caulerpa cylindracea. Bacteria were characterized using the 16S rRNA gene, and the community compositions were compared between different parts of the algal thallus (endo‐, epi‐, and rhizomicrobiome). Resistance and resilience were calculated to further understand the changes of microbial composition in response to perturbations. The results of this study provide evidence that nutrient enrichment has a significant influence on the taxonomic and functional structure of the epimicrobiota, with a low community resistance index observed for both. Temperature and nutrient stress had a significant effect on the rhizomicrobiota taxonomic composition, exhibiting the lowest overall resistance to change. The functional performance of the rhizomicrobiota had low resilience to the combination of stressors, indicating potential additive effects. Interestingly, the endomicrobiota had the highest overall resistance, yet the lowest overall resilience to environmental stress. This further contributes to our understanding of algal microbiome dynamics in response to environmental changes.
format	article
author	Kathryn Lee Morrissey Ljiljana Iveša Soria Delva Sofie D'Hondt Anne Willems Olivier De Clerck
author_facet	Kathryn Lee Morrissey Ljiljana Iveša Soria Delva Sofie D'Hondt Anne Willems Olivier De Clerck
author_sort	Kathryn Lee Morrissey
title	Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities
title_short	Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities
title_full	Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities
title_fullStr	Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities
title_full_unstemmed	Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities
title_sort	impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/59d0c62d65b141f191b7ddd5fabcb105
work_keys_str_mv	AT kathrynleemorrissey impactsofenvironmentalstressonresistanceandresilienceofalgalassociatedbacterialcommunities AT ljiljanaivesa impactsofenvironmentalstressonresistanceandresilienceofalgalassociatedbacterialcommunities AT soriadelva impactsofenvironmentalstressonresistanceandresilienceofalgalassociatedbacterialcommunities AT sofiedhondt impactsofenvironmentalstressonresistanceandresilienceofalgalassociatedbacterialcommunities AT annewillems impactsofenvironmentalstressonresistanceandresilienceofalgalassociatedbacterialcommunities AT olivierdeclerck impactsofenvironmentalstressonresistanceandresilienceofalgalassociatedbacterialcommunities
_version_	1718441474780037120

Impacts of environmental stress on resistance and resilience of algal‐associated bacterial communities

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