Continental-scale variation in seaweed host-associated bacterial communities is a function of host condition, not geography

Ezequiel M. Marzinelli, Alexandra H. Campbell, Enrique Zozaya Valdes, Adriana Vergés, Shaun Nielsen, Thomas Wernberg, Thibaut de Bettignies, Scott Bennett, James G Caporaso, Torsten Thomas, Peter D. Steinberg

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Interactions between hosts and associated microbial communities can fundamentally shape the development and ecology of 'holobionts', from humans to marine habitat-forming organisms such as seaweeds. In marine systems, planktonic microbial community structure is mainly driven by geography and related environmental factors, but the large-scale drivers of host-associated microbial communities are largely unknown. Using 16S-rRNA gene sequencing, we characterized 260 seaweed-associated bacterial and archaeal communities on the kelp Ecklonia radiata from three biogeographical provinces spanning 10° of latitude and 35° of longitude across the Australian continent. These phylogenetically and taxonomically diverse communities were more strongly and consistently associated with host condition than geographical location or environmental variables, and a 'core' microbial community characteristic of healthy kelps appears to be lost when hosts become stressed. Microbial communities on stressed individuals were more similar to each other among locations than those on healthy hosts. In contrast to biogeographical patterns of planktonic marine microbial communities, host traits emerge as critical determinants of associated microbial community structure of these holobionts, even at a continental scale.

Original languageEnglish (US)
Pages (from-to)4078-4088
Number of pages11
JournalEnvironmental Microbiology
Volume17
Issue number10
DOIs
StatePublished - Oct 1 2015
Externally publishedYes

Fingerprint

Seaweed
Geography
geography
seaweed
bacterial communities
microbial communities
macroalgae
microbial community
Kelp
Ecology
rRNA Genes
Ecosystem
community structure
environmental factors
Geographical Locations
longitude
environmental factor
ribosomal RNA
ecology
gene

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Marzinelli, E. M., Campbell, A. H., Zozaya Valdes, E., Vergés, A., Nielsen, S., Wernberg, T., ... Steinberg, P. D. (2015). Continental-scale variation in seaweed host-associated bacterial communities is a function of host condition, not geography. Environmental Microbiology, 17(10), 4078-4088. https://doi.org/10.1111/1462-2920.12972

Continental-scale variation in seaweed host-associated bacterial communities is a function of host condition, not geography. / Marzinelli, Ezequiel M.; Campbell, Alexandra H.; Zozaya Valdes, Enrique; Vergés, Adriana; Nielsen, Shaun; Wernberg, Thomas; de Bettignies, Thibaut; Bennett, Scott; Caporaso, James G; Thomas, Torsten; Steinberg, Peter D.

In: Environmental Microbiology, Vol. 17, No. 10, 01.10.2015, p. 4078-4088.

Research output: Contribution to journalArticle

Marzinelli, EM, Campbell, AH, Zozaya Valdes, E, Vergés, A, Nielsen, S, Wernberg, T, de Bettignies, T, Bennett, S, Caporaso, JG, Thomas, T & Steinberg, PD 2015, 'Continental-scale variation in seaweed host-associated bacterial communities is a function of host condition, not geography', Environmental Microbiology, vol. 17, no. 10, pp. 4078-4088. https://doi.org/10.1111/1462-2920.12972
Marzinelli, Ezequiel M. ; Campbell, Alexandra H. ; Zozaya Valdes, Enrique ; Vergés, Adriana ; Nielsen, Shaun ; Wernberg, Thomas ; de Bettignies, Thibaut ; Bennett, Scott ; Caporaso, James G ; Thomas, Torsten ; Steinberg, Peter D. / Continental-scale variation in seaweed host-associated bacterial communities is a function of host condition, not geography. In: Environmental Microbiology. 2015 ; Vol. 17, No. 10. pp. 4078-4088.
@article{fa608df36125499bb77ac56afb26521e,
title = "Continental-scale variation in seaweed host-associated bacterial communities is a function of host condition, not geography",
abstract = "Interactions between hosts and associated microbial communities can fundamentally shape the development and ecology of 'holobionts', from humans to marine habitat-forming organisms such as seaweeds. In marine systems, planktonic microbial community structure is mainly driven by geography and related environmental factors, but the large-scale drivers of host-associated microbial communities are largely unknown. Using 16S-rRNA gene sequencing, we characterized 260 seaweed-associated bacterial and archaeal communities on the kelp Ecklonia radiata from three biogeographical provinces spanning 10° of latitude and 35° of longitude across the Australian continent. These phylogenetically and taxonomically diverse communities were more strongly and consistently associated with host condition than geographical location or environmental variables, and a 'core' microbial community characteristic of healthy kelps appears to be lost when hosts become stressed. Microbial communities on stressed individuals were more similar to each other among locations than those on healthy hosts. In contrast to biogeographical patterns of planktonic marine microbial communities, host traits emerge as critical determinants of associated microbial community structure of these holobionts, even at a continental scale.",
author = "Marzinelli, {Ezequiel M.} and Campbell, {Alexandra H.} and {Zozaya Valdes}, Enrique and Adriana Verg{\'e}s and Shaun Nielsen and Thomas Wernberg and {de Bettignies}, Thibaut and Scott Bennett and Caporaso, {James G} and Torsten Thomas and Steinberg, {Peter D.}",
year = "2015",
month = "10",
day = "1",
doi = "10.1111/1462-2920.12972",
language = "English (US)",
volume = "17",
pages = "4078--4088",
journal = "Environmental Microbiology",
issn = "1462-2912",
publisher = "Wiley-Blackwell",
number = "10",

}

TY - JOUR

T1 - Continental-scale variation in seaweed host-associated bacterial communities is a function of host condition, not geography

AU - Marzinelli, Ezequiel M.

AU - Campbell, Alexandra H.

AU - Zozaya Valdes, Enrique

AU - Vergés, Adriana

AU - Nielsen, Shaun

AU - Wernberg, Thomas

AU - de Bettignies, Thibaut

AU - Bennett, Scott

AU - Caporaso, James G

AU - Thomas, Torsten

AU - Steinberg, Peter D.

PY - 2015/10/1

Y1 - 2015/10/1

N2 - Interactions between hosts and associated microbial communities can fundamentally shape the development and ecology of 'holobionts', from humans to marine habitat-forming organisms such as seaweeds. In marine systems, planktonic microbial community structure is mainly driven by geography and related environmental factors, but the large-scale drivers of host-associated microbial communities are largely unknown. Using 16S-rRNA gene sequencing, we characterized 260 seaweed-associated bacterial and archaeal communities on the kelp Ecklonia radiata from three biogeographical provinces spanning 10° of latitude and 35° of longitude across the Australian continent. These phylogenetically and taxonomically diverse communities were more strongly and consistently associated with host condition than geographical location or environmental variables, and a 'core' microbial community characteristic of healthy kelps appears to be lost when hosts become stressed. Microbial communities on stressed individuals were more similar to each other among locations than those on healthy hosts. In contrast to biogeographical patterns of planktonic marine microbial communities, host traits emerge as critical determinants of associated microbial community structure of these holobionts, even at a continental scale.

AB - Interactions between hosts and associated microbial communities can fundamentally shape the development and ecology of 'holobionts', from humans to marine habitat-forming organisms such as seaweeds. In marine systems, planktonic microbial community structure is mainly driven by geography and related environmental factors, but the large-scale drivers of host-associated microbial communities are largely unknown. Using 16S-rRNA gene sequencing, we characterized 260 seaweed-associated bacterial and archaeal communities on the kelp Ecklonia radiata from three biogeographical provinces spanning 10° of latitude and 35° of longitude across the Australian continent. These phylogenetically and taxonomically diverse communities were more strongly and consistently associated with host condition than geographical location or environmental variables, and a 'core' microbial community characteristic of healthy kelps appears to be lost when hosts become stressed. Microbial communities on stressed individuals were more similar to each other among locations than those on healthy hosts. In contrast to biogeographical patterns of planktonic marine microbial communities, host traits emerge as critical determinants of associated microbial community structure of these holobionts, even at a continental scale.

UR - http://www.scopus.com/inward/record.url?scp=85027944642&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85027944642&partnerID=8YFLogxK

U2 - 10.1111/1462-2920.12972

DO - 10.1111/1462-2920.12972

M3 - Article

VL - 17

SP - 4078

EP - 4088

JO - Environmental Microbiology

JF - Environmental Microbiology

SN - 1462-2912

IS - 10

ER -