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In situ associations between marine photosynthetic picoeukaryotes and potential parasites - a role for fungi?
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Lepère, Cécile, Ostrowski, Martin, Hartmann, Manuela, Zubkov, Mikhail V. and Scanlan, David J. (2015) In situ associations between marine photosynthetic picoeukaryotes and potential parasites - a role for fungi? Environmental Microbiology Reports, 8 (4). pp. 445-451. doi:10.1111/1758-2229.12339 ISSN 1758-2229.
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Official URL: http://dx.doi.org/10.1111/1758-2229.12339
Abstract
Photosynthetic picoeukaryotes (PPEs) are important components of the marine picophytoplankton community playing a critical role in CO2 fixation but also as bacterivores, particularly in the oligotrophic gyres. Despite an increased interest in these organisms and an improved understanding of the genetic diversity of this group, we still know little of the environmental factors controlling the abundance of these organisms. Here, we investigated the quantitative importance of eukaryotic parasites in the free-living fraction as well as in associations with PPEs along a transect in the South Atlantic. Using tyramide signal amplification-fluorescence in situ hybridization (TSA-FISH), we provide quantitative evidence of the occurrence of free-living fungi in open ocean marine systems, while the Perkinsozoa and Syndiniales parasites were not abundant in these waters. Using flow cytometric cell sorting of different PPE populations followed by a dual-labelled TSA-FISH approach, we also demonstrate fungal associations, potentially parasitic, occurring with both pico-Prymnesiophyceae and pico-Chrysophyceae. These data highlight the necessity for further work investigating the specific role of marine fungi as parasites of phytoplankton to improve understanding of carbon flow in marine ecosystems.
Item Type: | Journal Article | ||||||||||
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Subjects: | Q Science > QH Natural history Q Science > QK Botany |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||||
Library of Congress Subject Headings (LCSH): | Plankton -- Atlantic Ocean -- Research, Fungi | ||||||||||
Journal or Publication Title: | Environmental Microbiology Reports | ||||||||||
Publisher: | Wiley-Blackwell Publishing Ltd. | ||||||||||
ISSN: | 1758-2229 | ||||||||||
Official Date: | 1 December 2015 | ||||||||||
Dates: |
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Volume: | 8 | ||||||||||
Number: | 4 | ||||||||||
Page Range: | pp. 445-451 | ||||||||||
DOI: | 10.1111/1758-2229.12339 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 16 August 2016 | ||||||||||
Date of first compliant Open Access: | 1 December 2016 | ||||||||||
Funder: | Natural Environment Research Council (Great Britain) (NERC), Seventh Framework Programme (European Commission) (FP7), Marie Curie Intra-European Fellowship (IEF) | ||||||||||
Grant number: | NE/F004249/1, NE/G005125/1. | ||||||||||
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