A global protist: dynamics of marine Labyrinthulomycetes across ecosystems

Labyrinthulomycetes is a class of heterotrophic fungal-like protists (microbial eukaryote) that has been found in both aquatic and terrestrial ecosystems. In marine and estuarine environments, Labyrinthulomycetes are known for their saprotrophic lifestyle (feeding on detritus) and therefore have...

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Main Author: Sim, Faith Chin Yee
Other Authors: Adriana Lopes dos Santos
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2023
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Online Access:https://hdl.handle.net/10356/165728
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1657282023-04-12T06:12:27Z A global protist: dynamics of marine Labyrinthulomycetes across ecosystems Sim, Faith Chin Yee Adriana Lopes dos Santos Asian School of the Environment adriana.lopes@ntu.edu.sg Science::Biological sciences::Microbiology Labyrinthulomycetes is a class of heterotrophic fungal-like protists (microbial eukaryote) that has been found in both aquatic and terrestrial ecosystems. In marine and estuarine environments, Labyrinthulomycetes are known for their saprotrophic lifestyle (feeding on detritus) and therefore have an important role in the degradation of phytoplankton litter. Despite their crucial role in the marine ecosystem, previous efforts in understanding their biogeography have been limited. This study aims to map out a global scale genetic diversity of Labyrinthulomycetes and their community structure across ecosystems and climates. To explore the biogeographical patterns of Labyrinthulomycetes genetic clades and to understand the ecosystem dynamics shaping its community structure, I will be analysing 59 publicly available metabarcoding studies (≈ 6000 samples) gathered in MetaPR2 database. Species richness, abundance and taxa dominance vary across the different ecosystems showing niche preference amongst the different clades. Coastal ecosystems were found to be associated with Thraustochytrids while oceanic ecosystems are associated with the Labyrinthulomycetes X undescribed environmental order. Dominant taxa associated with each climatic area are shaped by factors such as substrate preference and oceanic upwelling. Vertical community partitioning was observed too, suggesting the different roles each Labyrinthulomycetes clade has in the process of deep-sea carbon sequestration. Labyrinthulomycetes displayed clear patterns in their distribution, although the drivers of such niche partitioning remain unclear. Bachelor of Science in Environmental Earth Systems Science 2023-04-10T01:23:00Z 2023-04-10T01:23:00Z 2023 Final Year Project (FYP) Sim, F. C. Y. (2023). A global protist: dynamics of marine Labyrinthulomycetes across ecosystems. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/165728 https://hdl.handle.net/10356/165728 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Biological sciences::Microbiology
spellingShingle Science::Biological sciences::Microbiology
Sim, Faith Chin Yee
A global protist: dynamics of marine Labyrinthulomycetes across ecosystems
description Labyrinthulomycetes is a class of heterotrophic fungal-like protists (microbial eukaryote) that has been found in both aquatic and terrestrial ecosystems. In marine and estuarine environments, Labyrinthulomycetes are known for their saprotrophic lifestyle (feeding on detritus) and therefore have an important role in the degradation of phytoplankton litter. Despite their crucial role in the marine ecosystem, previous efforts in understanding their biogeography have been limited. This study aims to map out a global scale genetic diversity of Labyrinthulomycetes and their community structure across ecosystems and climates. To explore the biogeographical patterns of Labyrinthulomycetes genetic clades and to understand the ecosystem dynamics shaping its community structure, I will be analysing 59 publicly available metabarcoding studies (≈ 6000 samples) gathered in MetaPR2 database. Species richness, abundance and taxa dominance vary across the different ecosystems showing niche preference amongst the different clades. Coastal ecosystems were found to be associated with Thraustochytrids while oceanic ecosystems are associated with the Labyrinthulomycetes X undescribed environmental order. Dominant taxa associated with each climatic area are shaped by factors such as substrate preference and oceanic upwelling. Vertical community partitioning was observed too, suggesting the different roles each Labyrinthulomycetes clade has in the process of deep-sea carbon sequestration. Labyrinthulomycetes displayed clear patterns in their distribution, although the drivers of such niche partitioning remain unclear.
author2 Adriana Lopes dos Santos
author_facet Adriana Lopes dos Santos
Sim, Faith Chin Yee
format Final Year Project
author Sim, Faith Chin Yee
author_sort Sim, Faith Chin Yee
title A global protist: dynamics of marine Labyrinthulomycetes across ecosystems
title_short A global protist: dynamics of marine Labyrinthulomycetes across ecosystems
title_full A global protist: dynamics of marine Labyrinthulomycetes across ecosystems
title_fullStr A global protist: dynamics of marine Labyrinthulomycetes across ecosystems
title_full_unstemmed A global protist: dynamics of marine Labyrinthulomycetes across ecosystems
title_sort global protist: dynamics of marine labyrinthulomycetes across ecosystems
publisher Nanyang Technological University
publishDate 2023
url https://hdl.handle.net/10356/165728
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