Metatranscriptomics reveals diversity of symbiotic interaction and mechanisms of carbon exchange in the marine cyanolichen Lichina pygmaea

© 2023 The Authors. New Phytologist © 2023 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 241(2024), 5 vom: 15. Feb., Seite 2243-2257
1. Verfasser: Chrismas, Nathan (VerfasserIn)
Weitere Verfasser: Tindall-Jones, Beth, Jenkins, Helen, Harley, Joanna, Bird, Kimberley, Cunliffe, Michael
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Lichina pygmaea Cyanobacteria carbon lichens marine symbiosis
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520 |a Lichens are exemplar symbioses based upon carbon exchange between photobionts and their mycobiont hosts. Historically considered a two-way relationship, some lichen symbioses have been shown to contain multiple photobiont partners; however, the way in which these photobiont communities react to environmental change is poorly understood. Lichina pygmaea is a marine cyanolichen that inhabits rocky seashores where it is submerged in seawater during every tidal cycle. Recent work has indicated that L. pygmaea has a complex photobiont community including the cyanobionts Rivularia and Pleurocapsa. We performed rRNA-based metabarcoding and mRNA metatranscriptomics of the L. pygmaea holobiont at high and low tide to investigate community response to immersion in seawater. Carbon exchange in L. pygmaea is a dynamic process, influenced by both tidal cycle and the biology of the individual symbiotic components. The mycobiont and two cyanobiont partners exhibit distinct transcriptional responses to seawater hydration. Sugar-based compatible solutes produced by Rivularia and Pleurocapsa in response to seawater are a potential source of carbon to the mycobiont. We propose that extracellular processing of photobiont-derived polysaccharides is a fundamental step in carbon acquisition by L. pygmaea and is analogous to uptake of plant-derived carbon in ectomycorrhizal symbioses 
650 4 |a Journal Article 
650 4 |a Lichina pygmaea 
650 4 |a Cyanobacteria 
650 4 |a carbon 
650 4 |a lichens 
650 4 |a marine 
650 4 |a symbiosis 
700 1 |a Tindall-Jones, Beth  |e verfasserin  |4 aut 
700 1 |a Jenkins, Helen  |e verfasserin  |4 aut 
700 1 |a Harley, Joanna  |e verfasserin  |4 aut 
700 1 |a Bird, Kimberley  |e verfasserin  |4 aut 
700 1 |a Cunliffe, Michael  |e verfasserin  |4 aut 
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