Imperial College London
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Dr Tanai Cardona

Faculty of Natural Sciences, Department of Life Sciences

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Contact

 

t.cardona Website

 
 
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Location

 

603Sir Ernst Chain BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Laura:2020:10.1038/s41396-020-0670-y,
author = {Laura, A A and Cardona, Londono T and Larkum, AWD and Dennis, J N},
doi = {10.1038/s41396-020-0670-y},
journal = {The ISME Journal: multidisciplinary journal of microbial ecology},
pages = {2275--2287},
title = {Global distribution of a chlorophyll f cyanobacterial marker},
url = {http://dx.doi.org/10.1038/s41396-020-0670-y},
volume = {14},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Some cyanobacteria use light outside the visible spectrum for oxygenic photosynthesis. The far-red light (FRL) region is made accessible through a complex acclimation process that involves the formation of new phycobilisomes and photosystems containing chlorophyll f. Diverse cyanobacteria ranging from unicellular to branched-filamentous forms show this response. These organisms have been isolated from shaded environments such as microbial mats, soil, rock, and stromatolites. However, the full spread of chlorophyll f-containing species in nature is still unknown. Currently, discovering new chlorophyll f cyanobacteria involves lengthy incubation times under selective far-red light. We have used a marker gene to detect chlorophyll f organisms in environmental samples and metagenomic data. This marker, apcE2, encodes a phycobilisome linker associated with FRL-photosynthesis. By focusing on a far-red motif within the sequence, degenerate PCR and BLAST searches can effectively discriminate against the normal chlorophyll a-associated apcE. Even short recovered sequences carry enough information for phylogenetic placement. Markers of chlorophyll f photosynthesis were found in metagenomic datasets from diverse environments around the globe, including cyanobacterial symbionts, hypersaline lakes, corals, and the Arctic/Antarctic regions. This additional information enabled higher phylogenetic resolution supporting the hypothesis that vertical descent, as opposed to horizontal gene transfer, is largely responsible for this phenotype’s distribution.
AU  - Laura,A A
AU  - Cardona,Londono T
AU  - Larkum,AWD
AU  - Dennis,J N
DO  - 10.1038/s41396-020-0670-y
EP  - 2287
PY  - 2020///
SN  - 1751-7362
SP  - 2275
TI  - Global distribution of a chlorophyll f cyanobacterial marker
T2  - The ISME Journal: multidisciplinary journal of microbial ecology
UR  - http://dx.doi.org/10.1038/s41396-020-0670-y
UR  - http://hdl.handle.net/10044/1/79860
VL  - 14
ER  -
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