LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1
ABSTRACT Twenty‐four strains of Emiliania huxleyi and two strains of Gephyrocapsa oceanica were grown at 15°C under identical culture conditions to assess genetic variability in key lipid biomarker profiles (C 37 ‐C 39 alkenones, C 36 and C 37 alkyl alkenoates, and C 31 ‐C 38 alkenes). Under our cul...
Published in: | Journal of Phycology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1995
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.0022-3646.1995.00272.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1995.00272.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1995.00272.x |
id |
crwiley:10.1111/j.0022-3646.1995.00272.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.0022-3646.1995.00272.x 2024-06-23T07:55:11+00:00 LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1 Conte, Maureen H. Thompson, Anthony Eglinton, Geoffrey Green, John C. 1995 http://dx.doi.org/10.1111/j.0022-3646.1995.00272.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1995.00272.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1995.00272.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 31, issue 2, page 272-282 ISSN 0022-3646 1529-8817 journal-article 1995 crwiley https://doi.org/10.1111/j.0022-3646.1995.00272.x 2024-06-06T04:22:10Z ABSTRACT Twenty‐four strains of Emiliania huxleyi and two strains of Gephyrocapsa oceanica were grown at 15°C under identical culture conditions to assess genetic variability in key lipid biomarker profiles (C 37 ‐C 39 alkenones, C 36 and C 37 alkyl alkenoates, and C 31 ‐C 38 alkenes). Under our culture conditions, little divergence an biomarker composition was detected between E. huxleyi strains from different oceanic regions or between E. huxleyi and G. oceanica even though the strains originated from biogeographical regions as diverse as the subpolar North Atlantic and subtropical Western Pacific. The major differences observed were in tetraunsaturated alkenone abundance and alkene profiles, which tended to separate neritic from open ocean strains. Different strains from the same locality were as different as strains originating from widely separated ocean basins, indicating extreme genotypic diversity within a population. Replicate cultures of the same strain showed significant variability in their biomarker profiles even though the culture temperature varied by only ±0.3°C, indicating that their synthesis ratios are influenced by environmental and/or physiological variable(s), as yet unidentified, in addition to temperature. Strong covariance in C 37 and C 38 methyl alkenone unsaturation ratios (U k 37 and U k 38Mρ respectively) and, in coastal strains, C 33 , alkene and alkenone unsaturation ratios indicates that these compounds are biochemically linked . Article in Journal/Newspaper North Atlantic Wiley Online Library Pacific Journal of Phycology 31 2 272 282 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT Twenty‐four strains of Emiliania huxleyi and two strains of Gephyrocapsa oceanica were grown at 15°C under identical culture conditions to assess genetic variability in key lipid biomarker profiles (C 37 ‐C 39 alkenones, C 36 and C 37 alkyl alkenoates, and C 31 ‐C 38 alkenes). Under our culture conditions, little divergence an biomarker composition was detected between E. huxleyi strains from different oceanic regions or between E. huxleyi and G. oceanica even though the strains originated from biogeographical regions as diverse as the subpolar North Atlantic and subtropical Western Pacific. The major differences observed were in tetraunsaturated alkenone abundance and alkene profiles, which tended to separate neritic from open ocean strains. Different strains from the same locality were as different as strains originating from widely separated ocean basins, indicating extreme genotypic diversity within a population. Replicate cultures of the same strain showed significant variability in their biomarker profiles even though the culture temperature varied by only ±0.3°C, indicating that their synthesis ratios are influenced by environmental and/or physiological variable(s), as yet unidentified, in addition to temperature. Strong covariance in C 37 and C 38 methyl alkenone unsaturation ratios (U k 37 and U k 38Mρ respectively) and, in coastal strains, C 33 , alkene and alkenone unsaturation ratios indicates that these compounds are biochemically linked . |
format |
Article in Journal/Newspaper |
author |
Conte, Maureen H. Thompson, Anthony Eglinton, Geoffrey Green, John C. |
spellingShingle |
Conte, Maureen H. Thompson, Anthony Eglinton, Geoffrey Green, John C. LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1 |
author_facet |
Conte, Maureen H. Thompson, Anthony Eglinton, Geoffrey Green, John C. |
author_sort |
Conte, Maureen H. |
title |
LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1 |
title_short |
LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1 |
title_full |
LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1 |
title_fullStr |
LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1 |
title_full_unstemmed |
LIPID BIOMARKER DIVERSITY IN THE COCCOLITHOPHORID EMILIANIA HUXLEYI(PRYMNESIOPHYCEAE) AND THE RELATED SPECIES GEPHYROCAPSA OCEANICA 1 |
title_sort |
lipid biomarker diversity in the coccolithophorid emiliania huxleyi(prymnesiophyceae) and the related species gephyrocapsa oceanica 1 |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1111/j.0022-3646.1995.00272.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1995.00272.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1995.00272.x |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Phycology volume 31, issue 2, page 272-282 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0022-3646.1995.00272.x |
container_title |
Journal of Phycology |
container_volume |
31 |
container_issue |
2 |
container_start_page |
272 |
op_container_end_page |
282 |
_version_ |
1802647655293124608 |