Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution
ABSTRACT Carotenoids are structurally diverse pigments of biotechnological interest as natural colorants and in the prevention of human disease. The carotenoids present in 19 strains taxonomically related to the poorly described, nonphotosynthetic bacterial genus Hymenobacter , including 10 novel is...
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American Society for Microbiology
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Online Access: | http://dx.doi.org/10.1128/aem.02306-07 https://journals.asm.org/doi/pdf/10.1128/AEM.02306-07 |
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crasmicro:10.1128/aem.02306-07 2024-09-15T17:45:20+00:00 Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution Klassen, Jonathan L. Foght, Julia M. 2008 http://dx.doi.org/10.1128/aem.02306-07 https://journals.asm.org/doi/pdf/10.1128/AEM.02306-07 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 74, issue 7, page 2016-2022 ISSN 0099-2240 1098-5336 journal-article 2008 crasmicro https://doi.org/10.1128/aem.02306-07 2024-08-05T04:10:13Z ABSTRACT Carotenoids are structurally diverse pigments of biotechnological interest as natural colorants and in the prevention of human disease. The carotenoids present in 19 strains taxonomically related to the poorly described, nonphotosynthetic bacterial genus Hymenobacter , including 10 novel isolates cultivated from Victoria Upper Glacier, Antarctica, were characterized using high-performance liquid chromatography (HPLC). Nine chemically distinct carotenoids, present in various combinations irresolvable by conventional crude spectrophotometric analyses, were purified by preparative HPLC and characterized using UV-visible light absorption spectroscopy and high-resolution mass spectrometry. All major Hymenobacter carotenoids appear to be derived from a common backbone of 2′-hydroxyflexixanthin and include previously unreported presumptive hexosyl, pentosyl, and methyl derivatives. Their distribution does not, however, correlate perfectly with 16S rRNA gene phylogeny. Carotenoid composition, therefore, may be strain specific and does not follow a strictly homogeneous pattern of vertical evolutionary descent. Article in Journal/Newspaper Antarc* Antarctica ASM Journals (American Society for Microbiology) Applied and Environmental Microbiology 74 7 2016 2022 |
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Open Polar |
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ASM Journals (American Society for Microbiology) |
op_collection_id |
crasmicro |
language |
English |
description |
ABSTRACT Carotenoids are structurally diverse pigments of biotechnological interest as natural colorants and in the prevention of human disease. The carotenoids present in 19 strains taxonomically related to the poorly described, nonphotosynthetic bacterial genus Hymenobacter , including 10 novel isolates cultivated from Victoria Upper Glacier, Antarctica, were characterized using high-performance liquid chromatography (HPLC). Nine chemically distinct carotenoids, present in various combinations irresolvable by conventional crude spectrophotometric analyses, were purified by preparative HPLC and characterized using UV-visible light absorption spectroscopy and high-resolution mass spectrometry. All major Hymenobacter carotenoids appear to be derived from a common backbone of 2′-hydroxyflexixanthin and include previously unreported presumptive hexosyl, pentosyl, and methyl derivatives. Their distribution does not, however, correlate perfectly with 16S rRNA gene phylogeny. Carotenoid composition, therefore, may be strain specific and does not follow a strictly homogeneous pattern of vertical evolutionary descent. |
format |
Article in Journal/Newspaper |
author |
Klassen, Jonathan L. Foght, Julia M. |
spellingShingle |
Klassen, Jonathan L. Foght, Julia M. Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution |
author_facet |
Klassen, Jonathan L. Foght, Julia M. |
author_sort |
Klassen, Jonathan L. |
title |
Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution |
title_short |
Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution |
title_full |
Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution |
title_fullStr |
Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution |
title_full_unstemmed |
Differences in Carotenoid Composition among Hymenobacter and Related Strains Support a Tree-Like Model of Carotenoid Evolution |
title_sort |
differences in carotenoid composition among hymenobacter and related strains support a tree-like model of carotenoid evolution |
publisher |
American Society for Microbiology |
publishDate |
2008 |
url |
http://dx.doi.org/10.1128/aem.02306-07 https://journals.asm.org/doi/pdf/10.1128/AEM.02306-07 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Applied and Environmental Microbiology volume 74, issue 7, page 2016-2022 ISSN 0099-2240 1098-5336 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.02306-07 |
container_title |
Applied and Environmental Microbiology |
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74 |
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7 |
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2016 |
op_container_end_page |
2022 |
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1810493117109895168 |