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Hemoglobin-derived porphyrins preserved in a Middle Eocene blood-engorged mosquito
National Museum of Natural History, USA.
National Museum of Natural History, USA.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf). National Museum of Natural History, USA; Carnegie Institution of Washington, USA.ORCID iD: 0000-0002-4975-6074
National Museum of Natural History, USA.
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2013 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 110, no 46, p. 18496-18500Article in journal (Refereed) Published
Abstract [en]

Although hematophagy is found in ∼14,000 species of extant insects, the fossil record of blood-feeding insects is extremely poor and largely confined to specimens identified as hematophagic based on their taxonomic affinities with extant hematophagic insects; direct evidence of hematophagy is limited to four insect fossils in which trypanosomes and the malarial protozoan Plasmodium have been found. Here, we describe a blood-engorged mosquito from the Middle Eocene Kishenehn Formation in Montana. This unique specimen provided the opportunity to ask whether or not hemoglobin, or biomolecules derived from hemoglobin, were preserved in the fossilized blood meal. The abdomen of the fossil mosquito was shown to contain very high levels of iron, and mass spectrometry data provided a convincing identification of porphyrin molecules derived from the oxygen-carrying heme moiety of hemoglobin. These data confirm the existence of taphonomic conditions conducive to the preservation of biomolecules through deep time and support previous reports of the existence of heme-derived porphyrins in terrestrial fossils.

Place, publisher, year, edition, pages
2013. Vol. 110, no 46, p. 18496-18500
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Natural Sciences
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URN: urn:nbn:se:ri:diva-6580DOI: 10.1073/pnas.1310885110Scopus ID: 2-s2.0-84887479711Local ID: 23877OAI: oai:DiVA.org:ri-6580DiVA, id: diva2:964419
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2023-06-07Bibliographically approved

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