Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine
Specimens of the vesicular–arbuscular mycorrhizal fungal Glomus fasciculatum complex have been identified from lake sediment cores from Gould Pond (central Maine) and Upper South Branch Pond (north central Maine). The fungus became established with tundra vegetation on newly developing soils soon af...
Published in: | Canadian Journal of Botany |
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Canadian Science Publishing
1984
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Online Access: | http://dx.doi.org/10.1139/b84-316 http://www.nrcresearchpress.com/doi/pdf/10.1139/b84-316 |
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crcansciencepubl:10.1139/b84-316 2024-06-23T07:57:17+00:00 Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine Anderson, R. Scott Homola, Richard L. Davis, Ronald B. Jacobson Jr., George L. 1984 http://dx.doi.org/10.1139/b84-316 http://www.nrcresearchpress.com/doi/pdf/10.1139/b84-316 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 62, issue 11, page 2325-2328 ISSN 0008-4026 journal-article 1984 crcansciencepubl https://doi.org/10.1139/b84-316 2024-05-24T13:05:50Z Specimens of the vesicular–arbuscular mycorrhizal fungal Glomus fasciculatum complex have been identified from lake sediment cores from Gould Pond (central Maine) and Upper South Branch Pond (north central Maine). The fungus became established with tundra vegetation on newly developing soils soon after the melting of Wisconsin ice. This is the first record of such an occurrence for North America. The earliest specimens from Gould Pond were deposited in sediment dated at about 13 000 years old and those at Upper South Branch Pond between about 12 500 and 11 000 years old. This is at least 1000 years prior to the arrival of trees in those areas. Sedimentologic and biologic evidence indicates soil instability and relatively high soil erosion rates from the watersheds during the late-glacial period. Thus erosion probably accounts for the abundance of Glomus in late-glacial sediments. The reduced abundance of the fungus in Holocene sediments is attributed to a decrease in the rate of soil erosion after the establishment of trees. Article in Journal/Newspaper Tundra Canadian Science Publishing Canadian Journal of Botany 62 11 2325 2328 |
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Open Polar |
collection |
Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Specimens of the vesicular–arbuscular mycorrhizal fungal Glomus fasciculatum complex have been identified from lake sediment cores from Gould Pond (central Maine) and Upper South Branch Pond (north central Maine). The fungus became established with tundra vegetation on newly developing soils soon after the melting of Wisconsin ice. This is the first record of such an occurrence for North America. The earliest specimens from Gould Pond were deposited in sediment dated at about 13 000 years old and those at Upper South Branch Pond between about 12 500 and 11 000 years old. This is at least 1000 years prior to the arrival of trees in those areas. Sedimentologic and biologic evidence indicates soil instability and relatively high soil erosion rates from the watersheds during the late-glacial period. Thus erosion probably accounts for the abundance of Glomus in late-glacial sediments. The reduced abundance of the fungus in Holocene sediments is attributed to a decrease in the rate of soil erosion after the establishment of trees. |
format |
Article in Journal/Newspaper |
author |
Anderson, R. Scott Homola, Richard L. Davis, Ronald B. Jacobson Jr., George L. |
spellingShingle |
Anderson, R. Scott Homola, Richard L. Davis, Ronald B. Jacobson Jr., George L. Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine |
author_facet |
Anderson, R. Scott Homola, Richard L. Davis, Ronald B. Jacobson Jr., George L. |
author_sort |
Anderson, R. Scott |
title |
Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine |
title_short |
Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine |
title_full |
Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine |
title_fullStr |
Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine |
title_full_unstemmed |
Fossil remains of the mycorrhizal fungal Glomus fasciculatum complex in postglacial lake sediments from Maine |
title_sort |
fossil remains of the mycorrhizal fungal glomus fasciculatum complex in postglacial lake sediments from maine |
publisher |
Canadian Science Publishing |
publishDate |
1984 |
url |
http://dx.doi.org/10.1139/b84-316 http://www.nrcresearchpress.com/doi/pdf/10.1139/b84-316 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Canadian Journal of Botany volume 62, issue 11, page 2325-2328 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b84-316 |
container_title |
Canadian Journal of Botany |
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62 |
container_issue |
11 |
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2325 |
op_container_end_page |
2328 |
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1802650857486942208 |