Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region
Background and aims – During a survey of the soil diatom flora of the sub-Antarctic islands in the southern Indian Ocean, an unknown small-celled naviculoid taxon was discovered living in small cracks in cliffs bordering the ocean. The taxon showed a set of morphological features only found in the g...
Published in: | Plant Ecology and Evolution |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Meise Botanic Garden
2019
|
Subjects: | |
Online Access: | https://doi.org/10.5091/plecevo.2019.1600 https://doaj.org/article/6fa3bcac888445f58151257c301584cb |
id |
ftdoajarticles:oai:doaj.org/article:6fa3bcac888445f58151257c301584cb |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:6fa3bcac888445f58151257c301584cb 2023-12-03T10:12:56+01:00 Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region Bart Van de Vijver Luc Ector 2019-11-01T00:00:00Z https://doi.org/10.5091/plecevo.2019.1600 https://doaj.org/article/6fa3bcac888445f58151257c301584cb EN eng Meise Botanic Garden https://plecevo.eu/article/24671/download/pdf/ https://plecevo.eu/article/24671/download/xml/ https://plecevo.eu/article/24671/ https://doaj.org/toc/2032-3921 doi:10.5091/plecevo.2019.1600 2032-3921 https://doaj.org/article/6fa3bcac888445f58151257c301584cb Plant Ecology and Evolution, Vol 152, Iss 3, Pp 539-545 (2019) diatoms sub-Antarctic region Crozet archipelago Plant ecology QK900-989 article 2019 ftdoajarticles https://doi.org/10.5091/plecevo.2019.1600 2023-11-05T01:38:37Z Background and aims – During a survey of the soil diatom flora of the sub-Antarctic islands in the southern Indian Ocean, an unknown small-celled naviculoid taxon was discovered living in small cracks in cliffs bordering the ocean. The taxon showed a set of morphological features only found in the genus Microcostatus. However, the unknown taxon could not be identified using the currently available literature. Methods – Using both light microscopical and scanning electron microscopical techniques, the morphology of the unknown Microcostatus taxon was documented. The new taxon is described, illustrated and compared with all other similar Microcostatus taxa worldwide. Key results – Microcostatus elisabethianus possesses a unique combination of morphological features that excludes conspecificity with all other members of the genus. It is characterized by a lanceolate valve outline with protracted, elongate apices, a very large, porous conopeum reaching the valve margins and uniseriate striae composed of only one macroareola and mantle areolae restricted to the valve apices. The morphological features of the genus Microcostatus are evaluated and discussed. Notes on the occurrence and ecology of the new taxon are added. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Indian Plant Ecology and Evolution 152 3 539 545 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
diatoms sub-Antarctic region Crozet archipelago Plant ecology QK900-989 |
spellingShingle |
diatoms sub-Antarctic region Crozet archipelago Plant ecology QK900-989 Bart Van de Vijver Luc Ector Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region |
topic_facet |
diatoms sub-Antarctic region Crozet archipelago Plant ecology QK900-989 |
description |
Background and aims – During a survey of the soil diatom flora of the sub-Antarctic islands in the southern Indian Ocean, an unknown small-celled naviculoid taxon was discovered living in small cracks in cliffs bordering the ocean. The taxon showed a set of morphological features only found in the genus Microcostatus. However, the unknown taxon could not be identified using the currently available literature. Methods – Using both light microscopical and scanning electron microscopical techniques, the morphology of the unknown Microcostatus taxon was documented. The new taxon is described, illustrated and compared with all other similar Microcostatus taxa worldwide. Key results – Microcostatus elisabethianus possesses a unique combination of morphological features that excludes conspecificity with all other members of the genus. It is characterized by a lanceolate valve outline with protracted, elongate apices, a very large, porous conopeum reaching the valve margins and uniseriate striae composed of only one macroareola and mantle areolae restricted to the valve apices. The morphological features of the genus Microcostatus are evaluated and discussed. Notes on the occurrence and ecology of the new taxon are added. |
format |
Article in Journal/Newspaper |
author |
Bart Van de Vijver Luc Ector |
author_facet |
Bart Van de Vijver Luc Ector |
author_sort |
Bart Van de Vijver |
title |
Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region |
title_short |
Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region |
title_full |
Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region |
title_fullStr |
Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region |
title_full_unstemmed |
Microcostatus elisabethianus, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic region |
title_sort |
microcostatus elisabethianus, a new limnoterrestrial diatom species (bacillariophyta) from the sub-antarctic region |
publisher |
Meise Botanic Garden |
publishDate |
2019 |
url |
https://doi.org/10.5091/plecevo.2019.1600 https://doaj.org/article/6fa3bcac888445f58151257c301584cb |
geographic |
Antarctic Indian |
geographic_facet |
Antarctic Indian |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Plant Ecology and Evolution, Vol 152, Iss 3, Pp 539-545 (2019) |
op_relation |
https://plecevo.eu/article/24671/download/pdf/ https://plecevo.eu/article/24671/download/xml/ https://plecevo.eu/article/24671/ https://doaj.org/toc/2032-3921 doi:10.5091/plecevo.2019.1600 2032-3921 https://doaj.org/article/6fa3bcac888445f58151257c301584cb |
op_doi |
https://doi.org/10.5091/plecevo.2019.1600 |
container_title |
Plant Ecology and Evolution |
container_volume |
152 |
container_issue |
3 |
container_start_page |
539 |
op_container_end_page |
545 |
_version_ |
1784259569904517120 |