Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov.
Schizochlamydella orbicularis Novis & Visnovsky, sp. nov. (Figs 4D–E) Cellulae sphaericae vel subsphaericae, 3.1–6.1 µm latae. Paries cellularis tenuis laevisque. Chloroplastus viridis, parietalis, lobatus, in cellulis valentibus incisuris 2–4 instructus. Pyrenoides nulla. Cellulae coloniales, m...
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2012
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Online Access: | https://dx.doi.org/10.5281/zenodo.4926554 https://zenodo.org/record/4926554 |
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ftdatacite:10.5281/zenodo.4926554 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Plantae Chlorophyta Chlorophyceae Chlorococcales Radiococcaceae Schizochlamydella Schizochlamydella orbicularis |
spellingShingle |
Biodiversity Taxonomy Plantae Chlorophyta Chlorophyceae Chlorococcales Radiococcaceae Schizochlamydella Schizochlamydella orbicularis Novis, Phil M. Visnovsky, Gabriel Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov. |
topic_facet |
Biodiversity Taxonomy Plantae Chlorophyta Chlorophyceae Chlorococcales Radiococcaceae Schizochlamydella Schizochlamydella orbicularis |
description |
Schizochlamydella orbicularis Novis & Visnovsky, sp. nov. (Figs 4D–E) Cellulae sphaericae vel subsphaericae, 3.1–6.1 µm latae. Paries cellularis tenuis laevisque. Chloroplastus viridis, parietalis, lobatus, in cellulis valentibus incisuris 2–4 instructus. Pyrenoides nulla. Cellulae coloniales, mucilaginae maturae per matricem mucilaginis achromaticam instratosam uniformiter aequidistantes. Autosporis 2–4–8 per sporangium regenerans, eae per expansionem matricis gradatim separantes. Type:— NEW ZEALAND: Westland: Mt Philistine, 1400 m, preserved cultured specimen from sample collected 30 November 2007, CHR610488. Cells colonial, spherical or near-spherical, 3.1–6.1 µm wide. Cell wall thin and smooth. Chloroplast green, parietal, lobed, with 2–4 incisions in healthy cells. Pyrenoid absent (Fig. 4E). Colonies mucilaginous, mature cells spaced evenly through colourless, unlayered mucilage matrix (Fig. 4A). Reproduction by autospores, 2–4–8 per sporangium, gradually separating through expansion of mucilage matrix (Fig. 4A). Sequence data for both the rbc L and 18 S rDNA genes suggested that the species formed a novel lineage in the Trebouxiophyceae, with no clear affinities (Figs 8, 9). Habitat:— Alpine herbfield soil. Distribution:— New Zealand. Etymology:— “Spherical shaped”, referring to the cell. Observations:— The morphology of this species—mucilaginous colonies, lack of pyrenoids and zoospores—suggests an affinity with Coccomyxa , yet S. orbicularis is clearly a distant relative of species in the Coccomyxa clades. More discussion of these clades is given in remarks on Pseudococcomyxa simplex (below). The colonial mucilaginous habit lacking zoospores accords with the Radiococcaceae sensu Ettl & Gärtner (1995). Of the genera therein, the New Zealand strain most closely matches Schizochlamydella Korshikov (1953), with cells irregularly dispersed in homogeneous mucilage. Only one other species of Schizochlamydella lacks a pyrenoid, namely S. minutissima Broady (1982). However, this species is slightly smaller than our strain, with ellipsoidal juvenile cells. One species has previously received attention at the molecular level (Wolf et al. 2003): Schizochlamydella capsulata (Watanabe 1977). This strain is distinguished from our material by containing one or more pyrenoids, and is placed in the Oocystaceae using 18S rDNA sequences (Wolf et al. 2003), not closely related to S. orbicularis (Fig. 8). Given the paucity of characters available to classify these species, it is not surprising that morphology does not reflect phylogeny. Typification in the genus Schizochlamydella is problematic, however. The type species of the genus, S. delicatula (West) Korshikov (1953) was transferred to the chrysophycean genus Phaeoschizochlamys Lemmerman (1898) by Bourrelly (1957). However, this transfer was made without pigment or molecular analyses; we regard the choice of Schizochlamys for our material as prudent until the phylogenetic placement of the type species is clearly established. Cultures:— LCR-CG9. : Published as part of Novis, Phil M. & Visnovsky, Gabriel, 2012, Novel alpine algae from New Zealand: Chlorophyta, pp. 1-30 in Phytotaxa 39 on pages 20-22, DOI: 10.11646/phytotaxa.39.1.1, http://zenodo.org/record/4894684 : {"references": ["Ettl, H. & Gartner, G. (1995) Syllabus der Boden-, Luft-, und Flechtenalgen. Gustav Fischer Verlag, Stuttgart Jena & New York. 721 pp.", "Korshikov, A. A. (1953) Vtznachnyk prisnovodnykh vdorostej Ukrajns'koj RSR. V. Pidklas Protokokovi (Protococcineae). Vakuol'ni (Vacuolales) ta Protokokovi (Protococcales). Akad. Nauk URSR, Kiev, p. 439.", "Broady, P. A. (1982) New records of Chlorophycean micro-algae cultured from Antarctic terrestrial habitats. Nova Hedwigia 36: 445 - 484.", "Wolf, M., Hepperle, D. & Krienitz, L. (2003) On the phylogeny of Radiococcus, Planktosphaeria and Schizochlamydella (Radiococcaceae, Chlorophyta). Biologia 58: 759 - 765.", "Watanabe, S. (1977) Schizochlamydella sphaerica sp. nov. (Chlorococcales) from Japanese soil. Journal of Japanese Botany 52: 338 - 343.", "Bourrelly, P. (1957) Recherches sur les Chrysophycees. Morphologie, phylogenie, systematique. Revue Algologique, Nouvelle Serie 3: 1 - 412."]} |
format |
Text |
author |
Novis, Phil M. Visnovsky, Gabriel |
author_facet |
Novis, Phil M. Visnovsky, Gabriel |
author_sort |
Novis, Phil M. |
title |
Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov. |
title_short |
Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov. |
title_full |
Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov. |
title_fullStr |
Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov. |
title_full_unstemmed |
Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov. |
title_sort |
schizochlamydella orbicularis novis & visnovsky 2012, sp. nov. |
publisher |
Zenodo |
publishDate |
2012 |
url |
https://dx.doi.org/10.5281/zenodo.4926554 https://zenodo.org/record/4926554 |
long_lat |
ENVELOPE(21.683,21.683,65.809,65.809) |
geographic |
Antarctic New Zealand Boden |
geographic_facet |
Antarctic New Zealand Boden |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://zenodo.org/record/4894684 http://publication.plazi.org/id/FFA8DD092116C672783AFC0F4F7FFFE2 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.39.1.1 http://zenodo.org/record/4894684 http://publication.plazi.org/id/FFA8DD092116C672783AFC0F4F7FFFE2 https://dx.doi.org/10.5281/zenodo.4894692 https://dx.doi.org/10.5281/zenodo.4894702 https://dx.doi.org/10.5281/zenodo.4894704 https://dx.doi.org/10.5281/zenodo.4926555 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.4926554 https://doi.org/10.11646/phytotaxa.39.1.1 https://doi.org/10.5281/zenodo.4894692 https://doi.org/10.5281/zenodo.4894702 https://doi.org/10.5281/zenodo.4894704 https://doi.org/10.5281/zenodo.4926555 |
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1766274599329202176 |
spelling |
ftdatacite:10.5281/zenodo.4926554 2023-05-15T14:03:46+02:00 Schizochlamydella orbicularis Novis & Visnovsky 2012, sp. nov. Novis, Phil M. Visnovsky, Gabriel 2012 https://dx.doi.org/10.5281/zenodo.4926554 https://zenodo.org/record/4926554 unknown Zenodo http://zenodo.org/record/4894684 http://publication.plazi.org/id/FFA8DD092116C672783AFC0F4F7FFFE2 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.39.1.1 http://zenodo.org/record/4894684 http://publication.plazi.org/id/FFA8DD092116C672783AFC0F4F7FFFE2 https://dx.doi.org/10.5281/zenodo.4894692 https://dx.doi.org/10.5281/zenodo.4894702 https://dx.doi.org/10.5281/zenodo.4894704 https://dx.doi.org/10.5281/zenodo.4926555 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Plantae Chlorophyta Chlorophyceae Chlorococcales Radiococcaceae Schizochlamydella Schizochlamydella orbicularis Text Taxonomic treatment article-journal ScholarlyArticle 2012 ftdatacite https://doi.org/10.5281/zenodo.4926554 https://doi.org/10.11646/phytotaxa.39.1.1 https://doi.org/10.5281/zenodo.4894692 https://doi.org/10.5281/zenodo.4894702 https://doi.org/10.5281/zenodo.4894704 https://doi.org/10.5281/zenodo.4926555 2021-11-05T12:55:41Z Schizochlamydella orbicularis Novis & Visnovsky, sp. nov. (Figs 4D–E) Cellulae sphaericae vel subsphaericae, 3.1–6.1 µm latae. Paries cellularis tenuis laevisque. Chloroplastus viridis, parietalis, lobatus, in cellulis valentibus incisuris 2–4 instructus. Pyrenoides nulla. Cellulae coloniales, mucilaginae maturae per matricem mucilaginis achromaticam instratosam uniformiter aequidistantes. Autosporis 2–4–8 per sporangium regenerans, eae per expansionem matricis gradatim separantes. Type:— NEW ZEALAND: Westland: Mt Philistine, 1400 m, preserved cultured specimen from sample collected 30 November 2007, CHR610488. Cells colonial, spherical or near-spherical, 3.1–6.1 µm wide. Cell wall thin and smooth. Chloroplast green, parietal, lobed, with 2–4 incisions in healthy cells. Pyrenoid absent (Fig. 4E). Colonies mucilaginous, mature cells spaced evenly through colourless, unlayered mucilage matrix (Fig. 4A). Reproduction by autospores, 2–4–8 per sporangium, gradually separating through expansion of mucilage matrix (Fig. 4A). Sequence data for both the rbc L and 18 S rDNA genes suggested that the species formed a novel lineage in the Trebouxiophyceae, with no clear affinities (Figs 8, 9). Habitat:— Alpine herbfield soil. Distribution:— New Zealand. Etymology:— “Spherical shaped”, referring to the cell. Observations:— The morphology of this species—mucilaginous colonies, lack of pyrenoids and zoospores—suggests an affinity with Coccomyxa , yet S. orbicularis is clearly a distant relative of species in the Coccomyxa clades. More discussion of these clades is given in remarks on Pseudococcomyxa simplex (below). The colonial mucilaginous habit lacking zoospores accords with the Radiococcaceae sensu Ettl & Gärtner (1995). Of the genera therein, the New Zealand strain most closely matches Schizochlamydella Korshikov (1953), with cells irregularly dispersed in homogeneous mucilage. Only one other species of Schizochlamydella lacks a pyrenoid, namely S. minutissima Broady (1982). However, this species is slightly smaller than our strain, with ellipsoidal juvenile cells. One species has previously received attention at the molecular level (Wolf et al. 2003): Schizochlamydella capsulata (Watanabe 1977). This strain is distinguished from our material by containing one or more pyrenoids, and is placed in the Oocystaceae using 18S rDNA sequences (Wolf et al. 2003), not closely related to S. orbicularis (Fig. 8). Given the paucity of characters available to classify these species, it is not surprising that morphology does not reflect phylogeny. Typification in the genus Schizochlamydella is problematic, however. The type species of the genus, S. delicatula (West) Korshikov (1953) was transferred to the chrysophycean genus Phaeoschizochlamys Lemmerman (1898) by Bourrelly (1957). However, this transfer was made without pigment or molecular analyses; we regard the choice of Schizochlamys for our material as prudent until the phylogenetic placement of the type species is clearly established. Cultures:— LCR-CG9. : Published as part of Novis, Phil M. & Visnovsky, Gabriel, 2012, Novel alpine algae from New Zealand: Chlorophyta, pp. 1-30 in Phytotaxa 39 on pages 20-22, DOI: 10.11646/phytotaxa.39.1.1, http://zenodo.org/record/4894684 : {"references": ["Ettl, H. & Gartner, G. (1995) Syllabus der Boden-, Luft-, und Flechtenalgen. Gustav Fischer Verlag, Stuttgart Jena & New York. 721 pp.", "Korshikov, A. A. (1953) Vtznachnyk prisnovodnykh vdorostej Ukrajns'koj RSR. V. Pidklas Protokokovi (Protococcineae). Vakuol'ni (Vacuolales) ta Protokokovi (Protococcales). Akad. Nauk URSR, Kiev, p. 439.", "Broady, P. A. (1982) New records of Chlorophycean micro-algae cultured from Antarctic terrestrial habitats. Nova Hedwigia 36: 445 - 484.", "Wolf, M., Hepperle, D. & Krienitz, L. (2003) On the phylogeny of Radiococcus, Planktosphaeria and Schizochlamydella (Radiococcaceae, Chlorophyta). Biologia 58: 759 - 765.", "Watanabe, S. (1977) Schizochlamydella sphaerica sp. nov. (Chlorococcales) from Japanese soil. Journal of Japanese Botany 52: 338 - 343.", "Bourrelly, P. (1957) Recherches sur les Chrysophycees. Morphologie, phylogenie, systematique. Revue Algologique, Nouvelle Serie 3: 1 - 412."]} Text Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic New Zealand Boden ENVELOPE(21.683,21.683,65.809,65.809) |