Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean
Attempts were made to hybridize Palmaria palmata (L.) O. Kuntze from the North Atlantic Ocean with Palmaria palmata f. mollis (Setchell and Gardner) Guiry from the eastern North Pacific Ocean. No hybrids were obtained in reciprocal crosses, although fertilization was readily achieved for control cro...
Published in: | Canadian Journal of Botany |
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Canadian Science Publishing
1985
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Online Access: | http://dx.doi.org/10.1139/b85-047 http://www.nrcresearchpress.com/doi/pdf/10.1139/b85-047 |
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crcansciencepubl:10.1139/b85-047 2023-12-17T10:46:23+01:00 Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean Meer, John P. van der Bird, Carolyn J. 1985 http://dx.doi.org/10.1139/b85-047 http://www.nrcresearchpress.com/doi/pdf/10.1139/b85-047 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 63, issue 3, page 398-403 ISSN 0008-4026 Plant Science journal-article 1985 crcansciencepubl https://doi.org/10.1139/b85-047 2023-11-19T13:38:35Z Attempts were made to hybridize Palmaria palmata (L.) O. Kuntze from the North Atlantic Ocean with Palmaria palmata f. mollis (Setchell and Gardner) Guiry from the eastern North Pacific Ocean. No hybrids were obtained in reciprocal crosses, although fertilization was readily achieved for control crosses within each taxon. The number and placement of carpogonia on well-developed female gametophytes (disc diameter, 100–150 μm) was different for the two taxa. The Atlantic plants had comparatively few carpogonia (1–10), which were always found at the center of the holdfast disc or on young upright fronds, whereas the Pacific plants had many carpogonia (15–60), which were most commonly located away from the centermost portion of the disc and were never observed on developing fronds. The two taxa also differed in their susceptibility to a small parasitic Oomycete of the genus Petersenia Sparrow, which is pathogenic for f. mollis but did not infect the Atlantic plants. Cytological examination revealed that f. mollis has n = 21 chromosomes, the same as P. palmata from the north Atlantic Ocean. In view of the genetic isolation between the two forms, P. palmata f. mollis is raised to specific status as Palmaria mollis (Setchell & Gardner) van der Meer & Bird. Article in Journal/Newspaper North Atlantic Canadian Science Publishing (via Crossref) Pacific Gardner ENVELOPE(65.903,65.903,-70.411,-70.411) Holdfast ENVELOPE(-66.590,-66.590,-66.803,-66.803) Canadian Journal of Botany 63 3 398 403 |
institution |
Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science |
spellingShingle |
Plant Science Meer, John P. van der Bird, Carolyn J. Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean |
topic_facet |
Plant Science |
description |
Attempts were made to hybridize Palmaria palmata (L.) O. Kuntze from the North Atlantic Ocean with Palmaria palmata f. mollis (Setchell and Gardner) Guiry from the eastern North Pacific Ocean. No hybrids were obtained in reciprocal crosses, although fertilization was readily achieved for control crosses within each taxon. The number and placement of carpogonia on well-developed female gametophytes (disc diameter, 100–150 μm) was different for the two taxa. The Atlantic plants had comparatively few carpogonia (1–10), which were always found at the center of the holdfast disc or on young upright fronds, whereas the Pacific plants had many carpogonia (15–60), which were most commonly located away from the centermost portion of the disc and were never observed on developing fronds. The two taxa also differed in their susceptibility to a small parasitic Oomycete of the genus Petersenia Sparrow, which is pathogenic for f. mollis but did not infect the Atlantic plants. Cytological examination revealed that f. mollis has n = 21 chromosomes, the same as P. palmata from the north Atlantic Ocean. In view of the genetic isolation between the two forms, P. palmata f. mollis is raised to specific status as Palmaria mollis (Setchell & Gardner) van der Meer & Bird. |
format |
Article in Journal/Newspaper |
author |
Meer, John P. van der Bird, Carolyn J. |
author_facet |
Meer, John P. van der Bird, Carolyn J. |
author_sort |
Meer, John P. van der |
title |
Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean |
title_short |
Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean |
title_full |
Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean |
title_fullStr |
Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean |
title_full_unstemmed |
Palmaria mollis stat. nov.: a newly recognized species of Palmaria (Rhodophyceae) from the northeast Pacific Ocean |
title_sort |
palmaria mollis stat. nov.: a newly recognized species of palmaria (rhodophyceae) from the northeast pacific ocean |
publisher |
Canadian Science Publishing |
publishDate |
1985 |
url |
http://dx.doi.org/10.1139/b85-047 http://www.nrcresearchpress.com/doi/pdf/10.1139/b85-047 |
long_lat |
ENVELOPE(65.903,65.903,-70.411,-70.411) ENVELOPE(-66.590,-66.590,-66.803,-66.803) |
geographic |
Pacific Gardner Holdfast |
geographic_facet |
Pacific Gardner Holdfast |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Canadian Journal of Botany volume 63, issue 3, page 398-403 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b85-047 |
container_title |
Canadian Journal of Botany |
container_volume |
63 |
container_issue |
3 |
container_start_page |
398 |
op_container_end_page |
403 |
_version_ |
1785569847196778496 |