Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense
Cerastium regelii has a distribution confined largely to regions north of 70° N but has retained a strong short‐day (SD) response for primary flower induction despite the fact that it will hardly ever experience SD in a non‐frozen condition in its natural environment. However, like many other high‐l...
Published in: | Nordic Journal of Botany |
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Language: | English |
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crwiley:10.1111/j.1756-1051.1990.tb01761.x 2023-12-03T10:17:08+01:00 Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense Heide, O. M. Pedersen, K. Dahl, E. 1990 http://dx.doi.org/10.1111/j.1756-1051.1990.tb01761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1990.tb01761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1990.tb01761.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Nordic Journal of Botany volume 10, issue 2, page 141-147 ISSN 0107-055X 1756-1051 Plant Science Ecology, Evolution, Behavior and Systematics journal-article 1990 crwiley https://doi.org/10.1111/j.1756-1051.1990.tb01761.x 2023-11-09T14:16:00Z Cerastium regelii has a distribution confined largely to regions north of 70° N but has retained a strong short‐day (SD) response for primary flower induction despite the fact that it will hardly ever experience SD in a non‐frozen condition in its natural environment. However, like many other high‐latitude short‐long‐day plants it has also an alterntive long day (LD) pathway for floral initiation at low temperatures (<15°C). Floral primordia which are fully differentiated during SD have an absolute requirement for LD for flower development. The critical photoperiod for this LD response is about 16 h at 18°C and more than 20 h at 9°C. Plant morphology, including key characters for identification of the species, is greatly modified by environment and stage of plant development. At higher temperatures and LD C. regelii develops a striking resemblance to the sub‐arctic C. jenisejense . Based on examination of authentic herbarium material it is concluded that the latter is merely a high‐temperature morphotype of C. regelii . Article in Journal/Newspaper Arctic Wiley Online Library (via Crossref) Arctic Nordic Journal of Botany 10 2 141 147 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology, Evolution, Behavior and Systematics Heide, O. M. Pedersen, K. Dahl, E. Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense |
topic_facet |
Plant Science Ecology, Evolution, Behavior and Systematics |
description |
Cerastium regelii has a distribution confined largely to regions north of 70° N but has retained a strong short‐day (SD) response for primary flower induction despite the fact that it will hardly ever experience SD in a non‐frozen condition in its natural environment. However, like many other high‐latitude short‐long‐day plants it has also an alterntive long day (LD) pathway for floral initiation at low temperatures (<15°C). Floral primordia which are fully differentiated during SD have an absolute requirement for LD for flower development. The critical photoperiod for this LD response is about 16 h at 18°C and more than 20 h at 9°C. Plant morphology, including key characters for identification of the species, is greatly modified by environment and stage of plant development. At higher temperatures and LD C. regelii develops a striking resemblance to the sub‐arctic C. jenisejense . Based on examination of authentic herbarium material it is concluded that the latter is merely a high‐temperature morphotype of C. regelii . |
format |
Article in Journal/Newspaper |
author |
Heide, O. M. Pedersen, K. Dahl, E. |
author_facet |
Heide, O. M. Pedersen, K. Dahl, E. |
author_sort |
Heide, O. M. |
title |
Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense |
title_short |
Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense |
title_full |
Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense |
title_fullStr |
Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense |
title_full_unstemmed |
Environmental control of flowering and morphology in the high‐arctic Cerastium regelii, and the taxonomic status of C. jenisejense |
title_sort |
environmental control of flowering and morphology in the high‐arctic cerastium regelii, and the taxonomic status of c. jenisejense |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1111/j.1756-1051.1990.tb01761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1990.tb01761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1990.tb01761.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Nordic Journal of Botany volume 10, issue 2, page 141-147 ISSN 0107-055X 1756-1051 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1756-1051.1990.tb01761.x |
container_title |
Nordic Journal of Botany |
container_volume |
10 |
container_issue |
2 |
container_start_page |
141 |
op_container_end_page |
147 |
_version_ |
1784264094740643840 |