Embryo sac haustorium in Dryas octopetala L. (Rosaceae)
The embryo sac haustorium found in Dryas octopetala L. from the Tatra Mts is the first record of its occurrence in Rosaceae. At the eight-nucleate stage of the embryo sac, the antipodal end of the central cell began to grow into a narrow caecum filled with dense cytoplasm and elongated in the chalaz...
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Online Access: | https://doi.org/10.5586/asbp.1987.022 https://doaj.org/article/a7fcab302d1a4d5bb9581e79bded1611 |
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ftdoajarticles:oai:doaj.org/article:a7fcab302d1a4d5bb9581e79bded1611 2023-05-15T16:02:42+02:00 Embryo sac haustorium in Dryas octopetala L. (Rosaceae) Romana Czapik 2014-01-01T00:00:00Z https://doi.org/10.5586/asbp.1987.022 https://doaj.org/article/a7fcab302d1a4d5bb9581e79bded1611 EN eng Polish Botanical Society https://pbsociety.org.pl/journals/index.php/asbp/article/view/2994 https://doaj.org/toc/2083-9480 2083-9480 doi:10.5586/asbp.1987.022 https://doaj.org/article/a7fcab302d1a4d5bb9581e79bded1611 Acta Societatis Botanicorum Poloniae, Vol 56, Iss 2, Pp 209-214 (2014) Dryas octopetala Rosaceae embryo sac haustorium Botany QK1-989 article 2014 ftdoajarticles https://doi.org/10.5586/asbp.1987.022 2022-12-31T09:41:51Z The embryo sac haustorium found in Dryas octopetala L. from the Tatra Mts is the first record of its occurrence in Rosaceae. At the eight-nucleate stage of the embryo sac, the antipodal end of the central cell began to grow into a narrow caecum filled with dense cytoplasm and elongated in the chalazal direction leaving the three antipodals in situ. The haustorium enlarged and lost its characteristic shape after the period of fertilization. Finally, the embryo sac occupied almost the whole length of the ovule. Situated at its chalazal end there was either dense cytoplasm with a group of endosperm nuclei or dense, grainy cytoplasm only, if fertilization had not taken place. Article in Journal/Newspaper Dryas octopetala Directory of Open Access Journals: DOAJ Articles Acta Societatis Botanicorum Poloniae 56 2 209 214 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Dryas octopetala Rosaceae embryo sac haustorium Botany QK1-989 |
spellingShingle |
Dryas octopetala Rosaceae embryo sac haustorium Botany QK1-989 Romana Czapik Embryo sac haustorium in Dryas octopetala L. (Rosaceae) |
topic_facet |
Dryas octopetala Rosaceae embryo sac haustorium Botany QK1-989 |
description |
The embryo sac haustorium found in Dryas octopetala L. from the Tatra Mts is the first record of its occurrence in Rosaceae. At the eight-nucleate stage of the embryo sac, the antipodal end of the central cell began to grow into a narrow caecum filled with dense cytoplasm and elongated in the chalazal direction leaving the three antipodals in situ. The haustorium enlarged and lost its characteristic shape after the period of fertilization. Finally, the embryo sac occupied almost the whole length of the ovule. Situated at its chalazal end there was either dense cytoplasm with a group of endosperm nuclei or dense, grainy cytoplasm only, if fertilization had not taken place. |
format |
Article in Journal/Newspaper |
author |
Romana Czapik |
author_facet |
Romana Czapik |
author_sort |
Romana Czapik |
title |
Embryo sac haustorium in Dryas octopetala L. (Rosaceae) |
title_short |
Embryo sac haustorium in Dryas octopetala L. (Rosaceae) |
title_full |
Embryo sac haustorium in Dryas octopetala L. (Rosaceae) |
title_fullStr |
Embryo sac haustorium in Dryas octopetala L. (Rosaceae) |
title_full_unstemmed |
Embryo sac haustorium in Dryas octopetala L. (Rosaceae) |
title_sort |
embryo sac haustorium in dryas octopetala l. (rosaceae) |
publisher |
Polish Botanical Society |
publishDate |
2014 |
url |
https://doi.org/10.5586/asbp.1987.022 https://doaj.org/article/a7fcab302d1a4d5bb9581e79bded1611 |
genre |
Dryas octopetala |
genre_facet |
Dryas octopetala |
op_source |
Acta Societatis Botanicorum Poloniae, Vol 56, Iss 2, Pp 209-214 (2014) |
op_relation |
https://pbsociety.org.pl/journals/index.php/asbp/article/view/2994 https://doaj.org/toc/2083-9480 2083-9480 doi:10.5586/asbp.1987.022 https://doaj.org/article/a7fcab302d1a4d5bb9581e79bded1611 |
op_doi |
https://doi.org/10.5586/asbp.1987.022 |
container_title |
Acta Societatis Botanicorum Poloniae |
container_volume |
56 |
container_issue |
2 |
container_start_page |
209 |
op_container_end_page |
214 |
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1766398367153258496 |