دورية أكاديمية
Callose deposition analysis with special emphasis on plasmodesmata ultrastructure during megasporogenesis in Sedum (Crassulaceae).
| العنوان: | Callose deposition analysis with special emphasis on plasmodesmata ultrastructure during megasporogenesis in Sedum (Crassulaceae). |
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| المؤلفون: | Brzezicka E; Department of Plant Cytology and Embryology, Faculty of Biology, University of Gdańsk, 59 Wita Stwosza St., 80-308, Gdańsk, Poland., Kozieradzka-Kiszkurno M; Department of Plant Cytology and Embryology, Faculty of Biology, University of Gdańsk, 59 Wita Stwosza St., 80-308, Gdańsk, Poland. malgorzata.kozieradzka-kiszkurno@ug.edu.pl. |
| المصدر: | Protoplasma [Protoplasma] 2024 Jan; Vol. 261 (1), pp. 31-41. Date of Electronic Publication: 2023 Jul 07. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Springer Country of Publication: Austria NLM ID: 9806853 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1615-6102 (Electronic) Linking ISSN: 0033183X NLM ISO Abbreviation: Protoplasma Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: <1998->: Wien ; New York : Springer Original Publication: Leipzig : Verlag von Gebrüder Borntraeger, 1927- |
| مواضيع طبية MeSH: | Sedum*/ultrastructure , Crassulaceae*/ultrastructure , Glucans*, Gametogenesis, Plant ; Plasmodesmata/ultrastructure |
| مستخلص: | In this study, the results of the first detection of callose within the ovules of the representatives of the family Crassulaceae are presented. This study was carried out on three species of the genus Sedum. Data analysis showed differences in the callose deposition pattern between Sedum hispanicum and Sedum ser. Rupestria species during megasporogenesis. Callose was present mostly in the transversal walls of dyads and tetrads in S. hispanicum. Furthermore, a complete loss of callose from the cell walls of the linear tetrad and a gradual and simultaneous deposition of callose within the nucellus of S. hispanicum were observed. The findings of this study showed the presence of hypostase with callose in the ovules of S. hispanicum, which is not common in other angiosperms. The remaining species tested in this study-Sedum sediforme and Sedum rupestre-showed a typical, well-known callose deposition pattern for plants with the monospore type of megasporogenesis and the Polygonum type of embryo sac. The functional megaspore (FM) in all studied species was located most chalazally. FM is a mononuclear cell, which wall is callose-free in the chalazal pole. The study presents the causes of different patterns of callose deposition within Sedum and their relationship with the systematic position of the study species. Moreover, embryological studies present an argument for excluding callose as a substance that forms an electron-dense material near the plasmodesmata in megaspores of S. hispanicum. This research expands the knowledge about the embryological processes of succulent plants from the family Crassulaceae. (© 2023. The Author(s).) |
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| فهرسة مساهمة: | Keywords: Cell wall; Monosporic megasporogenesis; Ovule; Plant reproductive development; Ultrastructure |
| المشرفين على المادة: | 9064-51-1 (callose) 0 (Glucans) |
| تواريخ الأحداث: | Date Created: 20230707 Date Completed: 20240112 Latest Revision: 20240114 |
| رمز التحديث: | 20240114 |
| مُعرف محوري في PubMed: | PMC10784368 |
| DOI: | 10.1007/s00709-023-01879-x |
| PMID: | 37418158 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 1615-6102 |
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| DOI: | 10.1007/s00709-023-01879-x |