Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil
ABSTRACT The objective of this work was to identify and describe the morphological aspects of the pyrene and the different stages of developing embryos of Ilex paraguariensis. The pyrenes were collected in the year 2016 and 2017, of ripe fruits. The pyrenes, a total of 400 per site and year of colle...
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| Format: | Article |
| Language: | English |
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Universidade Federal De Viçosa
2022-06-01
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| Series: | Revista Ceres |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2022000300340&lng=en&tlng=en |
| _version_ | 1818470481106305024 |
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| author | Anieli Cioato de Souza Luciana Magda de Oliveira Katiane Paula Bagatini Louise Zago Puchale |
| author_facet | Anieli Cioato de Souza Luciana Magda de Oliveira Katiane Paula Bagatini Louise Zago Puchale |
| author_sort | Anieli Cioato de Souza |
| collection | DOAJ |
| description | ABSTRACT The objective of this work was to identify and describe the morphological aspects of the pyrene and the different stages of developing embryos of Ilex paraguariensis. The pyrenes were collected in the year 2016 and 2017, of ripe fruits. The pyrenes, a total of 400 per site and year of collection, remained for 24 h immersed in water for the section and internal observation. The pyrenes, with the visualized embryo, were used for the anatomical description and fixed for the histological evaluation. They were fixed in paraformaldehyde solution and included in Leica™ historesin. The samples were sectioned in Leica microtome with a thickness of 7 μm, and the sections were stained with Toluidine Blue. The pyrenes are formed by endocarp, integument, endosperm, and embryo. The embryos were classified in the globular, heart (occupying approximately 10% of the length of the seed), post heart (15% of length), torpedo (20% of length), and mature (40% of length) stages; and were located below the micropyle, aligned to the external point. The region surrounding the embryo, called the cavity, consists of a lignified layer. |
| first_indexed | 2024-04-13T21:37:40Z |
| format | Article |
| id | doaj.art-0209a729b4e7490cbcdf902dfa6d6030 |
| institution | Directory Open Access Journal |
| issn | 2177-3491 |
| language | English |
| last_indexed | 2024-04-13T21:37:40Z |
| publishDate | 2022-06-01 |
| publisher | Universidade Federal De Viçosa |
| record_format | Article |
| series | Revista Ceres |
| spelling | doaj.art-0209a729b4e7490cbcdf902dfa6d60302022-12-22T02:28:52ZengUniversidade Federal De ViçosaRevista Ceres2177-34912022-06-0169334034710.1590/0034-737x202269030012Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. HilAnieli Cioato de Souzahttps://orcid.org/0000-0001-5989-5740Luciana Magda de OliveiraKatiane Paula BagatiniLouise Zago PuchaleABSTRACT The objective of this work was to identify and describe the morphological aspects of the pyrene and the different stages of developing embryos of Ilex paraguariensis. The pyrenes were collected in the year 2016 and 2017, of ripe fruits. The pyrenes, a total of 400 per site and year of collection, remained for 24 h immersed in water for the section and internal observation. The pyrenes, with the visualized embryo, were used for the anatomical description and fixed for the histological evaluation. They were fixed in paraformaldehyde solution and included in Leica™ historesin. The samples were sectioned in Leica microtome with a thickness of 7 μm, and the sections were stained with Toluidine Blue. The pyrenes are formed by endocarp, integument, endosperm, and embryo. The embryos were classified in the globular, heart (occupying approximately 10% of the length of the seed), post heart (15% of length), torpedo (20% of length), and mature (40% of length) stages; and were located below the micropyle, aligned to the external point. The region surrounding the embryo, called the cavity, consists of a lignified layer.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2022000300340&lng=en&tlng=enyerba mateembryoseedstages of development |
| spellingShingle | Anieli Cioato de Souza Luciana Magda de Oliveira Katiane Paula Bagatini Louise Zago Puchale Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil Revista Ceres yerba mate embryo seed stages of development |
| title | Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil |
| title_full | Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil |
| title_fullStr | Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil |
| title_full_unstemmed | Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil |
| title_short | Morphological aspects and embryonic development after the dispersion of pirenes of Ilex paraguariensis A. St. Hil |
| title_sort | morphological aspects and embryonic development after the dispersion of pirenes of ilex paraguariensis a st hil |
| topic | yerba mate embryo seed stages of development |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2022000300340&lng=en&tlng=en |
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