Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae)
Additional Information is given in this paper on morphogenetic features of the gametophyte of two fern species of the Blechnaceae. Woodwardia spinulosa, growing from the North of México to Central America (Nicaragua) has dark brown, bilateral and ellipsoidal spores with wavy and folded perispore; th...
| Những tác giả chính: | , |
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| Định dạng: | Online |
| Ngôn ngữ: | spa |
| Được phát hành: |
Instituto de Ecología, A.C.
1993
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| Truy cập trực tuyến: | https://abm.ojs.inecol.mx/index.php/abm/article/view/663 |
| _version_ | 1799771168461291520 |
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| author | Perez-García, Blanca Riba, Ramón |
| author_facet | Perez-García, Blanca Riba, Ramón |
| author_sort | Perez-García, Blanca |
| collection | ABM |
| description | Additional Information is given in this paper on morphogenetic features of the gametophyte of two fern species of the Blechnaceae. Woodwardia spinulosa, growing from the North of México to Central America (Nicaragua) has dark brown, bilateral and ellipsoidal spores with wavy and folded perispore; the germination pattern is of Vittaría type and the prothallial development is of Aspidium type. The mature gametophytes are bisexual, with antheridia and archegonia typical of leptosporangiate ferns. Juvenile sporophytes with one or two leaves were observed 11 months after spore germination. Woodwardia martinezii is only known from a few localities in the States of Veracruz and Hidalgo, México; the spores and the germination and prothallial development patterns are similar to those of W. spinulosa, butthe spores are larger. Spatulate gametophytes with antheridia and without archegonia were observed, and also vegetativo gametophytes with apogamous sporophytes. The gametophyte development of these two species is consistent with other blechnaceous ferns previously studied. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-663 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 1993 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-6632023-02-08T02:52:02Z Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae) Perez-García, Blanca Riba, Ramón Additional Information is given in this paper on morphogenetic features of the gametophyte of two fern species of the Blechnaceae. Woodwardia spinulosa, growing from the North of México to Central America (Nicaragua) has dark brown, bilateral and ellipsoidal spores with wavy and folded perispore; the germination pattern is of Vittaría type and the prothallial development is of Aspidium type. The mature gametophytes are bisexual, with antheridia and archegonia typical of leptosporangiate ferns. Juvenile sporophytes with one or two leaves were observed 11 months after spore germination. Woodwardia martinezii is only known from a few localities in the States of Veracruz and Hidalgo, México; the spores and the germination and prothallial development patterns are similar to those of W. spinulosa, butthe spores are larger. Spatulate gametophytes with antheridia and without archegonia were observed, and also vegetativo gametophytes with apogamous sporophytes. The gametophyte development of these two species is consistent with other blechnaceous ferns previously studied. En este trabajo se proporciona información adicional sobre ia morfogénesis de la fase gametofítica de dos especies de helechos de la familia Blechnaceae. Woodwardia spinulosa, que se encuentra desde el norte de México hasta América Central (Nicaragua), tiene esporas de color pardo oscuro, bilaterales, elipsoidales y con perispora en forma de pliegues ondulados, irregulares y evidentes ; el patrón de germinación es de tipo Vittaria y el desarrollo protálico de tipo Aspidium. A la madurez, los gametofitos son bisexuados, con anteridios y arquegonios aparentemente normales del tipo común de los helechos leptosporangiados. A los 11 meses después de la germinación se observaron esporofitos juveniles con 1 ó 2 hojas. W. martinezii solamente es conocida de unas cuantas localidades en los estados de Veracruz e Hidalgo, en México; sus esporas y los patrones de germinación y de desarrollo protálico son similares a los de W. spinulosa, aunque las esporas son de mayor tamaño. Se observaron gametofitos maduros espatulados con diferenciación de anteridios y sin rastros de arquegonios y gametofitos vegetativos, en los que hubo desarrollo de esporofitos apogámicos. El desarrollo de los gametofitos de estas dos especies concuerda con el de otros géneros de la familia Blechnaceae estudiados por otros autores. Instituto de Ecología, A.C. 1993-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/663 10.21829/abm21.1993.663 Acta Botanica Mexicana; No. 21 (1993); 7-14 Acta Botanica Mexicana; Núm. 21 (1993); 7-14 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/663/829 Derechos de autor 2016 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Perez-García, Blanca Riba, Ramón Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae) |
| title | Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae) |
| title_full | Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae) |
| title_fullStr | Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae) |
| title_full_unstemmed | Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae) |
| title_short | Observaciones sobre los gametofitos de Woodwardia martinezii Maxon et Weatherby y W. spinulosa Mart. & Gal. (Blechnaceae) |
| title_sort | observaciones sobre los gametofitos de woodwardia martinezii maxon et weatherby y w. spinulosa mart. & gal. (blechnaceae) |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/663 |
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