Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico
Morphological and reproductive features of the genus Dermonema from the tropical Pacific coast of Mexico are reviewed in this report. The chief ones are: thallus construction, in which lax cells integrate well defined cortical, subcortical, and medullar zones; spermatangial branches arising from sub...
| Päätekijät: | , |
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| Aineistotyyppi: | Online |
| Kieli: | spa |
| Julkaistu: |
Instituto de Ecología, A.C.
1996
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| Linkit: | https://abm.ojs.inecol.mx/index.php/abm/article/view/951 |
| _version_ | 1799771250844762112 |
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| author | Pedroche, Francisco F. Avila Ortiz, Alejandrina |
| author_facet | Pedroche, Francisco F. Avila Ortiz, Alejandrina |
| author_sort | Pedroche, Francisco F. |
| collection | ABM |
| description | Morphological and reproductive features of the genus Dermonema from the tropical Pacific coast of Mexico are reviewed in this report. The chief ones are: thallus construction, in which lax cells integrate well defined cortical, subcortical, and medullar zones; spermatangial branches arising from subapical cells; carpogonial branches having a lateral origin; gonimoblasts being composed of diffuse sympodial filaments in which terminal cells are transformed directly into carpospores. The tetrasporangial phase was not observed. This genus shows preference for warm waters and is distributed in Mexico from Isla Ildefonso in the Gulf of California to Puerto Angel, Oaxaca. The plants live in the upper intertidal splashing zone with strong wave action and are vigorous between April and September. The type material of Nemalion virens J. Agardh was examined and found to be conspecific with the alga previously known as Dermonema frappieri (Montagne et Millardet) Boergesen. Consequently the new nomenclatural combination Dermonema virens (J. Agardh) Pedroche et Avila Ortiz, is established. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-951 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 1996 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-9512022-11-22T23:50:34Z Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico Aspectos morfológicos vegetativos y reproductivos de Dermonema (Rhodophyceae: Liagoraceae) en México Pedroche, Francisco F. Avila Ortiz, Alejandrina algology marine phycoflora phycology shinorine. algología ficoflora marina, ficología Morphological and reproductive features of the genus Dermonema from the tropical Pacific coast of Mexico are reviewed in this report. The chief ones are: thallus construction, in which lax cells integrate well defined cortical, subcortical, and medullar zones; spermatangial branches arising from subapical cells; carpogonial branches having a lateral origin; gonimoblasts being composed of diffuse sympodial filaments in which terminal cells are transformed directly into carpospores. The tetrasporangial phase was not observed. This genus shows preference for warm waters and is distributed in Mexico from Isla Ildefonso in the Gulf of California to Puerto Angel, Oaxaca. The plants live in the upper intertidal splashing zone with strong wave action and are vigorous between April and September. The type material of Nemalion virens J. Agardh was examined and found to be conspecific with the alga previously known as Dermonema frappieri (Montagne et Millardet) Boergesen. Consequently the new nomenclatural combination Dermonema virens (J. Agardh) Pedroche et Avila Ortiz, is established. En el presente trabajo se revisan los aspectos morfológicos, vegetativos y reproductivos, del género Dermonema, en la costa del Pacífico tropical mexicano. Entre ellos destacan: la construcción del talo, integrada por células laxas organizadas en corteza, subcorteza y médula; el origen subapical de las ramas espermatangiales; la formación lateral de ramas carpogoniales; gonimoblasto compuesto por filamentos simpodiales y la transformación directa de las células terminales de estos filamentos, en carposporas. No se observó la fase tetrasporofítica. Este género se manifiesta principalmente en las aguas cálidas y en México se distribuye desde Isla Ildefonso, en el Golfo de California, hasta Puerto Angel en el estado de Oaxaca. Habita la zona mesomareal alta en lugares con mucha agitación y se desarrolla, en general, con vigor entre abril y septiembre. El espécimen tipo de Nemalion virens J. Agardh fue examinado y resultó ser coespecífico con el alga previamente conocida como Dermonema frappieri (Montagne et Millardet) Boergesen, por lo que se establece la nueva combinación: Dermonema virens (J. Agardh) Pedroche et Avila Ortiz. Instituto de Ecología, A.C. 1996-01-01 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/951 10.21829/abm34.1996.951 Acta Botanica Mexicana; No. 34 (1996); 63-80 Acta Botanica Mexicana; Núm. 34 (1996); 63-80 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/951/1117 Derechos de autor 2016 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Pedroche, Francisco F. Avila Ortiz, Alejandrina Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico |
| title | Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico |
| title_full | Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico |
| title_fullStr | Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico |
| title_full_unstemmed | Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico |
| title_short | Vegetative and reproductive morphological aspects of Dermonema (Rhodophyceae: Liagoraceae) in Mexico |
| title_sort | vegetative and reproductive morphological aspects of dermonema (rhodophyceae: liagoraceae) in mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/951 |
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