Pollen morphology of Staelia s.l. (Rubiaceae).
Pollen morphology of Staelia s.l. (Rubiaceae). This paper deals the study of the pollen grains of Staelia s.l. Currently, it have been studied only four of 25 species of this taxon. We carried out an analysis of the pollen morphology of all species belonging to the four genera of Staelia s.l.: Antho...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Sociedad Argentina de Botánica
2014
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/7821 |
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I10-R325-article-7821 |
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I10-R325-article-78212024-09-03T22:47:28Z Pollen morphology of Staelia s.l. (Rubiaceae). Morfología polínica de Staelia s.l. (Rubiaceae) . Salas, Roberto M. Cabral, Elsa L. Anthospermopsis multiaperturado Planaltina polen Spermacoceae Tessiera Anthospermopsis multiaperturate Planaltina pollen Spermacoceae Tessiera. Pollen morphology of Staelia s.l. (Rubiaceae). This paper deals the study of the pollen grains of Staelia s.l. Currently, it have been studied only four of 25 species of this taxon. We carried out an analysis of the pollen morphology of all species belonging to the four genera of Staelia s.l.: Anthospermopsis, Planaltina, Tessiera and Staelia s.s. As result, we found a remarkable homogeneity of pollinic characters within each genus, which is evidenced in a single pollen type for each taxon, except for Anthospermopsis. Tessiera and Planaltina are differentiated from Staelia by the pollen size (P=42-75, E=50-78.4 vs. P=21-34, E=20-30.8 µm) and length of colpi (LC/P= 0.22-0.31 vs. LC/P=0.57-0.77 µm), whereas the pollen of Anthospermopsis is virtually indistinguishable from the remaining species of Staelia. Furthermore, the three pollen types are very similar to those stated for African and Australian Spermacoce species. The pollinic type of Staelia is also shared with the monospecific genus Emmeorhiza. For these reasons, we proposed to extend the classification of the pollen types previously described for Borreria and Spermacoce (designated by Arabic numbers, 1-20) to the genera studied here. The pollen grains are described and illustrated by images of scanning electron microscope. The lower surface of the nexine is described through broken grains. Este trabajo trata el estudio de los granos de polen de Staelia s.l. Actualmente, es un grupo escasamente estudiado en este aspecto, ya que solo se describieron cuatro de 25 especies. Se estudió el polen de todas las especies de Anthospermopsis, Planaltina, Tessiera y Staelia s.s. Como resultado, se encontró una notable homogeneidad de caracteres polínicos dentro de cada género, que se pone de manifiesto en un único tipo de polen para cada taxón, excepto para Anthospermopsis. Tessiera y Planaltina se diferencian de Staelia por el tamaño de los granos (P=42-75 y E=50-78,4 vs. P=21-34 y E=20-30,8 µm) y longitud de los colpos (LC/P= 0,22-0,31 vs. 0,57-0,77 µm), mientras que Anthospermopsis es prácticamente indistinguible de las otras especies de Staelia. Además, los tres tipos polínicos son similares a los establecidos para especies de Spermacoce de África y Australia. El tipo polínico de Staelia también es compartido con Emmeorhiza. Por estas razones, se propone incorporar a la clasificación de los tipos polínicos descritos anteriormente para Borreria y Spermacoce (designados con números arábigos, del 1-20) a los géneros aquí estudiados. Los tres tipos polínicos son descritos e ilustrados mediante imágenes de microscopio electrónico de barrido. El interior de la nexina es también analizada a partir de granos rotos. Sociedad Argentina de Botánica 2014-07-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/7821 10.31055/1851.2372.v49.n1.7821 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 49 No. 1 (2014): Abril; 51-65 Boletín de la Sociedad Argentina de Botánica; Vol. 49 Núm. 1 (2014): Abril; 51-65 Boletín de la Sociedad Argentina de Botánica; v. 49 n. 1 (2014): Abril; 51-65 1851-2372 0373-580X 10.31055/1851.2372.v49.n1 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/7821/8691 |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| language |
Español |
| format |
Artículo revista |
| topic |
Anthospermopsis multiaperturado Planaltina polen Spermacoceae Tessiera Anthospermopsis multiaperturate Planaltina pollen Spermacoceae Tessiera. |
| spellingShingle |
Anthospermopsis multiaperturado Planaltina polen Spermacoceae Tessiera Anthospermopsis multiaperturate Planaltina pollen Spermacoceae Tessiera. Salas, Roberto M. Cabral, Elsa L. Pollen morphology of Staelia s.l. (Rubiaceae). |
| topic_facet |
Anthospermopsis multiaperturado Planaltina polen Spermacoceae Tessiera Anthospermopsis multiaperturate Planaltina pollen Spermacoceae Tessiera. |
| author |
Salas, Roberto M. Cabral, Elsa L. |
| author_facet |
Salas, Roberto M. Cabral, Elsa L. |
| author_sort |
Salas, Roberto M. |
| title |
Pollen morphology of Staelia s.l. (Rubiaceae). |
| title_short |
Pollen morphology of Staelia s.l. (Rubiaceae). |
| title_full |
Pollen morphology of Staelia s.l. (Rubiaceae). |
| title_fullStr |
Pollen morphology of Staelia s.l. (Rubiaceae). |
| title_full_unstemmed |
Pollen morphology of Staelia s.l. (Rubiaceae). |
| title_sort |
pollen morphology of staelia s.l. (rubiaceae). |
| description |
Pollen morphology of Staelia s.l. (Rubiaceae). This paper deals the study of the pollen grains of Staelia s.l. Currently, it have been studied only four of 25 species of this taxon. We carried out an analysis of the pollen morphology of all species belonging to the four genera of Staelia s.l.: Anthospermopsis, Planaltina, Tessiera and Staelia s.s. As result, we found a remarkable homogeneity of pollinic characters within each genus, which is evidenced in a single pollen type for each taxon, except for Anthospermopsis. Tessiera and Planaltina are differentiated from Staelia by the pollen size (P=42-75, E=50-78.4 vs. P=21-34, E=20-30.8 µm) and length of colpi (LC/P= 0.22-0.31 vs. LC/P=0.57-0.77 µm), whereas the pollen of Anthospermopsis is virtually indistinguishable from the remaining species of Staelia. Furthermore, the three pollen types are very similar to those stated for African and Australian Spermacoce species. The pollinic type of Staelia is also shared with the monospecific genus Emmeorhiza. For these reasons, we proposed to extend the classification of the pollen types previously described for Borreria and Spermacoce (designated by Arabic numbers, 1-20) to the genera studied here. The pollen grains are described and illustrated by images of scanning electron microscope. The lower surface of the nexine is described through broken grains. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2014 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/7821 |
| work_keys_str_mv |
AT salasrobertom pollenmorphologyofstaeliaslrubiaceae AT cabralelsal pollenmorphologyofstaeliaslrubiaceae AT salasrobertom morfologiapolinicadestaeliaslrubiaceae AT cabralelsal morfologiapolinicadestaeliaslrubiaceae |
| first_indexed |
2024-09-03T22:49:36Z |
| last_indexed |
2024-09-03T22:49:36Z |
| _version_ |
1809216990371381248 |