Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae)
The genus Calamus in the Arecaceae has so far remained embryologically unknown. The present work on the development of the microsporangium and male gametophyte in 5 species of Calamus (Arecaceae) is the first investigation. The tapetum is of secretory type and its cells become binucleate. The pollen...
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National Taiwan University
2003-09-01
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| Series: | Taiwania |
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| Online Access: | http://tai2.ntu.edu.tw/taiwania/abstract.php?type=abstract&id=29 |
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doaj-dcd5b135d26a4e048223681929e5c88b2020-11-25T00:12:37ZengNational Taiwan UniversityTaiwania0372-333X0372-333X2003-09-0148318019310.6165/tai.2003.48(3).180Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae)H. N. Krishna Kumar0S. N. Ramaswamy1Department of Studies in Botany, University of Mysore, Manasagangotri, Mysore - 570 006, India.Department of Studies in Botany, University of Mysore, Manasagangotri, Mysore - 570 006, India.The genus Calamus in the Arecaceae has so far remained embryologically unknown. The present work on the development of the microsporangium and male gametophyte in 5 species of Calamus (Arecaceae) is the first investigation. The tapetum is of secretory type and its cells become binucleate. The pollen mother cells undergo successive divisions to produce isobilateral and tetrahedral tetrads. The mature pollen grains in C. nagbettai, C. stoloniferus and C. travancoricus are 2-celled at the time of shedding. In C. gamblei and C. rotang they are, however, 3-celled when shed.http://tai2.ntu.edu.tw/taiwania/abstract.php?type=abstract&id=29CalamusAnther wallPollen |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
H. N. Krishna Kumar S. N. Ramaswamy |
| spellingShingle |
H. N. Krishna Kumar S. N. Ramaswamy Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae) Taiwania Calamus Anther wall Pollen |
| author_facet |
H. N. Krishna Kumar S. N. Ramaswamy |
| author_sort |
H. N. Krishna Kumar |
| title |
Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae) |
| title_short |
Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae) |
| title_full |
Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae) |
| title_fullStr |
Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae) |
| title_full_unstemmed |
Contributions to the Study of Microsporogenesis in Calamus L. (Arecaceae) |
| title_sort |
contributions to the study of microsporogenesis in calamus l. (arecaceae) |
| publisher |
National Taiwan University |
| series |
Taiwania |
| issn |
0372-333X 0372-333X |
| publishDate |
2003-09-01 |
| description |
The genus Calamus in the Arecaceae has so far remained embryologically unknown. The present work on the development of the microsporangium and male gametophyte in 5 species of Calamus (Arecaceae) is the first investigation. The tapetum is of secretory type and its cells become binucleate. The pollen mother cells undergo successive divisions to produce isobilateral and tetrahedral tetrads. The mature pollen grains in C. nagbettai, C. stoloniferus and C. travancoricus are 2-celled at the time of shedding. In C. gamblei and C. rotang they are, however, 3-celled when shed. |
| topic |
Calamus Anther wall Pollen |
| url |
http://tai2.ntu.edu.tw/taiwania/abstract.php?type=abstract&id=29 |
| work_keys_str_mv |
AT hnkrishnakumar contributionstothestudyofmicrosporogenesisincalamuslarecaceae AT snramaswamy contributionstothestudyofmicrosporogenesisincalamuslarecaceae |
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