Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae)
A palynological study of six species of Pterospermum was conducted to investigate variation in pollen micromorphological characteristics. The studied species were P. diversifolium, P. elongatum, P. jackianum, P. javanicum, P. lanceifolium and P. subpeltatum. Pollen was subjected to acetolysis, singl...
| Main Authors: | , , , , , , , |
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| Format: | Article |
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Sociedade Botanica do Brasil
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/95291/ |
| _version_ | 1848862119995375616 |
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| author | Ahmad Juhari, Muhammad Amirul Aiman Talip, Noraini Che Amri, Che Nurul Aini Mohamad Basir, Nur Syazwani Abdul Rahman, Mohamad Ruzi Zohari, Ahmad Fitri Ghazali, Mohd Norfaizal Abdullah Siam, Nordahlia |
| author_facet | Ahmad Juhari, Muhammad Amirul Aiman Talip, Noraini Che Amri, Che Nurul Aini Mohamad Basir, Nur Syazwani Abdul Rahman, Mohamad Ruzi Zohari, Ahmad Fitri Ghazali, Mohd Norfaizal Abdullah Siam, Nordahlia |
| author_sort | Ahmad Juhari, Muhammad Amirul Aiman |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A palynological study of six species of Pterospermum was conducted to investigate variation in pollen micromorphological characteristics. The studied species were P. diversifolium, P. elongatum, P. jackianum, P. javanicum, P. lanceifolium and P. subpeltatum. Pollen was subjected to acetolysis, single-grain techniques and dehydration series, and observed using light and scanning electron microscopy. The results reveal some common characters shared by all the studied species, namely: echinate-granulate exine ornamentation; porate pollen class; and circular amb. Variation was found in the ratio of exine thickness, pollen size, and average spine length, outline, shape, measurements, spine size and the presence of an annulus. These characters proved to be valuable for identifying and differentiating the studied species. This study shows that morphological characteristics of Pterospermum pollen have taxonomic value, especially for the identification and differentiation of species of the subfamily Dombeyoideae and even other Malvaceae s.l. |
| first_indexed | 2025-11-15T13:11:58Z |
| format | Article |
| id | upm-95291 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:11:58Z |
| publishDate | 2021 |
| publisher | Sociedade Botanica do Brasil |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-952912023-02-17T01:20:30Z http://psasir.upm.edu.my/id/eprint/95291/ Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae) Ahmad Juhari, Muhammad Amirul Aiman Talip, Noraini Che Amri, Che Nurul Aini Mohamad Basir, Nur Syazwani Abdul Rahman, Mohamad Ruzi Zohari, Ahmad Fitri Ghazali, Mohd Norfaizal Abdullah Siam, Nordahlia A palynological study of six species of Pterospermum was conducted to investigate variation in pollen micromorphological characteristics. The studied species were P. diversifolium, P. elongatum, P. jackianum, P. javanicum, P. lanceifolium and P. subpeltatum. Pollen was subjected to acetolysis, single-grain techniques and dehydration series, and observed using light and scanning electron microscopy. The results reveal some common characters shared by all the studied species, namely: echinate-granulate exine ornamentation; porate pollen class; and circular amb. Variation was found in the ratio of exine thickness, pollen size, and average spine length, outline, shape, measurements, spine size and the presence of an annulus. These characters proved to be valuable for identifying and differentiating the studied species. This study shows that morphological characteristics of Pterospermum pollen have taxonomic value, especially for the identification and differentiation of species of the subfamily Dombeyoideae and even other Malvaceae s.l. Sociedade Botanica do Brasil 2021 Article PeerReviewed Ahmad Juhari, Muhammad Amirul Aiman and Talip, Noraini and Che Amri, Che Nurul Aini and Mohamad Basir, Nur Syazwani and Abdul Rahman, Mohamad Ruzi and Zohari, Ahmad Fitri and Ghazali, Mohd Norfaizal and Abdullah Siam, Nordahlia (2021) Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae). Acta Botanica Brasilica, 35 (4). 495 - 502. ISSN 0102-3306; ESSN:1677-941X https://www.scielo.br/j/abb/a/NcTQKXB3snC5jgWLQdnyR3w/?lang=en 10.1590/0102-33062020abb0442 |
| spellingShingle | Ahmad Juhari, Muhammad Amirul Aiman Talip, Noraini Che Amri, Che Nurul Aini Mohamad Basir, Nur Syazwani Abdul Rahman, Mohamad Ruzi Zohari, Ahmad Fitri Ghazali, Mohd Norfaizal Abdullah Siam, Nordahlia Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae) |
| title | Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae) |
| title_full | Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae) |
| title_fullStr | Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae) |
| title_full_unstemmed | Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae) |
| title_short | Taxonomic implications of pollen of some species of the genus Pterospermum Schreb. (Malvaceae s.l. subfam. Dombeyoideae) |
| title_sort | taxonomic implications of pollen of some species of the genus pterospermum schreb. (malvaceae s.l. subfam. dombeyoideae) |
| url | http://psasir.upm.edu.my/id/eprint/95291/ http://psasir.upm.edu.my/id/eprint/95291/ http://psasir.upm.edu.my/id/eprint/95291/ |