Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae
The proposed placement of Avicennia L. into Acanthaceae had been made based only on molecular data. The main objective of this study is to investigate whether anatomical leaf characteristics of the Avicennia species support this placement. This study also aims to determine the leaf anatomical charac...
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| Format: | Article |
| Language: | English |
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Malaysian Nature Society
2015
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| Online Access: | http://irep.iium.edu.my/52233/ http://irep.iium.edu.my/52233/1/Che%20nurul%20aini%202015.pdf |
| _version_ | 1848784019226886144 |
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| author | Mohd Yunus, Noor Syaheera Talip, Noraini A. K., Radhiah Che Amri, Che Nurul Aini |
| author_facet | Mohd Yunus, Noor Syaheera Talip, Noraini A. K., Radhiah Che Amri, Che Nurul Aini |
| author_sort | Mohd Yunus, Noor Syaheera |
| building | IIUM Repository |
| collection | Online Access |
| description | The proposed placement of Avicennia L. into Acanthaceae had been made based only on molecular data. The main objective of this study is to investigate whether anatomical leaf characteristics of the Avicennia species support this placement. This study also aims to determine the leaf anatomical characteristics and their taxonomic value for some selected taxa ofAcanthaceae. Seven species were studied, namely A. alba Blume, A. officinalis L., A. lanata Ridley, Justicia gendarussa Burm. f., J. betonica L., Strobilanthes crispa Blume and Asystasia gangetica subsp. micrantha (L.) T. Anderson. Methods used were sectioning using sliding microtome, leaf clearing, epidermal peels, and observation under a light microscope. Findings have shown great differences between Avicenniaspecies andother studied taxa. There are eleven outstanding leaf anatomical variations which may be used to distinguish all Avicennia species from the others, such as the presence and absence of brachysclereids, hypodermal layers, cystoliths and the presence of denture on the abaxial side of leaf margin, type of trichomes and stomata, areolar venation, marginal outline, shape of vascular bundles in the midrib, and the pattern of anticlinal walls on the adaxial and abaxial epidermis cells. The presence of mucilaginous idioblasts cells is common in all species studied. This study has shown that the genus Avicennia does not share similar leaf anatomical characteristics with the other taxa in Acanthaceae. As a conclusion, the placement of the genus Avicennia into the Acanthaceae has not been supported by leaf anatomical characteristics; therefore, it is suggested that this placement be revised. |
| first_indexed | 2025-11-14T16:30:35Z |
| format | Article |
| id | iium-52233 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T16:30:35Z |
| publishDate | 2015 |
| publisher | Malaysian Nature Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-522332024-07-09T09:37:01Z http://irep.iium.edu.my/52233/ Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae Mohd Yunus, Noor Syaheera Talip, Noraini A. K., Radhiah Che Amri, Che Nurul Aini QK Botany The proposed placement of Avicennia L. into Acanthaceae had been made based only on molecular data. The main objective of this study is to investigate whether anatomical leaf characteristics of the Avicennia species support this placement. This study also aims to determine the leaf anatomical characteristics and their taxonomic value for some selected taxa ofAcanthaceae. Seven species were studied, namely A. alba Blume, A. officinalis L., A. lanata Ridley, Justicia gendarussa Burm. f., J. betonica L., Strobilanthes crispa Blume and Asystasia gangetica subsp. micrantha (L.) T. Anderson. Methods used were sectioning using sliding microtome, leaf clearing, epidermal peels, and observation under a light microscope. Findings have shown great differences between Avicenniaspecies andother studied taxa. There are eleven outstanding leaf anatomical variations which may be used to distinguish all Avicennia species from the others, such as the presence and absence of brachysclereids, hypodermal layers, cystoliths and the presence of denture on the abaxial side of leaf margin, type of trichomes and stomata, areolar venation, marginal outline, shape of vascular bundles in the midrib, and the pattern of anticlinal walls on the adaxial and abaxial epidermis cells. The presence of mucilaginous idioblasts cells is common in all species studied. This study has shown that the genus Avicennia does not share similar leaf anatomical characteristics with the other taxa in Acanthaceae. As a conclusion, the placement of the genus Avicennia into the Acanthaceae has not been supported by leaf anatomical characteristics; therefore, it is suggested that this placement be revised. Malaysian Nature Society 2015 Article PeerReviewed application/pdf en http://irep.iium.edu.my/52233/1/Che%20nurul%20aini%202015.pdf Mohd Yunus, Noor Syaheera and Talip, Noraini and A. K., Radhiah and Che Amri, Che Nurul Aini (2015) Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae. Malayan Nature Journal, 67 (1). pp. 81-94. ISSN 0025-1291 http://www.mnj.my/index.php/mnj |
| spellingShingle | QK Botany Mohd Yunus, Noor Syaheera Talip, Noraini A. K., Radhiah Che Amri, Che Nurul Aini Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae |
| title | Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae |
| title_full | Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae |
| title_fullStr | Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae |
| title_full_unstemmed | Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae |
| title_short | Leaf anatomical characteristics of Avicennia L. and some selected taxa in Acanthaceae |
| title_sort | leaf anatomical characteristics of avicennia l. and some selected taxa in acanthaceae |
| topic | QK Botany |
| url | http://irep.iium.edu.my/52233/ http://irep.iium.edu.my/52233/ http://irep.iium.edu.my/52233/1/Che%20nurul%20aini%202015.pdf |