Sains Malaysiana 47(4)(2018): 645-649

http://dx.doi.org/10.17576/jsm-2018-4704-01

 

Anatomi Rizom dan Stip Genus Pleocnemia Presl (Tectariaceae) di Semenanjung Malaysia

(Anatomy of Rhizomes and Stipes Genus Pleocnemia Presl (Tectariaceae) in Peninsular Malaysia)

 

MAIDEEN, H.,* SYAZWANI, B., NIK NORHAZRINA, N.M.K., NUR-ALIAH, M.K., NORAINI, T. & NUR FARHANIM, I.

 

School of Environmental and Natural Resource Sciences Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia

 

Received: 15 June 2017/Accepted: 13 October 2017

 

ABSTRAK

 

Kajian anatomi rizom dan stip telah dijalankan ke atas empat spesies Pleocnemia yang terdapat di Semenanjung Malaysia iaitu P. irregularis, P. conjugata, P. hemiteliiformis dan P. olivacea untuk mengkaji variasi ciri anatomi yang terdapat pada rizom dan stip ini. Kajian ini melibatkan keratan rentas stip dan rizom dengan menggunakan mikrotom gelongsor. Ciri anatomi stip seperti bentuk luaran, corak kehadiran sel sklerenkima di bawah epidermis, jenis dan bentuk stel dan ciri anatomi rizom seperti kehadiran sel rembes tanin dan kehadiran serta jenis trikom pada sesetengah spesies boleh digunakan untuk pengecaman spesies. Ciri sepunya bagi spesies Pleocnemia yang dikaji ialah kehadiran sel sklerenkima mengelilingi stel dan di bawah lapisan sel epidermis, stel jenis kompleks serta stel bagi kesemua spesies kajian berbentuk protostel primitif (bulat). Antara ciri diagnosis yang ditemui dalam kajian ini ialah bentuk luaran stip, bilangan lapisan skelerenkima di bawah epidermis, kehadiran sel rembes tanin bagi spesies P. irregularis dan P. hemiteliiformis serta kehadiran jenis trikom yang berbeza dalam keempat-empat spesies. Ciri diagnosis ini adalah ciri yang baik untuk pengecaman spesies kajian. Keputusan kajian ini menunjukkan bahawa ciri anatomi stip dan rizom mempunyai nilai taksonomi dalam genus Pleocnemia dan boleh digunakan sebagai data sokongan untuk pengecaman dan pembezaan spesies.

 

Kata kunci: Anatomi; Pleocnemia; protostel primitif; rizom; Semenanjung Malaysia

 

ABSTRACT

 

Anatomical studies of the stipe and rhizome were conducted on four Pleocnemia species recorded in Peninsular Malaysia, namely P. irregularis, P. conjugata, P. hemiteliiformis and P. olivacea to investigate the anatomical variations of the stipe and rhizome. Cross-section of the stipe and rhizome was done using sliding microtome. Stipe anatomical characteristics such as stipe outline, pattern of schlerenchyma cells under epidermal layers, stele types and shapes and rhizome anatomical characteristics such as presence of tanniferous idioblast cells, presence and types of trichomes were useful for species identification. The shared characters in all the Pleocnemia species studied were the presence of schlerenchyma cells below the epidermal layers and surrounding the steles, complex steles shape and primitive protestele (round). Diagnostic characteristics found in this study were stipe outline, number of schlerenchyma cell layers below the epidermal cells, presence of tanniferous idioblast cells in P. irregularis and P. hemiteliiformis and the different types of trichomes in all the four species. These diagnostic characters were useful for identification of the studied species. The present study showed that stipe and rhizome anatomical characteristics have taxonomic value in Pleocnemia and are useful support data for species differentiation and identification.

 

Keywords: Anatomy; Peninsular Malaysia; Pleocnemia; primitive protostele; rhizome

 

REFERENCES

Christenhusz, M.J.M. & Chase, M.W. 2014. Trends and concepts in fern classification. Annals of Botany 113: 571-594.

Christenhusz, M.J.M., Zhang, X.C. & Schneider, H. 2011. A linear sequence of extant families and genera of lycophytes and ferns. Phytotaxa 19: 7-54.

Dickison, W.C. 2000. Integrative Plant Anatomy. San Diego: Academic Press.

Holttum, R.E. 1968. A Revised Flora of Malaya II, Fern of Malaya. Ed. Ke-2. Singapura: Government Printing.

Holttum, R.E. 1951. The fern-genus Pleocnemia Presl. Reinwardtia 1(2): 171-189.

Holttum, R.E. 1947. A revised classification of Leptosporangiate ferns. The Journal of the Linnean Society Botany 53: 123- 158.

Johansen, D.A. 1940. Plant Microtechnique. New York: McGraw- Hill.

Liu, H.M., Zhang, X.C. & Chen, Z. 2007. Polyphyly of the fern family Tectariaceae sensu Ching: Insights from cpDNA sequence data. Science in China Series C Life Sciences 50: 789-798.

Maideen, H., Hazwani, A.N., Nurfarahain, Z., Damanhuri, A., Noraini, T., Rusea, G., Qistina, L. & Masnoryante, M. 2013. Systematic significance of stipe anatomy of Selaginella (Selaginellaceae) in Peninsular Malaysia. Sains Malaysiana 42(5): 693-696.

Metcalfe, C.R. & Chalk, L. 1983. Anatomy of the Dicotyledons. Jilid 2. Ed. Ke-2. Oxford: Clarendron Press.

Noraini, T., Ruzi, A.R., Nadiah, N., Nisa, R.N., Maideen, H. & Solihani, S.N. 2012. Ciri anatomi stip bagi beberapa spesies Davallia (Davalliaceae) di Malaysia. Sains Malaysiana 41(1): 53-62.

Noraini, T., Amirul-Aiman, A.J., Jaman, R., Nor-Fairuz, A.R., Maideen, H., Damanhuri, A. & Ruzi, A.R. 2014. Systematic significance of stipe anatomy in Peninsular Malaysian Blechnum L. (Blechnaceae) species. Malaysian Applied Biology 43(2): 119-128.

Ogura, Y. 1972. Comparative Anatomy of the Vegetative Organs of the Pteridophytes. Berlin: Borntraeger.

Presl, C.B. 1836. Tentamen Pteridographiae. Prague: Theophili Hasse.

PPG I. 2016. A community-derived classification for extant lycophytes and ferns. Journal of Systematics and Evolution 54(6): 563-603.

Roux, J.P. & Van-Wyk, A.E. 2000. Morphology and anatomy of the rhizome and frond in the African species of Polystichum (Pteropsida: Dryopteridaceae). Bothalia 30(1): 57-68.

Saas, J.E. 1958. Botanical Microtechnique. Ed. Ke-3. Iowa: Iowa State University Press.

Simpson, M.G. 2006. Plant Systematics. London: Elsevier Academic Press.

Smith, R.A., Pryer, K.M., Schuettpelz, E., Korall, P., Schneider, H.  & Wolf,  P.G.  2006. A classification  for  extant ferns. Taxon 55: 705-731.

Wang, C.H. 1999. Aspidiaceae. Dlm. Flora Reipublicae Popularis Sinicae, Vol. 6, No. 1, edited by Wu, S.H. Beijing: Science Press. hlm. 1-103.

Xing, F., Yan, Y., Dong, S., Wang, F., Christenhusz, M.J.M. & Hovenkamp, P. 2013. Tectariaceae. Dlm. Flora of China, vol. 2-3, Lycopodiaceae through Polypodiaceae, edited by Wu, Z., Raven, P.H. & Hong, D. Beijing: Science Press. hlm. 730-746.

 

 

*Corresponding author; email: aliahkhaduwi@gmail.com