Anatomical Study of Stem, Petiole, Leaf, Tuber, Root and Flower of Dioscorea hispida Dennst. (Dioscoreaceae) by Using Optical Microscope, SEM and TEM

Abstract

Observation under optical microscope, Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) on stem, leaf, petiole, tuber, root and flower of Dioscorea hispida Dennst. presented detailed information of anatomical characters that defined this species. The anatomical study showed that Dioscorea hispida leaves had similar feature with eudicot plants, but the stem, tuber and flower resembled monocotyledonous plants. The leaf surface of Dioscorea hispida was covered with rough, bristly and spiny trichomes or hairy surface.

Keywords: Dioscorea hispida, optical microscope, Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), anatomy

ABSTRAK

Kajian dengan menggunakan mikroskop optik, Mikroskop Elektron Pengimbas (SEM) dan Mikroskop Pancaran Elektron (TEM) telah dilaksanakan untuk mendapatkan maklumat terperinci ciri-ciri anatomi batang, daun, petiol, akar dan bunga Dioscorea hispida Dennst. yang menakrifkan spesies ini. Kajian anatomi menunjukkan daun Dioscorea hispida mempunyai sifat yang menyamai tumbuhan eudikot, manakala batang, ubi dan bunga menyerupai tumbuhan bermonokotiledon. Permukaan daun Dioscorea hispida adalah diselaputi oleh trikom kasar, berbulu dan berduri atau permukaan yang berbulu.

Kata kunci: Dioscorea hispida, mikroskop optik, Mikroskop Elektron Pengimbas (SEM), Mikroskop Pancaran Elektron (TEM), anatomi