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Siti Rhadiatun Mardiah
Universitas Samudra
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Morphological and Morphometric Identification of Amphibians (Rana) in Meurandeh Dayah Village, Langsa City Miduk Leonardo Tambun; Lusi Selvina Hutabarat; Sirem Suri; Nuryati; Siti Rhadiatun Mardiah; Ayu Wahyuni
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.6175

Abstract

Amphibians, categorized as vertebrate animals and characterized as poikilotherms, comprise three main groups known as Caudata, Gymnophiona, and Anura, with the latter commonly recognized as frogs or toads. The objective of this study is to examine the morphology and morphometrics of various frog species in Meurandeh Dayah Village, Langsa City. The research employs quantitative methods to facilitate a comparative analysis of each sample. The findings reveal the presence of six shutter species: Fejervarya cancrivora, Hylarana macrodactyia, Rana erythraea, Hylarana nicobariensis, Hyperolius horstockii, and Hylarana erythraea. The morphometric measurements conducted on these Rana species demonstrate distinctive morphological variations among them.
Anatomical Identification of Leaf Stomatal Cell Types in The Family Euphorbiacea Miduk Leonardo Tambun; Sirem Suri; Lili Anna Sari Siregar; Siti Rhadiatun Mardiah; Tri Mustika Sarjani
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i1.6305

Abstract

Stomata, which are specialized cells on the surface of leaves, undergo modification to form structures containing two guard cells. These cells play a crucial role in facilitating the exchange of water vapor and gases between the plant's internal environment and the surrounding atmosphere. Typically located on plant parts exposed to air, such as leaves, stems, and rhizomes, stomata distribution varies among different species. While some plants exhibit stomata on both upper and lower leaf surfaces, others, like water lilies, exclusively feature stomata on the upper side.The objective of the current investigation was to analyze the stomatal anatomy of various plant species within the Euphorbiaceae family. Employing a qualitative descriptive approach, the study aimed to characterize and interpret the stomatal types present on the leaves of Euphorbiaceae plants in the Langsa City region. The findings revealed the presence of five Euphorbiaceae species in Langsa City, including Euphorbia mili (jade fern), Jatropha curcas (Jatropha curcas), Codiaeum variegatum 'Norma' (norma puring), Codiaeum variegatum Bi (jet puring), and Codiaeum finger (finger puring), all of which exhibited parasitic stomatal types.
Co-Authors Ayu Wahyuni Lili Anna Sari Siregar Lusi Selvina Hutabarat Miduk Leonardo Tambun Nuryati Sirem Suri Tri Mustika Sarjani