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احمد علي احمد علام

Assistant Professor

أستاذ مساعد

كلية العلوم
King Saud University, College of Science, Department of Zoology, Riyadh11451, Saudi Arabia
المنشورات
مقال فى مجلة
2017

Microstructures of scales of some lizard species

, 5) Allam AA, Abo-Eleneen R, ALOthman S. . 2017

In the present study, it was hypothesized that micromorphology of the surface of many lizard scales appears to mimic the topography of the habitat in which they live. Many authors have suggested that the microstructure of the superficial surface of scales have undergone important adaptations and have functional value in lizards. In this study, we investigated the variation and adaptation of the micromorphology and microstructure of the superficial surface of the dorsal and ventral scales from the mid-body region of Stellagama stellio (Agamidae), Stenodactylus petrii (Gekkonidae), Acanthodactylus boskianus (Lacertidae), Eumeces schneideri (Scincidae), Trachylepis quinquetaeniata (Scincidae), Scincus scincus (Scincidae), Varanus griseus (Varanidae), Chameleo chameleon (Chamaeleonidae). Skin specimens were prepared and analyzed using scanning electron microscopy. The dorsal and ventral scale surfaces had microstructure in the studied species and they exhibited unique patterns that somewhat resembled the topography of the microhabitats in which they lived. Similarity was detected in the three most related species, those having a common family, Scincidae. Ecomorphological relationships were detected between the dorsal and ventral scale microstructures and microhabitats. We conclude that environmental factors have observable influences on the microstructure of lizard scales.

نوع عمل المنشور
paper
مجلة/صحيفة
Saudi Journal of Biological Sciences (Impact factor: 1.79)
الصفحات
online
مزيد من المنشورات
publications

Nicotine exposure during pregnancy induces oxidative stress and leads to behavioral alterations in early childhood and young adulthood. The current study aimed to investigate the possible…

بواسطة 1) Jamaan S. Ajarem, Gadh Al-Basher, Ahmed A. Allam and Ayman M. Mahmoud
2017
publications

In the present study, it was hypothesized that micromorphology of the surface of many lizard scales appears to mimic the topography of the habitat in which they live. Many authors have suggested…

بواسطة 5) Allam AA, Abo-Eleneen R, ALOthman S.
2017
publications

The power of tumorigenesis, chemo-resistance and metastasis in malignant ovarian
tumors resides in a tiny population of cancer cells known as ovarian cancer stem cells (OCSCs).

بواسطة Amoura Abou-ElNaga, Ghada Mutawa, Ibrahim M. El-Sherbiny, Hassan Abd-ElGhaffar, Ahmed A. Allam, Jamaan Ajarem and Shaker A. Mousa
2017