Cytogenetic effects of banaba (Lagerstroemia speciosa L.) and native ampalaya (Momordica charantia L.) leaf decoctions on onion (Allium cepa L.) root tip cells

Date

3-2002

Degree

Bachelor of Science in Biology

Major Course

Major in Cell Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Merlyn S. Mendioro

Abstract

PAYCANA, SHEILA MARIE B. University of the Philippines Los Banos. March 2002 The Cytogenetic Effects of Banaba (Lagerstroemia speciosa L.) and Native Ampalaya (Momordica charantia L.) Leaf Decoctions on Onion (Allium cepa L.) Root Tip Cells. Undergraduate Thesis, BS Biology (Cell Biology).

ADVISER: Merlyn S. Mendioro

Onion root tip cells were treated with 0%, 25%, 50%, 75%, and 90% (w/v) leaf decoctions from banaba (Lagerstroemia speciosa L.) and native ampalaya (Momordica charantia L.). A significant reduction in mitotic indices was observed among the different concentrations of banaba (mean mitotic indices' control = 0.236; 25% = 0.067; 50% = 0.035; 75% = 0.016; 90% = 0.014). A significant increase of C-metaphase (mean frequencies: control = 0.000; 25% = 0.002, 50% = 0.012; 75% = 0.005; 90% = 0.006) was likewise noted, suggesting L. speciosa leaf extract may be a potential substitute for colchicine. Native ampalaya also reduced the frequency of mitotic indices (mean mitotic indices: control = 0.234; 25% = 0.077; 50% = 0.064; 75% = 0.049; 90% = 0.026). No chromosomal aberrations were detected using the two leaf decoctions.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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