Feeding patterns and electivity of Salmacis sphaeroides Linn. in Sandbar, Puerto Galera, Oriental Mindoro, Philippines

Date

4-2002

Degree

Bachelor of Science in Biology

Major Course

Major in Cell Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Celia B. Dela Viña

Abstract

Chromosome behavior in mitosis, chromosome number and chromosome morphology were investigated in three Philippine native orchids, namely Trichoglolits sonama Lind! , Tnchogloms phllipprnensn Lindl , and Trtchogloms sp. Meristematic cells observed from the root tips of the three orchid species exhibited normal mitotic activity Mitotic index was relatively high in T phihppthensis (40 99%) and Trichogloms sp. (35 59%) but low in T sonosma (19.19%) Karyotypes of Prometaphase cells revealed a diploid chromosome number, 2,38 in all the three species. The chromosomes were small, with relative lengths ranging from 0 028 to 0 073 in T tonosma, 0 032 to 0 079 in T philippmensts, and 0 032 to 0.078 in Trichogloms v, Chromosome type determination based on arm ratio revealed that almost all of the chromosomes of the three orchid species were metacentnc

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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