Cytology of mottling in two varieties of Oryza sativa L. caused by the Maize orange leafhopper Cicadulina bipunctata M.

Date

3-1989

Degree

Bachelor of Science in Biology

Major Course

Major in Cell Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Adelina A. Barrion

Abstract

Cross sections of normal and mottled leaves of two varie-ties of rice, Taichung Native 1 (TN!) end Binolayangon 791 were preDarei. The charactorist1c responses to viral infection of time cells of the TN1 variety was hypotrophy ( decrease in cell size ) and hypoplasy ( decrease in cell number ). Also, there was reduction in mesophyll cell layers. On the contrary, the Binnlayengon 791 variety exhibited hypertrophy ( increase in cell size ) end hyperplesy ( increase in cell number ). Also, there was decrease in number of mesophyll cell layers. Thus, the two varieties displayed different responses to viral infection.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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