Identification of hemocyte types present in male and female Leersia-infesting Nilaparvata lugens (Stal) (Homoptera : Delphacidae)

Date

5-1986

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Liwayway M. Engle

Co-adviser

Merlyn Mendioro

Abstract

MARIA BELTA CAPILI MAGNAYE. UNIVERSITY OF THE PHILIPPINES AT LOS BAROS. MAY, 1986. IDENTIFICATION OF HEMOCYTE TYPES PRESENT IN MALE AND FEMALE LEERSIA-INFESTING NILAPARVATA LUGENS (STAL) (HOMOPTERA: DELPHACIDAE).

Adviser: Dr. Liwayway M. Engle

Co-adviser: Mrs. Merlyn Mendioro

The types of hemocytes present in newly-emerged Leersia-infesting Nilanarvata lugens, both male and female, were determined. Insect blood was obtained from the insect legs by squashing and staining with Giemsa stain. Using the identification key of Gupta (1979), the hemocytes observed were identified. Cells from 50 males and 50 females were morphologically characterized and counted according to the shape observed. To determine whether the differences between the male and the female cell count and cell size are significant or not, statistical analysis was performed. Blood sample from one-day old or newly-emerged Nila-parvata lugens was found to contain only one type of cell, the granulocyte. These granulocytes exist in two different shapes: elongate and spherule. The former shape of granulocyte seemed to be the predominant one. Female hemocyte count showed a significant difference from the male hemocyte count with the former having a higher

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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