Survey of host plants of Cassytha filiformis l. (Lauraceae) in selected coastal sites in Luzon
Date of Publication
2019
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Biology
Subject Categories
Agriculture
College
College of Science
Department/Unit
Biology
Thesis Adviser
Emelina H. Mandia
Defense Panel Chair
Mary Jane Cruz Flores
Abstract/Summary
Cassytha filiformis is a twining and scrambling parasitic plant known to spread very fast along coastal areas. A survey to determine the host plants of C. filiformis and their morpho-anatomical defenses was carried out in selected coastal areas in Luzon. Quadrats (3 x 3 m) were laid within the perimeter of C. filiformis growing in the coastal thickets in Morong-Bataan, Baler-Aurora and Alaminos-Pangasinan to identify the host plants of C. filiformis and the frequency of their parasitization. A total of 67 plant species belonging to 65 genera and 30 families were found parasitized by C. filiformis. These were mostly herbaceous plants (60%) under the families Fabaceae, Poaceae, and Lamiaceae to name a few. The abundance and frequency showed that the Lantana camara is the species most frequently parasitized meanwhile, the family Fabaceae recorded the most parasit izations for an individual family having 9 of its genera parasitized. Morphoanatomical examinations revealed that the host plants exhibit high trichome density by as much as 100 units/mm2, the trichomes being mostly of glandular type. The haustoria of C. filiformis, were found to penetrate up to the xylem tissue of the herbaceous stems. In the woody stems, the haustoria were found to attach to the host plants’ epidermis only. The study confirms the non-discriminatory nature of C. filiformis as a parasitic plant. Herbaceous habits and presence of trichomes serve as poor defense systems against C.filiformis.
Abstract Format
html
Language
English
Format
Electronic
Accession Number
CDTU017638
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
1 computer disc 4 3/4 in.
Keywords
Cassytha; Lauraceae
Recommended Citation
Santos, J. (2019). Survey of host plants of Cassytha filiformis l. (Lauraceae) in selected coastal sites in Luzon. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/3022