Studies of Two Seed-Borne Fungi of Some Malaysian Forest Tree Species

Lee, Su See (1981) Studies of Two Seed-Borne Fungi of Some Malaysian Forest Tree Species. Masters thesis, Universiti Pertanian Malaysia.

[img] PDF
2247Kb

Abstract

Twenty-six species of saprophytic fungi and ten species of potentially pathogenic fungi were isolated from seeds of five indigenous and three introduced forest tree species. Isolation of the fungi using both the blotter and the agar plate methods was carried out to ensure the isolation of as many species as possible from each seed sample. Six new species of fungi not previously recorded in Malaysia were discovered. They were Beltraniella nilgrica Pirozynski & Patil, Chaetomium trilaterale Chivers, Cylindrocladium scoparium Morgan, Cryptodiaporthe sp., Gliocephalo trichum simplex (J. Meyer) Wiley & Simmons and Gliocladium sp. Various factors affecting the growth of two fungi - Cylindrocladium scoparium Morgan, a new species recorded in Malaysia which is Fotentially pathogenic, and Pestalotiopsis versicol or (Speg.) Steyaert, one of the most commonly occurring saprophytes - were investigated. These factors were the effect of nutrients, light, temperature, pH and various vitamins. Suitable culture conditions were developed for both fungi. Seedling inoculation tests showed that Cylindrocladium scoparium was pathogenic to seedlings of Dipterocarpus grandiflorus Blanco, a species indigenous to Malaysian forests, and Pinus caribaea Mor., a species of tropical pine introduced into and pl anted in this country. An investigation into some of the enzymes produced by the two fungi was also carried out to obtain a better understanding of the roles of C. scoparium and P. versicolor in seed deterioration and pathogenicity.

Item Type:Thesis (Masters)
Subject:Seed - borne phytopathogens - Malaysia
Subject:Forests and forestry
Chairman Supervisor:Ashari Bin Muktar
Call Number:FH 1981 2
Faculty or Institute:Faculty of Forestry
ID Code:9840
Deposited By: Mohd Nezeri Mohamad
Deposited On:23 Feb 2011 07:10
Last Modified:23 Feb 2011 07:17

Repository Staff Only: item control page

Document Download Statistics

This item has been downloaded for since 23 Feb 2011 07:10.

View statistics for "Studies of Two Seed-Borne Fungi of Some Malaysian Forest Tree Species"


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.