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Title First report of Rhizoctonia solani Kuhn. isolated from parthenium weed (Parthenium hysterophorus L.) in Malaysia.

Authors Karim, S. M. R.; Laila Naher; Norhafizah, M. Z.; Fatimah Kayat; Nabilah Sarip

Author Affiliation Faculty of Agro-Based Industry, Universiti Malaysia Kelantan (UMK), Jeli Campus, 17600 Jeli, Kelantan, Malaysia.

Journal Pertanika Journal of Tropical Agricultural Science 2018 Vol 41 No. 3 pp. 1355-1365

ISSN 1511-3701


Abstract

Fungal pathogens are useful in biocontrol of parthenium weed (Parthenium hysterophorus L.) for efficient weed management. Although parthenium is a major problem in Malaysia, no initiative for developing biocontrol method has been taken yet. Therefore, a field study was conducted at Kg. Durian Tunggal, Melaka (Latitude: 2°20′55″N, Longitude: 102°17′33″E), Malaysia in August 2017 to isolate disease-causing pathogens of parthenium weed. Diseased parthenium leaves with symptoms of yellowish-brown leaf blight and the parthenium stem with reddish-brown cankers on the basal part were collected and examined after they were cultured in potato dextrose agar (PDA) medium. Isolated fungus was identified based on morphological and microscopy analyses. Two isolates, UMKRSPL1 and UMKRSPS1, were isolated qualitatively from the infected leaves and stem respectively, that yielded dark-brown colonies of sclerotia on PDA. Under the microscopic study, the mycelia with multi-nucleolus hyphal cells were noted, which were septate and hyaline. The hyphae branched at right and acute angles to the primary hypha. There was no conidium. Pathogenicity of the fungus proved to cause similar symptoms on new, fresh parthenium leaf. Based on cultural and morphological characteristics, the pathogen was identified as Rhizoctonia solani Kuhn. There is no published study on R. solani isolated from P. hysterophorus in Malaysia. This is the first research on the species found on parthenium weed in the country. The identification of pathogens from parthenium weed would help develop bioherbicide by extracting the toxins produced by the fungus in the media broth for effective control of P. hysterophorus in Malaysia.
Publication type
Journal article

Publisher
Universiti Putra Malaysia Press

Year of publication
2018

Location of publication
UPM Serdang

Country of publication
Malaysia

Language of publication
English

Language of summary
English

Geographical location
Malaysia

Record number
20183378641

Organism descriptor
Parthenium hysterophorus
plants
Thanatephorus cucumeris


Descriptor
biological control agents
fungal morphology
hosts
natural enemies
new host records
weeds


Identifier
biocontrol agents
biological control organisms


Broad Term
APEC countries
ASEAN Countries
Commonwealth of Nations
Developing Countries
South East Asia
Asia
Threshold Countries
Parthenium
Asteraceae
Asterales
eudicots
angiosperms
Spermatophyta
plants
eukaryotes
Thanatephorus
Ceratobasidiaceae
Cantharellales
Agaricomycetes
Agaricomycotina
Basidiomycota
fungi