Biological control of seedborne fungal pathogens of kenaf with antagonistic bacteria

Norhayati Madiha, . and Erneeza Mohd Hata, . and Kamaruzaman Sijam, . (2011) Biological control of seedborne fungal pathogens of kenaf with antagonistic bacteria. [Proceedings Paper]

Seed-borne pathogen is one of most important pathogen in plant seeds. These pathogens play an important role in deterioration and loss of germination of seeds. Isolation of seed-borne pathogens was done on kenaf seeds. Identification of the fungal pathogens was conducted using universal primers. Three fungal species were confirmed as causal agents of seed rot on kenaf seeds. The pathogens were identified as Lasiodoplodia theobromae Diaporthe sp. and Fusarium sp. Inoculated kenaf seeds showed loss of germination of up to 95. In vitro experiment was conducted to assess the antagonistic effect of selected diazotrophic bacteria on seed-borne fungal pathogens. This study was done to determine the possibility of controlling seed-borne pathogen with these antagonistic bacteria. The result showed that 6 species of diazotrophs Gamma Proteobacterium Beta Proteobacterium Bacillus subtilis Burkholderia cepacia Burkholderia vietnamiensis and Sphingomonas sp. significantly inhibited the growth of 3 fungal pathogens.

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Abstract

Seed-borne pathogen is one of most important pathogen in plant seeds. These pathogens play an important role in deterioration and loss of germination of seeds. Isolation of seed-borne pathogens was done on kenaf seeds. Identification of the fungal pathogens was conducted using universal primers. Three fungal species were confirmed as causal agents of seed rot on kenaf seeds. The pathogens were identified as Lasiodoplodia theobromae Diaporthe sp. and Fusarium sp. Inoculated kenaf seeds showed loss of germination of up to 95. In vitro experiment was conducted to assess the antagonistic effect of selected diazotrophic bacteria on seed-borne fungal pathogens. This study was done to determine the possibility of controlling seed-borne pathogen with these antagonistic bacteria. The result showed that 6 species of diazotrophs Gamma Proteobacterium Beta Proteobacterium Bacillus subtilis Burkholderia cepacia Burkholderia vietnamiensis and Sphingomonas sp. significantly inhibited the growth of 3 fungal pathogens.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. QR22 M3I61 2011 vol.2 Call Number
AGROVOC Term:	Hibiscus cannabinus
AGROVOC Term:	Kenaf
AGROVOC Term:	Biological control agents
AGROVOC Term:	Diaporthe
AGROVOC Term:	Fusarium
AGROVOC Term:	Plant diseases
AGROVOC Term:	Antagonistic bacteria
AGROVOC Term:	Natural enemies
AGROVOC Term:	Seeds
AGROVOC Term:	Isolation
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:15
URI:	http://webagris.upm.edu.my/id/eprint/12978

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