Journal of Oil Palm Research Vol. 27  2015 March p.  19-29
DOI:

ISOLATION OF ACTINOMYCETES FROM RHIZOSPHERE OF OIL PALM (Elaeis guineensis Jacq.) FOR ANTAGONISM AGAINST Ganoderma boninense

Author(s): SHARIFFAH-MUZAIMAH, S A*; IDRIS, A S*; MADIHAH, A Z*; DZOLKHIFLI, O**; KAMARUZZAMAN, S** and CHEONG, P C H‡

This study reports the iso­la­tion and screen­ing of actin­o­mycetes from the rhi­zos­phere of oil palm (Elaeis guineen­sis Jacq.) for antag­o­nism against Gan­o­derma boni­nense, the causal agent of basal stem rot dis­ease of oil palm. A total of 600 iso­lates of spore pro­duc­ing and fast grow­ing actin­o­mycetes with dif­fer­ent mor­phol­ogy were tested for their inhibitory effects on G. boni­nense mycelial growth on dual cul­ture plates. About 13.5% of the iso­lates showed Per­cent­age Inhi­bi­tion of Radial Growth (PIRG) of more than 80% with 21 iso­lates exhib­ited observ­able abnor­mal growth of G. boni­nense. These 21 iso­lates were fur­ther tested using their cul­ture fil­trates in the form of liq­uid or pow­der (freeze-dried) for their effect towards G. boni­nense growth. Four iso­lates: AGA 043, AGA 048, AGA 347 and AGA 506 were high­lighted for their abil­ity to inhibit and exhibit poten­tial metabo­lites against G. boni­nense. This study iden­ti­fied actin­o­mycete strains with the abil­ity to affect and inhibit the growth of G. boninense.

Keywords: , , , ,

Author Information
* Malaysian Palm Oil Board, 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.


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