Advances in Food Science and Technology

Advances in Food Science and Technology ISSN: 6732-4215 Vol. 8 (3), pp. 001-004, March, 2020. © International Scholars Journals

Full Length Research Paper

Effect of metabolites produced by Trichoderma species against Ceratocystis paradoxa in culture medium

E.I. Eziashi^1*, N.U. Uma², A.A. Adekunle² and C.E. Airede¹

¹Nigerian Institute for Oil Palm Research (NIFOR), Plant Pathology Division, P.M.B. 1030 Benin City, Edo State. Nigeria.

²Department of Botany and Microbiology, University of Lagos, Akoka, Yaba, Lagos State. Nigeria.

Accepted 14 September, 2019

Abstract

Metabolites released from Trichoderma viride, T. polysporum, T. hamatum and T. aureoviride were tested in culture medium against Ceratocystis paradoxa, which causes black seed rot in oil palm sprouted seeds. The Trichoderma metabolites had similar fungistatic effects on the growth of C. paradoxa except those from T. aureoviride. The inhibition varied depending on the Trichoderma species producing the metabolites; from 2.0% to 64% in volatile, 0.0% to 74% in non-volatile and 0.0% to 81% from direct- diffusible metabolites. C. paradoxa growth was significantly reduced in the presence of metabolites produced by T. viride and T. polysporum than the other species. T. aureoviride had the least growth inhibition, and medium containing direct-diffusible metabolite supported highest inhibition of C. paradoxa.

Key words: Metabolite, Trichoderma, Ceratocystis paradoxa, Fungistatic.