Morphological, Pathogenic, and Molecular Characterization of Phytophthora palmivora Isolates Causing Black Pod Disease on Cocoa in Peninsular Malaysia

• DOI: 10.26855/ijfsa.2022.06.002
• Publication Date: 2022-04-28T06:47:25Z
• Authors: Wael Alsultan; Wong Mui Yun; Zainal Abidin Mio...; Ganesan Vadamalai; Ahmad Khairulmazmi; Abdullah M. Al-Sadi; Osamah Rashed; Abbas Nasehi; Abdel Razzaq Al-T...
• Keywords: Phytophthora palmivora

Black pod caused by Phytophthora palmivora causes major losses on cocoa (Theobroma cacao) in Malaysia and worldwide.In this study, morphological molecular characterization as well pathogenicity of 14 isolates P. palmivora, obtained from main producing states Peninsular including Perak Pahang, were determined.In general, the results indicated that divided into two groups based their geographical origins isolates.According to characteristics, although some overlap was observed among states, Pahang grew faster different agar media, various shapes sporangia including, globose, limoniform, ovoid with papilla recorded for these isolates.Pathogenicity tests are more aggressive compared Perak.Phylogenetic analysis a combined dataset ITS, EF-1α, COX1 all belonged no difference isolates.These suggest pathogenic diversity Malaysian is related origins.