Study on incidence, molecular characterization and pathogenesis of different fungi associated with sudden death of mango.
Asma Rashid, Shazia Iram, Iftikhar Ahmad
Author Affiliation: Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan.
International Journal of Agronomy and Plant Production 4 : 3485-3488
Abstract : Mango (Mangifera indica L.), an important fruit crop of subtropical countries and its production is significantly affected by different Ceratocystis spp., which is one of the most damaging pathogen causes mango sudden death. In this paper we review the studies on the incident, pathogenesis of fungus and its molecular characterization. Symptoms of the disease includes marginal scorching of leaf, foliar symptoms of nutritional deficiencies, die back of small branches, oozing of clear or cloudy exudates, either from terminal buds or from branches, scaffold limbs or trunks and vascular discoloration. The most common fungi associated with sudden death of mango were Alternaria alternata, Cladosporium sp., C. gloeosporioides (G. cingulata), Dothiorella dominicana, Fusarium sp., Lasidiplodia theobromae (B. theobromae), Penicillum sp., Pestalotiopsis sp. and Phomopsis spp. Pathogenic behavior of different fungi to particular host has also been used to characterize the isolates as additional criteria to the cultural and the morphological characteristics. Variation in Ceratocystis spp was confirmed by different molecular techniques RAPDs, AFLP, SSRs, RFLP and gene sequencing.