Sampling of agricultural soils from the Mexican northeastern region was performed to detect Trichoderma spp., genetically characterize it, and assess its potential use as a biologic control agent against Macrophomina phaseolina. M. phaseolina is a phytopathogen that attacks over 500 species of cultivated plants and causes heavy losses in the regional sorghum crop. Sampling was performed immedia...

Macrophomina phaseolina is the most devastating pathogen which causes charcoal rot and root rot diseases in various economically important crops. Three strains M. phaseolina 1156, M. phaseolina 1160, and M. phaseolina PCMC/F1 were tested for their virulence on sunflower (Helianthus annuus L.) and chickpea (Cicer arietinum L.). The strains showed high virulence on both hosts with a disease score...

Microplot experiments were established in 1992, 1993, and 1994 to investigate the relationships among Macrophomina phaseolina, Criconemella xenoplax, mad Tylenchorhynchus annulatus on grain sorghum in Louisiana. A factorial treatment arrangement of two grain sorghum hybrids (De Kalb DK 50 and Pioneer hybrid 8333), three levels of M. phaseolina (0, 10, and 100 colony-forming units (CFU)/g soil),...

The aim of this study was to assess the potential bacterial antagonists to control Macrophomina phaseolina root-rot of safflower by using screening methods. In total, 38 fluorescent pseudomonads isolated from rhizosphere soil of healthy safflower plants were collected from major safflower growing areas, 13 were initially selected based on dual culture technique on potato dextrose agar media. Fu...

charcoal rot diseases of melon caused by macrophomina phaseolina is one of the most important diseases of melon occurring in regions with variable climate. reduction of yield of melon by this disease has been reported up to 100% in some of garmsar field. salinity which can cause the important trouble in plant metabolism and nutrition is present in semnan and garmsar areas. melon is susceptible ...

UNLABELLED BACKGROUND Biotransformation offers chemo enzymatic system to modify the compounds into their novel analogues which are difficult to synthesize by chemical methods. This paper describes the biotransformational studies of ambrox, one of the most important components of natural Ambergris (wale sperm) with fungal and plant cell culture. RESULTS Biotransformation of (-)-ambrox (1) w...

Introduction: Production of a novel polygalacturonase (PG) active at pH = 3.0 and suitable to be used in fruit juice industries from Macrophomina phaseolina was evaluated. Suitable carbon, nitrogen and phosphorous forms were determined and the condition was optimized for higher PG production. Materials and methods: Macrophomina phaseolina was cultured in so called production medium. The secreto...