The occurrence of viral co-infection is a common phenomenon in cultivated and native plant species and can alter the dynamics of virus infection. In this study, disease progress was examined in single and mixed infections of Cucumber mosaic virus (CMV) and Bean yellow mosaic virus (BYMV) by measuring the rate of symptom development, disease severity and area under disease progress curve on infe...

BACKGROUND According to the World Health Organization (WHO), iron, iodine, and Vitamin A deficiencies are the most common forms of malnutrition, leading to severe public health consequences. The importance of iron and zinc in human nutrition and the number of children found to be deficient in these nutrients make further studies on retention in cooked grains and cooked bean broth important. O...

Phosphorus (P), an essential element for plants, is one of the most limiting nutrients for plant growth. A few transcription factor (TF) genes involved in P-starvation signalling have been characterized for Arabidopsis thaliana and rice. Crop production of common bean (Phaseolus vulgaris L.), the most important legume for human consumption, is often limited by low P in the soil. Despite its agr...

Bean seed weight and shape are important traits of different market bean classes. One of the first associations found between a genetic marker and a quantitative trait was reported by Sax ( 1923) for the relationship between seed pigmentation {P gene) and seed weight in common bean. More recently three types of molecular markers have been used to study the genetics of seed weight in common bean...

Aluminum (Al) toxicity is widespread in acidic soils where the common bean (Phaseolus vulgaris), the most important legume for human consumption, is produced and it is a limiting factor for crop production and symbiotic nitrogen fixation. We characterized the nodule responses of common bean plants inoculated with Rhizobioum tropici CIAT899 and the root responses of nitrate-fertilized plants exp...

Common bean (Phaseolus vulgaris L.) is an important legume, useful for its high protein and dietary fiber. The fungal pathogen Uromyces appendiculatus (Pers.) Unger can cause major loss in susceptible varieties of the common bean. The Ur-3 locus provides race specific resistance to virulent strains or races of the bean rust pathogen along with Crg, (Complements resistance gene), which is requir...

The Colletotrichum genus presents large genetic variability, as demonstrated by the occurrence of several pathogenic races and phenotypic traits. The objective of this study was to characterize 22 strains of C. lindemuthianum and Colletotrichum spp recovered from anthracnose lesions and bean scab, and to verify the relationship between species of the Colletotrichum genus, which inhabit anthracn...

The host suitability of diverse races and gene pools of common bean (Phaseolus vulgaris) for multiple isolates of Heterodera glycines was studied. Twenty P. vulgaris genotypes, representing three of the six races within the two major germplasm pools, were tested in greenhouse experiments to determine their host suitability to five H. glycines isolates. Phaseolus vulgaris genotypes differed in t...

The most effective control of Bean common mosaic virus (BCMV) and necrosis (BCMNV) is achieved by using the seeds resistant cultivars. During conventional breeding, resistance against BCMV BCMNV in bean can be developed pyramiding strain-nonspecific dominant I gene with strain-specific recessive (bc-) genes for long-term control. In this study, a total 58 genotypes involving registered green dr...