Wild accessions of crops and landraces are valuable genetic resources for plant breeding and for conserving alleles and gene combinations in planta. The primary genepool of cultivated common beans includes wild accessions of Phaseolus vulgaris. These are of the same species as the domesticates and therefore are easily crossable with cultivated accessions. Molecular marker assessment of wild bea...

Beans (Phaseolus vulgaris) are an important food staple in many traditional diets. There is limited evidence to suggest an inverse relationship between bean consumption and colon cancer. The objective of this study was to determine whether consumption of black beans and/or navy beans would reduce colon carcinogenesis in rats. Rats were fed a modified AIN-93G diet (control) or diets containing 7...

A comparative study in vitro was made of enzyme-inhibiting and hemagg1utinin activities, and the effect on rat growth of 5 varieties of kidney beans (Phaseolus vulgaris). Extracts of 2 bean samp1es were active in agg1utinatingrabbit b100d cells and toxic when .fed to growing rats. Diets prepared with these seeds supp1emented with methionine caused weight 10ss and death when fed to rats a10ne or...

Semi-domesticated plants are good resources for agroecology, because they can survive without human intervention and be managed together with non-domesticated plants. To explore the ecological know-how underlying farmer management of semi-domesticates at landscape level, we compared how Yanacona Indigenous People in southwestern Colombian Andes manage two semi-domesticated species Phaseolus bea...

The use of ultrasound to enhance the transport phenomena in food processes has been well recognised in recent times. The objective of this study was to evaluate the effect of sonication on hydration rate and pasting profile of navy beans. The hydration kinetics for control and ultrasound assisted soaking was mathematically described using mechanistic (Fickian diffusion) and empirical (Peleg's e...

The DNA content of bacteroids from 22 different Rhizobium-legume associations was compared to that of the corresponding free living Rhizobium species using laser flow microfluorometry. In all 18 effective associations, the bacteroids had either similar or higher DNA content than the free living rhizobia. Bacteroid populations isolated from effective clover (Trifolium repens) and alfalfa (Medica...

Effect of drought stress on the osmotic adjustment, cell wall elasticity and cell volume of six cultivars of common beans (Phaseolus vulgaris L.) J.P. Martı́nez a,∗, H. Silva b, J.F. Ledent c, M. Pinto b a University of Arturo Prat, Department of Desert Agriculture, Avda. Arturo Prat 2120, Casilla 121, Iquique, Chile b University of Chile, Faculty of Agronomic Sciences, Santa Rosa 11315, Santiag...