Growth and nitrogen fixation activity of soybeans in the presence of bean pod mottle virus

• Published in: Journal of phytopathology Vol. 118; no. 3; pp. 193 - 202
• Main Authors: Orellana, R.G. (Agricultural Research Service, Beltsville, Md. (USA)), Reynolds, S.L, Berkum, P. van
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.03.1987; Blackwell
• Subjects: Agronomy. Soil science and plant productions; Bacteria; Biological and medical sciences; Economic plant physiology; Entwicklung; Fundamental and applied biological sciences. Psychology; Generalities; Genetics and breeding of economic plants; GLYCINE MAX; Komplex; Pathology. Damages, economic importance; Pest resistance; Phytopathology. Animal pests. Plant and forest protection; Plant viruses and viroids; RHIZOBIUM; Rhizobium japonicum; Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...); USA; Varietal selection. Specialized plant breeding, plant breeding aims; Virus; VIRUS DE LAS PLANTAS; VIRUS DES VEGETAUX; Symbiosis; Microorganism interrelationships; Symbionte; Genetic variability; Pathophysiology; Growth; Host agent relation; Rhizobium japonicum; Plant nodule; Phytopathogen; Glycine max; Oil plant(vegetal); Infection; Bean pod mottle virus; Leguminosae; Dicotyledones; Viral disease; Angiospermae; Nitrogen fixation; Bacteria; Spermatophyta; Rhizobiaceae; Cultivar
• ISSN: 0931-1785; 1439-0434
• DOI: 10.1111/j.1439-0434.1987.tb00448.x

Pathological and physiological response associated with the host-microsymbiont interaction of soybeans (Glycine max 'Franklin', 'Dyer', 'Centennial', 'Marshall', 'Williams', 'Bedford', and 'Peking'), which were nodulated with Rhizobium japonicum (USDA strain 3I1b-110) and inoculated with bean pod mottle virus (BPMV) in the greenhouse, varied with the cultivar and the substrate in which the plants were grown. In plants grown in a soil mixture, the virus significantly reduced canopy growth, nodulation, total N, and ureide-N content of most cultivars but symbiotic N2 fixation was significantly reduced only for 'Centennial' and 'Peking'. In vermiculite, in which the plants depended almost exclusively on symbiotically fixed N2 the virus reduced canopy and nodule mass of some cultivars but these reductions were significant only for 'Franklin'. In plants grown in this substrate, however, the virus had little effect as increases or decreases in measured components of symbiotic N metabolism were nonsignificant except for the increase in leaf ureides in 'Marshall'. Results suggest that in either soil or vermiculite the symbiotic process in certain soybean cultivars can function at nearly a normal level despite root nodule infection with this virus