Orellana R G, Fan F F
Appl Environ Microbiol. 1978 Dec;36(6):814-8. doi: 10.1128/aem.36.6.814-818.1978.
Infection of root nodules of beans, Phaseolus vulgaris L., by bean yellow mosaic virus (BYMV) and the effect of the disease on the specific activity of the nodule are reported. Infectivity and serological microprecipitin assays with two sources of BYMV antiserum demonstrated that nodules from bean plants whose leaves had been inoculated with BYMV contain BYMV antigen. The disease reduced the fresh weights of tops, roots, and root nodules and induced premature nodule decay and/or nodule drop. The disease also reduced leghemoglobin content, on a plant weight basis, and N2 fixation rate, on an individual plant basis, as measured by the acetylene reduction assay. The increased leghemoglobin content per gram-nodule in BYMV-infected nodules relative to healthy nodules might be associated with multiplication of the virus in the nodule and/or unknown cellular effects derived from the BYMV-Rhizobium interaction.
报道了菜豆黄花叶病毒（BYMV）对菜豆（Phaseolus vulgaris L.）根瘤的侵染以及该病害对根瘤比活性的影响。用两种BYMV抗血清来源进行的感染性和血清学微量沉淀试验表明，叶片接种过BYMV的菜豆植株的根瘤含有BYMV抗原。该病害降低了地上部、根部和根瘤的鲜重，并导致根瘤过早腐烂和/或脱落。通过乙炔还原法测定，该病害还降低了以植株重量为基础的豆血红蛋白含量和以单株为基础的固氮率。相对于健康根瘤，BYMV感染的根瘤中每克根瘤豆血红蛋白含量的增加可能与病毒在根瘤中的增殖和/或BYMV - 根瘤菌相互作用产生的未知细胞效应有关。
