Other numbers: ATCC 35121, DSM 2789, J. Döbereiner strain Am 30, strain Y6. History: < J. Döbereiner. Isolated from: Roots (Pennisetum purpureum cv. cameron); Brazil, Seropédica-RJ. Additional information: Taxonomy (7510,7511). Nitrogen fixation. Cultivation conditions: Medium 74, 30°C.