Organization, structure and symbiotic function of rhizobium meliloti nodulation genes determining host specificity for alfalfa
作者： Beatrix Horvath , Eva Kondorosi , Michael John , Jürgen Schmidt , Istvan Török
DOI: 10.1016/0092-8674(86)90654-9
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摘要: Abstract In R. meliloti we have identified four nodulation genes determining plant host-range specificity and designated them hsn ABC D. The code for 9.7, 41.7, 26.7, 28.6 kd proteins, respectively, are organized into two transcriptional units. Mutations in these affect of their natural hosts Medicago sativa Melilotus albus to different extents D mutants an altered host-range. These Nod − mutations not complementable by other Rhizobium species such as leguminosarum. determine plant-specific infection through root hairs: is required host-specific hair curling nodule initiation while the control thread growth from hairs.
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