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Phenotypic and genotypic methods were used to prove the existence of Frankia strains isolated from an Elaeagnus sp. that are able to cross the inoculation barriers and infect Alnus spp. also. Repeated cycles of inoculation, nodulation, and reisolation were performed under axenic conditions. Frankia wild-type strain UFI 13270257 and three of its coisolates(More)
Specific, tight-binding protein partners are valuable helpers to facilitate membrane protein (MP) crystallization, because they can i) stabilize the protein, ii) reduce its conformational heterogeneity, and iii) increase the polar surface from which well-ordered crystals can grow. The design and production of a new family of synthetic scaffolds (dubbed(More)
Among the Frankia strains capable of establishing a nitrogen-fixing symbiosis with actinorrhizal plants, in planta sporangial formation is not universal and has led to the distinction between spore-positive (Sp+) and spore-negative (Sp-) nodules. Numerous Frankia strains have been isolated in pure culture from Sp+ nodules of different host plants, but,(More)
Twelve single-spore isolates of the flexible Elaeagnus-Frankia strain UFI 132715 fulfilled the third and the fourth of Koch's postulates on both Alnus and Elaeagnus axenic plants. Seminested nifD-nifK PCR-restriction fragment length polymorphisms provided evidence for the genetic uniformity of the single-spore frankiae with the mother strain and its plant(More)
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