The 17.7 kDa R2 module from Azotobacter vinelandii mannronan C5-epimerase AlgE6 has been isotopically labeled ((13)C,(15)N) and recombinantly expressed. Here we report the (1)H, (13)C, (15)N resonance assignment of AlgE6R2.

Transformation was used to perform ratio test crosses with mutant strains of Azotobacter vinelandii unable to fix N2. Mutations that simultaneously eliminated both components of nitrogenase (nif-1 and nif-2) were tightly linked. The nif-45 mutation that resulted in the absence of an active molybdenum cofactor was closer to nif-1 and nif-2 than to any of the other nif mutations. Strains that lac...

Micrographs of freeze-cleaved Azotobacter vinelandii cysts reveal that the surface is composed of several overlapping layers. This observation is consistent with the previously proposed structure of the outer cyst coat.

The present investigation the effect of different microbial culture on growth, yield and quality Sponge Gourd (Luffa cylindrica L.) was undertaken at Vegetable Research Farm, Department Horticulture, Naini Agricultural Institute, Sam Higginbottom University Agriculture, Technology & Sciences, Prayagraj (UP) during 2022. experiment laid out in a Randomized Block Design with 10 tratment viz.,...

Tomato (Lycpoersicum esculemtum) belongs to the Solanaceae potato family and is an important crop plant. It is relatively resistant to salinity, but in the saline environment growth and production of the plant significantly reduces. On the other hand, the presence of mycorrhiza fungus can improve the adverse effects of salinity. A factorial experiment in a completely randomized design with thre...

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