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Gene Review:

ndvB - beta-(1-3)-glucosyl transferase

Bradyrhizobium diazoefficiens USDA 110

Bhagwat, A.A. et al., Chen, R. et al., Bhagwat, A.A. et al.

Bhagwat, Mithöfer, Pfeffer, Kraus, Spickers, Hotchkiss, Ebel, Keister,

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Disease relevance of ndvB

The cyclic beta-(1-->3),beta-(1-->6)-D-glucan synthesis locus of Bradyrhizobium japonicum is composed of at least two genes, ndvB and ndvC [1].

High impact information on ndvB

The mutant strain was only slightly sensitive to hypoosmotic growth conditions compared with the ndvB mutant, but it was severely impaired in symbiotic interactions with soybean (Glycine max) [2].

Chemical compound and disease context of ndvB

Previously, we identified two genes in Bradyrhizobium japonicum (ndvB, ndvC) that are required for cyclic beta-(1 --> 3),(1 --> 6)-D-glucan synthesis and successful symbiotic interaction with soybean (Glycine max) [3].

Biological context of ndvB

Site-directed Tn5 mutagenesis of the DNA region upstream of ndvB resulted in identification of a new gene (ndvC) involved in beta-(1--> 3), beta-(1-->6)-glucan synthesis and in nodule development [2].

References

Further studies of the role of cyclic beta-glucans in symbiosis. An NdvC mutant of Bradyrhizobium japonicum synthesizes cyclodecakis-(1-->3)-beta-glucosyl. Bhagwat, A.A., Mithöfer, A., Pfeffer, P.E., Kraus, C., Spickers, N., Hotchkiss, A., Ebel, J., Keister, D.L. Plant Physiol. (1999) [Pubmed]
Beta-glucan synthesis in Bradyrhizobium japonicum: characterization of a new locus (ndvC) influencing beta-(1-->6) linkages. Bhagwat, A.A., Gross, K.C., Tully, R.E., Keister, D.L. J. Bacteriol. (1996) [Pubmed]
Characterization of ndvD, the third gene involved in the synthesis of cyclic beta-(1 --> 3),(1 --> 6)-D-glucans in Bradyrhizobium japonicum. Chen, R., Bhagwat, A.A., Yaklich, R., Keister, D.L. Can. J. Microbiol. (2002) [Pubmed]

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