Symbiotic nitrogen fixation: developmental genetics of nodule formation.

Biological nitrogen fixation: recent advances and future prospects.

The ARD1 gene of yeast functions in the switch between the mitotic cell cycle and alternative developmental pathways.

Differential expression of the ribulose bisphosphate carboxylase large subunit gene in bundle sheath and mesophyll cells of developing maize leaves is influenced by light.

Improved management of the perineal wound after proctectomy.

Conservation of nodulation genes between Rhizobium meliloti and a slow-growing Rhizobium strain that nodulates a nonlegume host.

Nitrogen fixation specific regulatory genes of Klebsiella pneumoniae and Rhizobium meliloti share homology with the general nitrogen regulatory gene ntrC of K. pneumoniae.

Minimal size plasmids containing an M13 origin for production of single-strand transducing particles.

Nodule-specific polypeptides from effective alfalfa root nodules and from ineffective nodules lacking nitrogenase.

Fungal recombination.

Specific Saccharomyces cerevisiae genes are expressed in response to DNA-damaging agents.

Transfer of yeast telomeres to linear plasmids by recombination.

Decreased cell kill of vincristine and methotrexate against 9L rat brain tumor cells in vitro caused by alpha-difluoromethylornithine-induced polyamine depletion.

DNA sequences of telomeres maintained in yeast.

Rhizobium meliloti nodulation genes allow Agrobacterium tumefaciens and Escherichia coli to form pseudonodules on alfalfa.

Regulation of nitrogen fixation genes.

A Rhizobium meliloti symbiotic regulatory gene.

Physical and genetic characterization of Rhizobium meliloti symbiotic mutants.

A comparison of postmigration and migration-coupled mismatch correction mechanisms for branch migration-mediated gene conversion.

Potentiation of 1,3-bis(2-chloroethyl)-1-nitrosourea cytotoxicity in 9L rat brain tumor cells by methylglyoxal-bis(guanylhydrazone), an inhibitor of S-adenosyl-L-methionine decarboxylase.

Construction of a correlated physical and genetic map of the Klebsiella pneumoniae hisDGO region using transposon Tn5 mutagenesis.

Mutations affecting regulation of the Klebsiella pneumoniae nifH (nitrogenase reductase) promotor.

Plasmid vectors for the rapid isolation and transcriptional analysis of human beta-globin gene alleles.

Molecular characterization of Tn5-induced symbiotic (Fix-) mutants of Rhizobium meliloti.

Yeast vectors with negative selection.