1 Table of Contents: “... Plants -- Poster Papers (First Author Only) -- Plant Genes Involved in Dinitrogen Fixation...”

2 Table of Contents: “... Nitrogen Fixation -- A. Nodulation (nod) Genes -- Poster Summaries: -- B. Organization and Regulation...”

3 Table of Contents: “... -- Rearrangement of nif operons in cyanobacterial heterocysts -- Gene amplification in Rhizobium -- Molecular...”

4 “.... These include catalytic mechanisms, protein structure and function, molecular organization of genes...”

5 Table of Contents: “... and Plant Genomes -- Plant genes involved in symbiosis -- Metabolism in symbiosomes -- Associative...”

6 “... in the nucleotide sequences and how they are now being used to produce gene-function data from differential gene...”