Genetics and Molecular Biology of Alternative Nitrogen Fixation Systems

• DOI: 10.1146/annurev.pp.41.060190.000545
• Publication Date: 2003-07-02T05:28:10Z
• Authors: Paul E. Bishop; Rolf D. Joerger
• Keywords: 0301 basic medicine; 03 medical and health sciences

INTRODUCTION 109 BRIEF OVERVIEW OF THE GENETICS OF MOLYBDENUM-CONTAINING NITROGENASES ..... . . . .. . . . . . 111 IDENTIFICATION AND ORGANIZATION OF GENES REQUIRED FOR MOLYBDENUM-INDEPENDENT NITROGENASES. . . . . ...... . . . . . .. . . . . ..... II3 nif Genes Shared by the Three Nitrogenase Systems in Azotobacter vinelandii...... 113 Genes Encoding Nitrogenase 2 . 115 Genes Encoding Nitrogenase 3 . ....... ......... . . ... ...... 116 Sequence Comparisons Between Structural Genes . . . . . . . . . . . . . . . . ... . . . . . . . . . . ... . . . . . . . . . 116 Nonstructural Genes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . ..... . . . 118 REGULATION OF EXPRESSION OF THE ALTERNATIVE Nz FIXATION SySTEMS 119 CONCLUDING REMARKS 120