Transfer of Nitrogen Fixation (nif) Genes to Non‐diazotrophic Hosts

Nitrogen is one of the most important nutrients for plant growth. To enhance crop productivity, chemical nitrogen fertilizer is commonly applied in agriculture. Biological nitrogen fixation, the conversion of atmospheric N 2 to NH 3 , is an important source of nitrogen input in agriculture and represents a promising substitute for chemical nitrogen fertilizers. However, nitrogen fixation is only sporadically distributed within bacteria and...