Can a nitrogen-fixing organelle be engineered within plants?

Given that crop yields are strongly limited by nitrogen, engineering crop plants with self-nitrogen-fertilization capacity holds great promise for sustainable agriculture. Recently, a nitrogen-fixing organelle has been characterized in the unicellular marine microalgae Braarudosphaera bigelowii. Engineering a nitrogen-fixing organelle into the non-nitrogen-fixing crops could benefit both environmental sustainability and global food security.