Marine biology, Bacteria, Water pollution, Oceans, Waste disposal
legume taxonomy, nodule morphology and structure, legume flowers, evolution of nodulation, rhizobial diversity, nitrogen fixation, ammonia factories, terminally differentiated bacteroids, Tissues, Photosynthesis, Ecosystems, Cells, Heavy metals, Bacteroids, Tropical regions, Agricultural production, Climatic changes, Arid environments, Biological diversity,...