ROS in the Legume-Rhizobium Symbiosis
Plants appear to generate reactive oxygen species (ROS) as signaling molecules to control various fundamental processes. With this background, this review aims to highlight the involvement of ROS, and their possible interactions with nitric oxide (NO) and glutathione (GSH) in the symbiosis between rhizobia and leguminous plants. This compatible interaction, which is very important for sustainable agriculture, leads to the formation of a novel organ capable of fixing atmospheric nitrogen. ROS are involved in the early steps of the symbiotic interaction: their presence is essential for the development of optimal symbiosis and points to a signaling role for ROS during the symbiotic process. ROS may also regulate nodule function by interacting with NO.
KeywordsReactive Oxygen Species Nitric Oxide Nodule Formation Symbiotic Interaction Infection Thread
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