Symbiotic nitrogen fixation by the collaboration between leguminous plants and rhizobia is an important system in the global nitrogen cycle. and some molecular aspects during the early stage of host-symbiont recognition have been revealed. To understand the responses of a host plant against various bacteria. we examined expression of hemoglobin (Hb) genes and production of nitric oxid... https://thebrickes.shop/product-category/baby-toys/