GASTROESOPHAGEAL REFLUX DISEASE AND SLEEP QUALITY IN A CHINESE POPULATION



Saprophytic Intracellular Rhizobia in Alfalfa Nodules

In indeterminate alfalfa nodules, the establishment of the senescent zone IV, in which both symbionts undergo simultaneous degeneration, has been considered, until now, as the end point of the symbiotic interaction.However, we now describe an additional zone, zone V, proximal to the senescent zone IV and present in alfalfa nodules more than 6 weeks

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