Astiro bizi eta zahar hil: Ramonda myconi landarearen hostoen fisiologiaren garapen-aldaketak

Abstract

The resurrection plant Ramonda myconi, endemic to the Iberian Peninsula, has an extraordinary ability to survive desiccation and freezing. Despite its long lifespan, the specific duration of life of R. myconi leaves and their mechanisms to withstand desiccation multiple times throughout their life are uncertain. This study has shown that R. myconi maintains a low assimilation rate during the year, and as the leaves get older, the ability to cope with stress increases. As a result, senescent leaves are more tolerant to environmental stresses. Overall, the long lifespan of the leaves and the physiological differences in leaf age allow the plant to successfully grow in a hostile environment while being able to cope with both desiccation and freezing conditions.