Anatomia do sistema subterrâneo de plantas jovens do Angico vermelho, Anadenanthera peregrina var. falcata (fabaceae)

Abstract

Some studies point to the development of underground structures in tree species as a strategy to survive during long periods of drought. One of the main survival strategies in environments with fire regimes is the ability to regenerate from underground organs or the base of the stem since the above-ground buds are not yet protected by bark, as in mature trees. Through the anatomical study of leguminous tree species, we hope to recognize the strategies and structures involved in plant survival during fire events, particularly in the context of the regeneration capacity of young individuals, given that various types of underground systems are important for ecological studies. Some studies on Cerrado species have already shown that the xylarium has a mixed structure of both root and stem, and its buds are typically of axillary origin or originate from the proliferation of cortical parenchyma. Therefore, we hope to understand the morphoanatomical structures involved in the survival strategy of this species, focusing mainly on the underground structure that develops in the first year of growth, as well as the nature of the reserve substances of Anadenanthera peregrina var. falcata (Red Angico).