Micro-propagation of Brazilian forest species

Abstract

Micro-propagation has potential to apply to multiply genotypes of Brazilian forest species. The studies on in vitro culture of these species are related to their recalcitrance to other propagation techniques as well as in vitro conservation of plant germplasm. Micro-propagation by axillaries buds proliferation corresponds to the main system used for in vitro propagation, due to its simplicity compared to organogenesis and somatic embryogenesis. Nevertheless, the native forest species are poorly studied and consequently the advances in in vitro propagation protocols are still not expressive. Thus, it is necessary to develop new works to promote advances in in vitro culture of native species, and the use of new culture media compositions. It is also important to test the interaction of growth regulators or even bioreactor systems, aiming at to consolidate the micro-propagation technique as applicable strategy in Brazilian silviculture.