Histodifferentiation and ultrastructure of nodular cultures from seeds of Mez var. (L.B. Smith) L.B. Smith and leaf explants of Leme & A. Costa (Bromeliaceae).

Micropropagation induction, multiplication and development of nodular cultures (NCs) is an efficient regeneration system for Bromeliaceae, a family of endangered monocot plants with ornamental value. Therefore, the present work aimed to induce NCs from seeds and leaf explants of in order to characterize the morphological and histochemical aspects of induction and formation of these cultures. Seeds of var.

Ultra-low temperature conservation of Brazilian pine embryogenic cultures.

This study aimed to establish a cryopreservation protocol for embryogenic cultures of A. angustifolia, enabling the ex situ conservation of the species. Embryogenic cultures were established from immature seeds and treated with variations of the cryoprotectant solutions SuDG, SoD and PVS2 prior to immersion in liquid nitrogen.

Strategies for the micropropagation of bromeliads.

Bromeliads are tropical plants that are native to the Americas with a wide distribution in the rain forests, deserts and coastal areas. They are mostly epiphytes and terrestrial, diverse and important from the ecological point of view, they are found in microhabitats in strong interactions with fauna. Most of the ecosystems where they naturally occur are now endangered.