Somatic embryogenesis (SE) is a useful biotechnological tool to promote the conservation of plant genetic resources. Araucaria angustifolia, Acca sellowiana, and Bactris gasipaes are forest species with recognized ecological, cultural, and economic importance in the subtropical Atlantic Forest and the tropical Amazon Forest. SE protocols have been studied for these three species for more than 30 years. Despite the advances obtained during this time, some drawbacks remain. Here we reviewed and discussed the advancements and continuing constraints in the SE of these species, pointing out the more successful procedures. Further, we highlight several of the most pressing issues remaining in the SE protocols for each species. Further development of these protocols will aid in the conservation of these three species.

体细胞胚发生（SE）是促进植物遗传资源保护的有用的生物技术工具。南洋杉，Acca sellowiana和Bactris gasipaes是在亚热带大西洋森林和热带亚马逊森林中具有公认的生态，文化和经济重要性的森林物种。对这三个物种的SE方案进行了30多年的研究。尽管在这段时间取得了进步，但仍然存在一些缺陷。在这里，我们回顾并讨论了这些物种SE的进展和持续的限制，指出了更成功的程序。此外，我们重点介绍了每个物种SE协议中仍然存在的一些最紧迫的问题。这些协议的进一步发展将有助于保护这三个物种。