仙人掌科的几个分类群由于出于商业目的而被过度收集而受到威胁,并且该家庭的大部分被纳入《濒危动植物物种国际贸易公约》(CITES)。微繁殖可能在保持野生种群压力并促进濒危类群的异地保护方面发挥关键作用。微繁殖的限制之一是每个分类单元,有时甚至是不同基因型的植物调节剂的物种特异性要求。通过微嫁接技术,砧木直接为接穗提供必要的激素要求。在本文中,我们介绍了aselliformisEhrenberg的体外移植数据,附录ICITES列出了园艺贸易中极度濒危和追捧的物种,关于微繁殖的仙人掌-印度米勒。用无花果假单胞菌的根尖和根尖接穗进行微移植,成功率分别为97%和81%。离体转移后的存活率为85%。我们假设这种方法可以应用于其他濒危物种,仙人掌科的类群生长缓慢,从而有助于保护这个濒临灭绝的家庭。
Several taxa of Cactaceae are endangered by overcollection for commercial purposes, and most of the family is included in the Convention on International Trade in Endangered Species of Fauna and Flora (CITES).
Micropropagation may play a key role to keep the pressure off wild populations and contribute to ex situ conservation of endangered taxa. One of the limits of
micropropagation is the species-specific requirement of plant regulators for each taxon and sometimes even for different genotypes. With the micrografting technique the rootstock directly provides the scion with the necessary hormonal requirements. In this paper we present data on in vitro grafting of Pelecyphora aselliformis Ehrenberg, an Appendix I CITES listed species critically endangered and sought after by the horticultural trade, on micropropagated Opuntia ficus-indica Miller. Apical and sub-apical scions of P. aselliformis were used to perform micrografting with a successful rate of 97 and 81 % respectively. Survival rate after ex vivo transfer was 85 %. We hypothesize that this method could be applied to other endangered, slow growing taxa of Cactaceae thus contributing to the conservation of this endangered family.