Mandela, the former president of the Republic of South Africa and Nobel Peace laureate, spent more than 40 yearsâ27 of them in prisonâas a central figure in the struggle against South Africaâs brutal and restrictive racial regime called apartheid.
meristem culture. (shoot-tip culture) The culture of excised meristems on suitable nutrient media under aseptic conditions. The stem apex is usually used though axillary meristems may also be taken.Often gibberellic acid must be added to the medium to promote normal growth into a plantlet.shoot-tip culture) The culture of excised meristems on suitable nutrient media under aseptic conditions. The stem apex is usually used though axillary meristems may also be taken. Often gibberellic acid must be added to the medium to promote normal growth into a plantlet.
Meristem culture was reported to free plants of viroid infection (Hosokawa, 2008). The process of meristem culture does not always free the plants from viruses; therefore, claims of virus-free plants must be confirmed.lants can be placed in a growth chamber or placed in hot water to administer the heat treatment. Heat will inactivate the virus (Matthews, 1991). The combination of heat and meristem culture of lilies is also described by Nesi et al. (2011) to free bulbs of two viruses.