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.
The main function of meristematic tissue is mitosis. The cells are small, thin-walled, with no central vacuole and no specialized features. Meristematic tissue is located in. 1  the apical meristems at the growing points of roots and stems.2  the secondary meristems (lateral buds) at the nodes of stems (where branching occurs) [ View ], and in some plants, 3  meristematic tissue, called the cambium, that is found within mature stems and roots.eristematic tissue is located in. 1  the apical meristems at the growing points of roots and stems. 2  the secondary meristems (lateral buds) at the nodes of stems (where branching occurs) [ View ], and in some plants,