Plantlets
After a year of culture in vitro, we obtain the transformation of shoots into plantlets, that have the dubbing of vegetative organs (leaves and roots).
The meristem of seedlings is scattered among several bodies, and through the open growth they can adapt to external changes and can therefore live outside of "in vitro" cultivation, such as in the nursery of the greenhouse.
However, in nature the period between two phases of development (seedlings and sprouts) takes three to eight years (see Figure 1). Time is also stunted from sowing seeds and the emergence of the shoots.
The numbers above the needles in Figure 1 show that in the conditions of culture, the transition from one stage of ontogeny to another takes less time than in the wild.
by Marpha TELEPOVA-TEXIER
Département des Jardins Botaniques et Zoologiques du Muséum national d’Histoire naturelle, USM 0602, case postale 39, 57 rue Cuvier, 75005 Paris; [email protected]
The meristem of seedlings is scattered among several bodies, and through the open growth they can adapt to external changes and can therefore live outside of "in vitro" cultivation, such as in the nursery of the greenhouse.
However, in nature the period between two phases of development (seedlings and sprouts) takes three to eight years (see Figure 1). Time is also stunted from sowing seeds and the emergence of the shoots.
The numbers above the needles in Figure 1 show that in the conditions of culture, the transition from one stage of ontogeny to another takes less time than in the wild.
by Marpha TELEPOVA-TEXIER
Département des Jardins Botaniques et Zoologiques du Muséum national d’Histoire naturelle, USM 0602, case postale 39, 57 rue Cuvier, 75005 Paris; [email protected]