Reproductive biology and ex situ conservation of M. coriacea and M. phanerophlebia
Magnolia coriacea and M. phanerophlebia have been evaluated as the globally critical endangered species in the recently published “The Red List of Magnoliaceae”. Currently, both species are individually scattered in the evergreen forests outside the nature reserve in southeast Yunnan, and also their nature regenerations are extremely poor. Magnolia coriacea blooms well, but it rarely bear the fruits in the wild. At present, only 5 individuals of M. coriacea have been Ex-situ conserved at WFB and 2 individuals of M. phanerophlebia have been recently conserved at KBG. It’s certain that researches and the conservation actions for both above species are urgently needed to meet GSPC target 7 and target 8. This project is focusing on: 1) to carry out a comprehensively study on the whole phases of the sexual reproduction of M. coriacea:including mecrosporogenesis and megaspporogensis, development of the male and female gametophytes, nature / hand pollinating, insemination and embryo development, seed /fruit development and seed germination characters etc.; 2) to explore the vegetative propagation techniques of cuttings and in-vito micro-propagation from the scientifically sampled individuals of M.coriacea and M. phanerophlebia in the wild; 3) to re-enforce the natural populations of using the artificially propagated saplings; and 4) to raise plant conservation awareness of the local communities.
This project may achieve a number of the scientific data to direct the fruiting improvement of M. coriacea. At least 400 plants from the sampled individuals of both species will be vegetatively propagated and Ex-Situ conserved. Meanwhile, some 200 saplings (both from seeds and the vegetative organs) each species, which are of known the provenance and genetic basis, will be re-enforced in their natural habitats.
Partner: Kumning Institute of Botany, CAS