The development of the organ transplantation technique has brought multitudinous ethical and legal problems,one of which is the protection of patients equal rights to medical treatment in the organ allocation process.

The biomass distribution rate of various organs is different with the stand age.

Observation of ultrastructural changes of dominating organs in abnormal savda syndrome animal model;

Morphological changes of dominating organs of abnormal savda syndrome animal model;

The influence of phytohormone on organogenesis of Hypericum perforatum L.;

The result showed that,Kt/NAA=20/3 had highest inducement of callus,6-BA/NAA=25/3,Kt/NAA=25/3,Kt/NAA=20/3 had highest organ differentiation,2,4-D connected with 6-BA,KT had not lead to organogenesis.

In the tissue culture and rapid propagation of the plant, the outside source hormone has very important function towards the organogenesis of the plantlets.

tomentosa] and Fuji apple (Malus pumila) were cultured in vitro on MS media containing various concentrations of BA, NAA or 2,4 D to induce organ differentiation, callus formation and plantlet regeneration.

The paper studied the effects of factors such as different organs,media,temperature,AgNO_3 and plant hormine on Brassica napas organ differentiation,The ideal condition for Brassiea re-generation was investigated.