[In vivo and in vitro study of the effect of pregnant female serum graft rejection in Salamandra salamandra Lin]. / Etude in vivo et in vitro de l'activité du sérum de femelle gestante sur la réaction de rejet de greffe chez Salamandra salamandra Lin.

Serum from pregnant female Salamandra salamandra inhibits the cytotoxic reaction from the mother towards its larvae. Such a serum accelerates the allograft rejection reaction. In vitro studies show that a serum from pregnant female inhibits the cytotoxic reaction of host spleen cells towards epithelial cells of the donor of the graft.

[In vitro comparison of antigraft protection mechanisms in 2 genera of lumbricians: Eisenia and Lumbricus]. / Etude comparée in vitro des réactions de défense antigreffe chez 2 genres de Lombriciens, Eisenia et Lumbricus.

We sum up our in vitro experiments on allograft reactions in 2 genera of Lumbricians: Eisenia and Lumbricus. In Eisenia, first this reaction is a non-specific humoral one, then it becomes a specific cellular reaction. In Lumbricus the allograft reaction is a specific, mostly cellular one. Nevertheless it interferes with an acquired, specific humoral reaction.

[Body wall allograft reaction between 2 populations of worms (Lumbricus terrestris) from the same biotope origin but one of which lives in a different biotope]. / Réactions aux allogreffes de paroi du coprs, chez Lumbricus terrestris, entre deux populations de Vers de même biotope d'origine, mais dont l'une vit dans un biotope différent

Allografts which are practised between Lumbricus from the same biotope take ad libitum. Allografts are practised between two populations of earthworms from the same source one of which has lived in a new biotope for 12 years. Such allografts are attacked but never resorbed by the host.