The invention discloses an
in vitro conservation method of a color
calla idioplasm resource, pertaining to the vegetable idioplasm
resource conservation and tissue cultivation technical field. The method comprises such steps as preparation of a culture medium, disinfection of an explant and
inoculation and induction culture, multiplication culture, root culture, a
corm intumescence culture, idioplasm conservation culture, restore culture, and the detection and utilization of
genetic stability, etc. The method adopts the
meristem tissue of a 0.5mm stem tip of the color
calla as the explant, a large quantity of elements in the culture medium are reduced and
mannitol and
penicillin are added, and a protocorm
seedling is conserved at 10 to 15 DEG C under the surroundings of
light intensity of 1000Lx for 10h / d, and after 15 months, the
contamination of
Erwinia is eliminated, the
survival rate reaches 100 percent; the growth and multiplication are still normal without
genetic variation. The method of the invention is characterized by low cost and simple operation etc., and can be popularized and applied in the idioplasm conservation field of the color
calla.