Samstag, 11. März 2017

Establishing an in vitro culturing system




Hi there
This Blog-Entry serves to answer several questions regarding in-vitro culturing techniques based on the scientific paper: Micropropagation of a difficult-to-root weeping mulberry (Morus alba var. Shidareguwa): A popular variety for ornamental purposes (Aroonpong, 2015).

-       Whenever plants are requested for agricultural or pharmaceutical means, its cultivation is of economic importance. To improve the belonging work steps and even the result, detailed knowledge is necessary. The aim of the Mulberry-Study is to receive plants with higher rooting ability after propagation.
-       To carry out a successful shoot induction, healthy, 3-year-old plants from the field are required. After shoot multiplication on media, the root induction comes at a different media with 1-month-old regenerated shoots (tips and nodes).
-       The results concerning the success of different explant types are shown in Figure 2. It’s evident that shoot tips have the highest survival rate and are much less affected of endo- and exophytic contamination. In addition, there were no browning to proof after 5 days of culture in this study.
-       The duration of the different acclimation stages is of great importance. In vitro plants require more time generally than ex vitro, to receive a survival rate from 90 – 100 %. Crucial factors are at one hand the room air with its specific gas composition and at the other hand the relentlessness of direct sun light.

Another interesting method to enhance the root ability of plants or var. Shidareguwa in special is to breed instead of in vitro cultivation. By taking a strong rooting variety as breeding partner the new born shoots will show aspects of both parental plants (weeping character and strong rooting).
Read more: Inheritance of a weeping character and the low frequency of rooting from cuttings of the mulberry variety ‘Shidareguwa’ (H. Yamanouchi, 2009)
bye