In the field of plant cryopreservation, vitrification has developed into a pioneering technique for the protection of plant genetic resources. Vitrification transforms plant tissue into a glass-like state that prevents the formation of ice crystals during freezing, making it ideal for the preservation of sensitive genetic material at extremely low temperatures.
The concept of vitrification is not new - it has long been used successfully in the cryopreservation of plants and offers an alternative to conventional freezing methods, where the recovery rate of plants is sometimes lower. By rapidly cooling the plant tissue using cryoprotectants, vitrification prevents the formation of harmful ice crystals inside the cells so that the tissue can be stored at -196 °C without losing its viability.
Recent advances in vitrification-based techniques have further raised the bar for plant cryopreservation. Methods such as encapsulation vitrification, droplet vitrification and even the newer D- or V-cryoplate techniques have emerged, all aimed at further improving plant regeneration rates, adapting them to a wider variety of plant species and simplifying the process. These methods help researchers to cryopreserve even those plant species that were previously considered too difficult for conventional cryogenic methods.
For example, an impressive regrowth rate of 93% was achieved for the plant Stevia rebaudiana using the V-cryoplate method, which is significantly higher than previous methods such as standard vitrification, which achieved a success rate of 68%. Such improvements are proof of how continuous research and optimization of cryopreservation techniques can lead to better conservation outcomes for our plant biodiversity. Regrowth rates, adapt to a wider variety of plant species and simplify the process. These methods help researchers to cryopreserve even those plant species that were previously considered too difficult for conventional cryogenic methods.
Cryopreservation holds immense potential, not only for safeguarding food crops, but also for preserving genetic diversity, which is essential for future plant breeding and biodiversity conservation. The versatility of vitrification also extends to different plant structures - be it shoot tips, dormant buds or embryonic axes. For each of these, there are specific cryopreservation protocols that need to be perfected to maintain viability, and this is where modern advances are making a real difference.
At Consarctic, we are proud to support these breakthroughs by providing state-of-the-art cryogenic solutions to researchers and cryobanks worldwide. Our technology is focused on the constant cooling, controlled storage and ultimately the successful long-term preservation of plants and other biological materials.