Question

The pollen grains can be stored in a viable condition for many years in the following conditions.

• A. Anaerobic conditions in $0^{o}C$
• B. Liquid nitrogen $(-{196}^{o}C)$
• C. Liquid nitrogen $\left(0^{o}C\right)$
• D. Liquid hydrogen $(-{196}^{o}C)$

Answer 1

The correct option is B Liquid nitrogen $(-{196}^{o}C)$

Pollen grains can be store in a low temperature for a short time storage or in a sealed containers using dry silica. They can also be stored in -${80}^{0}C$ degrees for one year in subfreezing condition.

Pollen grains can be lyophilized at -${196}^{0}C$ degrees in liquid nitrogen for long term storage.