Summary
- Sealed tissue-culture bags eliminate the contamination threats posed by air pressure changes or movement of the growth medium into the caps that can be a problem with tubes or jars.
- Firm medium (7-8 g?L-1 agar), careful folding, and packing of the bags in crushproof boxes with adequate packing materials minimize the shifting of plants and medium in transit.
- Cultures remain viable for a month or more at room temperature when properly packed and shipped, and usually result in healthy cultures even after lengthy transit or customs delays.