The aim of this research was to obtain the optimum gas compositions of controlled atmosphere (CA) for Chinese flowering cabbage stored at 10°C and to clarify the molecular mechanism of senescence during storage under two selected CA conditions. Two CA experiments were conducted. The first one was on low O₂ (5% and 10%) and high CO₂ (5% and 10%) combinations, and the second one was on air O₂ (20.4%) and high CO₂ (5%, 10%, 15%, 30%, and 45%) combinations. It was shown that CA2 (5% O₂ + 10% CO₂) achieved the best beneficial effects on cabbage quality among all the treatments. CA2 and CA7 (20.4% O₂ + 15% CO₂), significantly decreased the activities of Chlase and MDCase, and down‐regulated the transcript abundances of the BrChlase, BrPAO, BrRCCR, and BrSAG12.

中文翻译：

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大气气体组成对大白菜品质保持和选择性基因表达的影响

这项研究的目的是获得在10°C下储存的大白菜的最佳受控气氛（CA）气体组成，并阐明在两种选定的CA条件下储存过程中衰老的分子机制。进行了两次CA实验。第一个使用低O ₂（5％和10％）和高CO ₂（5％和10％）组合，第二个使用空气O ₂（20.4％）和高CO ₂（5％，10） ％，15％，30％和45％）组合。结果表明，在所有处理中，CA2（5％O ₂  + 10％CO ₂）对白菜品质具有最佳的有益效果。CA2和CA7（20.4％O ₂  + 15％CO ₂），显着降低了Chlase和MDCase的活性，并下调了BrChlase，BrPAO，BrRCCR和BrSAG12的转录本丰度。