The Positive Correlation between Polyphenols and Heat Tolerance in Lettuce under Heat Stress
Heat stress is one of major factors in threatening lettuce production.Polyphenols play an important role in response to heat stress in lettuce.The content of polyphenols and the heat damage index of 254 lettuce resources were identified under heat stress.The results showed that the content of polyphenols in the wild type lettuce was the highest,and crisphead was the lowest.Heat damage index of the stem type was the highest,followed by the crisphead and Youmai type,and the wild type lettuce was the lowest.Correlation analysis showed that the content of polyphenols was negatively correlated with heat damage index in lettuce.The expression of MYB75 and MYB114 genes were identified in part of the lettuce materials.The expression of MYB gene may be correlated with heat damage index and polyphenol content.
NETL
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万方数据
