Controlled atmosphere and heat shock affect PAL1 and HSP90 mRNA accumulation in fresh-cut endive (Cichorium intybus L.)

Stored fresh-cut endive gradually turns red, since tissue wounding induces de novo synthesis of phenylalanine ammonia-lyase (PAL), which activates the phenylpropanoid pathway. Once the pool of phenolic substrates is increased, polyphenols are oxidized and cause discoloration. Modified atmosphere pac...

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