MECHANICAL STRESS, STORAGE TIME, AND TEMPERATURE INFLUENCE CELL WALL-DEGRADING ENZYMES, FIRMNESS, AND ETHYLENE PRODUCTION BY CUCUMBERS.

Author(s) : MILLER A. R., DALMASSO J. P., KRETCHMAN D. W.

Type of article: Article

Summary

CUCUMBER SUBJECTED TO MECHANICAL STRESS FOLLOWED BY STORAGE FOR 48 HR EXHIBITED VISIBLE DEGENERATION OF THE MESOCARP AND ENDOCARP. THE ENZYMIC ACTIVITY INCREASED IN THE ENDOCARP, WHEREAS ONLY PECTIN METHYLESTERASE AND POLYGALACTURONASE INCREASED IN THE MESOCARP, AND PECTIN METHYLESTERASE, PEROXIDASE, AND POLYGALACTURONASE INCREASED IN THE EXOCARP. THE INCREASE IN THE ACTIVITY OF PECTIN METHYLESTERASE, PEROXIDASE, AND POLYGALACTURONASE WAS LESS WHEN CUCUMBERS WERE STORED AT 273 OR 283 K VS 298 OR 311 K (0 OR 10 DEG C VS 25 OR 38 DEG C) AFTER MECHANICAL STRESS. ETHYLENE PRODUCTION WAS STIMULATED SIGNIFICANTLY BY 8-HR STORAGE AT 273 K, FOLLOWING MECHANICAL STRESS, AND BY 48-HR STORAGE AT 273 K, BUT WAS UNAFFECTED BY ALL OTHER TREATMENT AND STORAGE REGIMES.

Details

  • Original title: MECHANICAL STRESS, STORAGE TIME, AND TEMPERATURE INFLUENCE CELL WALL-DEGRADING ENZYMES, FIRMNESS, AND ETHYLENE PRODUCTION BY CUCUMBERS.
  • Record ID : 1988-0165
  • Languages: English
  • Source: J. am. Soc. hortic. Sci. - vol. 112 - n. 4
  • Publication date: 1987/07
  • Document available for consultation in the library of the IIR headquarters only.

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