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ETHYLENE, L-AMINOCYCLOPROPANE-L-CARBOXYLIC ACID (ACC), SOLUBLE POLYURONIDE, AND CELL WALL NONCELLULOSIC NEUTRAL SUGAR CONTENT IN < ELDORADO > PEARS DURING COLD STORAGE AND RIPENING.

Author(s) : WANG C. Y., SAMS C. E., GROSS K. C.

Type of article: Article

Summary

THE CAPACITY OF < ELDORADO > PEARS TO RIPEN INCREASED DRAMATICALLY AFTER 4 WEEKS OF EXPOSURE TO 273 K (0 DEG C). ENDOGENOUS LEVELS OF ACC AND INTERNAL ETHYLENE WERE LOW AFTER HARVEST, BUT INCREASED RAPIDLY AFTER 4 WEEKS AT 273 K. EXPOSURE TO 273 K FOR 4 WEEKS RESULTED IN AN INCREASE IN SOLUBLE POLYURONIDE DURING SUBSEQUENT RIPENING AT 293 K (20 DEG C). AFTER 9 MONTHS AT 273 K, SOLUBLE POLYURONIDE CONTENT SHOWED LITTLE INCREASE WHEN PEARS WERE TRANSFERRED TO 293 K, AND FRUIT FAILED TO SOFTEN NORMALLY. THE FAILURE OF PEARS TO SOFTEN NORMALLY AT 293 K AFTER PROLONGED STORAGE AT 273 K IS NOT RELATED TO ETHYLENE SYNTHESIS OR TO CHANGES IN CELL WALL NONCELLULOSIC NEUTRAL SUGAR CONTENT, BUT IS PROBABLY ASSOCIATED WITH MECHANISMS OF POLYURONIDE SOLUBILIZATION.

Details

  • Original title: ETHYLENE, L-AMINOCYCLOPROPANE-L-CARBOXYLIC ACID (ACC), SOLUBLE POLYURONIDE, AND CELL WALL NONCELLULOSIC NEUTRAL SUGAR CONTENT IN < ELDORADO > PEARS DURING COLD STORAGE AND RIPENING.
  • Record ID : 1986-0646
  • Languages: English
  • Source: J. am. Soc. hortic. Sci. - vol. 110 - n. 5
  • Publication date: 1985/09
  • Document available for consultation in the library of the IIR headquarters only.

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