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Effects of propylene and oxygen on the ethylene‐producing system of apples
Author(s) -
Butler G.,
Bangerth F.
Publication year - 1983
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1983.tb05732.x
Subject(s) - ethylene , chemistry , malus , oxygen , horticulture , botany , food science , biochemistry , organic chemistry , biology , catalysis
Hypobaric conditions and treatments with ethylene and the ethylene analogue propylene were used to investigate effects of oxygen and elhylene on 1‐aminocyclopropane‐1‐carboxylic acid (ACC) content, ACC synthase activity and ethylene production of apples ( Malus sylveslris Mill. cv. Golden Delicious). Prcclimacteric apples were stored in air at 6.6 kPa (reduced pressure); 6.6 kPa ventilated with pure O 2 ; 6.6 kPa ventilated with 2600 μl 1 −1 C 2 H 4 ; and in air at 101.3 kPa (atmospheric pressure) for 4 months at 4°C. No ACC synthase activity was detectable in apples stored at 6.6 kPa, whereas ACC synthase activity was induced in apples stored at 6.6 kPa and ventilated with either O 2 or C 2 H 4 . In a further experiment, preclimacteric apples were stored for 14 days either in air at 20 kPa or at 20 kPa ventilated with pure O 2 . Both treatments were supplied with 58 500 μl 1 −1 propylene from day 0 to day 9 or from day 9 to day 12. Ethylene production of apples treated with propylene from day 0 to day 9 increased earlier than ethylene production of untreated apples. Propylene treatment from day 9 to day 12 did not stimulate ethylene production. Ethylene and propylene induced and stimulated extractable ACC synthase activity and ACC formation of apples. Oxygen enhanced this effect. The results also suggest inhibition of in vivo ACC synthase activity by propylene.