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Literature summary extracted from

  • Yangkhamman, P.; Tanase, K.; Ichimura, K.; Fukai, S.
    Depression of enzyme activities and gene expression of ACC synthase and ACC oxidase in cut carnation flowers under high-temperature conditions (2007), Plant Growth Regul., 53, 155-162.
No PubMed abstract available

Application

EC Number Application Comment Organism
4.4.1.14 agriculture ethylene production in cut carnation flowers cv. Excerea is suppressed by high-temperatures because of inhibition of ACC synthase, no ethylene production detected in flowers kept at 32°C, climacteric ethylene production observed during days 9-12 in flowers kept at 24°C Dianthus caryophyllus

Cloned(Commentary)

EC Number Cloned (Comment) Organism
1.14.17.4 gene ACO-1, expression analysis in gynoecia and petals from three carnation flowers Dianthus caryophyllus

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.14.17.4 additional information the enzyme is partially suppressed in petals and completely in gynoecia at 32°C, but expressed at 34°C, the ACO expression rate decreases gradually after cutting, overview Dianthus caryophyllus

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.14.17.4 1-aminocyclopropane-1-carboxylate + ascorbate + O2 Dianthus caryophyllus
-
 ethylene + cyanide + dehydroascorbate + CO2 + H2O
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
1.14.17.4 Dianthus caryophyllus
-
 gene ACO-1, climacteric plant
-
4.4.1.14 Dianthus caryophyllus
-
 Excerea
-

Purification (Commentary)

EC Number Purification (Comment) Organism
4.4.1.14 by centrifugation and Sephadex G-25 column chromatography Dianthus caryophyllus

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.14.17.4 flower
-
 Dianthus caryophyllus
-
1.14.17.4 gynoecium ACO-1 expression analysis in cut flowers, activity during climateric development, overview Dianthus caryophyllus
-
1.14.17.4 additional information comparison of enzyme expression and activity in fresh and cut, vase-lived flowers, the ACO expression rate decreases gradually after cutting, overview Dianthus caryophyllus
-
1.14.17.4 petal ACO-1 expression analysis in cut flowers, activity during climateric development, overview Dianthus caryophyllus
-
4.4.1.14 flower petal Dianthus caryophyllus
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.17.4 1-aminocyclopropane-1-carboxylate + ascorbate + O2
-
 Dianthus caryophyllus ethylene + cyanide + dehydroascorbate + CO2 + H2O
-
 ?
4.4.1.14 S-adenosyl-L-methionine
-
 Dianthus caryophyllus 1-aminocyclopropane-1-carboxylate + methylthioadenosine
-
 ?

Synonyms

EC Number Synonyms Comment Organism
1.14.17.4 ACC oxidase
-
 Dianthus caryophyllus
1.14.17.4 ACO
-
 Dianthus caryophyllus
4.4.1.14 1-aminocyclopropane-1-carboxylate synthase
-
 Dianthus caryophyllus
4.4.1.14 ASC
-
 Dianthus caryophyllus
4.4.1.14 DC-ACS1
-
 Dianthus caryophyllus
4.4.1.14 DC-ACS2
-
 Dianthus caryophyllus
4.4.1.14 S-adenosyl-L-methionine methylthioadenosine-lyase
-
 Dianthus caryophyllus

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.14.17.4 30
-
 assay at Dianthus caryophyllus
4.4.1.14 24
-
 highest enzyme activity in petals at day 10 after cutting Dianthus caryophyllus

Temperature Range [°C]

EC Number Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
1.14.17.4 additional information
-
 the enzyme is partially suppressed in petals and completely in gynoecia at 32°C, but expressed at 34°C Dianthus caryophyllus

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.14.17.4 7.4
-
 assay at Dianthus caryophyllus

Cofactor

EC Number Cofactor Comment Organism Structure
1.14.17.4 ascorbate
-
 Dianthus caryophyllus