Floral lipoxygenase: activity during senescence and inhibition by phenidone

Analysis of petal extracts from various species revealed a wide range of lipoxygenase (LOX) activity among sources. A large increase in LOX activity was observed during senescence in both gladiolus (Gladiolus X hortulanus Bailey) and carnation (Dianthus caryophyllus L.) petal tissue. The increase be...

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Bibliographic Details
Published inJournal of the American Society for Horticultural Science Vol. 115; no. 3; pp. 455 - 457
Main Authors Peary, J.S. (The Ohio State University, Columbus, OH), Prince, T.A
Format Journal Article
LanguageEnglish
Published Alexandria, VA American Society for Horticultural Science 01.05.1990
Subjects
ACTIVIDAD ENZIMATICA
ACTIVITE ENZYMATIQUE
Agronomy. Soil science and plant productions
Biological and medical sciences
COROLA
COROLLE
DIANTHUS
Economic plant physiology
ENVEJECIMIENTO
Enzymes
Fundamental and applied biological sciences. Psychology
GLADIOLUS
Metabolism
Nutrition. Photosynthesis. Respiration. Metabolism
OXIDORREDUCTASAS
OXYDOREDUCTASE
Plant physiology and development
VIEILLISSEMENT
Laboratory study
Iridaceae
Monocotyledones
Flower
Senescence
Enzyme inhibitor
Ornamental crop
Gladiolus
Dianthus caryophyllus
Caryophyllaceae
Enzymatic activity
Dicotyledones
Angiospermae
Spermatophyta
Lipoxygenase
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Summary:Analysis of petal extracts from various species revealed a wide range of lipoxygenase (LOX) activity among sources. A large increase in LOX activity was observed during senescence in both gladiolus (Gladiolus X hortulanus Bailey) and carnation (Dianthus caryophyllus L.) petal tissue. The increase began before the first visible signs of senescence were evident and activity peaked at early to mid-senescence stages. LOX activity of petal extracts from gladiolus was inhibited in vitro by phenidone, a known LOX inhibitor
Bibliography:F60
9040099
ISSN:0003-1062
2327-9788
DOI:10.21273/JASHS.115.3.455