Hydroperoxide lyase products, hexanal, hexenal and nonenal, inhibit soybean seedling growth

Journal Article · Sat Apr 01 04:00:00 EST 1989 · Plant Physiology, Supplement; (USA)

OSTI ID:6936377

Gardner, H W; Dornbos, Jr, D L ^[1]

---

1. Dept. of Agriculture, Peoria, IL (USA)

Hexanal, a product of hydroperoxide lyase, inhibited the germination and growth of soybean seeds. Hexanal was continuously delivered to germinating seeds as a vapor dissolved in air with a flow-through system (100 ml/min). Only 0.8 {mu}g hexanal/ml air was required to inhibit seedling growth by 50%; nearly 100% inhibition occurred with a dose of 1.8 {mu}g hexanal/ml air. In the absence of hexanal brown spots were often visible on the seedlings, but at sublethal doses of hexanal, the seedlings were largely devoid of these spots. The relative toxicity of three hydroperoxide lyase products, hexanal, trans-2-hexanal and trans-2-nonenal, were compared with a Petri-dish bioassay. The order of toxicity against seedling growth was hexenal>hexanal>nonenal.

• OSTI ID: 6936377
• Journal Information: Plant Physiology, Supplement; (USA), Journal Name: Plant Physiology, Supplement; (USA) Vol. 89:4; ISSN PPYSA; ISSN 0079-2241
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALDEHYDES
ALKANES
ALKENES
ATMOSPHERES
COMPARATIVE EVALUATIONS
CONTROLLED ATMOSPHERES
ENZYMES
GLYCINE HISPIDA
GROWTH
HEXANE
HEXENES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
INHIBITION
LEGUMINOSAE
LYASES
MAGNOLIOPHYTA
MAGNOLIOPSIDA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
PLANT GROWTH
PLANTS
SEEDLINGS
TOXICITY