Inhibition of soybean metabolism by cadmium and lead

Journal Article · Tue Jan 01 04:00:00 EST 1974 · Plant Physiol.; (United States)

DOI:https://doi.org/10.1104/pp.54.1.122· OSTI ID:5003306

Huang, C Y; Bazzaz, F A; Vanderhoef, L N

Lead (300 ..mu..M) and cadmium (18 ..mu..M) inhibit pod fresh weight in soybeans (Glycine Max L.) by 35%. Eighteen micromolar cadmium caused a 30% decline in nitrogenase activity by day 52 (the day on which maximum activity was measured) and a 71% inhibition by day 59. The heavy metals depressed photosynthetic rates; when photosynthesis was depressed by 60%, as measured on the day of peak photosynthesis activity, carbohydrate did not accumulate in the nodules. The reduction of pod fresh weight correlated with the effect of lead and cadmium on several other aspects of plant metabolism (shoot, root, leaf, and nodule dry weight; nodule ammonia, protein and carbohydrate content). 14 references, 3 figures, 1 table.

• Research Organization: Univ. of Illinois, Urbana
• OSTI ID: 5003306
• Journal Information: Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 54; ISSN PLPHA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
CADMIUM
CHEMICAL REACTIONS
ELEMENTS
ENZYME ACTIVITY
ENZYMES
GLYCINE HISPIDA
GROWTH
INHIBITION
LEAD
LEGUMINOSAE
METABOLISM
METALS
NITRO-GROUP DEHYDROGENASES
NITROGENASE
OXIDOREDUCTASES
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANT GROWTH
PLANTS
SYNTHESIS