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Utilization of Organic Compounds by Germinating Soybean Seeds
Author(s) -
Zwarun A. A.
Publication year - 1974
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1974.03615995003800040022x
Subject(s) - glycine , citric acid , chemistry , urea , glycerol , fructose , germination , maltose , food science , sucrose , chromatography , botany , biochemistry , amino acid , biology
Surface‐sterilized soybean seeds ( Glycine max L.) were placed inside sterile vials containing 5 ml of sterile, deionized water and 1µCi amounts of various 14 C‐labeled organic compounds. The atmosphere inside the sealed vials was analyzed for 14 CO 2 every hour for 12 hours. The compounds tested were uniformly labeled glucose, fructose, maltose, lysine, glycerol, and urea; glycine labeled in the 1 or the 2 position; and citric acid labeled in the 1 and 5 positions. All compounds tested were metabolized by germinating soybean seeds as evidenced by 14 CO 2 evolution. However, with the exception of urea, the amount of 14 CO 2 produced was small. Urea was metabolized very rapidly and very extensively. It appears that soybean seeds can metabolize external organic molecules within 1 hour of exposure to moisture.