Metabolism of hydrogen cyanide by higher plants.

A survey has been made of the occurrence and distribution of three enzymes which metabolize cyanide in a variety of higher plants including both cyanogenic and non-cyanogenic species. The enzymes investigated were beta-cyanoalanine synthase, rhodanese and formamide hydrolyase. beta-Cyanoalanine synthase was found to be present in every higher plant tested whereas rhodanese was found to occur far less commonly in plants. Formamide hydrolyase activity was not detected in any of the higher plants tested.In addition, quantitative analyses have been made of the potential hydrogen cyanide content of each plant investigated. A general trend was apparent between the hydrogen cyanide potential and cyanide metabolizing activity, in that the higher the hydrogen cyanide potential, in general, the higher the cyanide metabolizing activity.

[1]  J. Lile,et al.  Adsorbent polystyrene as an aid in plant enzyme isolation , 1979 .

[2]  D. F. Myers.  Enzymatic Release and Metabolism of Hydrogen Cyanide in Sorghum Infected by Gloeocercospora sorghi , 1978 .

[3]  白井 稜一.  Study on cyanide metabolizing activity in mesocarp of Rosaceae , 1977 .

[4]  W. Fry.  Association of Formamide Hydro-lyase with Fungal Pathogenicity to Cyanogenic Plants , 1977 .

[5]  J. Lambert,et al.  Stable reagents for the colorimetric determination of cyanide by modified Koenig reactions , 1975 .

[6]  M. Chew.  Rhodanese in higher plants , 1973 .

[7]  E. Conn,et al.  Cyanide metabolism in higher plants. V. The formation of asparagine from -cyanoalanine. , 1972, Archives of biochemistry and biophysics.

[8]  W. Fry,et al.  Cyanide degradion by an enzyme from Stemphylium loti. , 1972, Archives of biochemistry and biophysics.

[9]  C. Boey,et al.  Rhodanese of tapioca leaf , 1972 .

[10]  G. Federici,et al.  Rhodanese activity in chloroplasts. , 1972, Physiological chemistry and physics.

[11]  G. Strobel,et al.  Cyanide metabolism by Bacillus megaterium. , 1969, The Journal of biological chemistry.

[12]  Y. P. Abrol,et al.  Cyanide metabolism in higher plants. 3. The biosynthesis of beta-cyanolanine. , 1968, The Journal of biological chemistry.

[13]  M. Mazelis,et al.  Cleavage of L-cystine by soluble enzyme preparations from Brassica species. , 1967, Archives of biochemistry and biophysics.

[14]  P. Dunnill,et al.  Enzymatic Formation of β-Cyanoalanine from Cyanide by Escherichia coli Extracts , 1965, Nature.

[15]  L. Hadwiger,et al.  Enzymatic formation of beta-cyanoalanine from cyanide. , 1965, Nature.

[16]  E. Conn,et al.  BIOSYNTHESIS OF THE CYANOGENIC GLUCOSIDES LINAMARIN AND LOTAUSTRALIN. I. LABELING STUDIES IN VIVO WITH LINUM USITATISSIMUM. , 1964, The Journal of biological chemistry.

[17]  N. A. Sörensen,et al.  Crystalline Rhodanese. I. Purification and Physicochemical Examination. , 1953 .

[18]  O. H. Lowry,et al.  Protein measurement with the Folin phenol reagent. , 1951, The Journal of biological chemistry.

[19]  F. D. Snell,et al.  Colorimetric Methods of Analysis , 1945 .

[20]  T. Friedemann,et al.  PYRUVIC ACID II. THE DETERMINATION OF KETO ACIDS IN BLOOD AND URINE , 1943 .