The American Society of 
Plant Physiologists 
Office of the President 
September 21, 1978 
Dr. Donald S. Fredrickson, Director 
National Institutes of Health 
9000 Rockville Pike 
Bethesda, MD 20014 
Dear Dr. Fredrickson: 
The Recombinant DNA Committee of this Society has prepared the enclosed 
comments and suggestions for revision of the guidelines for recombinant DNA 
research as they apply to potential uses in higher plants. I strongly urge 
you to consider these recommendations. 
Sincerely yours, 
Israel Zelitch 
President 
Head, Department of Biochemistry 
Connecticut Agricultural Experiment Station 
P.0. Box 1106: 123 Huntington Street 
New Haven, CT 06504 
Enclosure 
IZ : ehm 
[A-228] 
