Thank you for your helpful suggestions. I still need more methods for DNA and RNA isolations of plants. Sincerely, Richard C. Dana, Ph.D. Project Green Gene AMBIOCOM Box 910416 San Diego, CA 92191-0416 e-mail: rcdana at crash.cts.com CALL THE BBS BY MODEM, UPLOAD A METHOD, FOR DNA PURIFICATION FROM PLANTS OF DIFFERENT SPECIES and rna too. Thanbk You