Differentiation in Fern Gametophytes Treated with Purine and Pyrimidine Analogs

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Science  25 Dec 1964:
Vol. 146, Issue 3652, pp. 1690-1691
DOI: 10.1126/science.146.3652.1690


Analogs of the purines, adenine and guanine, and of the pyrimidines, cytosine and uracil, completely inhibited two-dimensional differentiation in the gametophytes of the fern, Asplenium nidus L. Analogs of thymine caused a nonspecific growth inhibition without suppressing two-dimensional growth. The effects of the analogs were reversed by the respective bases or their derivatives.