Identification of the Volatile Factor Involved in Spermatocyte Differentiation in vitro

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Science  06 Jan 1961:
Vol. 133, Issue 3445, pp. 34-36
DOI: 10.1126/science.133.3445.34


Ketchel and Williams postulated a "volatile factor" which participates in the differentiation of insect spermatocytes in vitro. It was found not to be a specific product of developing cysts. Instead, its effects are duplicated by a number of reagents which have only a high water content in common. The hypothesis that the volatile factor is water was experimentally confirmed.