Russian Journal of Plant Physiology

, Volume 59, Issue 4, pp 443–450 | Cite as

Mikhail Khristoforovich Chailakhyan: The fate of the scientist under the sign of florigen

  • G. A. Romanov
Dedicated to the 110th Anniversary of Academician M.Kh. Chailachyan Birthday (1902–1991)


The more significant is a discovery made by the scientist, the greater influence it exerts on the fate of its author. The theory of florigen, a hormone of flowering, put forward by M.Kh. Chailakhyan in 1936 initially was inconvenient for Soviet authorities and brought severe trials to the scientist. However, as distinct from many others, Chailakhyan did not deny his scientific beliefs but continued to defend them in spite of harassment and threats. Later, on the contrary, this theory promoted the worldwide fame of its creator, although during Chailakhyan lifetime florigen has not been definitely identified chemically. Chailakhyan was close to the establishing of florigen protein nature, but even his long life was not enough to identify this elusive substance.


higher plants florigen flowering hormonal theory photoperiodism FT proteins 


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© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  1. 1.Timiryazev Institute of Plant PhysiologyRussian Academy of SciencesMoscowRussia

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