Altered morphogenesis of placental tissues of tobacco in vitro: Stigmatoid and carpelloid outgrowths.
When placental tissue of tobacco (Nicotiana tabacum L.) was cultured on liquid medium with 4% sucrose but with no hormones, many ovules, instead of maturing normally, grew as elongate, style-like structures with terminal stigmas. A limited number of these formed a proximal swelling with ovules. The significance of these results is discussed briefly.
Department of Biology, Dalhousie University, B3H 4J1, Halifax, Nova Scotia, Canada.
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McHughen