Nucleolar DNA amplification inOrnithogalum endosperm |
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Authors: | J. Stephen |
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Affiliation: | (1) Present address: Department of Botany, University of Kerala, Kariavattom, Trivandrum, India |
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Abstract: | Summary 3H-thymidine autoradiography has revealed selective amplification of nucleolar DNA in the maturing endosperm ofOrnithogalum elatum Andr., a liliaceous plant. Apart from the unusually heavy3H-thymidine labelling in the nucleoli, there is recurrent production of labelled accessory nucleoli which migrate into the cytoplasm by dynamic blebbings of the nuclear envelope, presumably to boost protein biosynthesis in the endosperm cells which nourish the developing embryo. |
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