The embryo-sac of Euphorbia heterophylla L.- a reinvestigation

Maheshwari, P. (1942) The embryo-sac of Euphorbia heterophylla L.- a reinvestigation Proceedings of the Indian Academy of Sciences, Section B, 15 (3). pp. 158-166. ISSN 0370-0097

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A reinvestigation of the embryo-sac of Euphorbia heterophylla shows that the development is not of the Adoxa- type as reported by Sanchez (1938) but of the Normal- type. The megaspore-mother cell gives rise to a tetrad of megaspores of which the chalazal cell functions to produce a normal 8-nucleate embryo-sac. It is pointed out that as a rule vacuolation and polarity are not seen in embryo-sacs until after the reduction divisions are over. They form such reliable guides that all cases, where the reported observations are not in accordance with the above, deserve a fresh study.

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Source:Copyright of this article belongs to Indian Academy of Sciences.
ID Code:31371
Deposited On:14 Mar 2011 09:21
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