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Article
Plant regeneration from tuber discs of potato (Solanum tuberosum L.) using 6-benzylaminopurine (BAP)
Shoots, roots and callus were formed from tuber discs of potato, cultivar Désirée, when grown in vitro on the basal medium of Murashige & Skoog (1962) (MS) supplemented with 2,4-D and/or BAP. Callus was formed...
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Article
An autoradiographic study of the effect of the plant hormone abscisic acid on nucleic acid and protein metabolism
Abscisic acid maintains embryos in a state of dormancy and inhibits the incorporation of H3uridine and H3thymidine but not the incorporation of H3leucine. Ribosomes present in imbibed but dormant embryos do not b...
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Article
Cytolysomes in Long-dormant Plant Embryo Cells
DURING an investigation of the ultrastructure and physiology of dormant plant embryos, it was thought of interest to examine the fine structure of embryos maintained in a dormant state for an abnormally long p...
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Article
Intranuclear crystals in plant embryo cells
Two types of protein crystal occur in the nuclei of all tissues of the embryos of Fraxinus excelsior and F. americana. Small crystals about 0.1 micron in diameter and large crystals from 1–4 microns in diameter a...
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Article
Interaction of Growth Inhibitor and a Natural Germination Stimulator in the Dormancy of Fraxinus excelsior L.
DORMANCY of seeds of the genus Fraxinus has been variously ascribed to immaturity of the embryo1, mechanical resistance of the seed coats2,3, and the presence of growth-inhibiting substances within the pericarp3 ...
