chlorophyll autofluorescence in globular and heart-shaped embryos of some dicotyledons

B. Fyk, J. Bednara, B. Rodkiewicz

Abstract


The regions in early embryos of several species display chlorophyll autofluorescence in a certain order. First, autofluorescence in Pisum sativum appears in the basal part of globular embryos; in Lathyrus vernus in the basal part of early heart embryos; in Cardamine pratensis at the sides of the hypocotyl or in Phaseolus vulgaris in the hypocotyl of elongating heart-shaped embryos. Chlorophyll autofluorescence in an embryo proper of Pisum coincides with the development of a lamellar system in the plastids. The suspensorial plastids remain undifferentiated with one or two DNA positive nucleoids. Cardamine, Lathyrus, Phaseolus and Pisum suspensors give no chlorophyll autofluorescence.

Keywords


chlorophyll in embryogenesis; embryonic plastids; Pisum; Phaseolus; Lathyrus; Cardamine

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DOI: https://doi.org/10.5586/asbp.1996.028

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
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Polish Botanical Society