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Functional Compartments During Sporangium Development in the Pteridophyte Cyrtomium falcatum (L.f.) Presl as Expressed in Tapetum Function
Author(s) -
Oldenhof H.,
Willemse M. I. M.
Publication year - 1999
Publication title -
plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 1435-8603
DOI - 10.1111/j.1438-8677.1999.tb00715.x
Subject(s) - tapetum , pteridophyte , sporangium , biology , callose , compartmentalization (fire protection) , botany , microbiology and biotechnology , spore , fern , pollen , stamen , cell wall , biochemistry , microspore , enzyme
The tapetum surrounds the developing sporogenous tissue, and therefore is suggested to have an important role during sporogerlesis. In pteridophytes details about tapetum development and function during sporangium development are poorly known. The current article analyses the leptospor‐angiate development of the pteridophyte Cyrtomium falcatum in terms of functional compartmentalization related to tapetum function. Morphology, development and localization of different compounds during sporangium development are studied. Dur ing C. falcatum leptosporangiate development phases of initia tion, division, differentiation, and maturation are identified. Functional compartments are distinguished by the presence of a callose culture sac during the division and differentiation phase, and a callose spore sac during the differentiation and ma turation phase.