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ULTRASTRUCTURAL STUDIES ON ARCHEGONIAL DEVELOPMENT IN THE MOSS PHYSCOMITRIUM CYATHICARPUM
Author(s) -
LAL M.,
KAUR G.,
CHAUHAN E.
Publication year - 1982
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1982.tb03402.x
Subject(s) - moss , ultrastructure , biology , organelle , microbiology and biotechnology , human fertilization , botany , mucilage , nucleus , egg cell , embryo , anatomy
SUMMARY Oogenesis in the moss Physcomitrium cyathicarpum is characterized by a copious secretion of mucilage into the venter of the archegonium due to the extrusion of numerous vesicles from the egg. Maturation of the egg is not attended by any special event in the nucleus. The cell organelles become redistributed into zones as the egg matures before fertilization.