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SPORE WALL FORMATION IN THE MYXOMYCETE PHYSARELLA OBLONGA
Author(s) -
Bechtel Donald B.
Publication year - 1977
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1977.tb07612.x
Subject(s) - vesicle , biology , spore , golgi apparatus , cell wall , organelle , secretion , ultrastructure , microbiology and biotechnology , biophysics , botany , biochemistry , endoplasmic reticulum , membrane
The spore wall of the myxomycete, Physarella oblonga , requires only 1 hr to develop. The spore wall surface ornamentations, the warts, are secreted first, followed by an outer electron‐dense layer and an inner electron‐lucent layer. A measurement analysis was conducted to determine if vesicles were involved in wall elaboration. By comparing spore plasmalemma length to the number of fused vesicles, a semi‐quantitative analysis can be obtained. The determination reveals that very few vesicles are associated with wart and outer wall development. The greatest number of vesicles are associated with inner wall secretion. Plasmalemmasomes are most numerous during outer wall formation and Golgi bodies are observed only during inner wall elaboration. Other organelles do not seem directly involved in wall secretion.