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THE BIOLOGY OF HARVEYELLA MIRABILIS (CRYPTONEMIALES, RHODOPHYCEAE). VII. STRUCTURE AND PROPOSED FUNCTION OF HOST‐PENETRATING CELLS 1
Author(s) -
Goff Lynda J.
Publication year - 1979
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1979.tb02967.x
Subject(s) - biology , endomembrane system , endoplasmic reticulum , vesicle , cytoplasm , host (biology) , microbiology and biotechnology , function (biology) , membrane , biochemistry , golgi apparatus , ecology
The parasitic red alga Harveyella mirabilis (Reinsch) Schmitz & Reinke was examined by light and electron microscopy to determine the structural mechanism involved in nutrient transfer. The host‐penetrating rhizoidal cells are unique in possessing an extensive and apparently dynamic endomembrane system as well as other unique cytoplasmic inclusions. The membrane system consists of the plasmalemma, pinocytotic vesicles, multivesicular and concentric bodies, endoplasmic reticulum, dictyosomes, micro‐body‐like structures and an extensive vacuolar system. It is proposed that this system is active in the uptake and processing of host‐derived nutrients. Plasmalemmal extensions (plasmalemmavilli) of Harveyella medullary cells may also function in nutrient uptake.