exospore


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ex·o·spore

(ek'sō-spōr),
An exogenous spore, not encased in a sporangium.
[exo- + G. sporos, seed]
Farlex Partner Medical Dictionary © Farlex 2012

exospore

(ĕk′sō-spôr′)
n.
1. The outermost layer of the wall of certain spores.
2. An asexual spore developed externally by budding, as from a sporophore.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

exospore

a type of SPORE formed by MICROORGANISMS by BUDDING, or by the formation of a SEPTUM and FISSION.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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References in periodicals archive ?
The exospore is 140 nm to 1.0 [micro]m thick, with a smooth
are rodlets that are continuous with the exospore dark coat (Fig.
outside to inside, of perispore, para-exospore, exospore, and endospore.
exospore with two zones was mentioned by Lugardon (1976), Pettitt
an exospore divided into two zones, which they called the outer and
inner exospore. This different interpretation could be due to the
those of the exospore with respect to both chemical composition and
The characteristics of the exospore are uniform in all of the
A strongly contrasted coat is always present on the exospore
the exospore and the para-exospore and inside the chamber over the
The continuity between the exospore and the elements of the
Microspore morphology of Isoetes species (Lycophyta) from southern South America. Part II. tem analysis of some selected types

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