DOI: 10.1111/j.1550-7408.1996.tb01388.x. Microsporidian Spore Wall: Ultrastructural Findings on Encephalitozoon hellem Exospore

Microsporidian Spore Wall: Ultrastructural Findings on Encephalitozoon hellem Exospore

10.1111/j.1550-7408.1996.tb01388.x

Crossref journal-article

Wiley

Journal of Eukaryotic Microbiology (311)

Abstract

A study of the spore wall of Encephalitozoon hellem was performed on thin sections, freeze‐fracture, and deep‐etched samples to obtain information on spore wall organization and composition. Our observations demonstrate that the spore wall is formed by an inner 30–35 nm electron‐lucent endospore and an outer 25–30 nm electron‐dense exospore. The exospore is a complex of three layers: an outer spiny layer, an electron‐lucent intermediate lamina and an inner fibrous layer. Freeze‐fracture and deep‐etching techniques reveal that the intermediate lamina and the inner fibrous layer result from the different spatial disposition of the same 4‐nm thick fibrils. In thin sections the endospore reveals a scattered electron‐dense material that appears in the form of trabecular structures when analyzed in deep‐etched samples. The presence of chitin in the exospore is discussed.

Bibliography

BIGLIARDI, E., SELMI, M. G., LUPETTI, P., CORONA, S., GATTI, S., SCAGLIA, M., & SACCHI, L. (1996). Microsporidian Spore Wall: Ultrastructural Findings on Encephalitozoon hellem Exospore. Journal of Eukaryotic Microbiology, 43(3), 181â186. Portico.

Authors 7

ELISA BIGLIARDI (first)
MARIA GLORIA SELMI (additional)
PIETRO LUPETTI (additional)
SILVIA CORONA (additional)
SIMONETTA GATTI (additional)
MASSIMO SCAGLIA (additional)
LUCIANO SACCHI (additional)

References 26 Referenced 52

10.1111/j.1550-7408.1991.tb06078.x
10.1016/B978-0-12-426016-0.50009-2
{'key': 'e_1_2_1_4_2', 'first-page': '631', 'article-title': 'In vitro and in vivo investigations of human microsporidia', 'volume': '38', 'author': 'Canning E. U.', 'year': '1991', 'journal-title': 'J. Protozool.'} / J. Protozool. / In vitro and in vivo investigations of human microsporidia by Canning E. U. (1991)
10.1016/S0932-4739(11)80052-0
10.1016/0163-4453(93)91923-D
10.1016/1047-8477(90)90020-D
10.1016/0022-2011(69)90162-1
10.1002/cm.970220105
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10.1139/b84-363
10.1111/j.1469-8137.1986.tb00852.x
10.1242/jcs.21.1.73 / J. Cell Sci. / The chitin crystallite in arthropod cuticle by Neville A. C. (1976)
10.1111/j.1550-7408.1994.tb06089.x
10.1111/j.1699-0463.1994.tb05240.x
{'key': 'e_1_2_1_16_2', 'first-page': '967', 'article-title': 'Mise en évidence des polysaccharides sur coupes fines en microscopie électronique', 'volume': '6', 'author': 'Thiéry J. P.', 'year': '1967', 'journal-title': 'J. Microsc.'} / J. Microsc. / Mise en évidence des polysaccharides sur coupes fines en microscopie électronique by Thiéry J. P. (1967)
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{'key': 'e_1_2_1_18_2', 'first-page': '205S', 'article-title': 'Hydrolyse enzymatique des spores de microsporidies', 'volume': '14', 'author': 'Vavra J.', 'year': '1967', 'journal-title': 'J. Protozool.'} / J. Protozool. / Hydrolyse enzymatique des spores de microsporidies by Vavra J. (1967)
{'key': 'e_1_2_1_19_2', 'first-page': '1', 'volume-title': 'Comparative Pathobiology', 'author': 'Vavra J.', 'year': '1976'} / Comparative Pathobiology by Vavra J. (1976)
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{'key': 'e_1_2_1_25_2', 'first-page': '18', 'volume-title': 'Subcellular Biochemistry', 'author': 'Weidner E.', 'year': '1992'} / Subcellular Biochemistry by Weidner E. (1992)
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10.2307/3226377

Dates

Type	When
Created	18 years, 3 months ago (May 14, 2007, 1:55 a.m.)
Deposited	1 year, 9 months ago (Oct. 27, 2023, 3:31 a.m.)
Indexed	9 months ago (Nov. 19, 2024, 11:06 a.m.)
Issued	29 years, 3 months ago (May 1, 1996)
Published	29 years, 3 months ago (May 1, 1996)
Published Online	18 years, 3 months ago (May 1, 2007)
Published Print	29 years, 3 months ago (May 1, 1996)

Funders 0

None

BibTeX

@article{BIGLIARDI_1996, title={Microsporidian Spore Wall: Ultrastructural Findings on Encephalitozoon hellem Exospore}, volume={43}, ISSN={1550-7408}, url={http://dx.doi.org/10.1111/j.1550-7408.1996.tb01388.x}, DOI={10.1111/j.1550-7408.1996.tb01388.x}, number={3}, journal={Journal of Eukaryotic Microbiology}, publisher={Wiley}, author={BIGLIARDI, ELISA and SELMI, MARIA GLORIA and LUPETTI, PIETRO and CORONA, SILVIA and GATTI, SIMONETTA and SCAGLIA, MASSIMO and SACCHI, LUCIANO}, year={1996}, month=may, pages={181–186} }

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