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The ultrastructure of sea turtle eggshell does not contribute to interspecies variation in fungal invasion of the egg

journal contribution
posted on 06.12.2017, 00:00 by Andrea PhillottAndrea Phillott, Clifford ParmenterClifford Parmenter
The eggshell of green (Chelonia mydas (L., 1758)), loggerhead (Caretta caretta (L., 1758)), hawksbill (Eretmochelys imbricate (L., 1766)) and flatback (Natator depressus (Garman, 1880)) sea turtles nesting in eastern Australia were examined by scanning electron microscopy to determine if the ultrastructure was contributing to interspecific variation in fungal invasion of eggs. The eggshells of all species investigated were of similar structure (outer inorganic layer of aragonite crystals and an inner organic fibrillar layer) and similar thickness. Well-defined pores that would allow direct entry of fungal hyphae or spores were not present in any species. It was concluded that eggshell ultrastructure does not allow direct access by fungal hyphae or spores and does not contribute to interspecific variation in the vulnerability of loggerhead sea turtle eggs to fungal infection.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

84

Start Page

1339

End Page

1346

Number of Pages

8

ISSN

0008-4301

Location

Canada

Publisher

NRC Research Press

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Faculty of Sciences, Engineering and Health;

Era Eligible

Yes

Journal

Canadian Journal of Zoology.

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