Pelletreau, Karen N., Weber, Andreas P. M., Weber, Katrin L. and Rumpho, Mary E. (2014). Lipid Accumulation during the Establishment of Kleptoplasty in Elysia chlorotica. PLoS One, 9 (5). SAN FRANCISCO: PUBLIC LIBRARY SCIENCE. ISSN 1932-6203

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Abstract

The establishment of kleptoplasty (retention of stolen plastids) in the digestive tissue of the sacoglossan Elysia chlorotica Gould was investigated using transmission electron microscopy. Cellular processes occurring during the initial exposure to plastids were observed in laboratory raised animals ranging from 1 - 14 days post metamorphosis (dpm). These observations revealed an abundance of lipid droplets (LDs) correlating to plastid abundance. Starvation of animals resulted in LD and plastid decay in animals,5 dpm that had not yet achieved permanent kleptoplasty. Animals allowed to feed on algal prey (Vaucheria litorea C. Agardh) for 7 d or greater retained stable plastids resistant to cellular breakdown. Lipid analysis of algal and animal samples supports that these accumulating LDs may be of plastid origin, as the often algal- derived 20:5 eicosapentaenoic acid was found in high abundance in the animal tissue. Subsequent culturing of animals in dark conditions revealed a reduced ability to establish permanent kleptoplasty in the absence of photosynthetic processes, coupled with increased mortality. Together, these data support an important role of photosynthetic lipid production in establishing and stabilizing this unique animal kleptoplasty.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Pelletreau, Karen N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weber, Andreas P. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weber, Katrin L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rumpho, Mary E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-438354
DOI: 10.1371/journal.pone.0097477
Journal or Publication Title: PLoS One
Volume: 9
Number: 5
Date: 2014
Publisher: PUBLIC LIBRARY SCIENCE
Place of Publication: SAN FRANCISCO
ISSN: 1932-6203
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
POLYUNSATURATED FATTY-ACIDS; DIETARY FISH-OIL; GENE-EXPRESSION; CODIUM-FRAGILE; SEA SLUGS; SYMBIOTIC ZOOXANTHELLAE; EICOSAPENTAENOIC ACID; DIGESTIVE GLAND; CHLOROPLASTS; DROPLETSMultiple languages
Multidisciplinary SciencesMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/43835

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