ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1
ABSTRACT A small intracellular eukaryotic algal symbiont, 1.5–3.5 μm in diameter, occurs abundantly and persistently in nine planktonic Foraminifera host species. This alga is different from the dinoflagellate, from 8–12 μm in diameter, known to occur in the four spinose species Orbulina universa, G...
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crwiley:10.1111/j.1529-8817.1987.tb04215.x 2024-06-02T08:13:22+00:00 ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1 Gastrich, Mary Downes 1987 http://dx.doi.org/10.1111/j.1529-8817.1987.tb04215.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1987.tb04215.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1987.tb04215.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 23, issue 4, page 623-632 ISSN 0022-3646 1529-8817 journal-article 1987 crwiley https://doi.org/10.1111/j.1529-8817.1987.tb04215.x 2024-05-03T10:53:26Z ABSTRACT A small intracellular eukaryotic algal symbiont, 1.5–3.5 μm in diameter, occurs abundantly and persistently in nine planktonic Foraminifera host species. This alga is different from the dinoflagellate, from 8–12 μm in diameter, known to occur in the four spinose species Orbulina universa, Globigerinoides sacculifer, G. ruber, and G. conglobatus. Transmission and epifluorescent microscopy were used to confirm the presence cophyta. The evidence supporting this classification includes the presence of a chloroplastic endoplasmic reticulum surrounding the plastids and tubular cristae, as opposed to flattened cristae, in the mitochondria. Three classes of algae may be represented including the Chrysophyceae, Bacillariophyceae, and Prymnesiophyceae. Ultrastructural analysis indicated that the alga in the spinose Globigerinella aequilateralis resembles a prymnesiophyte because the chloroplasts lack a girdle lamella. The algae in the non‐spinose species and the short‐spined Globigerina cristata resemble endocytic chrysophytes or diatoms because of the presence of a girdle lamella. Ultrastructural characteristics of the chrysophycophycean alga present in planktonic Foraminifera are discussed and compared to those of non‐dinoflagellate symbiotic algae associated with other invertebrate hosts. Article in Journal/Newspaper Planktonic foraminifera Wiley Online Library Journal of Phycology 23 4 623 632 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT A small intracellular eukaryotic algal symbiont, 1.5–3.5 μm in diameter, occurs abundantly and persistently in nine planktonic Foraminifera host species. This alga is different from the dinoflagellate, from 8–12 μm in diameter, known to occur in the four spinose species Orbulina universa, Globigerinoides sacculifer, G. ruber, and G. conglobatus. Transmission and epifluorescent microscopy were used to confirm the presence cophyta. The evidence supporting this classification includes the presence of a chloroplastic endoplasmic reticulum surrounding the plastids and tubular cristae, as opposed to flattened cristae, in the mitochondria. Three classes of algae may be represented including the Chrysophyceae, Bacillariophyceae, and Prymnesiophyceae. Ultrastructural analysis indicated that the alga in the spinose Globigerinella aequilateralis resembles a prymnesiophyte because the chloroplasts lack a girdle lamella. The algae in the non‐spinose species and the short‐spined Globigerina cristata resemble endocytic chrysophytes or diatoms because of the presence of a girdle lamella. Ultrastructural characteristics of the chrysophycophycean alga present in planktonic Foraminifera are discussed and compared to those of non‐dinoflagellate symbiotic algae associated with other invertebrate hosts. |
format |
Article in Journal/Newspaper |
author |
Gastrich, Mary Downes |
spellingShingle |
Gastrich, Mary Downes ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1 |
author_facet |
Gastrich, Mary Downes |
author_sort |
Gastrich, Mary Downes |
title |
ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1 |
title_short |
ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1 |
title_full |
ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1 |
title_fullStr |
ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1 |
title_full_unstemmed |
ULTRASTRUCTURE OF A NEW INTRACELLULAR SYMBIOTIC ALGA FOUND WITHIN PLANKTONIC FORAMINIFERA 1 |
title_sort |
ultrastructure of a new intracellular symbiotic alga found within planktonic foraminifera 1 |
publisher |
Wiley |
publishDate |
1987 |
url |
http://dx.doi.org/10.1111/j.1529-8817.1987.tb04215.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1987.tb04215.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1987.tb04215.x |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Journal of Phycology volume 23, issue 4, page 623-632 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1529-8817.1987.tb04215.x |
container_title |
Journal of Phycology |
container_volume |
23 |
container_issue |
4 |
container_start_page |
623 |
op_container_end_page |
632 |
_version_ |
1800736840192360448 |