| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2016-09-29 |
| タイトル |
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タイトル |
Acidocalcisomes as Calcium- and Polyphosphate-Storage Compartments during Embryogenesis of the Insect Rhodnius prolixus Stahl |
| 言語 |
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言語 |
eng |
| DOI |
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関連識別子 |
https://doi.org/10.1371/journal.pone.0027276 |
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関連名称 |
10.1371/journal.pone.0027276 |
| 資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
| 著者 |
Ramos, Isabela
Gomes, Fabio
Koeller, Carolina M.
Saito, Katsuharu
Heise, Norton
Masuda, Hatisaburo
Docampo, Roberto
de, Souza, Wanderley
Machado, Ednildo A.
Miranda, Kildare
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| 信州大学研究者総覧へのリンク |
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氏名 |
Saito, Katsuharu |
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URL |
http://soar-rd.shinshu-u.ac.jp/profile/ja.HCkpPUkh.html |
| 出版者 |
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出版者 |
PUBLIC LIBRARY SCIENCE |
| 引用 |
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内容記述 |
PLOS ONE. 6(11):e27276 (2011) |
| 書誌情報 |
PLOS ONE
巻 6,
号 11,
p. :e27276,
発行日 2011-11
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| 抄録 |
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内容記述 |
Background: The yolk of insect eggs is a cellular domain specialized in the storage of reserve components for embryo development. The reserve macromolecules are stored in different organelles and their interactions with the embryo cells are mostly unknown. Acidocalcisomes are lysosome-related organelles characterized by their acidic nature, high electron density and large content of polyphosphate bound to several cations. In this work, we report the presence of acidocalcisome-like organelles in eggs of the insect vector Rhodnius prolixus. Methodology/Principal findings: Characterization of the elemental composition of electron-dense vesicles by electron probe X-ray microanalysis revealed a composition similar to that previously described for acidocalcisomes. Following subcellular fractionation experiments, fractions enriched in acidocalcisomes were obtained and characterized. Immunofluorescence showed that polyphosphate polymers and the vacuolar proton translocating pyrophosphatase (V-H(+)-PPase, considered as a marker for acidocalcisomes) are found in the same vesicles and that these organelles are mainly localized in the egg cortex. Polyphosphate quantification showed that acidocalcisomes contain a significant amount of polyphosphate detected at day-0 eggs. Elemental analyses of the egg fractions showed that 24.5 +/- 0.65% of the egg calcium are also stored in such organelles. During embryogenesis, incubation of acidocalcisomes with acridine orange showed that these organelles are acidified at day-3 (coinciding with the period of yolk mobilization) and polyphosphate quantification showed that the levels of polyphosphate tend to decrease during early embryogenesis, being approximately 30% lower at day-3 compared to day-0 eggs. Conclusions: We found that acidocalcisomes are present in the eggs and are the main storage compartments of polyphosphate and calcium in the egg yolk. As such components have been shown to be involved in a series of dynamic events that may control embryo growth, results reveal the potential involvement of a novel organelle in the storage and mobilization of inorganic elements to the embryo cells. |
| 資源タイプ（コンテンツの種類） |
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| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1932-6203 |
| PubMed |
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識別子タイプ |
PMID |
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関連識別子 |
https://pubmed.ncbi.nlm.nih.gov/22096545/ |
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関連名称 |
22096545 |
| 権利 |
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権利情報 |
Copyright: © 2011 Ramos et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| WoS |
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URL |
http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000297553900029 |
Acidocalcisomes_Calcium-Polyphosphate-Storage_Compartments.pdf (1.3 MB)
