論文 - 詳細
| RRC ID | 57666 |
|---|---|
| 著者 | Aoyagi S, Kodama Y, Passarelli MK, Vorng JL, Kawashima T, Yoshikiyo K, Yamamoto T, Gilmore IS. |
| タイトル | OrbiSIMS Imaging Identifies Molecular Constituents of the Perialgal Vacuole Membrane of Paramecium bursaria with Symbiotic Chlorella variabilis. |
| ジャーナル | Anal Chem |
| Abstract |
The protist (mostly single-celled organisms), Paramecium bursaria, forms an intracellular symbiotic relationship with the single-celled algae, Chlorella variabilis, where P. bursaria provides nutrients (i.e., Ca2+, Mg2+, and K+), carbon dioxide for photosynthesis and protection from viruses, while C. variabilis provides oxygen, carbon fixation, and nutrients. Key to this successful relationship is the perialgal vacuole (PV) membrane, which surrounds C. variabilis and protects it from digestion by P. bursaria. The membrane is fragile and difficult to analyze using conventional methods therefore very little is known about the molecular composition. We used the OrbiSIMS, a new high-resolution mass spectrometer with subcellular resolution imaging, to study the compartmentalization of endosymbionts and elucidate biomolecular interactions between the host and endosymbiont. Ions from the region of interest, close to C. variabilis, and specific to the target samples containing PVs were found based on the chemical mapping and masses of the ions. We show chemical localizations of oligosaccharides in close proximity of C. variabilis endosymbionts in P. bursaria. These oligosaccharides are detected in host-endosymbiont samples containing PV membrane-bound algae and absent in free-living algae and digestive vacuole (DV) membrane-bound algae in P. bursaria. |
| 巻・号 | 91(22) |
| ページ | 14545-14551 |
| 公開日 | 2019-10-17 |
| DOI | 10.1021/acs.analchem.9b03571 |
| PMID | 31621296 |
| MeSH | Chlorella / chemistry* Intracellular Membranes / chemistry* Mass Spectrometry Oligosaccharides / analysis Paramecium / chemistry* Symbiosis / physiology Vacuoles / chemistry* |
| IF | 6.785 |
| 引用数 | 2 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 10 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ゾウリムシ | Yad1g1N (PB031010B) Yad1w (PB031012B) |