Major Changes in Plastid Protein Import and the Origin of the Chloroplastida
Summary: Core components of plastid protein import and the principle of using N-terminal targeting sequences are conserved across the Archaeplastida, but lineage-specific differences exist. Here we compare, in light of plastid protein import, the response to high-light stress from representatives of...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-03-01
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| Series: | iScience |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004220300808 |
| _version_ | 1828190424530944000 |
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| author | Michael Knopp Sriram G. Garg Maria Handrich Sven B. Gould |
| author_facet | Michael Knopp Sriram G. Garg Maria Handrich Sven B. Gould |
| author_sort | Michael Knopp |
| collection | DOAJ |
| description | Summary: Core components of plastid protein import and the principle of using N-terminal targeting sequences are conserved across the Archaeplastida, but lineage-specific differences exist. Here we compare, in light of plastid protein import, the response to high-light stress from representatives of the three archaeplastidal groups. Similar to land plants, Chlamydomonas reinhardtii displays a broad response to high-light stress, not observed to the same degree in the glaucophyte Cyanophora paradoxa or the rhodophyte Porphyridium purpureum. We find that only the Chloroplastida encode both Toc75 and Oep80 in parallel and suggest that elaborate high-light stress response is supported by changes in plastid protein import. We propose the origin of a phenylalanine-independent import pathway via Toc75 allowed higher import rates to rapidly service high-light stress, but with the cost of reduced specificity. Changes in plastid protein import define the origin of the green lineage, whose greatest evolutionary success was arguably the colonization of land. : Biological Sciences; Plant Biology; Plant Evolution Subject Areas: Biological Sciences, Plant Biology, Plant Evolution |
| first_indexed | 2024-04-12T08:22:16Z |
| format | Article |
| id | doaj.art-8a7bc41c943d4f5ba47050604c71ccfa |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-04-12T08:22:16Z |
| publishDate | 2020-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-8a7bc41c943d4f5ba47050604c71ccfa2022-12-22T03:40:32ZengElsevieriScience2589-00422020-03-01233Major Changes in Plastid Protein Import and the Origin of the ChloroplastidaMichael Knopp0Sriram G. Garg1Maria Handrich2Sven B. Gould3Institute for Molecular Evolution, HH-University Düsseldorf, 40225 Düsseldorf, GermanyInstitute for Molecular Evolution, HH-University Düsseldorf, 40225 Düsseldorf, GermanyInstitute for Molecular Evolution, HH-University Düsseldorf, 40225 Düsseldorf, GermanyInstitute for Molecular Evolution, HH-University Düsseldorf, 40225 Düsseldorf, Germany; Corresponding authorSummary: Core components of plastid protein import and the principle of using N-terminal targeting sequences are conserved across the Archaeplastida, but lineage-specific differences exist. Here we compare, in light of plastid protein import, the response to high-light stress from representatives of the three archaeplastidal groups. Similar to land plants, Chlamydomonas reinhardtii displays a broad response to high-light stress, not observed to the same degree in the glaucophyte Cyanophora paradoxa or the rhodophyte Porphyridium purpureum. We find that only the Chloroplastida encode both Toc75 and Oep80 in parallel and suggest that elaborate high-light stress response is supported by changes in plastid protein import. We propose the origin of a phenylalanine-independent import pathway via Toc75 allowed higher import rates to rapidly service high-light stress, but with the cost of reduced specificity. Changes in plastid protein import define the origin of the green lineage, whose greatest evolutionary success was arguably the colonization of land. : Biological Sciences; Plant Biology; Plant Evolution Subject Areas: Biological Sciences, Plant Biology, Plant Evolutionhttp://www.sciencedirect.com/science/article/pii/S2589004220300808 |
| spellingShingle | Michael Knopp Sriram G. Garg Maria Handrich Sven B. Gould Major Changes in Plastid Protein Import and the Origin of the Chloroplastida iScience |
| title | Major Changes in Plastid Protein Import and the Origin of the Chloroplastida |
| title_full | Major Changes in Plastid Protein Import and the Origin of the Chloroplastida |
| title_fullStr | Major Changes in Plastid Protein Import and the Origin of the Chloroplastida |
| title_full_unstemmed | Major Changes in Plastid Protein Import and the Origin of the Chloroplastida |
| title_short | Major Changes in Plastid Protein Import and the Origin of the Chloroplastida |
| title_sort | major changes in plastid protein import and the origin of the chloroplastida |
| url | http://www.sciencedirect.com/science/article/pii/S2589004220300808 |
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