{"id":169,"date":"2021-03-24T11:23:18","date_gmt":"2021-03-24T02:23:18","guid":{"rendered":"https:\/\/www.rib.okayama-u.ac.jp\/english\/?page_id=169"},"modified":"2026-04-09T09:09:39","modified_gmt":"2026-04-09T00:09:39","slug":"pla-hp","status":"publish","type":"page","link":"https:\/\/www.rib.okayama-u.ac.jp\/english\/research\/pla-hp\/","title":{"rendered":"Plant Light Acclimation Research Group"},"content":{"rendered":"<table class=\"left-image-text\">\n<tbody>\n<tr>\n<td class=\"image-area\"><a href=\"http:\/\/www.rib.okayama-u.ac.jp\/saka\/e\/researchE.html\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7287\" src=\"http:\/\/www.rib.okayama-u.ac.jp\/HP2012\/wp-content\/uploads\/2016\/01\/logoE.png\" alt=\"logoE\" width=\"274\" height=\"65\" \/><\/a><\/td>\n<td style=\"vertical-align: middle;\">\u00a0 <span style=\"color: #0066cc;\"><u><a href=\"http:\/\/www.rib.okayama-u.ac.jp\/saka\/e\/researchE.html\" target=\"_blank\" rel=\"noopener noreferrer\">Link to group homepage<\/a><\/u><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4><span style=\"color: #555555;\"><strong>Faculty staff<\/strong><\/span><\/h4>\n<table width=\"100%\">\n<tbody>\n<tr style=\"background-color: #fafad2;\">\n<td style=\"padding: 3px;\"><\/td>\n<td class=\"image-area\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.rib.okayama-u.ac.jp\/HP2012\/wp-content\/uploads\/2014\/02\/SAKAMOTO_Wataru1.jpg\" alt=\"\" width=\"80\" height=\"100\" \/><\/td>\n<td style=\"padding: 1px;\"><\/td>\n<td style=\"vertical-align: top;\">Prof. Dr. <strong>Wataru SAKAMOTO<\/strong><br \/>\nE-mail\uff1asakaATokayama-u.ac.jp<\/td>\n<td style=\"padding: 20px; vertical-align: top; text-align: right;\"><sub><sup><span style=\"color: #999999;\">(please change AT to @ before sending)<\/span><\/sup><\/sub><\/td>\n<\/tr>\n<tr style=\"background-color: #fafad2;\">\n<td style=\"padding: 3px;\"><\/td>\n<td class=\"image-area\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.rib.okayama-u.ac.jp\/wp-content\/uploads\/2021\/04\/okegawa.png\" alt=\"Sonoda2.jpg\" width=\"80\" height=\"100\" \/><\/td>\n<td style=\"padding: 1px;\"><\/td>\n<td style=\"vertical-align: top;\">Assoc. Prof. Dr.<strong> Yuki OKEGAWA<\/strong><br \/>\nE-mail\uff1aokegawaATokayama-u.ac.jp<\/td>\n<td style=\"padding: 20px; vertical-align: top; text-align: right;\"><sub><sup><span style=\"color: #999999;\">(please change AT to @ before sending)<\/span><\/sup><\/sub><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Lectures: Model Plant Genetics and Breeding, Plant Physiology and Genetics<br \/>\nKeywords: Photosynthesis; Organelle structure and development; Chloroplast; Light<\/p>\n<hr \/>\n<h4><span style=\"color: #555555;\"><strong>Summary of main research topics<\/strong><\/span><\/h4>\n<table class=\"left-image-text\">\n<tbody>\n<tr style=\"background-color: #c5e3bf;\">\n<td style=\"vertical-align: top;\"><\/td>\n<td style=\"padding: 9px; text-align: justify;\"><span style=\"font-size: medium;\"><strong> Photosynthesis and chloroplast biogenesis: Understanding to innovation<\/strong><\/span><br \/>\nOur life on earth cannot continue without the atmospheric environment, which is maintained by oxygenic photosynthesis. Plants perform photosynthesis in chloroplasts, where light energy is converted into chemical energy by a series of electrochemical reactions. In contrast, sessile land plants are exposed incessantly to excess light energy or harsh atmospheric environments that engender \u2018photodamage\u2019. How do plants cope with such photosynthetic inactivation? What are the key elements to maintaining or even maximizing chloroplast functions? Our group studies various aspects of chloroplast development and photosynthesis. Through understanding of the factors involved in photoprotection and chloroplast function, we aim at improving crop productivity against atmospheric stress over the long term.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\">\n<tbody>\n<tr style=\"background-color: #c5e3bf;\">\n<td class=\"image-area\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-7310 aligncenter\" src=\"http:\/\/www.rib.okayama-u.ac.jp\/HP2012\/wp-content\/uploads\/2016\/02\/PLAR.jpg\" alt=\"PLAR\" width=\"448\" height=\"380\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4><span style=\"color: #555555;\"><strong>Latest publications<\/strong><span style=\"font-size: small;\"> (for complete and most current publications visit <a title=\"PLA group\" href=\"http:\/\/www.rib.okayama-u.ac.jp\/saka\/e\/researchE.html\">group pages<\/a>)<strong><br \/>\n<\/strong><\/span><\/span><\/h4>\n<p>\uff081\uff09 Ozawa S.I, Zhang G, Sakamoto W. Dysfunction of Chloroplast Protease Activity Mitigates pgr5 Phenotype in the GreenAlgae Chlamydomonas reinhardtii. Plants (Basel) 13: 606. doi.org\/10.3390\/plants13050606 (2024. 2.)<br \/>\n\uff082\uff09 \u5c0f\u5ddd \u7531\u3000\u30b7\u30ed\u30a4\u30cc\u30ca\u30ba\u30ca\u306eFZL \u30bf\u30f3\u30d1\u30af\u8cea\u306b\u3088\u308b\u8449\u7dd1\u4f53\u819c\u30ea\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u907a\u4f1d\u751f\u7406\u5b66\u7684\u89e3\u6790\uff0e\u535a\u58eb\u5b66\u4f4d\u8ad6\u6587 (\u5ca1\u5c71\u5927\u5b66\uff09\u3000(2024. 3.)<br \/>\n\uff083\uff09 Sakamoto W, Takami T. Plastid Inheritance Revisited: Emerging Role of Organelle DNA Degradation in Angiosperms. Plant Cell Physiol. 65: 484-492. doi.org\/10.1093\/pcp\/pcad104 (2024. 4.)<br \/>\n\uff084\uff09 Kumari P, Matsushima R, Hirayama T, Mikami K. Responses of the marine filamentous red alga \u02bbBangia\u02bc sp. ESS1 to recurrent changes in seawater concentration. Algal Res. 80: 103551. doi.org\/10.1016\/j.algal.2024.103551 (2024. 5.)<br \/>\n\uff085\uff09 Islam M.F, Yamatani H, Takami T, Kusaba M, Sakamoto W. Characterization of organelle DNA degradation mediated by DPD1 exonuclease in the rice genome-edited line. Plant Mol. Biol. 114: 71. doi.org\/10.1007\/s11103-024-01452-x (2024. 6.)<br \/>\n\uff086\uff09 Matsushima R, Hisano H, Kim J.S, McNelly R, Oitome N.F, Seung D, Fujita N, Sato, K. Mutations in starch BRANCHING ENZYME 2a suppress the traits caused by the loss of ISOAMYLASE1 in barley. Theor. Appl. Genet. 137: 212. doi.org\/10.1007\/s00122-024-04725-7 (2024. 8.)<br \/>\n\uff087\uff09 \u52a0\u85e4\u88d5\u4ecb\u30fb\u5742\u672c \u4e98 \u5149\u5408\u6210\u53cd\u5fdc\u306b\u304a\u3051\u308b\u5149\u640d\u50b7\u3068\u4fee\u5fa9\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u89e3\u660e. \u5149\u30a2\u30e9\u30a4\u30a2\u30f3\u30b9 35: 9-12. (2024.9.)<br \/>\n\uff088\uff09 Islam M.F. Studies on the role of organelle DNA degradation mediated by DPD1 nuclease in rice. \u535a\u58eb\u5b66\u4f4d\u8ad6\u6587 (\u5ca1\u5c71\u5927\u5b66)(2024. 9.)<br \/>\n\uff089\uff09 Brunje A, Fussl M, Eirich J, Boyer J, Heinkow P, Neumann U, Konert M, Ivanauskaite A, Seidel J, Ozawa S, Sakamoto W, Meinnel T, Schwarzer D, Mulo P, Giglione C, Finkemeier I. The plastidial protein acetyltransferase GNAT1 forms a complex with GNAT2, yet their interaction is dispensablefor state transitions. Mol. Cell Proteomics. 23: 100850. doi.org\/10.1016\/j.mcpro.2024.100850 (2024. 11.)<\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 Link to group homepage Faculty staff Prof. Dr. Wataru SAKAMOTO E-mail\uff1asakaATokayama-u.ac.jp (please change AT to @ before sending) Assoc. Prof. Dr. Yuki OKEGAWA E-mail\uff1aokegawaATokayama-u.ac.jp (please change AT to @ before sending) Lectures: Model Plant Genetics and Breeding, Plant Physiology and Genetics Keywords: Photosynthesis; Organelle structure and development; Chloroplast; Light Summary of main research topics Photosynthesis and chloroplast biogenesis: Understanding to innovation Our life on earth cannot continue without the atmospheric environment, which is maintained by oxygenic photosynthesis. Plants perform photosynthesis in chloroplasts, where light energy is converted into chemical energy by a series of electrochemical reactions. In contrast, sessile land plants are exposed incessantly to excess light energy or [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":126,"menu_order":101,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-169","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Plant Light Acclimation Research Group - Institute of Plant Science and Resources<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rib.okayama-u.ac.jp\/english\/research\/pla-hp\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Plant Light Acclimation Research Group - Institute of Plant Science and Resources\" \/>\n<meta property=\"og:description\" content=\"\u00a0 Link to group homepage Faculty staff Prof. Dr. Wataru SAKAMOTO E-mail\uff1asakaATokayama-u.ac.jp (please change AT to @ before sending) Assoc. Prof. Dr. Yuki OKEGAWA E-mail\uff1aokegawaATokayama-u.ac.jp (please change AT to @ before sending) Lectures: Model Plant Genetics and Breeding, Plant Physiology and Genetics Keywords: Photosynthesis; Organelle structure and development; Chloroplast; Light Summary of main research topics Photosynthesis and chloroplast biogenesis: Understanding to innovation Our life on earth cannot continue without the atmospheric environment, which is maintained by oxygenic photosynthesis. Plants perform photosynthesis in chloroplasts, where light energy is converted into chemical energy by a series of electrochemical reactions. In contrast, sessile land plants are exposed incessantly to excess light energy or [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rib.okayama-u.ac.jp\/english\/research\/pla-hp\/\" \/>\n<meta property=\"og:site_name\" content=\"Institute of Plant Science and Resources\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-09T00:09:39+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/\",\"url\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/\",\"name\":\"Plant Light Acclimation Research Group - Institute of Plant Science and Resources\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/www.rib.okayama-u.ac.jp\\\/HP2012\\\/wp-content\\\/uploads\\\/2016\\\/01\\\/logoE.png\",\"datePublished\":\"2021-03-24T02:23:18+00:00\",\"dateModified\":\"2026-04-09T00:09:39+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/#primaryimage\",\"url\":\"http:\\\/\\\/www.rib.okayama-u.ac.jp\\\/HP2012\\\/wp-content\\\/uploads\\\/2016\\\/01\\\/logoE.png\",\"contentUrl\":\"http:\\\/\\\/www.rib.okayama-u.ac.jp\\\/HP2012\\\/wp-content\\\/uploads\\\/2016\\\/01\\\/logoE.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/pla-hp\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u30db\u30fc\u30e0\",\"item\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Research\",\"item\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/research\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Plant Light Acclimation Research Group\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/#website\",\"url\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/\",\"name\":\"Institute of Plant Science and Resources\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.rib.okayama-u.ac.jp\\\/english\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Plant Light Acclimation Research Group - Institute of Plant Science and Resources","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.rib.okayama-u.ac.jp\/english\/research\/pla-hp\/","og_locale":"en_US","og_type":"article","og_title":"Plant Light Acclimation Research Group - Institute of Plant Science and Resources","og_description":"\u00a0 Link to group homepage Faculty staff Prof. Dr. Wataru SAKAMOTO E-mail\uff1asakaATokayama-u.ac.jp (please change AT to @ before sending) Assoc. 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