{"doi":"10.1016/j.plaphy.2013.12.002","title":"Chlamydomonas reinhardtii strain CC-124 is highly sensitive to blue light in addition to green and red light in resetting its circadian clock, with the blue-light photoreceptor plant cryptochrome likely acting as negative modulator","abstract":null,"journal":"Plant Physiology and Biochemistry","year":2014,"id":612687,"datarank":0.5101796072493234,"base_score":3.4011973816621555,"endowment":3.4011973816621555,"self_citation_contribution":0.5101796072493234,"citation_network_contribution":0.0,"self_endowment_contribution":0.5101796072493234,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":29,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1577679,"name":"Jonathan Howton","orcid":"0000-0002-5482-2611","position":1,"is_corresponding":false},{"id":49856,"name":"Matthew Young","orcid":null,"position":2,"is_corresponding":false},{"id":900579,"name":"Gavin Davis","orcid":"0000-0002-0654-7918","position":3,"is_corresponding":false},{"id":1577680,"name":"Todd Chandler","orcid":null,"position":4,"is_corresponding":false},{"id":1577681,"name":"Bruce Kessler","orcid":null,"position":5,"is_corresponding":false},{"id":307762,"name":"Claire A. Rinehart","orcid":"0000-0003-0547-0928","position":6,"is_corresponding":false},{"id":933275,"name":"Sigrid Jacobshagen","orcid":null,"position":7,"is_corresponding":false},{"id":1577678,"name":"Jennifer Forbes-Stovall","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Chlamydomonas reinhardtii strain CC-124 is highly sensitive to blue light in addition to green and red light in resetting its circadian clock, with the blue-light photoreceptor plant cryptochrome likely acting as negative modulator","abstract":"The unicellular green alga Chlamydomonas reinhardtii has long served as model organism for studies on the circadian clock. This clock is present in all eukaryotes and some prokaryotes allowing them to anticipate and take advantage of the daily oscillations in the environment. Although much is known about the circadian clock in C. reinhardtii, the photoreceptors mediating entrainment of the clock to the daily changes of light remain obscure. Based on its circadian rhythm of phototaxis as a reporter of the clock's phase, we show here that C. reinhardtii strain CC-124 is highly sensitive to blue light of 440 nm when resetting its circadian clock upon light pulses. Thus, CC-124 differs in this respect from what was previously reported for a cell wall-deficient strain. An action spectrum analysis revealed that CC-124 also responds with high sensitivity to green (540 nm), red (640-660 nm), and possibly UV-A (≤400 nm) light, and therefore shows similarities as well to what has been reported for the cell wall-deficient strain. We also investigated two RNA interference strains with reductions in the level of the blue light photoreceptor plant cryptochrome (CPH1). One of them, the strain with the greater reduction, surprisingly showed an increased sensitivity in clock resetting upon blue light pulses of 440 nm. This increase in sensitivity reverted to wild-type levels when the RNA interference strain reverted to wild-type protein levels. It suggests that plant cryptochrome in C. reinhardtii could function as negative rather than positive modulator of circadian clock resetting.","is_dataset_classified":null,"base_score":3.4011973816621555,"endowment":3.4011973816621555,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"24361506","pmcid":"PMC3938392","openalex_id":"https://openalex.org/W2024349939","authors":[],"funders":[{"funder_name":"NIGMS NIH HHS","grant_id":"R15 GM076079","title":null},{"funder_name":"NIGMS NIH HHS","grant_id":"1R15GM076079-01A1","title":null},{"funder_name":"NIGMS NIH HHS","grant_id":"P20 GM103436","title":null},{"funder_name":"NCRR NIH HHS","grant_id":"P20 RR016481","title":null},{"funder_name":"NCRR NIH HHS","grant_id":"P20 RR16481","title":null}],"total_grants":5,"fwci":4.2847,"citation_percentile":0.93335608,"influential_citations":0,"citation_trend":[{"year":2014,"count":3},{"year":2015,"count":4},{"year":2016,"count":3},{"year":2017,"count":5},{"year":2018,"count":2},{"year":2020,"count":1},{"year":2021,"count":1},{"year":2022,"count":2},{"year":2023,"count":5},{"year":2024,"count":1},{"year":2025,"count":2}],"oa_status":"green","license":null,"oa_locations":[{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3938392","host_type":"repository"},{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3938392","host_type":"repository"},{"url":"https://api.elsevier.com/content/article/PII:S0981942813004269?httpAccept=text/xml","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S0981942813004269?httpAccept=text/plain","host_type":"publisher"},{"url":"https://doi.org/10.1016/j.plaphy.2013.12.002","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/24361506","host_type":"repository"}],"fields_of_study":["Light effects on plants","Photosynthetic Processes and Mechanisms","Plant Molecular Biology Research"],"mesh_terms":["Circadian Rhythm","Color","Light","Photoreceptor Cells","Species Specificity","Chlamydomonas reinhardtii","Cryptochromes","Circadian Clocks"],"keywords":["Chlamydomonas reinhardtii","Cryptochrome","Circadian clock","Circadian rhythm","Phototaxis","Chlamydomonas","Biology","Biophysics","Cell biology","Blue light","CLOCK","Entrainment (biomusicology)","Action spectrum","Botany","Biochemistry","Rhythm","Gene","Optics","Neuroscience","Mutant","Internal medicine","RNA interference","RNAi","CT","entrainment","Resetting","1/24Th Of A Circadian Rhythm's Free-running Period","Cc-124","Ct Unit","Circadian Time Or Time Under Free-running Conditions With Ct 0 Denoting The Start Of Subjective Day And Ct 12 The Start Of Subjective Night"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Life in Land"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[{"name":"gen"}],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-02T04:34:06.524295Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}