{"acknowledged_ssus":[{"_id":"Bio"},{"_id":"LifeSc"},{"_id":"SSU"}],"year":"2022","keyword":["high ambient temperature","auxin","PINs","Zinc-Finger proteins","thermomorphogenesis","stress"],"file_date_updated":"2023-09-09T22:30:03Z","acknowledgement":"I would like to acknowledge ISTA and all the people from the Scientific Service Units and at ISTA, in particular Dorota Jaworska for excellent technical and scientific support as well as ÖAW for funding my research for over 3 years (DOC ÖAW Fellowship PR1022OEAW02).","project":[{"_id":"2685A872-B435-11E9-9278-68D0E5697425","name":"Hormonal regulation of plant adaptive responses to environmental signals"}],"ddc":["580"],"author":[{"full_name":"Artner, Christina","id":"45DF286A-F248-11E8-B48F-1D18A9856A87","last_name":"Artner","first_name":"Christina"}],"has_accepted_license":"1","doi":"10.15479/at:ista:11879","page":"128","publication_identifier":{"issn":["2663-337X"],"isbn":["978-3-99078-022-0"]},"citation":{"ieee":"C. Artner, “Modulation of auxin transport via ZF proteins adjust plant response to high ambient temperature,” Institute of Science and Technology Austria, 2022.","mla":"Artner, Christina. <i>Modulation of Auxin Transport via ZF Proteins Adjust Plant Response to High Ambient Temperature</i>. Institute of Science and Technology Austria, 2022, doi:<a href=\"https://doi.org/10.15479/at:ista:11879\">10.15479/at:ista:11879</a>.","short":"C. Artner, Modulation of Auxin Transport via ZF Proteins Adjust Plant Response to High Ambient Temperature, Institute of Science and Technology Austria, 2022.","apa":"Artner, C. (2022). <i>Modulation of auxin transport via ZF proteins adjust plant response to high ambient temperature</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/at:ista:11879\">https://doi.org/10.15479/at:ista:11879</a>","ista":"Artner C. 2022. Modulation of auxin transport via ZF proteins adjust plant response to high ambient temperature. Institute of Science and Technology Austria.","chicago":"Artner, Christina. “Modulation of Auxin Transport via ZF Proteins Adjust Plant Response to High Ambient Temperature.” Institute of Science and Technology Austria, 2022. <a href=\"https://doi.org/10.15479/at:ista:11879\">https://doi.org/10.15479/at:ista:11879</a>.","ama":"Artner C. Modulation of auxin transport via ZF proteins adjust plant response to high ambient temperature. 2022. doi:<a href=\"https://doi.org/10.15479/at:ista:11879\">10.15479/at:ista:11879</a>"},"_id":"11879","language":[{"iso":"eng"}],"date_created":"2022-08-17T07:58:53Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version","oa":1,"publisher":"Institute of Science and Technology Austria","status":"public","title":"Modulation of auxin transport via ZF proteins adjust plant response to high ambient temperature","alternative_title":["ISTA Thesis"],"degree_awarded":"PhD","day":"17","type":"dissertation","file":[{"file_id":"11907","file_size":11113608,"date_created":"2022-08-17T12:08:49Z","date_updated":"2023-09-09T22:30:03Z","content_type":"application/pdf","access_level":"open_access","creator":"cartner","file_name":"ChristinaArtner_PhD_Thesis_2022.pdf","embargo":"2023-09-08","checksum":"a2c2fdc28002538840490bfa6a08b2cb","relation":"main_file"},{"relation":"source_file","checksum":"66b461c074b815fbe63481b3f46a9f43","file_name":"ChristinaArtner_PhD_Thesis_2022.7z","embargo_to":"open_access","creator":"cartner","access_level":"closed","content_type":"application/octet-stream","date_updated":"2023-09-09T22:30:03Z","file_size":19097730,"date_created":"2022-08-17T12:08:59Z","file_id":"11908"}],"date_updated":"2023-09-09T22:30:04Z","supervisor":[{"id":"38F4F166-F248-11E8-B48F-1D18A9856A87","full_name":"Benková, Eva","last_name":"Benková","first_name":"Eva","orcid":"0000-0002-8510-9739"}],"month":"08","article_processing_charge":"No","date_published":"2022-08-17T00:00:00Z","publication_status":"published","abstract":[{"text":"As the overall global mean surface temperature is increasing due to climate change, plant\r\nadaptation to those stressful conditions is of utmost importance for their survival. Plants are\r\nsessile organisms, thus to compensate for their lack of mobility, they evolved a variety of\r\nmechanisms enabling them to flexibly adjust their physiological, growth and developmental\r\nprocesses to fluctuating temperatures and to survive in harsh environments. While these unique\r\nadaptation abilities provide an important evolutionary advantage, overall modulation of plant\r\ngrowth and developmental program due to non-optimal temperature negatively affects biomass\r\nproduction, crop productivity or sensitivity to pathogens. Thus, understanding molecular\r\nprocesses underlying plant adaptation to increased temperature can provide important\r\nresources for breeding strategies to ensure sufficient agricultural food production.\r\nAn increase in ambient temperature by a few degrees leads to profound changes in organ growth\r\nincluding enhanced hypocotyl elongation, expansion of petioles, hyponastic growth of leaves and\r\ncotyledons, collectively named thermomorphogenesis (Casal & Balasubramanian, 2019). Auxin,\r\none of the best-studied growth hormones, plays an essential role in this process by direct\r\nactivation of transcriptional and non-transcriptional processes resulting in elongation growth\r\n(Majda & Robert, 2018).To modulate hypocotyl growth in response to high ambient temperature\r\n(hAT), auxin needs to be redistributed accordingly. PINs, auxin efflux transporters, are key\r\ncomponents of the polar auxin transport (PAT) machinery, which controls the amount and\r\ndirection of auxin translocated in the plant tissues and organs(Adamowski & Friml, 2015). Hence,\r\nPIN-mediated transport is tightly linked with thermo-morphogenesis, and interference with PAT\r\nthrough either chemical or genetic means dramatically affecting the adaptive responses to hAT.\r\nIntriguingly, despite the key role of PIN mediated transport in growth response to hAT, whether\r\nand how PINs at the level of expression adapt to fluctuation in temperature is scarcely\r\nunderstood.\r\nWith genetic, molecular and advanced bio-imaging approaches, we demonstrate the role of PIN\r\nauxin transporters in the regulation of hypocotyl growth in response to hAT. We show that via\r\nadjustment of PIN3, PIN4 and PIN7 expression in cotyledons and hypocotyls, auxin distribution is modulated thereby determining elongation pattern of epidermal cells at hAT. Furthermore, we\r\nidentified three Zinc-Finger (ZF) transcription factors as novel molecular components of the\r\nthermo-regulatory network, which through negative regulation of PIN transcription adjust the\r\ntransport of auxin at hAT. Our results suggest that the ZF-PIN module might be a part of the\r\nnegative feedback loop attenuating the activity of the thermo-sensing pathway to restrain\r\nexaggerated growth and developmental responses to hAT.","lang":"eng"}],"department":[{"_id":"GradSch"},{"_id":"EvBe"}]}