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| 1 | PCH1 and PCHL Directly Interact with PIF1,Promote Its Degradation,and Inhibit Its Transcriptional Function during Photomorphogenesis显示文摘PHOTOPERIODIC CONTROL OF HYPOCOTYL 1(PCH1)and PCH1-LIKE(PCHL)were shown to directly bind to phytochrome B(phyB)and suppress phyB thermal reversion,resulting in plants with dramatically enhanced light sensitivity.Here,we show that PCH1 and PCHL also positively regulate various light responses,including seed germination,hypocotyl gravitropism,and chlorophyll biosynthesis,by physically interacting with PHYTOCHROME INTERACTING FACTOR 1(PIF1)and CONSTITUTIVE PHOTOMORPHO-GENIC 1(COP1).PCH1 and PCHL interact with PIF1 both in the dark and light,and regulate PIF1 abundance.Moreover,PCH1 and PCHL facilitate the physical interaction between phyB and PIF1 in vivo to promote the light-induced degradation of PIF1.PCH1 and PCHL also inhibit the DNA-binding ability of PIF1 to negatively regulate the expressions of PIF1 target genes.In addition,PCH1 and PCHL interact with COP1 and undergo degradation through the 26S proteasome pathway in the dark.Consistently,pch1 suppresses cop1 phenotype in darkness.Collectively,our study reveals a novel mechanism by which PCH1 and PCHL regulate diverse light responses not only by stabilizing phyB Pfrform but also by directly interacting with PIF1 and COP1,providing a molecular understanding of the control of hypocotyl growth by these proteins. | Mei-Chun Cheng Beatrix Enderle Praveen Kumar Kathare Rafya Islam Andreas Hiltbrunner Enamul Huq | 2020 | Molecular Plant2020，13，3： | 3 |
| 2 | Arabidopsis FHY1 and FHY1-LIKE Are Not Required for Phytochrome A Signal Transduction in the Nucleus显示文摘Photoreceptors of the phytochrome family control a multitude of responses in plants.Phytochrome A(phyA)is essential for far-red light perception,which is important for germination and seedling establishment in strong canopy shade.Translocation of phyA from the cytosol into nucleus is a key step in farred light signaling and requires FAR-RED ELONGATED HYPOCOTYL 1(FHY1)and FHY1-LIKE(FHL).FHY1/FHL bind to phyA downstream signaling components.Therefore,it has been suggested that FHY1/FHL also have a function in assembling phyA transcription factor complexes in the nucleus.Yet,in this study,we show that constitutively nuclear-localized phyA is active in the absence of FHY1 and FHL.Furthermore,an artificial FHY1,consisting of an SV40 NLS,a phyA binding site,and a YFP tag as spacer between them,complements the fhy1-3 fhl-1 double mutant.These findings show that FHY1 and FHL are not required for phyA downstream signaling in the nucleus.However,we found that lines expressing phyA-NLS-YFP are hypersensitive to red and far-red light and that slightly increased levels of constitutively nuclear-localized phyA result in photomorphogenic development in the dark.Thus,restricting phyA to the cytosol and inducing nuclear transport in light by interaction with FHY1/FHL might be important to suppress photomorphogenesis in the dark. | Chiara Menon Cornelia Klose Andreas Hiltbrunner | 2020 | Plant Communications2020，1，2： | 2 |
| 3 | Effects of row spacing and liquid manure on directly drilled winter wheat in organic farming显示文摘 | Hiltbrunner J Liedgens M Stamp P | | 0，，04： | 1 |
| 4 | FHY1 and FHL act together to mediate nuclear accumulation of the phytochrome A photoreceptor显示文摘 | Hiltbrunner A Tscheuschler A Viczian A | | 0，，8： | 1 |
| 5 | Potentiating antitumor immunity with αGC-loaded exosomes显示文摘 | Ulf Gehrmann Stefanie Hiltbrunner Tanja N?slund Susanne Gabrielsson | 2013 | OncoImmunology2013，，10： | 1 |
| 6 | Response of weed communities to legume living mulches in winter wheat 显示文摘 | Hiltbrunner J Jeanneret P Liedgens M | 2007 | Agron- omy & Crop Science2007，193，2： | 1 |
| 7 | Fine root responses of mature deciduous forest trees to free air carbon dioxide enrichment 显示文摘 | Martin Bader Erika Hiltbrunner Christian Korner | 2009 | Functional Ecology2009，23，5： | 1 |
| 8 | Soil warming alters microbial substrate use in alpine soils显示文摘 | Streit K Hagedorn F Hiltbrunner D | 2014 | Global Change Biology2014，20，4： | 1 |
| 9 | Are seeding densities an opportunity to increase grain yield of winter wheat in a living mulch of white clover 显示文摘 | Hiltbrunner J Streit B Liedgens M | 2007 | Field Crops Research2007，102，： | 1 |
| 10 | FHY1 mediates nuclear import of the lightactivated phytochrome A photoreceptor 显示文摘 | Genoud T Schweizer F Tscheuschler A Debrieux D Casal J J Sch?fer E Hiltbrunner A Fankhauser C | 2008 | PLoS Genetics2008，4，10： | 1 |
| 11 | Are see- ding densities an opportunity to increase grain yield of win- ter wheat in a living mulch of white clover? 显示文摘 | HILTBRUNNER J STREIT B LIEDGENS M | 2007 | Field Crop Res2007，102，： | 1 |
| 12 | Are seeding densities an opportunity to increase grain yield of winter wheat in a living mulch of white clover?显示文摘 | Hiltbrunner J Streit B Liedgens M | 2007 | Field Crops Research2007，102，3： | 1 |
| 13 | Assessment of land cover changes and spatial drivers behind loss of permanent meadows in the lowlands of Italian Alps显示文摘 | Monteiro A T Fava F Hiltbrunner E | 2011 | Landscape and urban planning2011，100，3： | 1 |
| 14 | Are seeding densities an opportunity to increase grain yield of winter wheat in a living mulch of white clover? 显示文摘 | HILTBRUNNER J STREIT B LIEDGENS M | 2007 | Field Crops Re- search2007，102，： | 1 |
| 15 | Nuclear accumulation of the phytochrome A photoreceptor requires FHY 1 显示文摘 | Hiltbrunner A Viczihn A Bury E | 2005 | Curr Biol2005，15，23： | 1 |
| 16 | Are seeding densities an opportunity to increase grain yield of winter wheat in a living mulch of white clover? 显示文摘 | Hiltbrunner J Streit B Liedgens M | 2007 | Field Crops Res2007，102，： | 1 |
| 17 | FHY1 and FHL act together to mediate nuclear accumulation of the phytochrome A photoreceptor 显示文摘 | Hiltbrunner A Tscheuschler A Viczian A | 2006 | Plant Cell Physiol2006，47，8： | 1 |
| 18 | Are seeding densities an opportunity to increase grain yield of winter wheat in a living mulch of white clover? 显示文摘 | Hiltbrunner J Streit B Liedgens M | 2007 | Field Crops Research2007，102，16： | 1 |
| 19 | Relief effects for passive microwave remote sensing显示文摘 | MATZLER C HILTBRUNNER D STANDLEY A | 2000 | International Journal of Remote Sensing2000，21，12： | 1 |
| 20 | Packed rectifying column with maldistribution显示文摘 | Huber M Hiltbrunner R | 1966 | Chem Eng Sci1966，21，： | 1 |
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