دورية أكاديمية
A combination of plasma membrane sterol biosynthesis and autophagy is required for shade-induced hypocotyl elongation.
| العنوان: | A combination of plasma membrane sterol biosynthesis and autophagy is required for shade-induced hypocotyl elongation. |
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| المؤلفون: | Ince, Yetkin Çaka, Krahmer, Johanna, Fiorucci, Anne-Sophie, Trevisan, Martine, Galvão, Vinicius Costa, Wigger, Leonore, Pradervand, Sylvain, Fouillen, Laetitia, Van Delft, Pierre, Genva, Manon, Mongrand, Sebastien, Gallart-Ayala, Hector, Ivanisevic, Julijana, Fankhauser, Christian |
| المصدر: | Nature Communications, 13 (1), 5659 (2022-10-10) |
| بيانات النشر: | Nature Research, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Arabidopsis Proteins, Lipids, Sterols, Phytochrome, Carbon, Autophagy/genetics, Carbon/metabolism, Cell Membrane/metabolism, Gene Expression Regulation, Plant, Hypocotyl/genetics, Light, Sterols/metabolism, Arabidopsis/metabolism, Arabidopsis Proteins/genetics, Arabidopsis Proteins/metabolism, Phytochrome/metabolism, Arabidopsis, Autophagy, Cell Membrane, Hypocotyl, Chemistry (all), Biochemistry, Genetics and Molecular Biology (all), Multidisciplinary, Physics and Astronomy (all), General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry, Life sciences, Biochemistry, biophysics & molecular biology, Sciences du vivant, Biochimie, biophysique & biologie moléculaire |
| الوصف: | Plant growth ultimately depends on fixed carbon, thus the available light for photosynthesis. Due to canopy light absorption properties, vegetative shade combines low blue (LB) light and a low red to far-red ratio (LRFR). In shade-avoiding plants, these two conditions independently trigger growth adaptations to enhance light access. However, how these conditions, differing in light quality and quantity, similarly promote hypocotyl growth remains unknown. Using RNA sequencing we show that these two features of shade trigger different transcriptional reprogramming. LB induces starvation responses, suggesting a switch to a catabolic state. Accordingly, LB promotes autophagy. In contrast, LRFR induced anabolism including expression of sterol biosynthesis genes in hypocotyls in a manner dependent on PHYTOCHROME-INTERACTING FACTORs (PIFs). Genetic analyses show that the combination of sterol biosynthesis and autophagy is essential for hypocotyl growth promotion in vegetative shade. We propose that vegetative shade enhances hypocotyl growth by combining autophagy-mediated recycling and promotion of specific lipid biosynthetic processes. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501Test article peer reviewed |
| اللغة: | English |
| العلاقة: | https://www.nature.com/articles/s41467-022-33384-9.pdfTest; urn:issn:2041-1723 |
| DOI: | 10.1038/s41467-022-33384-9 |
| الوصول الحر: | https://orbi.uliege.be/handle/2268/302463Test |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2Test info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsorb.302463 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1038/s41467-022-33384-9 |
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