PID/WAG-mediated phosphorylation of PIN3 mediates polarity switches during gravitropism (Sci Reports)
Plant Science Research WeeklyAuxin distribution depends on the polar localization of PIN-FORMED or PIN proteins. Based on different development and environmental stimuli, PIN proteins switch polarity to redirect the auxin flux. Additionally, phosphorylation of PIN is required for its function. For instance, PIN3 phosphorylation…
A Golgi-released subpopulation of the trans-Golgi network mediates protein secretion in Arabidopsis ($)
Plant Science Research WeeklyThe plant trans-Golgi network (TGN) plays the role of early endosomes and acts as hub for the both secretory and vacuolar trafficking pathways. Two types of TGN, GA-TGN (Golgi-associated TGN) and GI-TGN (Golgi-released independent TGN), have been observed in plants. Here, Uemura et al. explore the cellular…
A regulatory module controlling stress-induced cell cycle arrest in Arabidopsis (bioRxiv)
Plant Science Research WeeklyProgression of the cell cycle central to growth, but during stress conditions plants arrest cell cycle progression to enable the organism to survive. SUPPRESSOR OF GAMMA RESPONSE 1 (SOG1), a plant-specific NAC-type transcription factor, regulates the expression of almost all genes induced by double-strand…
Interplay of auxin and MEcPP regulates adaptive growth (Nature Comms)
Plant Science Research WeeklyMEcPP, methylerythritol cyclophosphate, is an essential bifunctional plastidial metabolite that serves as a precursor of isoprenoids and is produced by the plastidial methylerythritol phosphate (MEP) pathway. Jiang et al. demonstrated that MEcPP controls adaptive growth by regulating auxin responses…
Recognizing Plant Cell first authors: Liyun Jiang
The Plant Cell, The Plant Cell: Author ProfilesLiyun Jiang, first author of The APETALA2-like transcription factor SUPERNUMRARY BRACT controls rice seed shattering and seed size
Current Position: Ph.D candidate, Department of Plant Genetics and Breeding, China Agricultural University, Beijing, China
Education: 2012–B.S., Agronomy, Jiangxi Agricultural…
A Root Endoploidy Map: The Spatial and Temporal Arrangement of Dividing and Endocycling Cells
Research, The Plant Cell, The Plant Cell: In a NutshellBhosale et al. computationally predicted and experimentally verified the DNA ploidy level of all cells in the Arabidopsis root tip, revealing that endoreplication is spatiotemporally regulated, stress-responsive, and likely important to coordinate cell expansion with changes in cell wall structure. Plant…
OsELF3 Rhythmicity Affects Flowering under Long-day Conditions
Research, The Plant Cell, The Plant Cell: In a NutshellOsELF3 Rhythmicity Affects Flowering under Long-day Conditions
Zhu et al. identify OsELF3 ubiquitination and degradation by HAF1 in rice. The Plant Cell (2018). https://doi.org/10.1105/tpc.18.00653
By Changyin Wu
Background: The photoperiodic response is one of the most important factors determining…
Ironing Out the Wrinkles in Fatty Acid Synthesis
Research, The Plant Cell, The Plant Cell: In a NutshellZhai et al. show that Trehalose 6-phosphate positively regulates fatty acid synthesis by stabilizing WRINKLED1. Plant Cell. https://doi.org/10.1105/tpc.18.00521
Background: In plants, oil synthesis is under the control of an “on switch” or transcription factor called WRINKLED1, that binds to DNA…
A Multi-Player Club for Maize Storage Protein Regulation
Research, The Plant Cell, The Plant Cell: In a NutshellLi et al. take a new approach to identify a transcription factor that regulates γ-zein gene expression during maize endosperm development together with other transcription factors.
By Chaobin Li and Rentao Song, China Agricultural University
Background: Zeins are the most abundant storage proteins…