Unregulated Sphingolipid Biosynthesis in Arabidopsis ORM Mutants
Gonzalez Solis et al. describe the metabolic, cellular, and physiological consequences of the complete loss of regulation of sphingolipid biosynthesis. Plant Cell https://doi.org/10.1105/tpc.20.00015
By Ariadna Gonzalez Solis and Edgar B. Cahoon
Background: Glycosphingolipids are molecules…
Brassinosteroids Promote Greening of Etiolated Seedlings
Wang et al. demonstrate that BRs play important roles in seedling development and survival during the initial emergence of seedlings from subterranean darkness into sunlight. The Plant Cell (2020) https://doi.org/10.1105/tpc.20.00057.
By Lingyan Wang,Yanchen Tian, Wen Shi, Min Fan and Ming-Yi Bai,…
2-in-1-GEFIs: Biosensors for two plant signals at one time
Waadt et al. use a suite of genetically encoded biosensors to monitor signaling compound concentration changes and how they overlap in time and space. Plant Cell https://doi.org/10.1105/tpc.19.00892
By Rainer Waadt
Background: To survive, plants need to sense the environment and adjust their growth…
How a motor keeps its track from wandering
Ganguly et al. establish that a transporter protein helps stabilize cell wall deposition sites.
Plant Cell https://doi.org/10.1105/tpc.19.00700
By Anindya Gangulya and Ram Dixit
Department of Biology and Center for Engineering Mechanobiology, Washington University in St. Louis, MO 63130, USA
a…
It takes two to tango: two GNOMs have to activate ARF1 together
Brumm et al. investigate how the protein GNOM activates dimers of the small GTPase ARF1 and inserts them very close to each other during vesicle formation. The Plant Cell (2020) https://doi.org/10.1105/tpc.20.00240
By Sabine Brumm 1,2 and Gerd Jürgens 1, ZMBP, University of Tübingen (1), Sainsbury…
How Do Plants Adapt to Dark and Bright Light Conditions?
Kimura et al. illuminate a molecular mechanism to allow germinating seedlings of Arabidopsis thaliana to adapt to dark and bright light conditions during hypocotyl phototropism. Plant Cell https://doi.org/10.1105/tpc.19.00926
By Taro Kimura and Tatsuya Sakai; Graduate School of Science and Technology,…
Calcium signaling in senescence
Durian et al. searched for phosphorylation substrates of Arabidopsis CALCIUM DEPENDENT PROTEIN KINASE1 and found that it phosphorylates ORE1, a master regulator of senescence, demonstrating a link between calcium signaling and cell death. Plant Cell https://doi.org/10.1105/tpc.19.00810
By Guido…
Cold-responsive Regulatory DNA Landscapes and Regulatory Networks in Grasses
Han et al. uncover regulatory DNA landscapes in root, stem, and leaf tissues of multiple grasses. Plant Cell https://doi.org/10.1105/tpc.19.00716
By Kai Wang and Jinlei Han
Fujian Agriculture and Forestry University
Background: Low temperature is a major environmental stress that affects…
Glutelin mRNAs are transported on endosomes
Tian et al. identify the factors mediating localization of specific mRNAs in developing rice endosperm cells. Plant Cell https://doi.org/10.1105/tpc.20.00111
by Li Tian and Thomas W. Okita
Background: Localization of mRNAs is a universal mechanism to efficiently drive protein targeting in eukaryotes…