Recent Posts

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…