Recent Posts

Energy vs growth: Plant nutritional decisions are made by TOR

O’Leary et al. show that the TOR signalling pathway in plants responds to amino acid levels by eliciting regulatory effects on respiratory energy metabolism at night, uniting a hallmark mechanism of TOR regulation across eukaryotes. Plant Cell https://doi.org/10.1105/tpc.19.00157 By Brendan O’Leary…

Taking Down Plant Communication Channels to Invade

Aung et al. reveal that pathogenic bacteria target plant plasmodesmata to colonize and invade surrounding tissues. Plant Cell https://doi.org/10.1105/tpc.19.00707 By Kyaw Aung and Sheng Yang He   Background: Multicellular organisms like animals and plants host a multitude of microorganisms.…

AvrRpm1, a 28-year Old Mystery Solved

Reddit et al. show that an effector protein from a pathogen modifies a host factor by ADP ribosylation, thereby activating defenses. The Plant Cell https://doi.org/10.1105/tpc.19.00020  Background: To protect themselves against disease, plants employ a family of intracellular receptors called…

How plants tolerate too-close vegetation - plants get tolerant to other plants

Molina-Contreras et al. show how differences in photoreceptors produce the differing shade responses of Arabidopsis and Cardamine. https://doi.org/10.1105/tpc.19.00275  by Sandi PAULIŠIĆ 1 and Jaime F. MARTINEZ-GARCIA 1,2 1, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB. 2,…

A membrane-bound cellulase in time and space

Nagashima et al. investigate molecular mechanisms for the sorting of a membrane protein KORRIGAN 1 (KOR1) in plant cells. Plant Cell https://doi.org/10.1105/tpc.19.00714 By Y. Nagashima1, and H. Koiwa1,2 1Vegetable and Fruit Improvement Center and Department of Horticultural Sciences, Texas…

Casting a Network to Capture Vascular Development

Smit et al. uncover a feed-forward loop that controls vascular development in Arabidopsis. Plant Cell https://doi.org/10.1105/tpc.19.00562 By Margot E. Smit1, Siobhán M. Brady2, and J. Peter Etchells3 1 Stanford University 2 UC Davis 3 Durham University  Background: Vascular tissues…

The spikelet, a different “flower” in rice

Descriptive paragraph. Plant Cell https://doi.org/10.1105/tpc.18.00682 By Hui Zhuang and Yunfeng Li Background: The spikelet, often mistaken for a “flower”, is actually an inflorescence unit and can produce one or more florets in some species of grass. This implies that it could be possible…

Mightier than Muscle: A Near-atomic View of Pollen Actin Filaments

Beyond its well-known role in muscle contraction, the cytoskeletal component actin participates in many critical cellular processes. Globular actin polymerizes into thin, flexible filaments that assemble into dynamic higher-order structures, such as bundles and networks. In addition to providing mechanical…

A Key Upstream Regulator of the Iron Homeostasis Regulatory Network

Gao et al. identify a transcription factor that regulates the expression of the large majority of genes involved in the iron homeostasis regulatory cascade. Plant Cell https://doi.org/10.1105/tpc.19.00541 By Fei Gao, Florence Vignols, and Christian Dubos BPMP, Univ Montpellier, CNRS, INRA, SupAgro,…