Search Results - "Konrad, Kai R."

Pollen tube NAD(P)H oxidases act as a speed control to dampen growth rate oscillations during polarized cell growth by Lassig, Roman, Gutermuth, Timo, Bey, Till D, Konrad, Kai R, Romeis, Tina

“…Reactive oxygen species (ROS) produced by NAD(P)H oxidases play a central role in plant stress responses and development. To better understand the function of…”
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High V-PPase activity is beneficial under high salt loads, but detrimental without salinity by Graus, Dorothea, Konrad, Kai R, Bemm, Felix, Patir Nebioglu, Meliha Görkem, Lorey, Christian, Duscha, Kerstin, Güthoff, Tilman, Herrmann, Johannes, Ferjani, Ali, Cuin, Tracey Ann, Roelfsema, M Rob G, Schumacher, Karin, Neuhaus, H Ekkehard, Marten, Irene, Hedrich, Rainer

“…The membrane-bound proton-pumping pyrophosphatase (V-PPase), together with the V-type H+-ATPase, generates the proton motive force that drives vacuolar…”
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Calcium regulation of tip growth: new genes for old mechanisms by Konrad, Kai R, Wudick, Michael M, Feijó, José A

“…► Tip-growing cells evolved as integrators of extracellular cues in the form of differential growth. ► The calcium ion (Ca 2+) is one of the most important…”
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Optogenetic control of plant growth by a microbial rhodopsin by Zhou, Yang, Ding, Meiqi, Gao, Shiqiang, Yu-Strzelczyk, Jing, Krischke, Markus, Duan, Xiaodong, Leide, Jana, Riederer, Markus, Mueller, Martin J., Hedrich, Rainer, Konrad, Kai R., Nagel, Georg

“…While rhodopsin-based optogenetics has revolutionized neuroscience 1 , 2 , poor expression of opsins and the absence of the essential cofactor all- trans…”
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Extending the Anion Channelrhodopsin-Based Toolbox for Plant Optogenetics by Zhou, Yang, Ding, Meiqi, Duan, Xiaodong, Konrad, Kai R, Nagel, Georg, Gao, Shiqiang

“…Optogenetics was developed in the field of neuroscience and is most commonly using light-sensitive rhodopsins to control the neural activities. Lately, we have…”
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The use of voltage‐sensitive dyes to monitor signal‐induced changes in membrane potential–ABA triggered membrane depolarization in guard cells by Konrad, Kai R., Hedrich, Rainer

“…Summary The plant membrane potential reports on the activity of electrogenic plasma membrane transport processes. The membrane potential is widely used to…”
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Transporter networks can serve plant cells as nutrient sensors and mimic transceptor-like behavior by Dreyer, Ingo, Li, Kunkun, Riedelsberger, Janin, Hedrich, Rainer, Konrad, Kai R., Michard, Erwan

“…Sensing of external mineral nutrient concentrations is essential for plants to colonize environments with a large spectrum of nutrient availability. Here, we…”
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Cytosolic abscisic acid activates guard cell anion channels without preceding Ca2+ signals by Levchenko, V, Konrad, K.R, Dietrich, P, Roelfsema, M.R.G, Hedrich, R

“…The phytohormone abscisic acid (ABA) reports on the water status of the plant and induces stomatal closure. Guard cell anion channels play a central role in…”
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Ca²⁺-Dependent and -Independent Abscisic Acid Activation of Plasma Membrane Anion Channels in Guard Cells of Nicotiana tabacum by Marten, Holger, Konrad, Kai R, Dietrich, Petra, Roelfsema, M. Rob G, Hedrich, Rainer

“…Drought induces stomatal closure, a response that is associated with the activation of plasma membrane anion channels in guard cells, by the phytohormone…”
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Arabidopsis INOSITOL TRANSPORTER4 Mediates High-Affinity H⁺ Symport of Myoinositol across the Plasma Membrane by Schneider, Sabine, Schneidereit, Alexander, Konrad, Kai R, Hajirezaei, Mohammad-Reza, Gramann, Monika, Hedrich, Rainer, Sauer, Norbert

“…Four genes of the Arabidopsis (Arabidopsis thaliana) monosaccharide transporter-like superfamily share significant homology with transporter genes previously…”
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K+ and pH homeostasis in plant cells is controlled by a synchronized K+/H+ antiport at the plasma and vacuolar membrane by Li, Kunkun, Grauschopf, Christina, Hedrich, Rainer, Dreyer, Ingo, Konrad, Kai R.

“…Summary Stomatal movement involves ion transport across the plasma membrane (PM) and vacuolar membrane (VM) of guard cells. However, the coupling mechanisms of…”
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Optogenetic Methods in Plant Biology by Konrad, Kai R, Gao, Shiqiang, Zurbriggen, Matias D, Nagel, Georg

“…Optogenetics is a technique employing natural or genetically engineered photoreceptors in transgene organisms to manipulate biological activities with light…”
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The GABA shunt contributes to ROS homeostasis in guard cells of Arabidopsis by Xu, Bo, Feng, Xueying, Piechatzek, Adriane, Zhang, Shuqun, Konrad, Kai R., Kromdijk, Johannes, Hedrich, Rainer, Gilliham, Matthew

“…Summary γ‐Aminobutyric acid (GABA) accumulates rapidly under stress via the GABA shunt pathway, which has been implicated in reducing the accumulation of…”
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Advances and prospects of rhodopsin-based optogenetics in plant research by Zhou, Yang, Ding, Meiqi, Nagel, Georg, Konrad, Kai R, Gao, Shiqiang

“…Microbial rhodopsins have advanced optogenetics since the discovery of channelrhodopsins almost two decades ago. During this time an abundance of microbial…”
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Imaging of plant calcium-sensor kinase conformation monitors real time calcium-dependent decoding in planta by Liese, Anja, Eichstädt, Bernadette, Lederer, Sarah, Schulz, Philipp, Oehlschläger, Jan, Matschi, Susanne, Feijó, José A, Schulze, Waltraud X, Konrad, Kai R, Romeis, Tina

“…A FRET-based reporter that visualizes the conformational changes in calcium-dependent protein kinases (CDPKs/CPKs) makes calcium sensing in planta visible…”
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Probing plant signal processing optogenetically by two channelrhodopsins by Ding, Meiqi, Zhou, Yang, Becker, Dirk, Yang, Shang, Krischke, Markus, Scherzer, Sönke, Yu-Strzelczyk, Jing, Mueller, Martin J., Hedrich, Rainer, Nagel, Georg, Gao, Shiqiang, Konrad, Kai R.

“…Early plant responses to different stress situations often encompass cytosolic Ca 2+ increases, plasma membrane depolarization and the generation of reactive…”
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Acidosis-induced activation of anion channel SLAH3 in the flooding-related stress response of Arabidopsis by Lehmann, Julian, Jørgensen, Morten E., Fratz, Stefanie, Müller, Heike M., Kusch, Jana, Scherzer, Sönke, Navarro-Retamal, Carlos, Mayer, Dominik, Böhm, Jennifer, Konrad, Kai R., Terpitz, Ulrich, Dreyer, Ingo, Mueller, Thomas D., Sauer, Markus, Hedrich, Rainer, Geiger, Dietmar, Maierhofer, Tobias

“…Plants, as sessile organisms, gained the ability to sense and respond to biotic and abiotic stressors to survive severe changes in their environments. The…”
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Tobacco leaf tissue rapidly detoxifies direct salt loads without activation of calcium and SOS signaling by Graus, Dorothea, Li, Kunkun, Rathje, Jan M., Ding, Meiqi, Krischke, Markus, Müller, Martin J., Cuin, Tracey Ann, Al‐Rasheid, Khaled A. S., Scherzer, Sönke, Marten, Irene, Konrad, Kai R., Hedrich, Rainer

“…Summary Salt stress is a major abiotic stress, responsible for declining agricultural productivity. Roots are regarded as hubs for salt detoxification,…”
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Molecular and electrophysiological characterization of anion transport in Arabidopsis thaliana pollen reveals regulatory roles for pH, Ca2+ and GABA by Domingos, Patrícia, Dias, Pedro N., Tavares, Bárbara, Portes, Maria Teresa, Wudick, Michael M., Konrad, Kai R., Gilliham, Matthew, Bicho, Ana, Feijó, José A.

“…We investigated the molecular basis and physiological implications of anion transport during pollen tube (PT) growth in Arabidopsis thaliana (Col-0)…”
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Pollen Tube Growth Regulation by Free Anions Depends on the Interaction between the Anion Channel SLAH3 and Calcium-Dependent Protein Kinases CPK2 and CPK20 by Gutermuth, Timo, Lassig, Roman, Portes, Maria-Teresa, Maierhofer, Tobias, Romeis, Tina, Borst, Jan-Willem, Hedrich, Rainer, Feijó, José A., Konrad, Kai R.

“…Apical growth in pollen tubes (PTs) is associated with the presence of tip-focused ion gradients and fluxes, implying polar localization or regulation of the…”
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