Article
Plant Sciences
Ana Rita Leal, Pedro Miguel Barros, Boris Parizot, Helena Sapeta, Nick Vangheluwe, Tonni Grube Andersen, Tom Beeckman, M. Margarida Oliveira
Summary: Using Arabidopsis as a model, this study provides a detailed analysis of the translatome of developing phellem cells, revealing the initiation of suberization early after cork cambium division and the identification of novel players in suberin monomer transport and assembly as well as transcriptional regulation.
Article
Plant Sciences
Anna Konkina, Mariola Klepadlo, Abdellah Lakehal, Zein El Zein, Afroditi Krokida, Mina Botros, Michail Iakovidis, Pavel Chernobavskiy, Mohamed Elfatih Zerroumda, George Tsanakas, Nikos Petrakis, Athanasia-Maria Dourou, Panagiotis Kalaitzis
Summary: The study discovered that an Arabidopsis AtP4H3 T-DNA knock out mutant line showed higher sensitivity to anoxic treatment possibly due to lower induction of the fermentation pathway genes.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Anh H. Ngo, Yuki Nakamura
Summary: Phosphate starvation induces the production of GDPD6 enzyme in Arabidopsis, which improves root growth by producing glycerol 3-phosphate. GDPD6 is involved in the hydrolysis of glycerophosphocholine in phosphate-starved plants.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Biochemistry & Molecular Biology
Xiaoyun Tan, Haoyue Xu, Jie Ye, Jin Wang, Wenlong Liu, Feng Liu, Qingchen Rui, Yiqun Bao
Summary: The exocyst subunit SEC6 plays an important role in cell plate formation during pollen mitosis I and might help to tether the vesicles before fusion.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Carolina Elejalde-Palmett, Ignacio Martinez San Segundo, Imene Garroum, Laurence Charrier, Damien De Bellis, Antonio Mucciolo, Aurore Guerault, Jie Liu, Viktoria Zeisler-Diehl, Asaph Aharoni, Lukas Schreiber, Benedicte Bakan, Mads H. Clausen, Markus Geisler, Christiane Nawrath
Summary: This study reveals the role of SlABCG42 in the formation of plant cutin, suggests that downregulation of certain tomato genes can affect cutin deposition and cuticle formation, and demonstrates the export activities of AtABCG32 and SlABCG42 for various cutin precursors in vivo.
Article
Plant Sciences
Yansheng Wu, Hongmin Yin, Xinyue Liu, Jiawei Xu, Baozhi Qin, Kaili Feng, Erfang Kang, Zhonglin Shang
Summary: Extracellular ATP (eATP) functions as a signal in plant growth and development, promoting pollen germination (PG) and pollen tube growth (PTG) by stimulating Ca2+ or K+ absorption. The mechanisms underlying the eATP-stimulated ion uptake and their role in PG and PTG were investigated using Arabidopsis thaliana as a model. The results suggest that signaling components involved in eATP-promoted PG and PTG may regulate Ca2+ or K+ influx in Arabidopsis pollen grains.
Article
Plant Sciences
Danila Cabral, Helkin Forero Ballesteros, Bruno Paes de Melo, Isabela Tristan Lourenco-Tessutti, Kercya Maria Simoes de Siqueira, Luciana Obicci, Maria Fatima Grossi-de-Sa, Adriana S. Hemerly, Janice de Almeida Engler
Summary: Research on the role of ABAP1 in root-knot nematode-induced galls shows that it can affect gall size and nematode growth and reproduction, participating in cell cycle regulation and preventing further expansion of galls.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Jiangping Mao, Doudou Ma, Chundong Niu, Xiaolong Ma, Ke Li, Muhammad Mobeen Tahir, Shiyue Chen, Xiuxiu Liu, Dong Zhang
Summary: The study demonstrates that MdWOX11 plays a crucial role in regulating the hormone signaling pathways to promote adventitious shoot (AS) regeneration in apple plants.
HORTICULTURE RESEARCH
(2022)
Article
Plant Sciences
Wei-Yu Hsieh, Hsin-Mei Wang, Yi-Hsin Chung, Kim-Teng Lee, Hong-Sheng Liao, Ming-Hsiun Hsieh
Summary: This study reveals the involvement of TH2-GFP in the biosynthetic pathway of vitamin B1 in Arabidopsis. The TMP/TDP phosphatase activity of TH2 plays a crucial role in the synthesis and homeostasis of vitamin B1.
Article
Environmental Sciences
Youngjae Pyo, Heewon Moon, Adji Baskoro Dwi Nugroho, Seong Wook Yang, Il Lae Jung, Dong-Hwan Kim
Summary: Strontium, particularly its radioactive isotope Sr-90, poses a global threat to the environment and human health. The molecular mechanisms underlying plant response to Sr toxicity remain largely unknown. This study used RNA-seq analysis to compare gene expression profiles between control and Sr-treated plants, revealing that the JA biosynthesis and/or signaling pathway may play important roles in plant response to Sr stress, maintaining proper growth and development.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Biochemistry & Molecular Biology
Kaiqi Wang, Xin Zhao, Chaoting Pang, Sida Zhou, Xuexue Qian, Nan Tang, Naiying Yang, Ping Xu, Xiaofeng Xu, Jufang Gao
Summary: The newly discovered gene IEF, regulated by AMS, plays a crucial role in exine formation and is involved in sporopollenin transportation. Its mutation leads to severe male sterility and defective pollen development, highlighting the importance of IEF in pollen development and male fertility.
PLANT MOLECULAR BIOLOGY
(2021)
Article
Plant Sciences
Lang Yang, Jinhong Liu, Ching-Kiu Wong, Boon Leong Lim
Summary: The growth of pollen tubes relies on actin filaments for reproduction in plants. Pharmacological experiments indicate that the trafficking of lipid droplets (LDs) in pollen tubes is related to F-actin. Additionally, Myo11C1 and Myo11C2 motors were found to be involved in LDs movement, sharing functional redundancy in Arabidopsis pollen tubes.
Article
Multidisciplinary Sciences
Melissa S. Traver, Bonnie Bartel
Summary: Lipid droplets are conserved organelles that regulate energy homeostasis by storing and releasing neutral lipids. This study identified MIEL1 as a protein that modulates lipid droplet dynamics by ubiquitinating and degrading the seed lipid droplet protein OLE1. The human homolog of MIEL1, PIRH2, was also found to be involved in lipid catabolism and peroxisome biology in mammals.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Biochemistry & Molecular Biology
Bao Yang, Maoyin Li, Anne Phillips, Long Li, Usman Ali, Qing Li, Shaoping Lu, Yueyun Hong, Xuemin Wang, Liang Guo
Summary: Phosphate is essential for plant growth, and NPC4 enzyme plays a positive role in root growth by hydrolyzing and remodeling sphingolipids during phosphate deficiency in Arabidopsis.
Article
Plant Sciences
Jiawei Xu, Lijuan Han, Shuyan Xia, Ruojia Zhu, Erfang Kang, Zhonglin Shang
Summary: It has been found that AtANN3, a protein involved in plant cellular metabolism, plays a crucial role in the regulation of root and hypocotyl growth by extracellular ATP (eATP). In the AtANN3 null mutants, the inhibitory effects of eATP on root and hypocotyl elongation were weakened. Additionally, the eATP-induced asymmetric distribution of auxin and auxin transporters in root and hypocotyl cells was impaired in these mutants. These findings suggest that AtANN3 is involved in eATP-regulated seedling growth by regulating the distribution of auxin and auxin transporters.
Article
Genetics & Heredity
Sylvain Bertho, Amaury Herpin, Elodie Jouanno, Ayaka Yano, Julien Bobe, Hugues Parrinello, Laurent Journot, Rene Guyomard, Thomas Muller, Penny Swanson, Garrett McKinney, Kevin Williamson, Mariah Meek, Manfred Schartl, Yann Guiguen
Summary: This study found that some XY Chinook salmon females carry a mutated sdY gene, which leads to changes in the protein structure and function, affecting testicular differentiation and estrogen synthesis in Chinook salmon.
G3-GENES GENOMES GENETICS
(2022)
Article
Biochemistry & Molecular Biology
Claudia Siverino, Shorouk Fahmy-Garcia, Didem Mumcuoglu, Heike Oberwinkler, Markus Muehlemann, Thomas Mueller, Eric Farrell, Gerjo J. V. M. van Osch, Joachim Nickel
Summary: This study proposes an alternative strategy for the treatment of large bone defects by covalently immobilizing an engineered BMP2 variant to biocompatible scaffolds. The results demonstrate the translational potential of this innovative technique in inducing bone tissue formation, improving safety for patients, and reducing costs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Dorothea Graus, Kunkun Li, Jan M. Rathje, Meiqi Ding, Markus Krischke, Martin J. Mueller, Tracey Ann Cuin, Khaled A. S. Al-Rasheid, Soenke Scherzer, Irene Marten, Kai R. Konrad, Rainer Hedrich
Summary: Research found that tobacco leaves exhibit significant leaf movements and detoxify sodium ions through the release of cellular water under salt stress. Tobacco leaves can recover quickly after salt stress, and this recovery process depends on plasma membrane hydrogen ion pumps and vacuolar ion exchange. Unlike roots, salt stress signaling and processing in tobacco leaves do not rely on calcium signaling.
Article
Plant Sciences
Shouguang Huang, Tobias Maierhofer, Kenji Hashimoto, Xiangyu Xu, Sohail M. Karimi, Heike Mueller, Michael A. Geringer, Yi Wang, Joerg Kudla, Ive De Smet, Rainer Hedrich, Dietmar Geiger, M. Rob G. Roelfsema
Summary: This study found that CIPK23 is expressed in Arabidopsis guard cells and enhances stomatal conductance by regulating the activity of multiple ion channel proteins, including the inhibition of SLAC1-type anion channels.
Article
Plant Sciences
Traud Winkelmann, Gerhard Bringmann, Anne Herwig, Rainer Hedrich
Summary: Triphyophyllum peltatum, a rare tropical African liana, exhibits facultative carnivory. This study identified phosphorus deficiency as the key trigger for the formation of carnivorous leaves in this plant. Cultivation of T. peltatum and induction of carnivory have been established, which will provide important insights into the molecular mechanism of carnivory.
Article
Environmental Sciences
Leila Arab, Yasutomo Hoshika, Elena Paoletti, Philip J. White, Michael Dannenmann, Heike Mueller, Peter Ache, Rainer Hedrich, Saleh Alfarraj, Ghada Albasher, Heinz Rennenberg
Summary: Chronic ozone exposure selectively disrupts metabolic processes in the roots rather than the shoot, affecting mineral uptake and partitioning between roots and shoots. However, there were no significant changes in total carbon and nitrogen concentrations and their partitioning between different metabolic pools. The effects of chronic ozone exposure on mineral acquisition and partitioning between leaves and roots are discussed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Plant Sciences
Rainer Hedrich, Ines Kreuzer
Summary: All plants have electrical excitability, but only few can produce a well-defined action potential (AP). The Venus flytrap Dionaea muscipula is able to generate APs with a high firing frequency and speed, allowing it to catch small animals quickly. The captured prey triggers a certain number of APs, which influences the trapping decisions made by the flytrap. The typical Dionaea AP lasts 1 second and consists of five phases, each controlled by specific ion channels, pumps, and carriers.
Article
Plant Sciences
Justyna Jaslan, Irene Marten, Liina Jakobson, Triinu Arjus, Rosalia Deeken, Cecilia Sarmiento, Alexis De Angeli, Mikael Brosche, Hannes Kollist, Rainer Hedrich
Summary: Plant transpiration is regulated by stomata, which are controlled by S- and R-type anion channels. Arabidopsis mutants lacking the ALMT12/QUAC1 R-type anion channel exhibit only a partial reduction in R-type channel currents. The molecular nature of these remaining R-type anion currents is still unknown.
Article
Forestry
Baoguo Du, Jana Barbro Winkler, Peter Ache, Philip J. White, Michael Dannenmann, Saleh Alfarraj, Gadah Albasher, Joerg-Peter Schnitzler, Rainer Hedrich, Heinz Rennenberg
Summary: Drought and salt exposure have significant effects on water relations and nitrogen metabolites in leaves and roots of date palm seedlings. Water deprivation decreased total C concentration and increased total N concentration in roots, while salt exposure initially decreased total C concentration and increased total N concentration in roots, but increased total C concentration in leaves upon prolonged exposure. Both treatments resulted in the accumulation of most amino acids, indicating their role as compatible solutes in response to salt and drought stress in the roots, but not in the leaves. These findings highlight the differential impact of water deprivation and salt exposure on N metabolism in date palm seedlings.
Article
Plant Sciences
Bo Xu, Xueying Feng, Adriane Piechatzek, Shuqun Zhang, Kai R. Konrad, Johannes Kromdijk, Rainer Hedrich, Matthew Gilliham
Summary: This study revealed the important role of GADs in maintaining ROS homeostasis in guard cells, likely through a Ca2+-mediated pathway. The loss of GAD1, GAD4, and GAD5 in gad2 leaves increased GABA deficiency and resulted in increased cytosolic calcium and ROS accumulation in guard cells. Complementation with GAD2 or the application of ROS inhibitors restored the greater stomatal apertures of gad1/2/4/5, emphasizing the complexity of GABA's role as a guard-cell signal.
Review
Multidisciplinary Sciences
Valentina Emiliani, Emilia Entcheva, Rainer Hedrich, Peter Hegemann, Kai R. Konrad, Christian Luscher, Mathias Mahn, Zhuo-Hua Pan, Ruth R. Sims, Johannes Vierock, Ofer Yizhar
Summary: Optogenetics is a powerful technique that allows control and manipulation of specific cells using genetic engineering and light. It has revolutionized neuroscience and has the potential to impact other fields as well.
NATURE REVIEWS METHODS PRIMERS
(2022)
Article
Plant Sciences
Matthias Freund, Dorothea Graus, Andreas Fleischmann, Kadeem J. Gilbert, Qianshi Lin, Tanya Renner, Christian Stigloher, Victor Albert, Rainer Hedrich, Kenji Fukushima
Summary: To survive in nutrient-poor environments, carnivorous plants have developed traps analogous to animal digestive systems to capture and digest small organisms. These traps modify plant-specific organs, such as leaves, to acquire the ability to break down and absorb nutrients. Digestive glands in carnivorous plants secrete enzymes and other substances to digest prey, while absorbing the released compounds for nutrient uptake.
Article
Plant Sciences
Benjamin A. Babst, David M. Braun, Abhijit A. Karve, R. Frank Baker, Thu M. Tran, Douglas J. Kenny, Julia Rohlhill, Jan Knoblauch, Michael Knoblauch, Gertrud Lohaus, Ryan Tappero, Soenke Scherzer, Rainer Hedrich, Kaare H. Jensen
Summary: Phloem transport of photoassimilates plays a crucial role in plant growth and yield. This study demonstrates that sugar import is not necessary for phloem sap flow, and increased potassium loading compensates for decreased sucrose loading to maintain phloem pressure and transport.
Article
Plant Sciences
Ali Kiani-Pouya, Leiting Li, Fatemeh Rasouli, Zheting Zhang, Jiahong Chen, Min Yu, Ayesha Tahir, Rainer Hedrich, Sergey Shabala, Heng Zhang
Summary: This study characterized the transcriptome differences between intact and EBC-free quinoa leaves in response to salt stress. EBC-free leaves retained most of the transcriptome responses to salt stress, but failed to induce certain specific processes such as increased DNA replication activity. These results reveal the critical role of EBCs in salt stress acclimation of quinoa leaves.