Article
Plant Sciences
Zsuzsanna Merai, Fei Xu, Andreas Musilek, Florian Ackerl, Sarhan Khalil, Luz Mayela Soto-Jimenez, Katarina Lalatovic, Cornelia Klose, Danuse Tarkowska, Veronika Tureckova, Miroslav Strnad, Ortrun Mittelsten Scheid
Summary: The role of light in seed germination differs among plants. In Arabidopsis, light is required to initiate germination, while in Aethionema arabicum, white light inhibits germination. This study identified a mutant, koy-1, in A. arabicum that lost light inhibition of germination due to a mutation in the HEME OXYGENASE 1 gene, a key enzyme in the biosynthesis of the phytochrome chromophore.
Article
Plant Sciences
Maria Fernanda Dreccer, Alec B. Zwart, Ralf-Christian Schmidt, Anthony G. Condon, Mary A. Awasi, Terry J. Grant, Alexander Galle, Stephane Bourot, Claus Frohberg
Summary: The study found that sensing neighboring plants through the Red to Far-Red light ratio (R:FR) can limit yield potential in wheat. The effects of increased R:FR within the canopy were studied in dense wheat mini canopies grown in controlled environments. The response to high R:FR depended on the developmental stage and cultivar, showing positive effects if applied after stem elongation but negative or null effects if applied before. Combining high R:FR with elevated CO2 or CO2 alone also had cultivar-dependent effects. These findings suggest that R:FR plays a significant role in controlling yield potential in wheat.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Chia-Yang Chen, Chung-Han Chang, Chien-Han Wu, Yi-Tsung Tu, Keqiang Wu
Summary: This study reveals that cyclin-dependent kinase CDKC2 can interact with and phosphorylate HDA15, playing an important role in far-red light-regulated hypocotyl elongation. Both HDA15 and CDKC2 function synergistically in cell elongation, with downstream effects on cell wall organization- and auxin signaling-related genes under far-red light.
Article
Biochemical Research Methods
Ting-So Liu, Ke-Feng Wu, Han-Wei Jiang, Kai-Wen Chen, Ting-Shuo Nien, Donald A. Bryant, Ming-Yang Ho
Summary: With the increasing demand for sustainable energy, photoautotrophic cyanobacteria have become a popular platform for synthetic biology tools. However, genetic tools have not yet been developed for many cyanobacteria strains suitable for industrial applications. This study established a conjugation-based method for gene expression in Chlorogloeopsis fritschii PCC 9212 and identified a promoter activated by far-red light, providing an additional option for regulating gene expression in cyanobacteria.
ACS SYNTHETIC BIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Yang Zhou, Deqiang Kong, Xinyi Wang, Guiling Yu, Xin Wu, Ningzi Guan, Wilfried Weber, Haifeng Ye
Summary: The study introduces a small red/far-red light-mediated photoswitch system called REDMAP based on the plant photoreceptor PhyA, which allows for precise spatiotemporal control of biological activities in animals. This system demonstrates dynamic control of endogenous cascades and epigenetic remodeling, with potential applications in therapy.
NATURE BIOTECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Rui Sun, Maiko Okabe, Sho Miyazaki, Toshiaki Ishida, Kiyoshi Mashiguchi, Keisuke Inoue, Yoshihiro Yoshitake, Shohei Yamaoka, Ryuichi Nishihama, Hiroshi Kawaide, Masatoshi Nakajima, Shinjiro Yamaguchi, Takayuki Kohchi
Summary: In the liverwort Marchantia polymorpha, the synthesis of gibberellin and related genes play important roles in light responses.
Article
Plant Sciences
Alina Pelsoczi, Edit Horvath, Zalan Czekus, Andras Kukri, Peter Poor, Agnes Galle
Summary: This study found that nocturnal red light treatment can increase the activity of GST and antioxidant enzymes in wheat plants, contributing to the detoxification of fumonisin B1 and reducing oxidative stress.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Chemistry, Multidisciplinary
Abhishek Sirohiwal, Dimitrios A. Pantazis
Summary: Photosystem-II uses far-red photons to trigger charge separation and bypasses the light-harvesting apparatus, leading to an extension of the photosynthetically active radiation limit.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Plant Sciences
Yuan Wen, Lingyan Zha, Wenke Liu
Summary: The study revealed that under different dark period light intensities of continuous light, hydroponic lettuce biomass, ascorbate contents, metabolism-related enzyme activities, chlorophyll fluorescence parameters, and H2O2 contents were regulated.
Article
Biochemistry & Molecular Biology
Yuzhen Li, Shasha Zhang, Yanmin Zou, Lina Yuan, Miaomiao Cheng, Jiahuan Liu, Chunguang Zhang, Yuling Chen
Summary: The study investigates the negative regulatory role of mitogen-activated protein kinase 11 (MPK11) in red light-induced stomatal opening in plants. It is found that MPK11 is highly expressed in guard cells and localized in both the nucleus and cytoplasm. White light upregulates the transcript levels of MPK11 in guard cells, and the mpk11 mutant exhibits a larger stomatal aperture under white light. Moreover, red light also upregulates the transcript levels of MPK11 in guard cells, and the mpk11 mutant shows a larger stomatal aperture under red light.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2023)
Article
Plant Sciences
Chen Hu, Wojciech J. Nawrocki, Roberta Croce
Summary: Vascular plants predominantly use carotenoids and chlorophylls a and b for solar energy absorption, with limited utilization of far-red (FR) light, unlike some cyanobacteria which have evolved to harness FR light through redesigning photosynthetic apparatus. Implementing similar strategies in plants to boost crop yield requires a better understanding of FR light-induced changes. Research on Arabidopsis thaliana exposed to FR light revealed adjustments in photosystem antenna size for energy input balance, leading to photoinhibition upon re-exposure to light. Notably, the alterations in photosynthetic membrane structure induced by FR light are not due to senescence, but rather a response to excitation imbalance between photosystems.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Christopher J. Gisriel, Eduard Elias, Gaozhong Shen, Nathan T. Soulier, David A. Flesher, M. R. Gunner, Gary W. Brudvig, Roberta Croce, Donald A. Bryant
Summary: To adapt to low-light environments, some cyanobacteria express a variant of the light-harvesting protein allophycocyanin (AP) that strongly absorbs far-red light (FRL). The structure-function relationship of this FRL-AP complex, expressed during acclimation to low light, was revealed using cryo-electron microscopy and time-resolved absorption spectroscopy. FRL-AP forms helical nanotubes instead of typical toroids due to altered domain geometry within each subunit. This study expands the understanding of light-harvesting proteins in nature and highlights the trade-off between resource accessibility and efficiency achieved through biological plasticity.
Article
Plant Sciences
Edit Horvath, Krisztina Bela, Kitti Kulman, Nora Farago, Riyazuddin Riyazuddin, Agnes Galle, Laszlo G. Puskas, Jolan Csiszar
Summary: Salicylic acid (SA) plays a crucial role in defense against pathogens and abiotic stress responses. This study investigates the role of glutathione transferases (GSTs) in the transcriptional reprogramming of redox status-related genes. Our results show that different concentrations of SA have different effects on oxidative stress- and redox-related gene expression. The Atgst mutants exhibit lower vitality and different gene expression patterns compared to the wild type plants, indicating the involvement of AtGSTF8 and AtGSTU19 in redox signaling.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Biochemistry & Molecular Biology
Eszter Balogh, Balazs Kalapos, Mohamed Ahres, Akos Boldizsar, Krisztian Gierczik, Zsolt Gulyas, Monika Gyugos, Gabriella Szalai, Aliz Novak, Gabor Kocsy
Summary: Spectral quality, intensity and period of light can modify many regulatory and stress signaling pathways in plants. In this study, the researchers investigated the effect of supplemental far-red and blue lights on the diurnal expression of genes related to photoreceptors, the circadian clock, nitrate reduction, glutathione metabolism and antioxidants in barley plants. The results suggest that far-red light plays a major role in the coordinated transcriptional adjustment of nitrate reduction, glutathione metabolism and antioxidant enzymes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Yu Pang, Hao Zhang, Hui-wang Ai
Summary: In this study, an improved fluorescent indicator, TrxRFP2, was developed to track the redox state of Trx1 in the cytosol and nucleus. A new genetically encoded fluorescent indicator, MtrxRFP2, was also created to monitor the redox status of mitochondrial Trx. The subcellularly localized MtrxRFP2 was used for imaging mitochondrial redox changes in live cells.
Article
Plant Sciences
Jie Cao, Zsolt Gulyas, Balazs Kalapos, Akos Boldizsar, Xinye Liu, Magda Pal, Yingyin Yao, Gabor Galiba, Gabor Kocsy
JOURNAL OF EXPERIMENTAL BOTANY
(2019)
Article
Multidisciplinary Sciences
Eva Szakacs, Kitti Szoke-Pazsi, Balazs Kalapos, Annamaria Schneider, Laszlo Ivanizs, Marianna Rakszegi, Gyula Vida, Istvan Molnar, Marta Molnar-Lang
SCIENTIFIC REPORTS
(2020)
Article
Plant Sciences
Akos Boldizsar, Alexandra Soltesz, Karen Tanino, Balazs Kalapos, Zsuzsa Marozsan-Toth, Istvan Monostori, Petre Dobrev, Radomira Vankova, Gabor Galiba
Summary: In Populus, the differential kinetics and spatial localization of PtCBFs and PtDAM1 may be related to early growth cessation and endodormancy induction under low night temperature and short photoperiod conditions. Unlike buds, the expression levels of PtCBFs and PtDAM1 in leaves were not associated with early growth cessation and dormancy induction under these conditions. The degradation of auxin and cytokinins in leaves may play an important regulatory role in CBF-DAM induced endodormancy.
Article
Plant Sciences
Mahmoud Said, Katerina Holusova, Andras Farkas, Laszlo Ivanizs, Eszter Gaal, Petr Capal, Michael Abrouk, Mihaela M. Martis-Thiele, Balazs Kalapos, Jan Bartos, Bernd Friebe, Jaroslav Dolezel, Istvan Molnar
Summary: This study developed molecular markers for gene transfer between Aegilops and wheat, determined gene positions on M- and U-genome using single-gene FISH, and validated the data in silico with DNA sequence assemblies. The findings will aid in the efficient selection of desired introgressions and support the efforts for introgression and cloning of Aegilops genes into wheat.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Ties Ausma, Vidisha Bansal, Marjan Kraaij, Anne C. M. Verloop, Anna Gasperl, Maria Muller, Stanislav Kopriva, Luit J. De Kok, Casper J. van der Kooi
Summary: Research found that sulphur deficiency has significant impacts on floral displays, causing a reduction in flower number, abnormal flower morphology, and smaller pollen, particularly affecting the pigmentation of yellow flowers. These effects are specific to sulphur depletion rather than general nutrient limitation, potentially undermining ecosystem functioning by affecting pollinators.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Multidisciplinary Sciences
Balazs Kalapos, Csilla Juhasz, Eszter Balogh, Gabor Kocsy, Istvan Tobias, Gabor Gullner
Summary: The study found significant differences in the impact of two tobamoviruses on the transcriptome of pepper, with Obuda pepper virus markedly suppressing genes related to photosynthesis while PMMoV had minimal effect on disease signaling and defense pathways. This provides a deeper insight into the defense mechanisms underlying tobamovirus resistance in pepper.
SCIENTIFIC REPORTS
(2021)
Review
Cell Biology
Anna Gasperl, Guenther Zellnig, Gabor Kocsy, Maria Mueller
Summary: This review discusses the methods for quantification and visualization of glutathione at the cellular or subcellular level in plants using immunocytochemistry and microscopy techniques. It also explores how different light spectra and intensities affect glutathione metabolism in plants. Recent findings demonstrate that light intensity and spectrum have significant effects on glutathione metabolism in wheat and Arabidopsis.
HISTOCHEMISTRY AND CELL BIOLOGY
(2022)
Article
Plant Sciences
Miklos Pogany, Tamas Danko, Julia Hegyi-Kalo, Evelin Kaman-Toth, Dorottya Reka Szam, Kamiran Aron Hamow, Balazs Kalapos, Levente Kiss, Jozsef Fodor, Gabor Gullner, Kalman Zoltan Vaczy, Balazs Barna
Summary: This study reveals the transcriptome pattern of grape cells subject to natural noble rot development in the historic Hungarian Tokaj wine region, and identifies the differences in redox and hormonal changes between noble rot and bunch rot.
Article
Biochemistry & Molecular Biology
Eszter Balogh, Balazs Kalapos, Mohamed Ahres, Akos Boldizsar, Krisztian Gierczik, Zsolt Gulyas, Monika Gyugos, Gabriella Szalai, Aliz Novak, Gabor Kocsy
Summary: Spectral quality, intensity and period of light can modify many regulatory and stress signaling pathways in plants. In this study, the researchers investigated the effect of supplemental far-red and blue lights on the diurnal expression of genes related to photoreceptors, the circadian clock, nitrate reduction, glutathione metabolism and antioxidants in barley plants. The results suggest that far-red light plays a major role in the coordinated transcriptional adjustment of nitrate reduction, glutathione metabolism and antioxidant enzymes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Gyorgy Balassa, Csilla Olah, Kinga Balassa, Ilona Racz, Gyorgy Katay, Balazs Kalapos, Imre Boldizsar, Eva Sarvari, Adam Solti, Magda Pal, Tibor Janda, Szabolcs Rudnoy
Summary: Low temperature has a significant impact on plant growth and productivity. The synthesized compound S-methylmethionine salicylate (MMS) combines the effects of two original substances and causes various changes in gene expression and metabolite content. MMS provides an environmentally friendly way to enhance plants' defense mechanisms against stressors.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Review
Biochemistry & Molecular Biology
Peter Borbely, Anna Gasperl, Tamas Palmai, Mohamed Ahres, Muhammad Ahsan Asghar, Gabor Galiba, Maria Mueller, Gabor Kocsy
Summary: Both light intensity and spectrum affect photosynthesis and the formation of reactive oxygen species. Changes in light conditions play a major role in the adjustment of metabolism. Understanding the redox control of metabolic pathways and molecular mechanisms can contribute to more efficient crop production in the future.
Article
Genetics & Heredity
Le Wang, Tingting Zhu, Juan C. Rodriguez, Karin R. Deal, Jorge Dubcovsky, Patrick E. McGuire, Thomas Lux, Manuel Spannagl, Klaus F. X. Mayer, Patricia Baldrich, Blake C. Meyers, Naxin Huo, Yong Q. Gu, Hongye Zhou, Katrien M. Devos, Jeffrey L. Bennetzen, Turgay Unver, Hikmet Budak, Patrick J. Gulick, Gabor Galiba, Balazs Kalapos, David R. Nelson, Pingchuan Li, Frank M. You, Ming-Cheng Luo, Jan Dvorak
Summary: This article reports further improvement of the genome sequence of Ae. tauschii, including revision of pseudomolecules, gap closure, and reannotation of protein-coding genes, as well as manual annotation of biologically important genes for wheat. Disease-resistance genes show specific distribution patterns on chromosomes.
G3-GENES GENOMES GENETICS
(2021)
Article
Multidisciplinary Sciences
Balazs Kalapos, Monika Hlavova, Timea Nadai, Gabor Galiba, Katerina Bisova, Robert Doczi
SCIENTIFIC REPORTS
(2019)
