Article
Biochemistry & Molecular Biology
Yan-Bao Lei, Hong-Xia Xia, Ke Chen, Andelka Plenkovic-Moraj, Wei Huang, Geng Sun
Summary: Mosses can grow under fluctuating light conditions due to the roles of FLVs and CEF in regulating photosynthesis, especially when exposed to temperature stress. The coordination between FLV activity and CEF under fluctuating light and temperature stress is crucial for the photosynthetic acclimation of different moss species. The mosses with different light requirements show distinct FLV activity and CEF levels, indicating a species-specific response to fluctuating light and temperature stress.
Review
Plant Sciences
Ginga Shimakawa
Summary: This review summarizes the molecular mechanisms of electron transport in cyanobacterial thylakoid membranes to enhance our understanding of the complexity of cyanobacterial electron transport. Cyanobacteria are the simplest oxygenic phototrophs structurally, but the regulation of their photosynthesis is challenging due to the shared thylakoid membranes and cytosolic space for photosynthetic and respiratory processes. The review aims to summarize the molecular mechanisms and in vivo activities of electron transport in cyanobacterial thylakoid membranes based on the latest research progress in photosynthesis.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Biochemistry & Molecular Biology
Hongxia Xia, Ke Chen, Lilan Liu, Andelka Plenkovic-Moraj, Geng Sun, Yanbao Lei
Summary: Photosynthesis regulation is crucial for bryophytes' adaptation to terrestrial life. Flavodiiron proteins and cyclic electron flow play important roles in bryophytes' response to abiotic stresses. In this study, the photosynthetic performance of three moss species was examined under heat, dehydration, and fluctuating light. The results showed that resistant species had a higher cyclic electron flow, which was positively correlated with flavodiiron proteins. However, this positive correlation switched to negative in the other two species under severe stress conditions.
Article
Plant Sciences
Xiuping Liu, Yunzhou Qiao, Wangming Zhou, Wenxu Dong, Lianhong Gu
Summary: The photosynthetic electron transport chain (ETC), which is fundamental for the balance between energy supply and demand in photosynthesis, is affected by nutrient availability and plant developmental stages. In this study, we investigated the structural controls of ETC on the photochemical reactions and electron transport by measuring chlorophyll fluorescence and gas exchange under varying environmental conditions and growth stages of maize.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Chemistry, Analytical
Deseree J. Reid, Tapasyatanu Dash, Zhihan Wang, Craig A. Aspinwall, Michael T. Marty
Summary: Daptomycin is a cyclic lipopeptide antibiotic that interacts with lipid membranes in a non-specific manner. The interaction strength depends on membrane rigidity, with more rigid membranes showing stronger interactions. More fluid membranes may undergo pore formation to expose daptomycin to oxidation. These findings highlight the complementary use of native mass spectrometry, fast photochemical oxidation of peptides, and membrane conductance experiments in studying antibiotic-membrane interactions.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Deseree J. Reid, Tapasyatanu Dash, Zhihan Wang, Craig A. Aspinwall, Michael T. Marty
Summary: In this study, native mass spectrometry (MS) and fast photochemical oxidation of peptides (FPOP) were used to investigate the interactions between the antibiotic daptomycin and different lipid bilayer nanodiscs. The results showed that daptomycin incorporates randomly into bilayers and has stronger interactions with rigid membranes. Pore formation may occur in fluid membranes, exposing daptomycin to oxidation. These findings demonstrate the complementarity of native MS, FPOP, and membrane conductance experiments in understanding antibiotic peptide-membrane interactions.
ANALYTICAL CHEMISTRY
(2023)
Article
Agronomy
Sebastian Wieneke, Manuela Balzarolo, Han Asard, Hamada Abd Elgawad, Josep Penuelas, Uwe Rascher, Arne Ven, Melanie S. Verlinden, Ivan A. Janssens, Sara Vicca
Summary: Sun-induced chlorophyll fluorescence (SIF) is a promising remote-sensing signal for assessing variation in photosynthesis, but its relationship with photosynthetic efficiency is non-linear. By normalizing SIF by absorbed photosynthetic active radiation (APAR), the physiological regulation of photosynthetic efficiency can be better reflected. The impact of phosphorus on photosynthetic efficiency can be estimated using fluorescence efficiency parameters, but predicting photosynthetic efficiency solely based on these parameters is challenging.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Plant Sciences
Richard Peter Beckett, Thomas Roach, Farida Minibayeva, Silke Werth
Summary: The photosynthetic apparatus of lichen photobionts, including cyclic electron flow and photoprotection, was studied using chlorophyll fluorescence analysis and near-infrared absorption. Sun species exhibited lower PSI acceptor side limitation and higher flavodiiron-mediated pseudocyclic electron flow compared to shade species. Melanised lichens had lower Y[NA], higher NDH-2-type cyclic flow, and higher non-photochemical quenching, while shade species displayed faster relaxing NPQ. Cyclic electron flow was a prominent feature in all lichens regardless of habitat.
PHYSIOLOGIA PLANTARUM
(2023)
Article
Multidisciplinary Sciences
Xuemei Ma, Qiang Liu, Zhidong Zhang, Zewen Zhang, Zeyu Zhou, Yu Jiang, Xuanrui Huang
Summary: The study compared four models in simulating the photosynthetic light response curve of tree crown and found that the MRHM model had the highest fitting accuracy. The light saturation point (LSP) obtained by MRHM was slightly lower than the observed values, while the maximum net photosynthetic rates (P-max) modeled by the four models were close to the measured values.
Article
Biochemistry & Molecular Biology
Guenter G. Lehretz, Anja Schneider, Dario Leister, Uwe Sonnewald
Summary: Expression of VPZ genes in potato plants accelerates the induction and relaxation of photoprotection under various light conditions but does not improve photosynthetic rate or plant growth. Instead, tuber yield decreases under fluctuating light conditions. The negative effect may be due to reduced radiation use efficiency caused by strong NPQ induction under high light conditions.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Article
Plant Sciences
Nima P. Saadat, Tim Nies, Marvin van Aalst, Brandon Hank, Busra Demirtas, Oliver Ebenhoeh, Anna Matuszynska
Summary: This study focuses on the central role of Photosystem I (PSI) in supplying energy and regulating reactive oxygen species (ROS) production in the course of photosynthesis. Through computational modeling, the researchers predict flux distributions through alternative electron pathways under various environmental stress conditions and investigate the impact of these stressors on PSI activity and metabolic productivity.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Biochemistry & Molecular Biology
Ruiqi Li, Ying He, Junyu Chen, Shaoyan Zheng, Chuxiong Zhuang
Summary: Photosynthesis is the largest process for converting energy on Earth and serves as the foundation for all biological activities. Optimizing light reactions is the main approach to improve photosynthetic efficiency, including increasing light absorption and conversion, enhancing non-photochemical quenching recovery, modifying enzymes in the Calvin cycle, introducing carbon concentration mechanisms in C-3 plants, rebuilding the photorespiration pathway, de novo synthesis, and altering stomatal conductance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Adrien Burlacot, Ousmane Dao, Pascaline Auroy, Stephan Cuine, Yonghua Li-Beisson, Gilles Peltier
Summary: Global photosynthesis consumes ten times more CO2 than net anthropogenic emissions, and microalgae account for nearly half of this consumption. In the green alga Chlamydomonas reinhardtii, cyclic electron flow and O-2 photoreduction generate a low luminal pH essential for CO2 concentration, while electron flow from chloroplast to mitochondria energizes inorganic carbon transport.
Article
Biochemistry & Molecular Biology
Kasane Suzuki, Shinji Masuda
Summary: The control of pH in chloroplasts is crucial for regulating photosynthesis, but the specific regulatory mechanisms of H+ homeostasis in chloroplasts are not fully understood. Recent research suggests that the cyanobacterial PxcA homolog DLDG1 is involved in controlling plastidial pH. By examining various double mutants lacking specific non-photochemical quenching (NPQ)-related proteins, it was found that PsbS functions upstream of DLDG1, PGR5 affects NPQ independently, and FLAP1 and DLDG1 regulate ΔpH independently.
Article
Plant Sciences
Henna Mustila, Dorota Muth-Pawlak, Eva-Mari Aro, Yagut Allahverdiyeva
Summary: In this study, the global proteome of Synechocystis sp. PCC 6803 under fluctuating light conditions was compared with constant light conditions. It was found that cell metabolism was clearly reprogrammed, and there were correlations between mRNA and protein levels to some extent. The data suggest that higher nitrogen assimilation is maintained for long-term acclimation to fluctuating light upon CO2 step-down in Synechocystis sp. PCC 6803.
PHYSIOLOGIA PLANTARUM
(2021)
Correction
Agronomy
Habtamu Tura, James Edwards, Vijay Gahlaut, Melissa Garcia, Beata Sznajder, Ute Baumann, Fahimeh Shahinnia, Matthew Reynolds, Peter Langridge, Harindra Singh Balyan, Pushpendra K. Gupta, Thorsten Schnurbusch, Delphine Fleury
THEORETICAL AND APPLIED GENETICS
(2021)
Review
Immunology
Joaquin Miguel Pellegrini, Nancy Liliana Tateosian, Maria Paula Morelli, Veronica Edith Garcia
Summary: This review explores the role of autophagy in the immune response of human hosts against Mycobacterium tuberculosis (Mtb). It suggests that understanding the autophagic response in tuberculosis patients may lead to the development of new therapeutic targets to combat Mtb and ultimately benefit tuberculosis prevention and treatment in humans.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Zeno Guardini, Rodrigo L. Gomez, Roberto Caferri, Luca Dall'Osto, Roberto Bassi
Summary: Efficient assembly of Photosystem II supercomplexes is essential for proper light capture and photoprotective dissipation of chlorophyll excited states. The chlorophyll-protein domain of CP29, particularly the chlorophyll b614 residue, is found to play a crucial role in maintaining full rate of electron flow by controlling protein-protein interactions between PSII units in grana partitions.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
(2022)
Article
Immunology
Nicolas O. Amiano, Joaquin M. Pellegrini, Maria P. Morelli, Camila Martinena, Agustin Rolandelli, Florencia A. Castello, Nicolas Casco, Lorena M. Ciallella, Graciela C. de Casado, Rita Armitano, Juan Stupka, Claudio Gallego, Domingo J. Palmero, Veronica E. Garcia, Nancy L. Tateosian
Summary: This study investigated the relationship between the immunological responsiveness of patients with active TB and MDSC and monocytes subsets, finding that CD16 positive monocytes and M-MDSC frequencies could serve as another immunological classification parameter. Additionally, in LR-TB, the frequencies of CD16 positive monocytes and M-MDSC were restored after only three weeks of anti-TB treatment.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2022)
Article
Plant Sciences
Peng Wang, Tian Tian, Jingfu Ma, Yuan Liu, Peipei Zhang, Tao Chen, Fahimeh Shahinnia, Delong Yang
Summary: This study identified significant marker-trait associations for kernel traits in wheat and predicted potential candidate genes. These results provide new insights into the genetic basis of kernel traits and can facilitate marker-assisted selection in wheat breeding.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
P. I. Calzadilla, F. E. L. Carvalho, R. Gomez, M. C. Lima Neto, S. Signorelli
Summary: Photosynthesis is a crucial metabolic pathway for plant growth and biomass production. Environmental adversities negatively affect photosynthetic activity, but plants have mechanisms to cope with these changes. Researching different methods to assess photosynthesis is important for understanding plant physiology and improving crop yield.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Nicolas Figueroa, Rodrigo Gomez
Summary: Overexpression of NAC regulators can enhance cold stress tolerance in plants, but there is a lack of consensus on the evaluation parameters and direction of the responses.
Article
Agronomy
Fahimeh Shahinnia, Manuel Geyer, Friederike Schuermann, Sabine Rudolphi, Josef Holzapfel, Hubert Kempf, Melanie Stadlmeier, Franziska Loeschenberger, Laura Morales, Hermann Buerstmayr, Julio Isidro Y. Sanchez, Deniz Akdemir, Volker Mohler, Morten Lillemo, Lorenz Hartl
Summary: Two loci on chromosomes 2BS and 6AL were found to significantly contribute to stripe rust resistance in current European winter wheat germplasm. These findings provide valuable information for the breeding programs aimed at developing rust resistant cultivars. Genomic association analysis identified 12 SNP markers on six wheat chromosomes that consistently showed effects on adult plant stripe rust resistance. Two highly predictive markers on chromosomes 2BS and 6AL were validated in three independent populations, indicating their potential for efficient selection of resistant cultivars.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Plant Sciences
Jingfu Ma, Yuan Liu, Peipei Zhang, Tao Chen, Tian Tian, Peng Wang, Zhuo Che, Fahimeh Shahinnia, Delong Yang
Summary: An integrative strategy with QTL linkage mapping, meta-analysis and transcriptomic assessment revealed major genomic regions and putative candidate genes for kernel size-related traits in wheat. These findings provide a novel insight into understanding the genetic determinants of kernel size-related traits and will be useful for the marker-assisted selection of high yield in wheat breeding.
Article
Biochemistry & Molecular Biology
Razieh Rahmati, Rasmieh Hamid, Zahra Ghorbanzadeh, Feba Jacob, Pezhman Azadi, Mehrshad Zeinalabedini, Laleh Karimi Farsad, Mehrbano Kazemi, Mohammad Ali Ebrahimi, Fahimeh Shahinnia, Ghasem Hosseini Salekdeh, Mohammad Reza Ghaffari, Mohammad Reza Hajirezaei
Summary: In this study, transcriptomics and targeted metabolic profiling were used to identify molecular changes in hydrangea plants cultured at different pH levels. The study identified potential key regulators of flower pigmentation and provided novel insights into the molecular networks in hydrangea flowers.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Kaiqi Guo, Tao Chen, Peipei Zhang, Yuan Liu, Zhuo Che, Fahimeh Shahinnia, Delong Yang
Summary: A comprehensive meta-analysis was conducted on 411 original QTLs for six chlorophyll traits in wheat, resulting in the identification of 56 consensus MQTLs distributed on multiple chromosomes. Additionally, 136 candidate genes related to chlorophyll traits were discovered, involving various metabolic pathways. These findings contribute to the understanding of the genetic basis for controlling chlorophyll traits and breeding wheat with high photosynthetic efficiency.
Article
Plant Sciences
Fahimeh Shahinnia, Volker Mohler, Lorenz Hartl
Summary: Through genome-wide association study, five significant SNPs associated with yellow rust resistance and a new QTL on chromosome 1B were identified, providing a basis for resistance breeding in the face of the enormous impact of the Warrior (-) race on wheat production in Europe.
Review
Biochemistry & Molecular Biology
Nancy Liliana Tateosian, Maria Paula Morelli, Joaquin Miguel Pellegrini, Veronica Edith Garcia
Summary: Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), has resulted in the death of almost one billion people in the past 200 years. TB remains a significant global health concern, ranking among the top thirteen leading causes of death worldwide. TB infection in humans can manifest in different stages with varying symptoms, immune responses, and pathology profiles. Active Mtb infection can lead to the development of diverse immune endotypes in TB patients due to individual immunological profiles influenced by various factors. Understanding the factors involved in shaping the immunological status of TB patients during active Mtb infection can contribute to the development of Host Directed Therapy.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Na Li, Yongping Miao, Jingfu Ma, Peipei Zhang, Tao Chen, Yuan Liu, Zhuo Che, Fahimeh Shahinnia, Delong Yang
Summary: This study identified key genomic regions and putative candidate genes for grain quality traits in wheat through meta-analysis of QTLs and comprehensive transcriptome assessment. A total of 508 original QTLs were collected, and 313 MQTLs were identified on 17 chromosomes. The MQTLs had smaller confidence intervals and physical lengths compared to the original QTLs. Additionally, 135 putative candidate genes were identified from the MQTL regions. These findings will contribute to a better understanding of grain quality in wheat and assist in breeding improvements.
Article
Plant Sciences
Christo Schiphorst, Luuk Achterberg, Rodrigo Gomez, Rob Koehorst, Roberto Bassi, Herbert van Amerongen, Luca Dall'Osto, Emilie Wientjes
Summary: The light-harvesting antennae of photosystem I facilitate energy transfer from trimeric light-harvesting complex II to photosystem I, and the presence of LHCI significantly enhances the efficiency of energy transfer.
