@article{MTMT:34797803, title = {Effects of lipids on the rate-limiting steps in the dark-to-light transition of Photosystem II core complex of Thermostichus vulcanus}, url = {https://m2.mtmt.hu/api/publication/34797803}, author = {Magyar, Melinda and Akhtar, Parveen and Sipka, Gábor and Racskóné Domonkos, Ildikó and Han, W. and Li, X. and Han, G. and Shen, J.-R. and Lambrev, Petar and Garab, Győző}, doi = {10.3389/fpls.2024.1381040}, journal-iso = {FRONT PLANT SCI}, journal = {FRONTIERS IN PLANT SCIENCE}, volume = {15}, unique-id = {34797803}, issn = {1664-462X}, abstract = {In our earlier works, we have shown that the rate-limiting steps, associated with the dark-to-light transition of Photosystem II (PSII), reflecting the photochemical activity and structural dynamics of the reaction center complex, depend largely on the lipidic environment of the protein matrix. Using chlorophyll-a fluorescence transients (ChlF) elicited by single-turnover saturating flashes, it was shown that the half-waiting time (Δτ1/2) between consecutive excitations, at which 50% of the fluorescence increment was reached, was considerably larger in isolated PSII complexes of Thermostichus (T.) vulcanus than in the native thylakoid membrane (TM). Further, it was shown that the addition of a TM lipid extract shortened Δτ1/2 of isolated PSII, indicating that at least a fraction of the ‘missing’ lipid molecules, replaced by detergent molecules, caused the elongation of Δτ1/2. Here, we performed systematic experiments to obtain information on the nature of TM lipids that are capable of decreasing Δτ1/2. Our data show that while all lipid species shorten Δτ1/2, the negatively charged lipid phosphatidylglycerol appears to be the most efficient species – suggesting its prominent role in determining the structural dynamics of PSII reaction center. Copyright © 2024 Magyar, Akhtar, Sipka, Domonkos, Han, Li, Han, Shen, Lambrev and Garab.}, keywords = {STRUCTURAL DYNAMICS; CHLOROPHYLL-A FLUORESCENCE; Waiting time; Thylakoid lipids; Rate-limiting step; core complex of photosystem II}, year = {2024}, eissn = {1664-462X}, orcid-numbers = {Magyar, Melinda/0000-0002-1144-4657; Akhtar, Parveen/0000-0002-3264-7154; Sipka, Gábor/0000-0002-8553-4890} } @article{MTMT:34547379, title = {The zinc finger protein 3 of Arabidopsis thaliana regulates vegetative growth and root hair development}, url = {https://m2.mtmt.hu/api/publication/34547379}, author = {Benyó, Dániel and Bato, Emese and Faragó, Dóra and Rigó, Gábor and Racskóné Domonkos, Ildikó and Labhane, Nitin and Zsigmond, Laura and Prasad, Melvin and Nagy, István and Szabados, László}, doi = {10.3389/fpls.2023.1221519}, journal-iso = {FRONT PLANT SCI}, journal = {FRONTIERS IN PLANT SCIENCE}, volume = {14}, unique-id = {34547379}, issn = {1664-462X}, abstract = {Introduction Zinc finger protein 3 (ZFP3) and closely related C2H2 zinc finger proteins have been identified as regulators of abscisic acid signals and photomorphogenic responses during germination. Whether ZFP3 and related ZFP factors regulate plant development is, however, not known.Results ZFP3 overexpression reduced plant growth, limited cell expansion in leaves, and compromised root hair development. The T-DNA insertion zfp3 mutant and transgenic lines with silenced ZFP1, ZFP3, ZFP4, and ZFP7 genes were similar to wild-type plants or had only minor differences in plant growth and morphology, probably due to functional redundancy. RNAseq transcript profiling identified ZFP3-controlled gene sets, including targets of ABA signaling with reduced transcript abundance. The largest gene set that was downregulated by ZFP3 encoded regulatory and structural proteins in cell wall biogenesis, cell differentiation, and root hair formation. Chromatin immunoprecipitation confirmed ZFP3 binding to several target promoters.Discussion Our results suggest that ZFP3 and related ZnF proteins can modulate cellular differentiation and plant vegetative development by regulating the expression of genes implicated in cell wall biogenesis.}, keywords = {EXPRESSION; GENE; INHIBITION; TRANSCRIPTION FACTOR; ABSCISIC-ACID; PLANT DEVELOPMENT; Overexpression; gene silencing; gene overexpression; Arabidopsis thaliana; root hair; gibberellin; trichome initiation; zinc finger protein 3; ZFP5}, year = {2024}, eissn = {1664-462X}, orcid-numbers = {Benyó, Dániel/0000-0002-4537-2866; Zsigmond, Laura/0000-0002-1388-1762} } @article{MTMT:33713093, title = {Life style and structure differences between species of freshwater fish}, url = {https://m2.mtmt.hu/api/publication/33713093}, author = {Szűts, Viktória and Kelemen-Valkony, Ildikó and Ötvös, Ferenc and Repas, Zoltan and Kovács, András Sándor and Tóth, László and Kiss, András Attila and Lőrincz, Ádám and Szabó, P. Balázs and Gajdán, Krisztina and Kertai, Zoltán and Houshmand, Nazanin and Szutcs, Marcella and Obistioui, Diana and Velciov, Ariana B. and Halasy, Katalin and Deim, Zoltán and Deák, Dalma and Gál, József and Csanádi, József and Racskóné Domonkos, Ildikó}, journal-iso = {MED INT REV}, journal = {MEDICINA INTERNACIA REVUO}, volume = {30}, unique-id = {33713093}, issn = {0465-5435}, year = {2022}, pages = {98-106}, orcid-numbers = {Kiss, András Attila/0000-0003-2633-292X; Deim, Zoltán/0000-0003-3925-5564; Gál, József/0000-0002-4923-7282} } @CONFERENCE{MTMT:32871973, title = {BIOACTIVE COMPOUNDS IN NEWLY ISOLATED FRESHWATER MICROALGAE STRAINS: IMPACT TO THE FLESH QUALITY OF RAINBOW TROUT (ONCORHYNCHUS MYKISS)}, url = {https://m2.mtmt.hu/api/publication/32871973}, author = {Jakabné Sándor, Zsuzsanna and Ardó, László and Kanna, Sai Divya and Racskóné Domonkos, Ildikó and Ughy, Bettina and Perjéssy, Judit and Kóbori, Tímea Ottilia and Dergez, Ágnes Karolina}, booktitle = {XX. TOWARDS PRECISION FISH NUTRITION AND FEEDING ( International Symposium on Fish Nutrition and Feeding}, unique-id = {32871973}, year = {2022}, pages = {56}, orcid-numbers = {Jakabné Sándor, Zsuzsanna/0000-0002-5216-6964} } @article{MTMT:32763244, title = {Structure and principles of self-assembly of giant "sea urchin" type sulfonatophenyl porphine aggregates}, url = {https://m2.mtmt.hu/api/publication/32763244}, author = {Pleckaitis, Marijus and Habach, Fayez and Kontenis, Lukas and Steinbach, Gábor and Jarockyte, Greta and Kalnaityte, Agne and Racskóné Domonkos, Ildikó and Akhtar, Parveen and Alizadeh, Mehdi and Bagdonas, Saulius and Karabanovas, Vitalijus and Garab, Győző and Rotomskis, Ricardas and Barzda, Virginijus}, doi = {10.1007/s12274-021-4048-x}, journal-iso = {NANO RES}, journal = {NANO RESEARCH}, volume = {15}, unique-id = {32763244}, issn = {1998-0124}, abstract = {Principles of molecular self-assembly into giant hierarchical structures of hundreds of micrometers in size are studied in aggregates of meso-tetra(4-sulfonatophenyl)porphine (TPPS4). The aggregates form a central tubular core, which is covered with radially protruding filamentous non-branching aggregates. The filaments cluster and orient at varying angles from the core surface and some filaments form bundles. Due to shape resemblance, the structures are termed giant sea urchin (GSU) aggregates. Spectrally resolved fluorescence microscopy reveals J- and H-bands of TPPS4 aggregates in both the central core and the filaments. The fluorescence of the core is quenched while filaments exhibit strong fluorescence. Upon drying, the filament fluorescence gets quenched while the core is less affected, showing stronger relative fluorescence. Fluorescence-detected linear dichroism (FDLD) microscopy reveals that absorption dipoles corresponding to J-bands are oriented along the filament axis. The comparison of FDLD with scanning electron microscopy (SEM) reveals the structure of central core comprised of multilayer ribbons, which wind around the core axis forming a tube. Polarimetric second-harmonic generation (SHG) and third-harmonic generation microscopy exhibits strong signal from the filaments with nonlinear dipoles oriented close to the filament axis, while central core displays very low SHG due to close to centrosymmetric organization. Large chiral nonlinear susceptibility points to helical arrangement of the filaments. The investigation shows that TPPS4 molecules form distinct aggregate types, including chiral nanotubes and nanogranular aggregates that associate into the hierarchical GSU structure, prototypical to complex biological structures. The chiral TPPS4 aggregates can serve as harmonophores for nonlinear microscopy.}, keywords = {COMPLEX; ORGANIZATION; FLUORESCENCE; DYNAMICS; OPTICAL-PROPERTIES; Chemistry, Physical; COLLAGEN; CHIRALITY; Nanostructures; self-assembly; porphyrin; TPPS; Materials Science, Multidisciplinary; Nanoscience & Nanotechnology; meso-tetra(4-sulfonatophenyl)porphine (TPPS4) aggregates; harmonophores; polarimetric second harmonic generation microscopy}, year = {2022}, eissn = {1998-0000}, pages = {5527-5537}, orcid-numbers = {Steinbach, Gábor/0000-0001-7137-7030; Akhtar, Parveen/0000-0002-3264-7154} } @article{MTMT:32749652, title = {Trimeric Photosystem I facilitates energy transfer from phycobilisomes in Synechocystis sp. PCC 6803}, url = {https://m2.mtmt.hu/api/publication/32749652}, author = {Akhtar, Parveen and Biswas, Avratanu and Balog-Vig, Fanny Kata and Racskóné Domonkos, Ildikó and Kovács, László and Lambrev, Petar}, doi = {10.1093/plphys/kiac130}, journal-iso = {PLANT PHYSIOL}, journal = {PLANT PHYSIOLOGY}, volume = {189}, unique-id = {32749652}, issn = {0032-0889}, year = {2022}, eissn = {1532-2548}, pages = {827-838}, orcid-numbers = {Akhtar, Parveen/0000-0002-3264-7154} } @article{MTMT:32823174, title = {Salt Stress Induces Paramylon Accumulation and Fine-Tuning of the Macro-Organization of Thylakoid Membranes in Euglena gracilis Cells}, url = {https://m2.mtmt.hu/api/publication/32823174}, author = {Kanna, Sai Divya and Racskóné Domonkos, Ildikó and Kóbori, T.O. and Dergez, Ágnes Karolina and Böde, Kinga and Nagyapáti, Sarolta and Zsíros, Ottó and Ünnep, Renáta and Nagy, Gergely and Garab, Győző and Szilák, László and Solymosi, Katalin and Kovács, László and Ughy, Bettina}, doi = {10.3389/fpls.2021.725699}, journal-iso = {FRONT PLANT SCI}, journal = {FRONTIERS IN PLANT SCIENCE}, volume = {12}, unique-id = {32823174}, issn = {1664-462X}, year = {2021}, eissn = {1664-462X}, orcid-numbers = {Solymosi, Katalin/0000-0001-5246-2547} } @CONFERENCE{MTMT:32349113, title = {FIRST EXPERIENCE OF NEWLY ISOLATED FRESHWATER ALGAE STRAINS AS IMMUNSTIMULANTS FOR STERLET (ACIPENSER RUTHENUS) JUVENILES}, url = {https://m2.mtmt.hu/api/publication/32349113}, author = {Jakabné Sándor, Zsuzsanna and Bíró, Janka and Kóbori, Tímea Ottilia and Dergez, Ágnes Karolina and Sai, Divya Kanna and Racskóné Domonkos, Ildikó and Ughy, Bettina and Ardó, László}, booktitle = {Aquaculture Europe 21 : Abstracts}, unique-id = {32349113}, year = {2021}, pages = {596-597}, orcid-numbers = {Jakabné Sándor, Zsuzsanna/0000-0002-5216-6964} } @article{MTMT:32258462, title = {Lipid Polymorphism of the Subchloroplast—Granum and Stroma Thylakoid Membrane–Particles. II. Structure and Functions}, url = {https://m2.mtmt.hu/api/publication/32258462}, author = {Dlouhý, Ondřej and Karlický, Václav and Arshad, Rameez and Zsíros, Ottó and Racskóné Domonkos, Ildikó and Kurasová, Irena and Wacha, András Ferenc and Morosinotto, Tomas and Bóta, Attila and Kouřil, Roman and Špunda, Vladimír and Garab, Győző}, doi = {10.3390/cells10092363}, journal-iso = {CELLS-BASEL}, journal = {CELLS}, volume = {10}, unique-id = {32258462}, abstract = {In Part I, by using P-31-NMR spectroscopy, we have shown that isolated granum and stroma thylakoid membranes (TMs), in addition to the bilayer, display two isotropic phases and an inverted hexagonal (H-II) phase; saturation transfer experiments and selective effects of lipase and thermal treatments have shown that these phases arise from distinct, yet interconnectable structural entities. To obtain information on the functional roles and origin of the different lipid phases, here we performed spectroscopic measurements and inspected the ultrastructure of these TM fragments. Circular dichroism, 77 K fluorescence emission spectroscopy, and variable chlorophyll-a fluorescence measurements revealed only minor lipase- or thermally induced changes in the photosynthetic machinery. Electrochromic absorbance transients showed that the TM fragments were re-sealed, and the vesicles largely retained their impermeabilities after lipase treatments-in line with the low susceptibility of the bilayer against the same treatment, as reflected by our P-31-NMR spectroscopy. Signatures of H-II-phase could not be discerned with small-angle X-ray scattering-but traces of H-II structures, without long-range order, were found by freeze-fracture electron microscopy (FF-EM) and cryo-electron tomography (CET). EM and CET images also revealed the presence of small vesicles and fusion of membrane particles, which might account for one of the isotropic phases. Interaction of VDE (violaxanthin de-epoxidase, detected by Western blot technique in both membrane fragments) with TM lipids might account for the other isotropic phase. In general, non-bilayer lipids are proposed to play role in the self-assembly of the highly organized yet dynamic TM network in chloroplasts.}, year = {2021}, eissn = {2073-4409}, orcid-numbers = {Dlouhý, Ondřej/0000-0002-0694-928X; Karlický, Václav/0000-0002-7079-3160; Arshad, Rameez/0000-0001-9589-3312; Wacha, András Ferenc/0000-0002-9609-0893; Morosinotto, Tomas/0000-0002-0803-7591; Kouřil, Roman/0000-0001-8211-3348; Špunda, Vladimír/0000-0002-4467-1442} } @article{MTMT:32225509, title = {A mikroalgákban rejlő biotechnológiai lehetőségek, különös tekintettel az állati takarmányozásban}, url = {https://m2.mtmt.hu/api/publication/32225509}, isbn = {9789632699615}, author = {Kanna, Sai Divya and Racskóné Domonkos, Ildikó and Hódi, Barbara and Tóth, Viktória and Nagyapáti, Sarolta and Böde, Kinga and Lajkó, Dézi and Ardó, László and Jakabné Sándor, Zsuzsanna and Kóbori, Tímea Ottilia and Dergez, Ágnes Karolina and Ughy, Bettina}, journal-iso = {HALÁSZATFEJLESZTÉS}, journal = {HALÁSZATFEJLESZTÉS}, volume = {38}, unique-id = {32225509}, issn = {1219-4816}, year = {2021}, pages = {62-63}, orcid-numbers = {Jakabné Sándor, Zsuzsanna/0000-0002-5216-6964} }