<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Advances in Chemical Physics</journal-id><journal-title-group><journal-title xml:lang="en">Advances in Chemical Physics</journal-title><trans-title-group xml:lang="ru"><trans-title>Физиология растений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0015-3303</issn><issn publication-format="electronic">3034-6126</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">648141</article-id><article-id pub-id-type="doi">10.31857/S0015330322600814</article-id><article-id pub-id-type="edn">PZENWD</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Ca<sup>2+</sup>-dependent regulation of the proton permeability of the inner membrane of lupine cotyledon mitochondria</article-title><trans-title-group xml:lang="ru"><trans-title>Са<sup>2+</sup>-зависимая регуляция протонной проницаемости внутренней мембраны митохондрий семядолей люпина</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shugaev</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Шугаев</surname><given-names>А. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>fizrast@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Butsanets</surname><given-names>P. A.</given-names></name><name xml:lang="ru"><surname>Буцанец</surname><given-names>П. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>fizrast@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shugaeva</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Шугаева</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>fizrast@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Timiryazev Institute of Plant Physiology, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт физиологии растений им. К.А. Тимирязева Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-07-01" publication-format="electronic"><day>01</day><month>07</month><year>2023</year></pub-date><volume>70</volume><issue>4</issue><fpage>372</fpage><lpage>381</lpage><history><date date-type="received" iso-8601-date="2025-01-28"><day>28</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Shugaev A.G., Butsanets P.A., Shugaeva N.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, А.Г. Шугаев, П.А. Буцанец, Н.А. Шугаева</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Shugaev A.G., Butsanets P.A., Shugaeva N.A.</copyright-holder><copyright-holder xml:lang="ru">А.Г. Шугаев, П.А. Буцанец, Н.А. Шугаева</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0015-3303/article/view/648141">https://journals.eco-vector.com/0015-3303/article/view/648141</self-uri><abstract xml:lang="en"><p>change in volume, and proton permeability of the inner membrane of mitochondria isolated from cotyledons of etiolated seedlings of narrow-leaved lupine (<italic>Lupinus angustifolius</italic> L.) was studied. The mitochondria used in the work were characterized by a strong coupling of oxidation and phosphorylation processes. The high functional activity of mitochondria was confirmed by their ability to generate a transmembrane gradient of protons on the inner membrane (membrane potential or ∆Ψ) during the oxidation of succinate and also sustainably maintain it for a long time , both due to the operation of the electron transport chain and due to ATP hydrolysis under conditions of anaerobiosis. It was shown that the presence of 60–120 µM CaCl<sub>2</sub> in the mitochondrial incubation medium had no significant effect on the rate of succinate oxidation and the parameters of oxidative phosphorylation; however, it induced ∆Ψ dissipation under conditions of oxygen depletion in the incubation medium. The most complete removal Ca<sup>2+</sup> from the medium in the presence of chelators (EGTA, EDTA) prevented the membrane potential dissipation. Ca<sup>2+</sup>-dependent depolarization of the inner membrane was inhibited by dithiothreitol, suggesting involvement in this process of reactive oxygen species. The reset of the membrane potential was not accompanied by swelling of mitochondria and was not sensitive to cyclosporine A. Using metallochromic Ca<sup>2+</sup>-indicator arsenazo III, it was shown that the mitochondria of lupine cotyledons are able to actively absorb exogenous Ca<sup>2+</sup> and store it in the matrix. Ca<sup>2+</sup>-induced dissipation of ∆Ψ under conditions of anaerobiosis was accompanied by the release of Ca<sup>2+</sup> from mitochondria, the rate of which sharply increased in the presence of calcium ionophore A23 (A23187). It is assumed that the accumulation of Ca<sup>2+</sup> and an increase in the level of reactive oxygen species in the matrix induces reversible permeabilization of the inner mitochondrial membrane of lupine cotyledons under conditions of anaerobiosis, which is due to the opening of a pore of nonspecific permeability in a state of low conductivity permeable to protons and, possibly, to other small cations (Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>).</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324498512">Изучено влияние экзогенного Са<sup>2+</sup> на дыхание, генерацию мембранного потенциала, изменение объема и проницаемость для протонов внутренней мембраны митохондрий, выделенных из семядолей этиолированных проростков люпина узколистного (<italic>Lupinus angustifolius</italic> L.). Используемые в работе митохондрии характеризовались прочным сопряжением процессов окисления и фосфорилирования. Высокая функциональная активность митохондрий подтверждалась их способностью генерировать при окислении сукцината трансмембранный градиент протонов на внутренней мембране (мембранный потенциал или ∆Ψ), а также устойчиво поддерживать его в течение длительного времени, как за счет работы электрон-транспортной цепи, так и за счет гидролиза АТФ в условиях анаэробиоза. Показано, что присутствие 60–120 мкМ СаСl<sub>2</sub> в среде инкубации митохондрий не оказывало существенного влияния на скорость окисления сукцината и параметры окислительного фосфорилирования, однако индуцировало диссипацию ∆Ψ в условиях исчерпания кислорода в среде инкубации. Максимально полное удаление Са<sup>2+</sup> из среды в присутствии хелаторов (ЭГТА, ЭДТА) предотвращало сброс мембранного потенциала. Са<sup>2+</sup>-зависимая деполяризация внутренней мембраны ингибировалась дитиотрейтолом, что предполагает участие в этом процессе активных форм кислорода. Сброс мембранного потенциала не сопровождался набуханием митохондрий и не был чувствителен к циклоспорину А. С использованием металлохромного Са<sup>2+</sup>-индикатора арсеназо III, было показано, что митохондрии семядолей люпина способны активно поглощать экзогенный Са<sup>2+</sup> и накапливать его в матриксе. Са<sup>2+</sup>-индуцируемая диссипация ∆Ψ в условиях анаэробиоза сопровождалась выходом Са<sup>2+</sup> из митохондрий, скорость которого резко возрастала в присутствии кальциевого ионофора А23 (А23187). Предполагается, что накопление Са<sup>2+</sup> и повышение уровня активных форм кислорода в матриксе, индуцирует в условиях анаэробиоза обратимую пермеабилизацию внутренней мембраны митохондрий семядолей люпина, которая обусловлена открытием поры неспецифической проницаемости в состоянии низкой проводимости, проницаемой для протонов и, возможно, для других небольших катионов (Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>).</p></trans-abstract><kwd-group xml:lang="en"><kwd>Lupinus angustifolius</kwd><kwd>mitochondria</kwd><kwd>membrane potential</kwd><kwd>succinate oxidation</kwd><kwd>inner membrane permeability</kwd><kwd>lupine cotyledons</kwd><kwd>calcium transport</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Lupinus angustifolius</kwd><kwd>митохондрии</kwd><kwd>мембранный потенциал</kwd><kwd>окисление сукцината</kwd><kwd>проницаемость внутренней мембраны</kwd><kwd>семядоли люпина</kwd><kwd>транспорт кальция</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Azzolin L., von Stockum S., Basso E., Petronilli V., Forte M.A., Bernardi P. The mitochondrial permeability transition from yeast to mammals // FEBS Lett. 2010. V. 584. P. 2504. https://doi.org/10.1016/j.febslet.2010.04.023</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Bernardi P., Rasola A., Forte M., Lippe G. The mitochondrial permeability transition pore: channel formation by F-ATP synthase, integration in signal transduction, and role in pathophysiology // Physiol. Rev. 2015. V. 95. P. 111. https://doi.org/10.1152/physrev.00001.2015</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Vercesi A., Castilho R.F., Kowaltowski A., de Oliveira H.C.F., de Souza-Pinto N.C., Figuella T.R., Busanello E.N.B. Mitochondrial calcium transport and the redox nature of the calcium-induced membrane permeability transition // Free Radical Biol. Med. 2018. V. 129. P. 1. https://doi.org/10.1016/j.freeradbiolmed.2018.08.034</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Ichas F., Mazat J.-P. From calcium signaling to cell death: two conformations for the mitochondrial permeability transition pore. Switching from low- to high-conductance state // Biochim. Biophys. Acta. 1998. V. 1366. P. 33.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Sileikyte J., Forte M. The mitochondrial permeability transition in mitochondrial disorders // Oxidative medicine and cellular longevity. 2019. art. ID 3403075. https://doi.org/10.1155/2019/3403075</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Tajeddine N. How do reactive oxygen species and calcium trigger mitochondrial membrane permeabilisation? // Biochim. Biophys. Acta. 2016. V. 1860. P. 1079. https://doi.org/10.1016/j.bbagen.2016.02.013</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Zancani M., Casolo V., Petrussa E., Peresson C., Patui S., Bertolini A., De Col V., Braidot E., Boscuttiand F., Vianello A. The permeability transition in plant mitochondria: the missing link // Front.Plant Sci. 2015. V. 6. Art. 1120. https://doi.org/10.3389/fpls.2015.01120</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Fortes F., Castilho R.F., Catisti R., Carnieri E., Vercesi A.E. Ca2+ induces a cyclosporin A-insensitive permeability transition pore in isolated potato tuber mitochondria mediated by reactive oxygen species // J. Bioenerg. Biomembr. 2001. V. 33. P. 43. https://doi.org/10.1023/A:1005672623709</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Arpagaus S., Rawyler A., Braendle R. Occurrence and characteristics of the mitochondrial permeability transition in plants // J. Biol. Chem. 2002. V. 277. P. 1780. https://doi.org/10.1074/jbc.M109416200</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Virolainen E., Blokhina О., Fagersted K. Ca2+-induced high amplitude swelling and cytochrome c release from wheat (Triticum aestivum L.) mitochondria under anoxic stress // Ann. Bot. 2002. V. 90. P. 509. https://doi:101093/aob/mcf221</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Martins I.S., Vercesi A.E. Some characteristics of Ca2+ transport in plant mitochondria // Biochem. Biophys. Res. Commun. 1985. V. 129. P. 943. https://doi.org/10.1016/0006-291X(85)91982-5</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>De Col V., Petrussa E., Casolo V., Braidot E., Lippe G., Filippo A., Peresson C., Bertolini A., Giorgio V., Checcgttto V., Vianello A., Bernardi P., Zancani M. Properties of the permeability transition of pea steam mitochondria // Front. Physiol. 2018. V. 9. P. 1626. https://doi.org/10.3389/fphys.2018.01626</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Petrussa E., Casolo V., Peresson C., Braidot E., Vianello A., Macri F. The K+ ATP channel is involved in a low-amplitude permeability transition in plant mitochondria // Mitochondrion. 2004. V. 3. P. 297. https://doi.org/10.1016/j.mito.2004.01.002</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Шугаев А.Г., Буцанец П.А., Шугаева Н.А. Салициловая кислота индуцирует протонную проницаемость внутренней мембраны митохондрий семядолей люпина // Физиология растений. 2016. Т. 63. С. 765. https://doi.org/10.7868/S0015330316060099</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Буцанец П.А., Шугаева Н.А., Шугаев А.Г. Влияние мелатонина и салициловой кислоты на генерацию АФК митохондриями семядолей люпина // Физиология растений. 2021. Т. 68. С. 421. https://doi.org/10.31857/S0015330321040035</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Шугаев А.Г., Буцанец П.А., Андреев И.М., Шугаева Н.А. Влияние салициловой кислоты на метаболическую активность митохондрий растений // Физиология растений. 2014. Т. 61. С. 555. https://doi.org/10.7868/S0015330314040186</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Chance B., Williams G.R. The respiratory chain and oxidative phosphorylation // Adv. Enzymol. 1956. V. 17. P. 65.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Bredford M.M. A rapid and sensitive method the quantitation of microgram quatities of protein utilizing the principle of protein-die binding // Anal. Biochem. 1976. V. 72. P. 248. https://doi.org/10.1016/0003-2697(76)90527-3</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Moore A.L., Bonner W.D. Measurements of membrane potentials in plant mitochondria with the safranine method // Plant Physiol. 1982. V. 70. P. 415. https://doi.org/10.1104/pp.70.5.1271</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Scarpa A. Measurements of cation transport with metallochromic indicators // Met. Enzymol. 1979. V. 56. P. 301. https://doi.org/10.1016/0076-6879(79)56030-3</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Silva M.A.P., Carnieri E.G.S., Vercesi A. Calcium transport by corn mitochondria // Plant Physiol. 1992. V. 98. P. 452. https://doi.org/10.1104/pp.98.2.452</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Curtis M.J., Wolpert T.J. The oat mitochondrial permeability transition and its implication in victorin binding and induced cell death // Plant J. 2002. V. 23. P. 295. http://doi.org/101046/j.0960-7412.2001.01213.x</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Deryabina Y.I., Bazhenova E.N., Saris N.-E.L., Zvyagilskaya R.A. Ca2+ efflux in mitochondria from the yeast Endomyces magnusii // J. Biol. Chem. 2001. V. 276. P. 47801. https://doi.org/10.1074/jbc.M103685200</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Wagner S., De Bortoli S., Schwarzlander M., Szabo I. Regulation of mitochondrial calcium in plants versus animals // J. Exp. Bot. 2016. V. 67. P. 3809. https://doi.org/10.1093/jxb/erw100</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Akerman K.E.G., Moore A.L. Phosphate dependent, ruthenium red insensitive Ca2+ uptake in mung bean mitochondria // Biochem. Biophys. Res. Commun. 1983. V. 114. P. 1176. https://doi.org/10.1016/0006-291x(83)90686-1</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Blokhina O.B., Chirkova T.V., Fagerstedt K.V. Anoxic stress leads to hydrogen peroxide formation in plant cells // J. Exp. Bot. 2001. V. 52. P. 1179. https://doi.org/10.1093/jexbot/52.359.1179</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Chavez E., Melendes E., Zazueta C., Reyes-Vivas H., Perales S.G. Membrane permeability transition as induced by dysfunction of the electron transport chain // Biochem. Mol. Biol. Int. 1997. V. 41. P. 961. https://doi.org/10.1080/15216549700202021</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Bernardi P. The mitochondrial permeability transition pore: a mystery solved? // Front. Fhysiol. 2013. V. 4. Art. 95. https://doi.org/10.3389/fphys.2013.00095</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>Bernardi P., Petronilli V. The permeability transition pore as a mitochondrial calcium release channel: a critical appraisal // J. Bioenerg. Biomembr. 1996. V. 28. P. 131. https://doi.org/10.1007/BF02110643</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Huser J., Blatter L. Fluctuation in mitochondrial membrane potential caused by repetitive gating of the permeability transition pore // Biochem J. 1999. V. 343. P. 311. https://doi.org/10.1042/bj3430311</mixed-citation></ref><ref id="B31"><label>31.</label><mixed-citation>De Marchi E., Bonora M., Giorgi C., Pinton P. The mitochondrial permeability transition pore is a dispensable element for mitochondrial calcium efflux // Cell Calcium. 2014. V. 56. P. 1. https://doi.org/10.1016/j.ceca.2014.03.004</mixed-citation></ref></ref-list></back></article>
