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A three-step process of manganese acquisition and storage in the microalga Chlorella sorokiniana
dc.creator | Vojvodić, Snežana | |
dc.creator | Dimitrijević, Milena | |
dc.creator | Žižić, Milan | |
dc.creator | Dučić, Tanja | |
dc.creator | AQUILANTI, Giuliana | |
dc.creator | Stanić, Marina | |
dc.creator | Zechmann, Bernd | |
dc.creator | Danilović Luković, Jelena | |
dc.creator | Stanković, Dalibor M. | |
dc.creator | Opačić, Miloš | |
dc.creator | Morina, Arian | |
dc.creator | Pittman, Jon K. | |
dc.creator | Spasojević, Ivan | |
dc.date.accessioned | 2023-11-27T13:07:35Z | |
dc.date.available | 2024-02-05 | |
dc.date.issued | 2023 | |
dc.identifier.issn | 0022-0957 | |
dc.identifier.uri | http://rimsi.imsi.bg.ac.rs/handle/123456789/2378 | |
dc.description.abstract | Metabolism of metals in microalgae and adaptation to metal excess are of significant environmental importance. We report a three-step mechanism that the green microalga Chlorella sorokiniana activates during the acquisition of and adaptation to manganese (Mn), which is both an essential trace metal and a pollutant of waters. In the early stage, Mn2+ was mainly bound to membrane phospholipids and phosphates in released mucilage. The outer cell wall was reorganized and lipids were accumulated, with a relative increase in lipid saturation. Intracellular redox settings were rapidly altered in the presence of Mn excess, with increased production of reactive oxygen species that resulted in lipid peroxidation and a decrease in the concentration of thiols. In the later stage, Mn2+ was chelated by polyphosphates and accumulated in the cells. The structure of the inner cell wall was modified and the redox milieu established a new balance. Polyphosphates serve as a transient Mn2+ storage ligand, as proposed previously. In the final stage, Mn was stored in multivalent Mn clusters that resemble the structure of the tetramanganese–calcium core of the oxygen-evolving complex. The present findings elucidate the bioinorganic chemistry and metabolism of Mn in microalgae, and may shed new light on water-splitting Mn clusters. | sr |
dc.language.iso | en | sr |
dc.publisher | Oxford University Press | sr |
dc.relation | NATO Science for Peace and Security Programme - G5320 | sr |
dc.relation | ICTP-ELETTRA Users Program - 20210133 | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200053/RS// | sr |
dc.rights | embargoedAccess | sr |
dc.source | Journal of Experimental Botany | sr |
dc.subject | cluster | sr |
dc.subject | ligand | sr |
dc.subject | metals | sr |
dc.subject | microalgae | sr |
dc.subject | oxidative stress | sr |
dc.subject | polyphosphates | sr |
dc.subject | X-ray absorption fine structure | sr |
dc.title | A three-step process of manganese acquisition and storage in the microalga Chlorella sorokiniana | sr |
dc.type | article | sr |
dc.rights.license | ARR | sr |
dc.citation.epage | 1122 | |
dc.citation.issue | 3 | |
dc.citation.rank | aM21~ | |
dc.citation.spage | 1107 | |
dc.citation.volume | 74 | |
dc.identifier.doi | 10.1093/jxb/erac472 | |
dc.identifier.fulltext | http://rimsi.imsi.bg.ac.rs/bitstream/id/6164/JEB-accepted.pdf | |
dc.type.version | acceptedVersion | sr |