Publisher Correction: Light-driven formation of manganese oxide by today’s photosystem II supports evolutionarily ancient manganese-oxidizing photosynthesis

Chernev, Petko; Fischer, Sophie; Hoffmann, Jutta; Oliver, Nicholas H.S.; Assunção, Ricardo; Yu, Boram; Burnap, Robert L.; Zaharieva, Ivelina; Nürnberg, Dennis J.; Haumann, Michael; Dau, Holger

doi:10.1038/s41467-020-20868-9

Cited by 2 publications

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“…The rice caryopsis was green during the early stage ( Fig. 1A ) and each cross cell contains 2–5 chloroplasts ( Krishnan and Dayanandan, 2003 ; Chernev et al , 2021 ). The high expression of Mn transporter genes (e.g.…”

Section: Discussionmentioning

confidence: 99%

Nutrient accumulation and transcriptome patterns during grain development in rice

Ren

Kopittke

Zhao

et al. 2022

Journal of Experimental Botany

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Rice is an important source of calories and mineral nutrients for more than half of the world's population. The accumulation of essential and toxic mineral elements in rice grain affects its nutritional quality and safety. However, the patterns and processes by which different elements progressively accumulate during grain filling remain largely unknown. In the present study, we investigated temporal changes in dry matter, elemental concentrations, and the transcriptome in the grain of field-grown rice. We also investigated the effects of seed setting rate and the position of grain within rice panicle on element accumulation. Three different patterns of accumulation were observed: (i) elements including K, Mn, B, and Ca showed an early accumulation pattern; (ii) dry matter and elements including N, P, S, Mg, Cu, Zn, Mo, As, and Cd showed a mid-accumulation pattern; and (iii) elements such as Fe showed a gradual increase pattern. These different accumulation patterns can be explained by the differences in the biogeochemical behavior of the various elements in the soil, as well as differences in plant nutrient redistribution, gene expression, and the sink-source relationship. These results improve our knowledge of the dynamics of elemental accumulation in rice grain and are helpful for identification of functional genes mediating the translocation of elements to grain.

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Section: Discussionmentioning

confidence: 99%

Nutrient accumulation and transcriptome patterns during grain development in rice

Ren

Kopittke

Zhao

et al. 2022

Journal of Experimental Botany

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Genomic insights into the alphaproteobacterium Georhizobium sp. MAB10 revealed a pathway of Mn(II) oxidation-coupled anoxygenic photoautotrophy: a novel understanding of the biotic process in deep-sea ferromanganese nodule formation

Xu,

Zhang,

Song

et al. 2024

mBio

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Under light conditions, Mn(II) facilitates the photoautotrophic growth of Georhizobium sp. MAB10, a strain derived from deep-sea ferromanganese nodules, along with the generation of dark Mn oxides (β-MnO 2 ). This study investigated the genetic basis of Mn(II) oxidation-coupled anoxygenic photoautotrophy using genome sequencing and biochemical assays of strain MAB10. Preliminary results indicated the presence of genes encoding a functional pheophytin-quinone-type photosynthetic reaction center and a putative key enzyme for Mn(II) oxidation, namely FtsP/CotA-like multicopper oxidase GE001273. Under light conditions, Mn(II) significantly reduced the respiration rate and elevated the intracellular NADH/NAD total ratio. This suggested that Mn(II)-derived electrons entered the cyclic photophosphorylation, partially replacing the oxidative phosphorylation for ATP production and enhancing the electron flow to complex I for NADH generation. In vitro enzymatic studies confirmed that GE001273 was a catalyst for Mn(II) oxidation in the outer membrane. Comprehensive genomic analyses of respiration and carbon and nitrogen metabolism revealed the high ecophysiological flexibility of strain MAB10 during Mn(II) oxidation-coupled anoxygenic photoautotrophy in deep-sea habitats. These analyses provided insights into bacterial Mn(II) oxidation-coupled anoxygenic photoautotrophy during microorganism-mediated deep-sea ferromanganese nodule formation. IMPORTANCE Microorganisms are believed to participate in the biotic process of deep-sea ferromanganese nodule formation [Mn(II) oxidation]. Despite the multitude of studies and reviews focusing on the details of Mn(II) oxidation catalyzed by diverse heterotrophs, the mechanistic roles of manganese chemolithotrophs from ferromanganese nodules remain unclear. We demonstrate that strain Georhizobium sp. MAB10 can utilize Mn(II)-derived electrons for photoautotrophic growth, with concomitant generation of dark β-MnO 2 type Mn oxides under near-infrared light condition. This study uses genomic and biochemical assays to explore the genetic basis of Mn(II) oxidation-coupled anoxygenic photoautotrophy. The comprehensive analyses of respiration and carbon and nitrogen metabolism further elucidated the high ecophysiological flexibility of strain MAB10 in deep-sea habits. These findings expand our understanding of the role of chemolithotrophs in deep-sea ferromanganese nodule formation and justify further investigations into the molecular basis for Mn(II) oxidation-coupled anoxygenic photoautotrophy.

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Publisher Correction: Light-driven formation of manganese oxide by today’s photosystem II supports evolutionarily ancient manganese-oxidizing photosynthesis

Abstract: A Correction to this paper has been published: https://doi.org/10.1038/s41467-020-20868-9

Cited by 2 publications

References 0 publications

Nutrient accumulation and transcriptome patterns during grain development in rice

Nutrient accumulation and transcriptome patterns during grain development in rice

Genomic insights into the alphaproteobacterium Georhizobium sp. MAB10 revealed a pathway of Mn(II) oxidation-coupled anoxygenic photoautotrophy: a novel understanding of the biotic process in deep-sea ferromanganese nodule formation

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