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Petushkova E, Mayorova E, Tsygankov A. TCA Cycle Replenishing Pathways in Photosynthetic Purple Non-Sulfur Bacteria Growing with Acetate. Life (Basel) 2021; 11:711. [PMID: 34357087 PMCID: PMC8307300 DOI: 10.3390/life11070711] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/27/2021] [Accepted: 07/14/2021] [Indexed: 11/23/2022] Open
Abstract
Purple non-sulfur bacteria (PNSB) are anoxygenic photosynthetic bacteria harnessing simple organic acids as electron donors. PNSB produce a-aminolevulinic acid, polyhydroxyalcanoates, bacteriochlorophylls a and b, ubiquinones, and other valuable compounds. They are highly promising producers of molecular hydrogen. PNSB can be cultivated in organic waste waters, such as wastes after fermentation. In most cases, wastes mainly contain acetic acid. Therefore, understanding the anaplerotic pathways in PNSB is crucial for their potential application as producers of biofuels. The present review addresses the recent data on presence and diversity of anaplerotic pathways in PNSB and describes different classifications of these pathways.
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Affiliation(s)
- Ekaterina Petushkova
- Pushchino Scientific Center for Biological Research, Institute of Basic Biological Problems Russian Academy of Sciences, 2, Institutskaya Str, 142290 Pushchino, Moscow Region, Russia; (E.P.); (E.M.)
| | - Ekaterina Mayorova
- Pushchino Scientific Center for Biological Research, Institute of Basic Biological Problems Russian Academy of Sciences, 2, Institutskaya Str, 142290 Pushchino, Moscow Region, Russia; (E.P.); (E.M.)
- Pushchino State Institute of Natural Science, The Federal State Budget Educational Institution of Higher Education, 3, Prospekt Nauki, 142290 Pushchino, Moscow Region, Russia
| | - Anatoly Tsygankov
- Pushchino Scientific Center for Biological Research, Institute of Basic Biological Problems Russian Academy of Sciences, 2, Institutskaya Str, 142290 Pushchino, Moscow Region, Russia; (E.P.); (E.M.)
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Mironov AF, Grin MA, Pantushenko IV, Ostroverkhov PV, Ivanenkov YA, Filkov GI, Plotnikova EA, Karmakova TA, Starovoitova AV, Burmistrova NV, Yuzhakov VV, Romanko YS, Abakumov MA, Ignatova AA, Feofanov AV, Kaplan MA, Yakubovskaya RI, Tsigankov AA, Majouga AG. Synthesis and Investigation of Photophysical and Biological Properties of Novel S-Containing Bacteriopurpurinimides. J Med Chem 2017; 60:10220-10230. [PMID: 29202233 DOI: 10.1021/acs.jmedchem.7b00577] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Novel hybrid molecule containing 2-mercaptoethylamine was synthesized starting from O-propyloxime-N-propoxy bacteriopurpurinimide (dipropoxy-BPI), which was readily oxidized in oxygen atmosphere yielding the corresponding disulfide analogue (disulfide-BPI). Spectral, photophysical, photodynamic, and biological properties of compound were properly evaluated. Compounds bearing disulfide moiety can directly interact with glutathione (GSH), thereby reducing its intracellular concentration. Indeed, mice sarcoma S37 cell line was treated in vitro with disulfide-BPI, yielding a CC50 value of 0.05 ± 0.005 μM. A relatively high level of singlet oxygen was detected. It was demonstrated (by fluorescence) that the PS was rapidly accumulated in a cancer nest (S37) at a relatively high level after 2 h upon intravenous administration. After 24 h, no traces of the molecule were detected in the tumor mass. Moreover, high photodynamic efficiency was demonstrated at doses of 150-300 J/cm2 against two different in vivo tumor models, achieving 100% regression of cancer growth.
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Affiliation(s)
- Andrey F Mironov
- Moscow Technological University , 86 Vernadsky Avenue, Moscow 119571, Russia
| | - Mikhail A Grin
- Moscow Technological University , 86 Vernadsky Avenue, Moscow 119571, Russia
| | - Ivan V Pantushenko
- Moscow Technological University , 86 Vernadsky Avenue, Moscow 119571, Russia
| | - Petr V Ostroverkhov
- Moscow Technological University , 86 Vernadsky Avenue, Moscow 119571, Russia
| | - Yan A Ivanenkov
- Chemistry Department, Moscow State University , Leninskie Gory, Building 1/3, GSP-1, Moscow 119991, Russia.,Institute of Biochemistry and Genetics Ufa Science Centre Russian Academy of Sciences (IBG RAS), Ufa, Bashkortostan, Russian Federation
| | - Gleb I Filkov
- Moscow Institute of Physics and Technology (MIPT) , 9 Institutskiy Per., Dolgoprudny, Moscow Region 141700, Russia
| | - Ekaterina A Plotnikova
- Branch, National Medical Radiology Research Center, P. A. Herzen Moscow Oncology Research Institute , 3 2nd Botkinskiy Proezd, Moscow 125284, Russia
| | - Tatyana A Karmakova
- Branch, National Medical Radiology Research Center, P. A. Herzen Moscow Oncology Research Institute , 3 2nd Botkinskiy Proezd, Moscow 125284, Russia
| | - Anna V Starovoitova
- A. Tsyb Medical Radiological Research Centre (A. Tsyb MRRC) , 10 Zhukov Street, Obninsk, Kaluga Region, 249031, Russia
| | - Nelli V Burmistrova
- A. Tsyb Medical Radiological Research Centre (A. Tsyb MRRC) , 10 Zhukov Street, Obninsk, Kaluga Region, 249031, Russia
| | - Vadim V Yuzhakov
- A. Tsyb Medical Radiological Research Centre (A. Tsyb MRRC) , 10 Zhukov Street, Obninsk, Kaluga Region, 249031, Russia
| | - Yuri S Romanko
- A. Tsyb Medical Radiological Research Centre (A. Tsyb MRRC) , 10 Zhukov Street, Obninsk, Kaluga Region, 249031, Russia
| | - Maxim A Abakumov
- Pirogov Russian National Research Medical University (RNRMU) , 1 Ostrovitianov Street, Moscow 117997, Russia.,National University of Science and Technology MISiS , Leninsky Prospect 4, Moscow 119049, Russia
| | - Anastasiya A Ignatova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS , GSP-7, Ulitsa Miklukho-Maklaya 16/10, Moscow 117997, Russia.,Biology Faculty, Lomonosov Moscow State University , Leninskie Gory 1/70, Moscow 119992, Russia
| | - Alexey V Feofanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS , GSP-7, Ulitsa Miklukho-Maklaya 16/10, Moscow 117997, Russia.,Biology Faculty, Lomonosov Moscow State University , Leninskie Gory 1/70, Moscow 119992, Russia
| | - Mikhail A Kaplan
- A. Tsyb Medical Radiological Research Centre (A. Tsyb MRRC) , 10 Zhukov Street, Obninsk, Kaluga Region, 249031, Russia
| | - Raisa I Yakubovskaya
- Branch, National Medical Radiology Research Center, P. A. Herzen Moscow Oncology Research Institute , 3 2nd Botkinskiy Proezd, Moscow 125284, Russia
| | - Anatoliy A Tsigankov
- Institute of Fundamental Problems of Biology, Russian Academy of Sciences Pushino, Moscow Region 142290, Russia
| | - Alexander G Majouga
- Chemistry Department, Moscow State University , Leninskie Gory, Building 1/3, GSP-1, Moscow 119991, Russia.,National University of Science and Technology MISiS , Leninsky Prospect 4, Moscow 119049, Russia
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Eltsova Z, Bolshakov M, Tsygankov A. Effect of light intensity and various organic acids on the growth of Rhodobacter sphaeroides LHII-deficient mutant in a turbidostat culture. PHOTOSYNTHESIS RESEARCH 2016; 130:307-316. [PMID: 27034065 DOI: 10.1007/s11120-016-0254-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 03/21/2016] [Indexed: 06/05/2023]
Abstract
The composition of photosynthetic apparatus of Rhodobacter sphaeroides wild strain 2.4.1 and its LHII-deficient mutant DBCΩ was compared. The absence of LHII in the mutant was confirmed by comparison of chromatophores spectra and by the absence of electrophoretic band corresponding to LHII complex. Continuous turbidostat cultures of wild strain and its LHII-deficient mutant were compared in response to different light intensities. Cultures were grown using lactate, mixture of lactate and acetate or succinate as carbon source. For comparative analysis, an approximation of experimental data by Monod and Gompertz equations were used. Cultures of DBCΩ had lower growth rates than wild strain when grown on lactate as electron donor and carbon source. Cultures of both strains grown on lactate and acetate or on succinate had similar growth rates. The cultures showed maximum growth rates when grown with succinate. Bacteriochlorophyll a content increased in both strains with decrease of incident light intensity. However, the variation of Bchl a content in wild strain was much more significant. Under light-limiting conditions, bacteriochlorophyll a content in DBCΩ was 4-5 times lower than in the wild strain. Under light-saturating conditions, it was only 1.5-2.5 times lower. Growing with lactate or with lactate and acetate, the mutant switched from light limitation under low light intensities to limitation by organic acids under higher light, whereas the parental strain had similar switch of limiting factor only when growing with lactate and acetate mixture. DBCΩ mutant has higher minimal light intensity enabling growth on any organic acid as a substrate. When growing with lactate or with lactate and acetate, the mutant reached maximum growth rate at lower light intensities than the wild strain. This phenomenon was observed for the first time. Taking into account the concentration of BChl a under light-limiting conditions, the thickness of the suspension capable of effective light absorption could be increased by 4-5 times, which is favorable for intensive cultivation.
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Affiliation(s)
- Zinaida Eltsova
- Institute of Basic Biological Problems, Russian Academy of Sciences, 2, Institutskaya str, Pushchino, Moscow region, Russia, 142290.
| | - Maxim Bolshakov
- Institute of Basic Biological Problems, Russian Academy of Sciences, 2, Institutskaya str, Pushchino, Moscow region, Russia, 142290
| | - Anatoly Tsygankov
- Institute of Basic Biological Problems, Russian Academy of Sciences, 2, Institutskaya str, Pushchino, Moscow region, Russia, 142290
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