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Sun Z, Wei C, Wu S, Zhang W, Song R, Hu D. Synthesis, Anti-Potato Virus Y Activities, and Interaction Mechanisms of Novel Quinoxaline Derivatives Bearing Dithioacetal Moiety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7029-7038. [PMID: 35649047 DOI: 10.1021/acs.jafc.2c01898] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Quinoxaline and its derivatives are important functional molecules with a broad range of applications. Disclosed here is a design and synthesis of a series of novel quinoxaline derivatives containing dithioacetal moieties as well as their antiviral activities against potato virus Y (PVY). The compound D30 was developed on the basis of the three-dimensional quantitative structure-activity relationship. The anti-PVY activity test showed that the half maximal effective concentration of the anti-PVY protective activity of compound D30 is 197 μg/mL, which was better than the control agents ningnanmycin (423 μg/mL) and xiangcaoliusuobingmi (281 μg/mL). Significantly, compound D30 can increase defense enzyme activity and chlorophyll content, promote photosynthesis by accelerating carbon fixation in tobacco, and further improve plant disease resistance. All of these results suggest that compound D30 could be employed as a lead compound for novel PVY inhibitor discovery.
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Affiliation(s)
- Zhongrong Sun
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Chunle Wei
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Sikai Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Wenbo Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Runjiang Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
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Tamoi M, Shigeoka S. Diversity of regulatory mechanisms of photosynthetic carbon metabolism in plants and algae. Biosci Biotechnol Biochem 2015; 79:870-6. [PMID: 25776275 DOI: 10.1080/09168451.2015.1020754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
To clarify the regulatory mechanisms of the Calvin cycle in algae, we analyzed the molecular properties of the enzymes involved in this cycle. We demonstrated that these enzymes were not regulated by redox modulation through the ferredoxin/thioredoxin system under light/dark conditions and were not sensitive to treatments with hydrogen peroxide in vitro, unlike the chloroplastic thiol-modulated enzymes of plants. On the other hand, we found that cyanobacteria possessed a unique enzyme involved in the Calvin cycle. The CP12 protein played an important role in regulating carbon metabolism in the Calvin cycle in cyanobacteria and eukaryotic algae. This review described the regulatory mechanisms of the Calvin cycle in algae and also the effects of alterations to photosynthetic carbon metabolism on plant productivity, carbon partitioning, and the carbon/nitrogen balance using transgenic plants expressing algal genes.
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Affiliation(s)
- Masahiro Tamoi
- a Faculty of Agriculture, Department of Advanced Bioscience , Kinki University , Nara , Japan
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Liu XL, Yu HD, Guan Y, Li JK, Guo FQ. Carbonylation and loss-of-function analyses of SBPase reveal its metabolic interface role in oxidative stress, carbon assimilation, and multiple aspects of growth and development in Arabidopsis. MOLECULAR PLANT 2012; 5:1082-99. [PMID: 22402261 DOI: 10.1093/mp/sss012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Sedoheptulose-1,7-bisphosphatase (SBPase) is a Calvin cycle enzyme and functions in photosynthetic carbon fixation. We found that SBPase was rapidly carbonylated in response to methyl viologen (MV) treatments in detached leaves of Arabidopsis plants. In vitro activity analysis of the purified recombinant SBPase showed that SBPase was carbonylated by hydroxyl radicals, which led to enzyme inactivation in an H(2)O(2) dose-dependent manner. To determine the conformity with carbonylation-caused loss in enzymatic activity in response to stresses, we isolated a loss-of-function mutant sbp, which is deficient in SBPase-dependent carbon assimilation and starch biosynthesis. sbp mutant exhibited a severe growth retardation phenotype, especially for the developmental defects in leaves and flowers where SBPASE is highly expressed. The mutation of SBPASE caused growth retardation mainly through inhibition of cell division and expansion, which can be partially rescued by exogenous application of sucrose. Our findings demonstrate that ROS-induced oxidative damage to SBPase affects growth, development, and chloroplast biogenesis in Arabidopsis through inhibiting carbon assimilation efficiency. The data presented here provide a case study that such inactivation of SBPase caused by carbonyl modification may be a kind of adaptation for plants to restrict the operation of the reductive pentose phosphate pathway under stress conditions.
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Affiliation(s)
- Xun-Liang Liu
- The National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research (Shanghai), Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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Hamamoto K, Aki T, Shigyo M, Sato S, Ishida T, Yano K, Yoneyama T, Yanagisawa S. Proteomic characterization of the greening process in rice seedlings using the MS spectral intensity-based label free method. J Proteome Res 2011; 11:331-47. [PMID: 22077597 DOI: 10.1021/pr200852q] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Illumination-induced greening in dark-grown plants is one of the most dramatic developmental processes known in plants. In our current study, we characterized the greening process of rice seedlings using comparative proteome analysis. We identified 886 different proteins in both whole cell lysates of illuminated and nonilluminated rice shoots and performed comparative proteome analysis based on the MS spectral intensities obtained for unique peptides from respective proteins. Furthermore, the changes in the levels of individual proteins were then compared with those of the corresponding mRNAs. The results revealed well-coordinated increases in the enzymes involved in the Calvin cycle at both the protein and mRNA levels during greening, and that the changes at the mRNA level precede those at the protein level. Although a much lower effect of illumination was found on the enzymes associated with glycolysis and the TCA cycle, coordinated increases during greening were evident for the enzymes involved in photorespiration and nitrogen assimilation as well as the components of the chloroplastic translational machinery. These results thus define the differential regulation of distinct biological systems during greening in rice and demonstrate the usefulness of comprehensive and comparative proteome analysis for the characterization of biological processes in plant cells.
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Affiliation(s)
- Kentaro Hamamoto
- Department of Applied Biological Chemistzry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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Tamoi M, Tabuchi T, Demuratani M, Otori K, Tanabe N, Maruta T, Shigeoka S. Point mutation of a plastidic invertase inhibits development of the photosynthetic apparatus and enhances nitrate assimilation in sugar-treated Arabidopsis seedlings. J Biol Chem 2010; 285:15399-15407. [PMID: 20304912 DOI: 10.1074/jbc.m109.055111] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Because the photosynthetic apparatus contains a massive amount of nitrogen in plants, the regulation of its development by sugar signals is important to the maintenance of the carbon-nitrogen balance. In this study we isolated an Arabidopsis mutant (sicy-192) whose cotyledon greening was inhibited by treatments with sugars such as sucrose, glucose, and fructose. In the mutant, the gene encoding plastidic alkaline/neutral invertase (INV-E) was point-mutated at codon 294, with Tyr substituted for Cys (C294Y). Interestingly, the greening of cotyledons in the knock-out INV-E lines was not inhibited by treatment with the sugars. In addition, the knock-out INV-E lines expressing an INV-E:C294Y or INV-E:C294A gene had the same phenotype as sicy-192 mutants, whereas the lines expressing a wild-type INV-E gene had the same phenotype as wild-type plants. A recombinant INV-E:C294Y protein had the same enzymatic activity as a recombinant INV-E protein, suggesting that the Cys-294 residue of INV-E is important for its functions in the chloroplasts. On treatment with sucrose, the expression of photosynthesis-related genes was weaker in seedlings of mutant plants than wild-type seedlings, whereas the activity of nitrate reductase was stronger in the mutant plants than wild-type plants. These findings suggest that Cys-294 of INV-E is associated with the development of the photosynthetic apparatus and the assimilation of nitrogen in Arabidopsis seedlings to control the ratio of sucrose content to hexose content.
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Affiliation(s)
- Masahiro Tamoi
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Kawaguchi 332-0012, Japan
| | - Tomoki Tabuchi
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Kawaguchi 332-0012, Japan
| | - Masayo Demuratani
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan
| | - Kumi Otori
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Kawaguchi 332-0012, Japan
| | - Noriaki Tanabe
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Kawaguchi 332-0012, Japan
| | - Takanori Maruta
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Kawaguchi 332-0012, Japan
| | - Shigeru Shigeoka
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan; Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Kawaguchi 332-0012, Japan.
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Mano J, Miyatake F, Hiraoka E, Tamoi M. Evaluation of the toxicity of stress-related aldehydes to photosynthesis in chloroplasts. PLANTA 2009; 230:639-48. [PMID: 19578873 DOI: 10.1007/s00425-009-0964-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Accepted: 05/18/2009] [Indexed: 05/03/2023]
Abstract
Aldehydes produced under various environmental stresses can cause cellular injury in plants, but their toxicology in photosynthesis has been scarcely investigated. We here evaluated their effects on photosynthetic reactions in chloroplasts isolated from Spinacia oleracea L. leaves. Aldehydes that are known to stem from lipid peroxides inactivated the CO(2) photoreduction to various extents, while their corresponding alcohols and carboxylic acids did not affect photosynthesis. alpha,beta-Unsaturated aldehydes (2-alkenals) showed greater inactivation than the saturated aliphatic aldehydes. The oxygenated short aldehydes malondialdehyde, methylglyoxal, glycolaldehyde and glyceraldehyde showed only weak toxicity to photosynthesis. Among tested 2-alkenals, 2-propenal (acrolein) was the most toxic, and then followed 4-hydroxy-(E)-2-nonenal and (E)-2-hexenal. While the CO(2)-photoreduction was inactivated, envelope intactness and photosynthetic electron transport activity (H(2)O --> ferredoxin) were only slightly affected. In the acrolein-treated chloroplasts, the Calvin cycle enzymes phosphoribulokinase, glyceraldehyde-3-phosphate dehydrogenase, fructose-1,6-bisphophatase, sedoheptulose-1,7-bisphosphatase, aldolase, and Rubisco were irreversibly inactivated. Acrolein treatment caused a rapid drop of the glutathione pool, prior to the inactivation of photosynthesis. GSH exogenously added to chloroplasts suppressed the acrolein-induced inactivation of photosynthesis, but ascorbic acid did not show such a protective effect. Thus, lipid peroxide-derived 2-alkenals can inhibit photosynthesis by depleting GSH in chloroplasts and then inactivating multiple enzymes in the Calvin cycle.
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Affiliation(s)
- Jun'ichi Mano
- Science Research Center, Yamaguchi University, Yamaguchi 753-8515, Japan.
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Feng L, Han Y, Liu G, An B, Yang J, Yang G, Li Y, Zhu Y. Overexpression of sedoheptulose-1,7-bisphosphatase enhances photosynthesis and growth under salt stress in transgenic rice plants. FUNCTIONAL PLANT BIOLOGY : FPB 2007; 34:822-834. [PMID: 32689410 DOI: 10.1071/fp07074] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2007] [Accepted: 06/19/2007] [Indexed: 05/17/2023]
Abstract
Activity of the Calvin cycle enzyme sedoheptulose-1,7-bisphosphatase (SBPase; EC3.1.3.37) was increased in the transgenic rice cultivar zhonghua11 (Oryza sativa L. ssp. japonica) by overexpressing OsSbp cDNA from the rice cultivar 9311 (Oryza sativa ssp. indica). This genetic engineering enabled the transgenic plants to accumulate SBPase in chloroplasts and resulted in enhanced tolerance of transgenic rice plants to salt stress at the young seedlings stage. Moreover, CO2 assimilation in transgenic rice plants was significantly more tolerant to salt stress than in wild-type plants. The analysis of chlorophyll fluorescence and the activity of SBPase indicated that the enhancement of photosynthesis in salt stress was not related to the function of PSII but to the activity of SBPase. Western-blot analysis showed that salt stress led to the association of SBPase with the thylakoid membranes from the stroma fractions. However, this association was much more prominent in wild-type plants than in transgenic plants. Results suggested that under salt stress, SBPase maintained the activation of ribulose-1,5-bisphosphate carboxylase-oxygenase by providing more regeneration of the acceptor molecule ribulose-1,5-bisphosphate in the soluble stroma and by preventing the sequestration of Rubisco activase to the thylakoid membrane from the soluble stroma, and, thus, enhanced the tolerance of photosynthesis to salt stress. Results suggested that overexpression of SBPase was an effective method for enhanncing salt tolerance in rice.
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Affiliation(s)
- Lingling Feng
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yujun Han
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
| | - Gai Liu
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
| | - Baoguang An
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
| | - Jing Yang
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
| | - Guohua Yang
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yangsheng Li
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yingguo Zhu
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, PR China
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Feng L, Wang K, Li Y, Tan Y, Kong J, Li H, Li Y, Zhu Y. Overexpression of SBPase enhances photosynthesis against high temperature stress in transgenic rice plants. PLANT CELL REPORTS 2007; 26:1635-46. [PMID: 17458549 DOI: 10.1007/s00299-006-0299-y] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2006] [Revised: 12/21/2006] [Accepted: 12/31/2006] [Indexed: 05/05/2023]
Abstract
Activity of the Calvin cycle enzyme sedoheptulose-1,7-bisphosphatase (SBPase) was increased by overexpression of a rice plants 9,311 (Oryza sativa L.) cDNA in rice plants zhonghua11 (Oryza sativa L.). The genetic engineering enabled the plants to accumulate SBPase in chloroplasts and resulted in enhanced tolerance to high temperature stress during growth of young seedlings. Moreover, CO(2) assimilation of transgenic plants was significantly more tolerant to high temperature than that of wild-type plants. The analyses of chlorophyll fluorescence and the content and activation of SBPase indicated that the enhancement of photosynthesis to high temperature was not related to the function of photosystem II but to the content and activation of SBPase. Western blotting analyses showed that high temperature stress led to the association of SBPase with the thylakoid membranes from the stroma fractions. However, such an association was much more pronounced in wild-type plants than that in transgenic plants. The results in this study suggested that under high temperature stress, SBPase maintained the activation of ribulose-1,5-bisphosphate carboxylase-oxygenase (Rubisco) by preventing the sequestration of Rubisco activase to the thylakoid membranes from the soluble stroma fraction and thus enhanced the tolerance of CO(2) assimilation to high temperature stress. The results suggested that overexpression of SBPase might be an effective method for enhancing high temperature tolerance of plants.
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Affiliation(s)
- Lingling Feng
- Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, People's Republic of China
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Tamoi M, Nagaoka M, Miyagawa Y, Shigeoka S. Contribution of fructose-1,6-bisphosphatase and sedoheptulose-1,7-bisphosphatase to the photosynthetic rate and carbon flow in the Calvin cycle in transgenic plants. PLANT & CELL PHYSIOLOGY 2006; 47:380-90. [PMID: 16415064 DOI: 10.1093/pcp/pcj004] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
To clarify the contributions of fructose-1,6-bisphosphatase (FBPase) and sedoheptulose-1,7-bisphosphatase (SBPase) separately to the carbon flux in the Calvin cycle, we generated transgenic tobacco plants expressing cyanobacterial FBPase-II in chloroplasts (TpF) or Chlamydomonas SBPase in chloroplasts (TpS). In TpF-11 plants with 2.3-fold higher FBPase activity and in TpS-11 and TpS-10 plants with 1.6- and 4.3-fold higher SBPase activity in chloroplasts compared with the wild-type plants, the amount of final dry matter was approximately 1.3-, 1.5- and 1.5-fold higher, respectively, than that of the wild-type plants. At 1,500 micromol m(-2) s(-1), the photosynthetic activities of TpF-11, TpS-11 and TpS-10 were 1.15-, 1.27- and 1.23-fold higher, respectively, than that of the wild-type plants. The in vivo activation state of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and the level of ribulose-1,5-bisphosphate (RuBP) in TpF-11, TpS-10 and TpS-11 were significantly higher than those in the wild-type plants. However, the transgenic plant TpF-9 which had a 1.7-fold higher level of FBPase activity showed the same phenotype as the wild-type plant, except for the increase of starch content in the source leaves. TpS-11 and TpS-10 plants with 1.6- and 4.3-fold higher SBPase activity, respectively, showed an increase in the photosynthetic CO(2) fixation, growth rate, RuBP contents and Rubisco activation state, while TpS-2 plants with 1.3-fold higher SBPase showed the same phenotype as the wild-type plants. These data indicated that the enhancement of either a >1.7-fold increase of FBPase or a 1.3-fold increase of SBPase in the chloroplasts had a marked positive effect on photosynthesis, that SBPase is the most important factor for the RuBP regeneration in the Calvin cycle and that FBPase contributes to the partitioning of the fixed carbon for RuBP regeneration or starch synthesis.
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Affiliation(s)
- Masahiro Tamoi
- Department of Advanced Bioscience, Faculty of Agriculture, Kinki University, Nara, Japan
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