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Maria Ranieri A, Vezzelli M, Leslie KG, Huang S, Stagni S, Jacquemin D, Jiang H, Hubbard A, Rigamonti L, Watkin ELJ, Ogden MI, New EJ, Massi M. Structure illumination microscopy imaging of lipid vesicles in live bacteria with naphthalimide-appended organometallic complexes. Analyst 2021; 146:3818-3822. [PMID: 34036982 DOI: 10.1039/d1an00363a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There is a lack of molecular probes for imaging bacteria, in comparison to the array of such tools available for the imaging of mammalian cells. Here, organometallic molecular probes have been developed and assessed for bacterial imaging, designed to have the potential to support multiple imaging modalities. The chemical structure of the probes is designed around a metal-naphthalimide structure. The 4-amino-1,8-naphthalimide moiety, covalently appended through a pyridine ancillary ligand, acts as a luminescent probe for super-resolution microscopy. On the other hand, the metal centre, rhenium(i) or platinum(ii) in the current study, enables techniques such as nanoSIMS. While the rhenium(i) complex was not sufficiently stable to be used as a probe, the platinum(ii) analogue showed good chemical and biological stability. Structured illumination microscopy (SIM) imaging on live Bacillus cereus confirmed the suitability of the probe for super-resolution microscopy. NanoSIMS analysis was used to monitor the uptake of the platinum(ii) complex within the bacteria and demonstrate the potential of this chemical architecture to enable multimodal imaging. The successful combination of these two moieties introduces a platform that could lead to a versatile range of multi-functional probes for bacteria.
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Affiliation(s)
- Anna Maria Ranieri
- School of Molecular and Life Sciences, Curtin University, Bentley 6102, WA, Australia.
| | - Matteo Vezzelli
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, via G. Campi 103, 41125 Modena, Italy
| | - Kathryn G Leslie
- School of Chemistry, The University of Sydney, 2006 NSW, Australia.
| | - Song Huang
- Centre for Microscopy, Characterisation and Analysis, Univsersity of Western Australia, 6009 Perth, WA, Australia
| | - Stefano Stagni
- Dipartimento di Chimica Industriale "Toso Montanari", Università degli Studi di Bologna, viale del Risorgimento 4, 40136 Bologna, Italy
| | - Denis Jacquemin
- Laboratoire CEISAM, UMR CNRS 6230, Universit8 de Nantes, 2 Rue de la HoussiniHre, BP 92208, 44322 Nantes Cedex 3, France
| | - Haibo Jiang
- Centre for Microscopy, Characterisation and Analysis, Univsersity of Western Australia, 6009 Perth, WA, Australia
| | - Alysia Hubbard
- Centre for Microscopy, Characterisation and Analysis, Univsersity of Western Australia, 6009 Perth, WA, Australia
| | - Luca Rigamonti
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, via G. Campi 103, 41125 Modena, Italy
| | - Elizabeth L J Watkin
- Curtin Medical School, Curtin University, Kent Street, Bentley 6102 WA, Australia
| | - Mark I Ogden
- School of Molecular and Life Sciences, Curtin University, Bentley 6102, WA, Australia.
| | - Elizabeth J New
- School of Chemistry, The University of Sydney, 2006 NSW, Australia.
| | - Massimiliano Massi
- School of Molecular and Life Sciences, Curtin University, Bentley 6102, WA, Australia.
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2
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Hartnell D, Hollings A, Ranieri AM, Lamichhane HB, Becker T, Sylvain NJ, Hou H, Pushie MJ, Watkin E, Bambery KR, Tobin MJ, Kelly ME, Massi M, Vongsvivut J, Hackett MJ. Mapping sub-cellular protein aggregates and lipid inclusions using synchrotron ATR-FTIR microspectroscopy. Analyst 2021; 146:3516-3525. [PMID: 33881057 DOI: 10.1039/d1an00136a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visualising direct biochemical markers of cell physiology and disease pathology at the sub-cellular level is an ongoing challenge in the biological sciences. A suite of microscopies exists to either visualise sub-cellular architecture or to indirectly view biochemical markers (e.g. histochemistry), but further technique developments and innovations are required to increase the range of biochemical parameters that can be imaged directly, in situ, within cells and tissue. Here, we report our continued advancements in the application of synchrotron radiation attenuated total reflectance Fourier transform infrared (SR-ATR-FTIR) microspectroscopy to study sub-cellular biochemistry. Our recent applications demonstrate the much needed capability to map or image directly sub-cellular protein aggregates within degenerating neurons as well as lipid inclusions within bacterial cells. We also characterise the effect of spectral acquisition parameters on speed of data collection and the associated trade-offs between a realistic experimental time frame and spectral/image quality. Specifically, the study highlights that the choice of 8 cm-1 spectral resolutions provide a suitable trade-off between spectral quality and collection time, enabling identification of important spectroscopic markers, while increasing image acquisition by ∼30% (relative to 4 cm-1 spectral resolution). Further, this study explores coupling a focal plane array detector with SR-ATR-FTIR, revealing a modest time improvement in image acquisition time (factor of 2.8). Such information continues to lay the foundation for these spectroscopic methods to be readily available for, and adopted by, the biological science community to facilitate new interdisciplinary endeavours to unravel complex biochemical questions and expand emerging areas of study.
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Affiliation(s)
- David Hartnell
- School of Molecular and Life Sciences, Curtin University, Bentley, 6845, Western Australia. and Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia
| | - Ashley Hollings
- School of Molecular and Life Sciences, Curtin University, Bentley, 6845, Western Australia. and Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia
| | - Anna Maria Ranieri
- School of Molecular and Life Sciences, Curtin University, Bentley, 6845, Western Australia.
| | - Hum Bahadur Lamichhane
- School of Molecular and Life Sciences, Curtin University, Bentley, 6845, Western Australia.
| | - Thomas Becker
- School of Molecular and Life Sciences, Curtin University, Bentley, 6845, Western Australia.
| | - Nicole J Sylvain
- Division of Neurosurgery, Department of Surgery, College of Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5E5
| | - Huishu Hou
- Division of Neurosurgery, Department of Surgery, College of Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5E5
| | - M Jake Pushie
- Division of Neurosurgery, Department of Surgery, College of Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5E5
| | - Elizabeth Watkin
- Curtin Medical School, Curtin University, Bentley, Western Australia 6845
| | - Keith R Bambery
- ANSTO - Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria, 3168, Australia
| | - Mark J Tobin
- ANSTO - Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria, 3168, Australia
| | - Michael E Kelly
- Division of Neurosurgery, Department of Surgery, College of Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5E5
| | - Massimiliano Massi
- School of Molecular and Life Sciences, Curtin University, Bentley, 6845, Western Australia.
| | - Jitraporn Vongsvivut
- ANSTO - Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria, 3168, Australia
| | - Mark J Hackett
- School of Molecular and Life Sciences, Curtin University, Bentley, 6845, Western Australia. and Curtin Health Innovation Research Institute, Curtin University, Bentley, 6102, Western Australia
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Ranieri AM, Caporale C, Fiorini V, Hubbard A, Rigby P, Stagni S, Watkin E, Ogden MI, Hackett MJ, Massi M. Complementary Approaches to Imaging Subcellular Lipid Architectures in Live Bacteria Using Phosphorescent Iridium Complexes and Raman Spectroscopy. Chemistry 2019; 25:10566-10570. [DOI: 10.1002/chem.201902023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/11/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Anna Maria Ranieri
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life SciencesCurtin University Bentley 6102 WA Australia
| | - Chiara Caporale
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life SciencesCurtin University Bentley 6102 WA Australia
| | - Valentina Fiorini
- Department of Industrial Chemistry “Toso Montanari”University of Bologna, viale del Risorgimento4 40136 Bologna Italy
| | - Alysia Hubbard
- Centre for Microscopy, Characterisation and AnalysisThe University of Western Australia Perth 6009 WA Australia
| | - Paul Rigby
- Centre for Microscopy, Characterisation and AnalysisThe University of Western Australia Perth 6009 WA Australia
| | - Stefano Stagni
- Department of Industrial Chemistry “Toso Montanari”University of Bologna, viale del Risorgimento4 40136 Bologna Italy
| | - Elizabeth Watkin
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research InstituteCurtin University Kent Street Bentley 6102 Australia
| | - Mark I. Ogden
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life SciencesCurtin University Bentley 6102 WA Australia
| | - Mark J. Hackett
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life SciencesCurtin University Bentley 6102 WA Australia
| | - Massimiliano Massi
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life SciencesCurtin University Bentley 6102 WA Australia
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Ranieri AM, Burt LK, Stagni S, Zacchini S, Skelton BW, Ogden MI, Bissember AC, Massi M. Anionic Cyclometalated Platinum(II) Tetrazolato Complexes as Viable Photoredox Catalysts. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00913] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Anna Maria Ranieri
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life Sciences, Curtin University, Bentley 6102 WA, Australia
| | - Liam K. Burt
- School of Natural Sciences − Chemistry, University of Tasmania, Hobart, Tas. 7001, Australia
| | - Stefano Stagni
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, viale del Risorgimento 4, 40136 Bologna, Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, viale del Risorgimento 4, 40136 Bologna, Italy
| | - Brian W. Skelton
- School of Molecular Sciences, The University of Western Australia, Perth 6009 WA, Australia
| | - Mark I. Ogden
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life Sciences, Curtin University, Bentley 6102 WA, Australia
| | - Alex C. Bissember
- School of Natural Sciences − Chemistry, University of Tasmania, Hobart, Tas. 7001, Australia
| | - Massimiliano Massi
- Curtin Institute for Functional Molecules and Interfaces, and School of Molecular and Life Sciences, Curtin University, Bentley 6102 WA, Australia
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Fiorini V, Zanoni I, Zacchini S, Costa AL, Hochkoeppler A, Zanotti V, Ranieri AM, Massi M, Stefan A, Stagni S. Methylation of Ir(iii)-tetrazolato complexes: an effective route to modulate the emission outputs and to switch to antimicrobial properties. Dalton Trans 2017; 46:12328-12338. [PMID: 28891573 DOI: 10.1039/c7dt02352a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Two neutral cyclometalated Ir(iii)-tetrazolato complexes that differ by variations of the substituents on either the phenylpyridine or the tetrazolate ligand have been converted into the corresponding methylated and cationic analogues. NMR (1H and 13C) characterization of the Ir(iii) complexes provided the results in agreement with the chemo- and regioselective character of methylation at the N-3 position of the Ir(iii)-coordinated tetrazolato ring. This evidence was further corroborated by the analysis of the molecular structures of the cationic complexes obtained by X-ray diffraction. In view of the photophysical properties, the addition of a methyl moiety to neutral Ir(iii) tetrazolates, which behave as sky-blue or orange phosphors, caused a systematic red shift of their phosphorescence output. The transformation of neutral Ir(iii) tetrazolates into cationic Ir(iii)-tetrazole complexes was screened for any eventual antimicrobial activity in vitro against Gram negative (E. coli) and Gram positive (D. radiodurans) microorganisms. While both kinds of complexes were not active against E. coli, the conversion of the neutral Ir(iii) tetrazolates into the corresponding methylated and cationic Ir(iii)tetrazole derivatives determined the turn-on of a good to excellent antimicrobial activity toward Gram positive Deinococcus radiodurans, a non-pathogenic bacterium that is listed as one of the toughest microorganisms in light of its outstanding resistance to radiation and oxidative stress.
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Affiliation(s)
- Valentina Fiorini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
| | - Ilaria Zanoni
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy. and CNR-ISTEC-National Research Council of Italy, Institute of Science and Technology for Ceramics, Via Granarolo 64 I-48018, Faenza, RA, Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
| | - Anna Luisa Costa
- CNR-ISTEC-National Research Council of Italy, Institute of Science and Technology for Ceramics, Via Granarolo 64 I-48018, Faenza, RA, Italy
| | - Alejandro Hochkoeppler
- Department of Pharmacy and Biotechnology, University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy. and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Valerio Zanotti
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
| | - Anna Maria Ranieri
- Nanochemistry Research Institute, Department of Chemistry, Curtin University, GPO Box U 1987, Perth, Australia 6845.
| | - Massimiliano Massi
- Nanochemistry Research Institute, Department of Chemistry, Curtin University, GPO Box U 1987, Perth, Australia 6845.
| | - Alessandra Stefan
- Department of Pharmacy and Biotechnology, University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy. and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Stefano Stagni
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
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Sgherri C, Scattino C, Pinzino C, Tonutti P, Ranieri AM. Ultraviolet-B radiation applied to detached peach fruit: A study of free radical generation by EPR spin trapping. Plant Physiol Biochem 2015; 96:124-31. [PMID: 26263515 DOI: 10.1016/j.plaphy.2015.07.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/21/2015] [Accepted: 07/28/2015] [Indexed: 05/23/2023]
Abstract
In peaches, phenolic compounds are the major sources of antioxidants, and cyanidin-3-O-glucoside is the main anthocyanin present, above all in the skin. Anthocyanin content has been shown to increase after UV-B irradiation, which may be very harmful for all biological organisms due to the induction of the generation of reactive oxygen species (ROS). Peach fruits (cv. 'Suncrest') were exposed during post-harvest to supplemental ultraviolet-B radiation. A spin-trapping technique was used to monitor the generation of free radicals under UV-B, and 5-(diethoxy-phosphoryl)-5-methyl-1-pyrroline-N-oxide (DEPMPO) was used as the spin trap. The flesh of peaches was essentially unaffected by the treatment, whereas the skin was responsive at the end of the treatment, accumulating ascorbate, flavonoids, cyanidin-3-O-glucoside, and showing a higher antioxidant activity. The levels of stable free radicals were also lower at the end of treatment. Carbon-centred radicals contributed the most to the total amounts of free radicals, whereas hydroxyl radicals and oxygen-centred free radicals contributed minimally. The carbon-centred free radical identified was the same as the one obtained after irradiation of authentic cyanidin-3-O-glucoside. During UV-B treatment cyanidin-3-O-glucoside increased and was capable of radicalization protecting the other organic molecules of the cell from oxidation. ROS, among which hydroxyl radicals, were thus maintained to minimal levels. This ability of cyanidin-3-O-glucoside displayed the mechanism underlined the tolerance to UV-B irradiation indicating that shelf life can be prolonged by the presence of anthocyanins. Thus, UV-B technique results a good approach to induce antioxidant production in peach fruits increasing their nutraceutical properties.
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Affiliation(s)
- C Sgherri
- Department of Agriculture, Food and Environment, University of Pisa, Via Del Borghetto 80, I-56124 Pisa, Italy.
| | - C Scattino
- Department of Agriculture, Food and Environment, University of Pisa, Via Del Borghetto 80, I-56124 Pisa, Italy.
| | - C Pinzino
- Institute of Chemistry of Organometallic Compounds (ICCOM), Italian National Research Council (CNR), Area Della Ricerca Del CNR di Pisa, Via G. Moruzzi 1, I-56124 Pisa, Italy.
| | - P Tonutti
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà 33, I-56127 Pisa, Italy.
| | - A M Ranieri
- Department of Agriculture, Food and Environment, University of Pisa, Via Del Borghetto 80, I-56124 Pisa, Italy; Interdepartmental Research Center "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.
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Tavarini S, Sgherri C, Ranieri AM, Angelini LG. Effect of Nitrogen Fertilization and Harvest Time on Steviol Glycosides, Flavonoid Composition, and Antioxidant Properties in Stevia rebaudiana Bertoni. J Agric Food Chem 2015; 63:7041-7050. [PMID: 26194177 DOI: 10.1021/acs.jafc.5b02147] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This work investigated the effect of nitrogen fertilization and harvest time on the flavonoid composition and antioxidant properties of Stevia rebaudiana leaves. At the same time, changes in stevioside (Stev) and rebaudioside A (RebA) contents were recorded. A pot trial under open air conditions was set up, testing five N rates and three harvest times. The results showed that, by using an adequate N rate and choosing an appropriate harvest time, it was possible to significantly increase and optimize the bioactive compound levels. In particular, higher RebA, RebA/Stev ratio, total phenols and flavonoids, luteolin-7-O-glucoside, and apigenin-7-O-glucoside levels and antioxidant capacity were recorded by supplying 150 kg N ha(-1). Reduced or increased N availability in comparison with N150 had no consistent effect on Stevia phytochemicals content. Significant correlations were also found between stevioside and some of the flavonoids, indicating a possible role of flavonoids in the stevioside metabolic pathway, which deserves more investigations.
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Affiliation(s)
- Silvia Tavarini
- †Department of Agriculture, Food and Environment and ‡Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute" - NUTRAFOOD, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Cristina Sgherri
- †Department of Agriculture, Food and Environment and ‡Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute" - NUTRAFOOD, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Anna Maria Ranieri
- †Department of Agriculture, Food and Environment and ‡Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute" - NUTRAFOOD, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Luciana G Angelini
- †Department of Agriculture, Food and Environment and ‡Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute" - NUTRAFOOD, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
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Castagna A, Di Baccio D, Ranieri AM, Sebastiani L, Tognetti R. Effects of combined ozone and cadmium stresses on leaf traits in two poplar clones. Environ Sci Pollut Res Int 2015; 22:2064-2075. [PMID: 25167820 DOI: 10.1007/s11356-014-3481-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 08/18/2014] [Indexed: 06/03/2023]
Abstract
Information on plant responses to combined stresses such as ozone (O3) and cadmium (Cd) is scarce in tree species. On the other hand, high O3 concentrations in the atmosphere and heavy metal contaminations in water and soil simultaneously affect forest ecosystems. Toxic metals may exacerbate the consequences of air pollutants. In this research, two poplar clones, differently sensitive to O3 ("I-214" O3-tolerant and "Eridano" O3-sensitive), were grown for 5 weeks in pots supplied with 0 and 150 mg Cd kg(-1) soil and then exposed to a 15-day O3 fumigation (60 nl l(-1), 5 h a day) or supplied with charcoal-filtered air under the same conditions (referred to as control samples). The effects of the two stressors, alone or in combination, on Cd accumulation, photosynthetic capacity, ethylene emission and oxidative state were investigated in fully expanded leaves. Cadmium accumulation in leaves caused a reduction, but not complete failure, of photosynthesis in Eridano and I-214 poplar clones. The reduction in assimilation rate was more important following O3 fumigation. Stomatal aperture after O3 treatment, instead, increased in I-214 and decreased in Eridano. Overall, Cd treatment was effective in decreasing ethylene emission, whereas O3 fumigation increased it in both clones, although interacting with the metal treatment. Again, O3 fumigation induced a significant increase in ascorbate (ASA) + dehydroascorbate (DHA) content, which was strongly oxidised by O3, thus decreasing the redox state. On the other hand, Cd treatment had a positive effect on ASA content and redox state in I-214, but not in Eridano. Although Cd and O3 are known to share some common toxicity pathways, the combined effects induced distinct clone-specific responses, underlying the complexity of plant reactions to multiple stresses.
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Affiliation(s)
- Antonella Castagna
- Dipartimento di Scienze Agrarie, Alimentari e Agro-Ambientali, Università di Pisa, Via del Borghetto 80, 56124, Pisa, Italy,
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9
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Fiorini V, Ranieri AM, Muzzioli S, Magee KDM, Zacchini S, Akabar N, Stefan A, Ogden MI, Massi M, Stagni S. Targeting divalent metal cations with Re(i) tetrazolato complexes. Dalton Trans 2015; 44:20597-608. [DOI: 10.1039/c5dt03690a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design, preparation and characterization of four new Re(i) tetrazolato complexes together with the study of their luminescent sensing abilities toward Zn(ii), Cd(ii) and Cu(ii) are described herein.
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Affiliation(s)
- Valentina Fiorini
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- I-40136 Bologna
- Italy
| | - Anna Maria Ranieri
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- I-40136 Bologna
- Italy
| | - Sara Muzzioli
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- I-40136 Bologna
- Italy
| | - Karen D. M. Magee
- Nanochemistry Research Institute
- Department of Chemistry
- Curtin University
- Perth
- Australia 6845
| | - Stefano Zacchini
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- I-40136 Bologna
- Italy
| | - Nurshadrina Akabar
- Nanochemistry Research Institute
- Department of Chemistry
- Curtin University
- Perth
- Australia 6845
| | - Alessandra Stefan
- Department of Pharmacy and Biotechnology
- University of Bologna
- I-40136 Bologna
- Italy
| | - Mark I. Ogden
- Nanochemistry Research Institute
- Department of Chemistry
- Curtin University
- Perth
- Australia 6845
| | - Massimiliano Massi
- Nanochemistry Research Institute
- Department of Chemistry
- Curtin University
- Perth
- Australia 6845
| | - Stefano Stagni
- Department of Industrial Chemistry “Toso Montanari”
- University of Bologna
- I-40136 Bologna
- Italy
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Becatti E, Chkaiban L, Tonutti P, Forcato C, Bonghi C, Ranieri AM. Short-Term Postharvest Carbon Dioxide Treatments Induce Selective Molecular and Metabolic Changes in Grape Berries. J Agric Food Chem 2010; 58:8012-20. [PMID: 20557098 DOI: 10.1021/jf100936x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Affiliation(s)
- Elisa Becatti
- Dipartimento di Biologia delle Piante Agrarie, University of Pisa, via del Borghetto 80, I-56124 Pisa, Italy
| | - Lamia Chkaiban
- Scuola Superiore Sant’Anna, Piazza Martiri della Libertà 33, I-56127 Pisa, Italy
| | - Pietro Tonutti
- Scuola Superiore Sant’Anna, Piazza Martiri della Libertà 33, I-56127 Pisa, Italy
| | - Claudio Forcato
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali, University of Padova, Viale dell'Università 16, I- 35020 Legnaro (Padova), Italy
| | - Claudio Bonghi
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali, University of Padova, Viale dell'Università 16, I- 35020 Legnaro (Padova), Italy
| | - Anna Maria Ranieri
- Dipartimento di Biologia delle Piante Agrarie, University of Pisa, via del Borghetto 80, I-56124 Pisa, Italy
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11
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Poli P, Ranieri AM, Cioni N, Bellomini MG. [Intervention of the Group of Civil Protection of the Misericordia di Pisa in the disaster of Moby Prince]. Minerva Anestesiol 1991; 57:1725-6. [PMID: 1795829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- P Poli
- Venerabile Arciconfraternita di Misericordia e Crocione di Pisa
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12
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Poli P, Ranieri AM, Cioni N, Bellomini MG. [Organization of the Group of Civil Protection of the Misericordia di Pisa in the emergencies of "Albanian refugees"]. Minerva Anestesiol 1991; 57:1687-8. [PMID: 1795818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- P Poli
- Venerabile Arciconfraternita di Misericordia e Crocione di Pisa
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Mapelli S, Ranieri AM. Total protein release from barley aleurone layers as a bioassay for gibberellins. Planta 1978; 142:37-40. [PMID: 24407995 DOI: 10.1007/bf00385117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/1978] [Accepted: 05/16/1978] [Indexed: 06/03/2023]
Abstract
The effect of gibberellic acid on the secretion of proteins from barley (Hordeum vulgare L.) aleurone layers has been investigated for its suitability as a gibberellin bioassay. Concentrations from 10(-4) μg/ml to 100 μg/ml of GA3 resulted in the release of proportionally increasing amounts of total protein. The release of proteins is not affected by indoleacetic acid and kinetin. This method has been applied and compared with the α-amylase assay for the estimation of gibberellin in extracts of tomato fruits and maize seedlings.
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Affiliation(s)
- S Mapelli
- Laboratorio Biosintesi Vegetali, C.N.R., Via Celoria 2, I-20133, Milano, Italy
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