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Gulin AA, Nadtochenko VA, Pogorelova VN, Melnikov MY, Pogorelov AG. Sample Preparation of Biological Tissues and Cells for the Time-of-Flight Secondary Ion Mass Spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s106193482006009x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Osorio JHM, Benettoni P, Schmidt M, Stryhanyuk H, Schmitt-Jansen M, Pinto G, Pollio A, Frunzo L, Lens PNL, Richnow HH, Esposito G, Musat N. Investigation of architecture development and phosphate distribution in Chlorella biofilm by complementary microscopy techniques. FEMS Microbiol Ecol 2020; 95:5372415. [PMID: 30848779 DOI: 10.1093/femsec/fiz029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 03/07/2019] [Indexed: 12/12/2022] Open
Abstract
Microalgae biofilms may play an important role in the mitigation and prevention of eutrophication caused by domestic, agricultural and industrial wastewater effluents. Despite their potential, the biofilm development and role in nutrient removal are not well understood. Its clarification requires comprehensive studies of the complex three-dimensional architecture of the biofilm. In this study, we established a multimodal imaging approach to provide key information regarding architecture development and nutrient distribution in the biofilm of two green algae organisms: Chlorella pyrenoidosa and Chlorella vulgaris. Helium ion microscopy (HIM), scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM-EDX) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) were employed for i) elucidation of spatial arrangement, ii) elemental mapping and iii) 3D chemical imaging of the biofilm. The fine structure of the algal biofilm was resolved by HIM, the evidence of the accumulation of phosphate in hot spots was provided by SEM-EDX and the localization of phosphate oxides granules throughout the whole sample was clarified by ToF-SIMS. The reported results shed light on the phosphorus distribution during Chlorella's biofilm formation and highlight the potential of such correlative approach to solve fundamental question in algal biotechnology research.
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Affiliation(s)
- Jairo H Moreno Osorio
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, via Di Biasio, 43 - 03043 Cassino, Italy.,Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig
| | - Pietro Benettoni
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig
| | - Matthias Schmidt
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig
| | - Hryhoriy Stryhanyuk
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig
| | - Mechthild Schmitt-Jansen
- Department of Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig
| | - Gabriele Pinto
- Department of Biology, University of Naples "Federico II", via Cintia - Complex Monte S. Angelo, 26. 80126 Naples, Italy
| | - Antonino Pollio
- Department of Biology, University of Naples "Federico II", via Cintia - Complex Monte S. Angelo, 26. 80126 Naples, Italy
| | - Luigi Frunzo
- Department of Mathematics and Applications Renato Caccioppoli, University of Naples "Federico II" via Cintia, Monte S. Angelo, 80126 Naples, Italy
| | - Piet N L Lens
- UNESCO-IHE institute for water education, Westvest 7, 2611AX Delft, The Netherlands.,National University of Ireland Galway, University Road, Galway H91 TK33, Ireland
| | - Hans H Richnow
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig
| | - Giovanni Esposito
- Department of Civil, Architectural and Environmental Engineering, University of Naples "Federico II" via Claudio 21, 80125 Naples, Italy
| | - Niculina Musat
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig
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Wang CC, Moorhouse S, Stain C, Seymour M, Green E, Penfield S, Moger J. In situ chemically specific mapping of agrochemical seed coatings using stimulated Raman scattering microscopy. JOURNAL OF BIOPHOTONICS 2018; 11:e201800108. [PMID: 29770613 DOI: 10.1002/jbio.201800108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/14/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Providing sufficient, healthy food for the increasing global population is putting a great deal of pressure on the agrochemical industry to maximize crop yields without sustaining environmental damage. The growth and yield of every plant with sexual reproduction, depends on germination and emergence of sown seeds, which is affected greatly by seed disease. This can be most effectively controlled by treating seeds with pesticides before they are sown. An effective seed coating treatment requires a high surface coverage and adhesion of active ingredients onto the seed surface and the addition of adhesive agents in coating formulations plays a key role in achieving this. Although adhesive agents are known to enhance seed germination, little is understood about how they affect surface distribution of actives and how formulations can be manipulated to rationally engineer seed coating preparations with optimized coverage and efficacy. We show, for the first time, that stimulated Raman scattering microscopy can be used to map the seed surface with microscopic spatial resolution and with chemical specificity to identify formulation components distributed on the seed surface. This represents a major advance in our capability to rationally engineer seed coating formulations with enhanced efficacy.
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Affiliation(s)
| | - Siân Moorhouse
- Syngenta, Jealott's Hill International Research Centre, Bracknell, UK
| | - Chris Stain
- Syngenta, Jealott's Hill International Research Centre, Bracknell, UK
| | - Mark Seymour
- Syngenta, Jealott's Hill International Research Centre, Bracknell, UK
| | - Ellen Green
- School of Physics, University of Exeter, Exeter, UK
| | - Steven Penfield
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Julian Moger
- School of Physics, University of Exeter, Exeter, UK
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