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Schott C, Steingroewer J, Bley T, Cikalova U, Bendjus B. Biospeckle-characterization of hairy root cultures using laser speckle photometry. Eng Life Sci 2020; 20:287-295. [PMID: 32647507 PMCID: PMC7336145 DOI: 10.1002/elsc.201900161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/24/2020] [Accepted: 03/10/2020] [Indexed: 11/30/2022] Open
Abstract
Monitoring is indispensable for the optimization and simulation of biotechnological processes. Hairy roots (hr, plant tissue cultures) are producers of valuable relevant secondary metabolites. The genetically stable cultures are characterized by a rapid filamentous growth, making monitoring difficult with standard methods. This article focuses on the application of laser speckle photometry (LSP) as an innovative, non-invasive method to characterize Beta vulgaris (hr). LSP is based on the analysis of time-resolved interference patterns. Speckle interference patterns of a biological object, known as biospeckles, are characterized by a dynamic behavior that is induced by physical and biological phenomena related to the object. Speckle contrast, a means of measuring the dynamic behavior of biospeckles, was used to assess the biospeckle activity. The biospeckle activity corresponds to processes modifying the object and correlates with the biomass growth. Furthermore, the stage of the cultures' physiological development was assessed by speckle contrast due to the differentiation between active and low active behavior. This method is a new means of monitoring and evaluating the biomass growth of filamentous cultures in real time. As a potential tool to characterize hairy roots, LSP is non-invasive, time-saving, can be used online and stands out for its simple, low-cost setup.
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Affiliation(s)
- Carolin Schott
- Institute of Natural Materials TechnologyTU DresdenDresdenGermany
| | | | - Thomas Bley
- Institute of Natural Materials TechnologyTU DresdenDresdenGermany
| | - Ulana Cikalova
- Fraunhofer Institute for Ceramic Technologies and Systems IKTSDresdenGermany
| | - Beatrice Bendjus
- Fraunhofer Institute for Ceramic Technologies and Systems IKTSDresdenGermany
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Pandiselvam R, Mayookha V, Kothakota A, Ramesh S, Thirumdas R, Juvvi P. Biospeckle laser technique – A novel non-destructive approach for food quality and safety detection. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2019.12.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Leszczuk A, Pieczywek PM, Gryta A, Frąc M, Zdunek A. Immunocytochemical studies on the distribution of arabinogalactan proteins (AGPs) as a response to fungal infection in Malus x domestica fruit. Sci Rep 2019; 9:17428. [PMID: 31758032 PMCID: PMC6874670 DOI: 10.1038/s41598-019-54022-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/04/2019] [Indexed: 02/06/2023] Open
Abstract
Arabinogalactan proteins (AGPs) are cell components implicated in plant-microbe interactions. Despite the significance of AGPs in response to stress factors, their distribution during development of fungal disease in fruit is unknown. In our work, in situ analysis of AGP arrangement in fruit inoculated with Penicillium spinulosum during the consecutive days of infection development was carried out. For immunolocalization of AGPs, samples were incubated with JIM13, MAC207, LM2, and LM14 antibodies recognizing the AGP carbohydrate moieties. To analyse cell walls without proper action of AGP, an experiment with β-glucosyl Yariv reagent specifically binding AGPs was performed. The results showed an increase of signal fluorescence in the fruit after 16 days of fungal disease. Higher amounts of the examined epitopes were observed in the infection-altered sites of the fruit, in close vicinity to a surface filled by fungal spores. The results indicate that the Yariv reagent treatment induced progress of the fungal disease. Changes in the AGP presence during the fungal disease confirmed their involvement in defence against pathogen attack in fruit.
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Affiliation(s)
- Agata Leszczuk
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland.
| | - Piotr M Pieczywek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
| | - Agata Gryta
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
| | - Magdalena Frąc
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
| | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
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Pieczywek PM, Nowacka M, Dadan M, Wiktor A, Rybak K, Witrowa-Rajchert D, Zdunek A. Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle. SENSORS 2018; 18:s18041093. [PMID: 29617343 PMCID: PMC5948744 DOI: 10.3390/s18041093] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/29/2018] [Accepted: 03/30/2018] [Indexed: 12/30/2022]
Abstract
The dynamic laser speckle (biospeckle) method was tested as a potential tool for the assessment and monitoring of the maturity stage of tomatoes. Two tomato cultivars—Admiro and Starbuck—were tested. The process of climacteric maturation of tomatoes was monitored during a shelf life storage experiment. The biospeckle phenomena were captured using 640 nm and 830 nm laser light wavelength, and analysed using two activity descriptors based on biospeckle pattern decorrelation—C4 and ε. The well-established optical parameters of tomatoes skin were used as a reference method (luminosity, a*/b*, chroma). Both methods were tested with respect to their prediction capabilities of the maturity and destructive indicators of tomatoes—firmness, chlorophyll and carotenoids content. The statistical significance of the tested relationships were investigated by means of linear regression models. The climacteric maturation of tomato fruit was associated with an increase in biospckle activity. Compared to the 830 nm laser wavelength the biospeckle activity measured at 640 nm enabled more accurate predictions of firmness, chlorophyll and carotenoids content. At 640 nm laser wavelength both activity descriptors (C4 and ε) provided similar results, while at 830 nm the ε showed slightly better performance. The linear regression models showed that biospeckle activity descriptors had a higher correlation with chlorophyll and carotenoids content than the a*/b* ratio and luminosity. The results for chroma were comparable with the results for both biospeckle activity indicators. The biospeckle method showed very good results in terms of maturation monitoring and the prediction of the maturity indices of tomatoes, proving the possibility of practical implementation of this method for the determination of the maturity stage of tomatoes.
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Affiliation(s)
- Piotr Mariusz Pieczywek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland.
| | - Małgorzata Nowacka
- Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159c, 02-776 Warsaw, Poland.
| | - Magdalena Dadan
- Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159c, 02-776 Warsaw, Poland.
| | - Artur Wiktor
- Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159c, 02-776 Warsaw, Poland.
| | - Katarzyna Rybak
- Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159c, 02-776 Warsaw, Poland.
| | - Dorota Witrowa-Rajchert
- Department of Food Engineering and Process Management, Faculty of Food Sciences, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159c, 02-776 Warsaw, Poland.
| | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland.
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Early detection of fungal infection of stored apple fruit with optical sensors – Comparison of biospeckle, hyperspectral imaging and chlorophyll fluorescence. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.10.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Braga RA, González-Peña RJ, Viana DC, Rivera FP. Dynamic laser speckle analyzed considering inhomogeneities in the biological sample. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:45010. [PMID: 28444121 DOI: 10.1117/1.jbo.22.4.045010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 04/10/2017] [Indexed: 06/07/2023]
Abstract
Dynamic laser speckle phenomenon allows a contactless and nondestructive way to monitor biological changes that are quantified by second-order statistics applied in the images in time using a secondary matrix known as time history of the speckle pattern (THSP). To avoid being time consuming, the traditional way to build the THSP restricts the data to a line or column. Our hypothesis is that the spatial restriction of the information could compromise the results, particularly when undesirable and unexpected optical inhomogeneities occur, such as in cell culture media. It tested a spatial random approach to collect the points to form a THSP. Cells in a culture medium and in drying paint, representing homogeneous samples in different levels, were tested, and a comparison with the traditional method was carried out. An alternative random selection based on a Gaussian distribution around a desired position was also presented. The results showed that the traditional protocol presented higher variation than the outcomes using the random method. The higher the inhomogeneity of the activity map, the higher the efficiency of the proposed method using random points. The Gaussian distribution proved to be useful when there was a well-defined area to monitor.
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Affiliation(s)
- Roberto A Braga
- Universidade Federal de Lavras, Department Engenharia (DEG), Lavras, Brazil
| | - Rolando J González-Peña
- Universitat de València, Unidad de Biofísica y Física Médica, Facultad de Medicina y Odontología, Department Fisiología, Valencia, Spain
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Cyclic voltammetry of apple fruits: Memristors in vivo. Bioelectrochemistry 2016; 112:9-15. [DOI: 10.1016/j.bioelechem.2016.07.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 07/03/2016] [Accepted: 07/04/2016] [Indexed: 01/25/2023]
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Ribeiro KM, Barreto B, Pasqual M, White PJ, Braga RA, Dupuy LX. Continuous, high-resolution biospeckle imaging reveals a discrete zone of activity at the root apex that responds to contact with obstacles. ANNALS OF BOTANY 2014; 113:555-63. [PMID: 24284818 PMCID: PMC3906964 DOI: 10.1093/aob/mct271] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 10/01/2013] [Indexed: 05/03/2023]
Abstract
BACKGROUND AND AIMS Shining a laser onto biological material produces light speckles termed biospeckles. Patterns of biospeckle activity reflect changes in cell biochemistry, developmental processes and responses to the environment. The aim of this work was to develop methods to investigate the biospeckle activity in roots and to characterize the distribution of its intensity and response to thigmostimuli. METHODS Biospeckle activity in roots of Zea mays, and also Jatropha curcas and Citrus limonia, was imaged live and in situ using a portable laser and a digital microscope with a spatial resolution of 10 μm per pixel and the ability to capture images every 0.080 s. A procedure incorporating a Fujii algorithm, image restoration using median and Gaussian filters, image segmentation using maximum-entropy threshold methods and the extraction of features using a tracing algorithm followed by spline fitting were developed to obtain quantitative information from images of biospeckle activity. A wavelet transform algorithm was used for spectral decomposition of biospeckle activity and generalized additive models were used to attribute statistical significance to changes in patterns of biospeckle activity. KEY RESULTS The intensity of biospeckle activity was greatest close to the root apex. Higher frequencies (3-6 Hz) contributed most to the total intensity of biospeckle activity. When a root encountered an obstacle, the intensity of biospeckle activity decreased abruptly throughout the root system. The response became attenuated with repeated thigmostimuli. CONCLUSIONS The data suggest that at least one component of root biospeckle activity resulted from a biological process, which is located in the zone of cell division and responds to thigmostimuli. However, neither individual cell division events nor root elongation is likely to be responsible for the patterns of biospeckle activity.
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Affiliation(s)
- K. M. Ribeiro
- Universidade Federal de Lavras, Caixa Postal 3037, Lavras, MG 37200-000, Brazil
| | - B. Barreto
- Universidade Federal de Lavras, Caixa Postal 3037, Lavras, MG 37200-000, Brazil
| | - M. Pasqual
- Universidade Federal de Lavras, Caixa Postal 3037, Lavras, MG 37200-000, Brazil
| | - P. J. White
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
| | - R. A. Braga
- Universidade Federal de Lavras, Caixa Postal 3037, Lavras, MG 37200-000, Brazil
| | - L. X. Dupuy
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
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