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Pankin D, Povolotckaia A, Borisov E, Povolotskiy A, Borzenko S, Gulyaev A, Gerasimenko S, Dorochov A, Khamuev V, Moskovskiy M. Investigation of Spectroscopic Peculiarities of Ergot-Infected Winter Wheat Grains. Foods 2023; 12:3426. [PMID: 37761134 PMCID: PMC10528831 DOI: 10.3390/foods12183426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/24/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Wheat has played an important role in human agriculture since ancient times. Increasing rates of processed wheat product fabrication require more and more laboratory studies of product quality. This, in turn, requires the use, in production and in field conditions, of sufficiently accurate, fast and relatively low-cost quality control methods, including the detection of fungal diseases. One of the most widespread fungal diseases of wheat in the world is ergot caused by the fungi genus Claviceps. Optical methods are promising for this disease identification due to the relative ease of implementation and the possibility of performing fast analyses in large volumes. However, for application in practice, it is necessary to identify and substantiate characteristic spectral markers that make it possible to judge the sample contamination. In this regard, within the framework of this study, the methods of IR absorption spectroscopy in the MIR region and reflection spectroscopy in the UV-vis-NIR ranges, as well as luminescence spectroscopy, were used to study ergot-infected grains of winter wheat of the "Moskovskaya 56" cultivar. To justify the choice of the most specific spectral ranges, the methods of chemometric analysis with supervised classification, namely PCA-LDA and PCA-SVM, were applied. The possibility of separating infected grains according to the IR absorption, reflection spectra in the UV-vis-NIR ranges and visible luminescence spectra was tested.
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Affiliation(s)
- Dmitrii Pankin
- Center for Optical and Laser Materials Research, St. Petersburg State University, Ulianovskaya 5, 198504 St. Petersburg, Russia; (D.P.); (E.B.)
| | - Anastasia Povolotckaia
- Center for Optical and Laser Materials Research, St. Petersburg State University, Ulianovskaya 5, 198504 St. Petersburg, Russia; (D.P.); (E.B.)
| | - Eugene Borisov
- Center for Optical and Laser Materials Research, St. Petersburg State University, Ulianovskaya 5, 198504 St. Petersburg, Russia; (D.P.); (E.B.)
| | - Alexey Povolotskiy
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia;
| | - Sergey Borzenko
- Federal Scientific Agro-Engineering Center VIM, 1st Institutskiy proezd 5, 109428 Moscow, Russia; (S.B.); (A.G.); (S.G.); (A.D.); (V.K.); (M.M.)
| | - Anatoly Gulyaev
- Federal Scientific Agro-Engineering Center VIM, 1st Institutskiy proezd 5, 109428 Moscow, Russia; (S.B.); (A.G.); (S.G.); (A.D.); (V.K.); (M.M.)
| | - Stanislav Gerasimenko
- Federal Scientific Agro-Engineering Center VIM, 1st Institutskiy proezd 5, 109428 Moscow, Russia; (S.B.); (A.G.); (S.G.); (A.D.); (V.K.); (M.M.)
| | - Alexey Dorochov
- Federal Scientific Agro-Engineering Center VIM, 1st Institutskiy proezd 5, 109428 Moscow, Russia; (S.B.); (A.G.); (S.G.); (A.D.); (V.K.); (M.M.)
| | - Viktor Khamuev
- Federal Scientific Agro-Engineering Center VIM, 1st Institutskiy proezd 5, 109428 Moscow, Russia; (S.B.); (A.G.); (S.G.); (A.D.); (V.K.); (M.M.)
| | - Maksim Moskovskiy
- Federal Scientific Agro-Engineering Center VIM, 1st Institutskiy proezd 5, 109428 Moscow, Russia; (S.B.); (A.G.); (S.G.); (A.D.); (V.K.); (M.M.)
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Moskovsky MN, Shogenov YH, Lavrov AV, Gulyaev AA, Efremenkov IY, Pyatchenkov DS, Belyakov MV. Spectral Photoluminescent Parameters of Barley Seeds (Hordéum vulgáre) Infected with Fusarium ssp. Photochem Photobiol 2023; 99:29-34. [PMID: 35567504 DOI: 10.1111/php.13645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 05/10/2022] [Indexed: 01/25/2023]
Abstract
We needed effective and sustainable technologies for better microbiological control of crops, including Fusarium. However, photoluminescent UV-Vis methods are potential for diagnosing plant diseases with Fusarium. It has not been sufficiently studied despite the application of these methods for other biological researches. The excitation spectrum of the seeds during infection shifts to the shorter wavelength and a new maximum appears in the region λ ≈ 232 nm. The photoluminescence of infected seeds increases with excitation by radiation of wavelengths λe,1 = 232 nm, λe,2 = 362 nm and λe,3 = 424 nm by 1.33-3.14 times, and λe,3 = 424 nm-decreases by 1.1 times. Statistical moments μ3 and μ4 , asymmetry and kurtosis change only with short-wave excitation. When analyzing the decomposition of the frequency spectrum into Gaussian curves, the most informative ratio is the ratio of right-handed and left-handed Gaussians under excitation λe,2 = 362 nm and λe,3 = 424 nm. The ratios of their maxima change during infection by 1.36-3.2 times, and for excitation by radiation λe,2 , the frequency boundaries of Gaussians change. The results of measurements and calculations provide a basis for the development of a method and device for photoluminescence diagnostics of fusarium seeds in UV-Vis ranges.
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Affiliation(s)
| | - Yuri H Shogenov
- Federal Scientific Agroengineering Center VIM, Moscow, Russia
| | | | | | - Igor Yu Efremenkov
- branch of National Research University of Moscow Energy Institute, Smolensk, Russia
| | - Denis S Pyatchenkov
- branch of National Research University of Moscow Energy Institute, Smolensk, Russia
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Belyakov MV. Photoluminescent Sensor of Scarification Efficiency of Fodder Plants' Seeds. SENSORS (BASEL, SWITZERLAND) 2022; 23:106. [PMID: 36616702 PMCID: PMC9823714 DOI: 10.3390/s23010106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/17/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Optoelectronic sensors open up new possibilities for predicting the yield for their possible correction, including increasing the seed germination of forage plants. The luminescent properties of unscarified and scarified seeds of various germination galega, clover and alfalfa are compared. The dependence of germination on the photoluminescence flux is approximated by linear equations with a determination coefficient R2 = 0.932-0.999. A technological process for analyzing the scarification quality of forage seed plants is proposed, including sample preparation, photoluminescence excitation and registration, amplification of the received electrical signal and determination of germination based on calibration equations. This is followed by a decision on sowing, or re-scarification. The scheme of the scarification quality control device has been developed for which the LED, as well as the radiation receiver and other elements, has been selected according to the energy efficiency criterion. Mechanical scarification of the forage plants' seed surfaces has a significant effect on their photoluminescent properties. The flux increases by 1.5-1.7 times for galega, 2.0-3.0 times for clover and 2.3-3.9 times for alfalfa. Linear approximation of the flux dependence on germination with a high coefficient of determination allows us to obtain reliable linear calibration equations. Preliminary mock-up laboratory tests allow us to talk about the developed method's effectiveness and device.
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Method of Optical Diagnostics of Grain Seeds Infected with Fusarium. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12104824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Optical sensors have shown good capabilities for detecting and monitoring plant diseases, including fusariosis. The spectral characteristics of the excitation and luminescence of wheat, oat and barley seeds were measured using a diffraction spectrofluorimeter in the range of 180–700 nm. It was found that during infection, the spectral density of the absorption capacity increases and the curve ηe(λ) shifts upwards in the range of 380–450 nm. The shift to the left is also noticeable for the wheat and barley spectra. The photoluminescence flux at λe = 232 nm increased by 1.71 times when oat seeds were infected, by 2.63 times when wheat was infected and by 3.14 times when barley was infected. The dependences of the infection degree on the photoluminescence flux are statistically and reliably approximated by linear regression models with determination coefficients R2 = 0.83–0.95. The method of determining the degree of infection can include both absolute measurements of photoluminescence flux in the range of 290–380 nm and measurements of the flux ratios when excited by radiation of 232 nm and 424 nm for wheat and 485 nm for barley. An optoelectronic device for remote monitoring can be designed in order to implement the methodology for determining the degree of infection of agricultural plant seeds.
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