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Journal of Environmental Sciences 2018年第5期30卷 198-205页

作者： In Chul Kong Kyung Seok Ko Mun Hui Lee Ji Hwoan Lee Young-Hwan Han Department of Environmental Engineering Yeungnam UniversityGyungsan 38541Republic of Korea Geologic Environment Division Korea Institute of Geoscience and Mineral Resources(KIGAM)Daejeon 34132Republic of Korea School of Materials Science and Engineering Yeungnam University Gyungsan 38541Republic of Korea International School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430079China

The toxic effects of the composites of Fe^0 and Cu^0 with different percentages of CNTs were examined based on the activity of bacterial bioluminescence and seed germination. In terms of the EC50 values, the toxic effects of Cu^0 on bacterial bioluminescence and seed germination were approximately 2 and 180 times greater than that of Fe^0, respectively. The toxicity increased with increasing CNT content in the Cu-CNT mixtures for both organisms,whereas opposite results were observed with Fe-CNT mixtures. The mean toxic effects of Cu-CNT（6%） were approximately 1.3–1.4 times greater than that of Cu-CNT（0%）, whereas the toxic effects of Fe-CNT（6%） were approximately 2.1–2.5 times lower than that of Fe-CNT（0%） for both the bioluminescence activity and seed germination. The causes of this phenomenon are unclear at this point. More research will be needed to elucidate the mechanism of the toxicity of nano-mixture materials and the causes of the different patterns of toxicity with Cu-and Fe-CNT mixtures.

关键词： Metal-CNT complex bioluminescence Seed germination Toxic effect

Joint effects of heavy metal binary mixtures on seed germination,root and shoot growth,bacterial bioluminescence,and gene mutation

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Journal of Environmental Sciences 2013年第5期25卷 889-894页

作者： In Chul Kong Department of Environmental Engineering Yeungnam UniversityKyungbuk 712-749Korea

This investigation was to assess the joint effects of metal binary mixtures on seed germination,root and shoot growth,bacterial bioluminescence,and gene mutation based on the one toxic unit（1 TU）*** sensitivities and orders of toxicity of metal mixtures were observed among the *** general,mostly additive or antagonistic effects were observed,while almost no synergistic effects by the binary metal mixtures in all ***,the combined effects of heavy metals in the different bioassays were difficult to generalize since they were dependent on both chemical type and the organism used in each ***, these results indicate that a battery of bioassays with mixture chemicals as opposed to just a single assay with single metal is a better strategy for the bioassessment of environmental pollutants.

关键词： binary mixture bioluminescence heavy metal revertant mutation seed germination toxicity

Application of stimulating agents on the immobilized bioluminescence strain Pseudomonas putida mt-2 KG1206,preserved by deep-freezing,for the convenient biomonitoring

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Journal of Environmental Sciences 2010年第9期22卷 1475-1480页

作者： In Chul Kong Department of Environmental Engineering Yeungnam University

This study was conducted to develop methods for the application of an immobilized bioluminescence strain （KG1206）, preserved by deep-freezing （DF）, for the monitoring of contaminated environments. The immobilized cells, preserved by DF, required approximately 2 hr for reconstitution of their activity. A large reduction in bioluminescence was observed due to the DF process; 0.07-0.58 times that of the non deep-frozen （NDF） immobilized strain. The decreased bioluminescence activity induced by the DF process was enhanced by the stimulants, sodium lactate （SL） and KNO3. However, regardless of the inducer chemical tested, the immobilized strain modified with KNO3 consistently produced greater bioluminescence than that treated with SL, in the range of 3.0-10.7 （avg. 6.7± 3.69） and 1.2-4.2 （avg. 2.4 ± 1.47） times that of control, respectively. All KNO3 treatments of contaminated groundwater samples also resulted in an increase in bioluminescence activity, but the rate of stimulation varied for each sample. Also, no strong linear correlation was observed between the bioluminescence and the total concentration of an inducer, which may related to the complex characteristics of the environmental samples. Overall, the results demonstrated the ability of immobilized genetically engineered bacteria, preserved by DF, to measure a specific group of environmental contaminants using a stimulating agent （KNO3）, suggesting the potential for its preliminary application in a field-ready bioassay.

关键词： bioluminescence biomonitoring deep-freezing groundwater immobilization

Computational bioluminescence

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Chinese Journal of Chemistry 2021年第1期39卷 43-49页

作者： Yi-Qi Tang Ya-Jun Liu College of Chemistry Beijing Normal UniversityBeijing 100875China

bioluminescence(BL)is an amazing natural phenomenon whose visible light is pro-duced by living *** to its high sensitivity,high selectivity and high signal-to-noise ratio,BL has been applied broadly in biotechnology and biomedical ***,for centuries,we can only receive some sporadic and static information from experimental observations,the mechanism of most BL is *** the past 14 years,we have been performing theoretical study on all kinds of bioluminescent systems,and have uncovered the mechanism and details of several *** as an example,we qualitatively introduce our theoretical study of firefly BL in this account.

关键词： bioluminescence Reaction mechanisms Density functional calculations Ab initio calculations Molecular dynamics

Synchronized bioluminescence behavior of a set of fireflies involving fractional operators of Liouville-Caputo type

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International Journal of Biomathematics 2018年第3期11卷 221-245页

作者： J. E. Escalante-Martínez J. F. Gómez-Aguilar C. Calderón-Ramón A. Aguilar-Meléndez P. Padilla-Longoria Facultad de Ingenierla Mecdnica y Eldctrica Universidad Veracruzana Av. Venustiano Carranza S/N Col. Revolución C.P. 93390 Poza Rica Veracruz Mdéxico CONACyT- Tecnoldgico Nacional de México/CENIDET Interior Internado Palmira S/N Col. Palmira C.P. 62490 Cuernavaca Morelos México Facultad de Ingeniería Mecdnica y Eléctrica Universidad Veracruzana Av. Venustiano Carranza S/N Col. Revolución C.P. 93390 Poza Rica Veracruz México Facultad de Ingeniera Civil Universidad Veracruzana Av. Venustiano Carranza S/N Col. Revolución C.P. 93390 Poza Rica Veracruz México Instituto de Investigaciones en Matemdticas Aplicadas y Sistemas (IIMAS) UNAM Circuito Escolar Cd. Universitaria Del. Coyoacan México D.F. C.P. 04510 México

In this paper, a system of fractional differential equations that model the synchronized bioluminescence behavior of a set of fireflies put on two spatial arrangements is presented; the alternative representation of these equations contains fractional operators of IAouvillc-Caputo type. The objective of the model is to qualitatively recover synchronization and show that it is persistent. It is shown that the effort made by each firefly glow changes with respect to the number of male competitors and the distance between them. The conditions on biological parameters are interpreted.

关键词： Fractional calculus Liouville Caputo fractional derivative synchronicity fireflies bioluminescence Adams Bashforth-Moulton method.

Luminous fishes:Endocrine and neuronal regulation of bioluminescence

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Aquaculture and Fisheries 2024年第3期9卷 486-500页

作者： José Paitio Yuichi Oba Department of Environmental Biology Chubu UniversityKasugai487-8501Japan

bioluminescence is the ability of organisms to emit their own light which can be self-produced in light organs by photogenic cells(photocytes)or symbiotically by bearing cultures of luminous *** animals are mainly comprised in the ocean,nocturnal coastal shallow-water species or,as the majority of species,inhabiting deep-sea where dim light conditions are optimal for communication by luminous *** to difficult access to species,fisheries of bioluminescent fishes worldwide are rare,mostly for traditional cuisine and fishing *** are the only bioluminescent vertebrates and thus their light organs present an astonishing level of complexity for light modulation to adequate light signals for specific ecological *** control the output of light intensity using different mechanisms which can be categorized as being under control of hormonal or neuronal ***,neural control allows fast and direct response to the photocytes while endocrinal systems allow to control the light produced by bacteria,via manipulation of individual *** some species,mechanical movement of melanophore-filled tissues by muscular action is under neuronal or hormonal *** dimorphism of light organs,driven by hormonal regulation during ontogeny,takes a crucial role in communication and reproductive success of these species.

关键词： bioluminescence Fish Hormonal Neural Endocrinological Control

Improved AFEM algorithm for bioluminescence tomography based on dual-mesh alternation strategy

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Chinese Optics Letters 2012年第2期10卷 71-74页

作者：李维赵恒屈晓超侯彦宾陈雪利陈多芳贺小伟张岐坦梁继民 Life Sciences Research Center School of Life Sciences and TechnologyXidian University

Adaptive finite element method （AFEM） is broadly adopted to recover the internal source in biological tissues. In this letter, a novel dual-mesh alternation strategy （dual-mesh AFEM） is developed for bioluminescence tomography. By comprehensively considering the error estimation of the finite element method solution on each mesh, two different adaptive strategies based on the error indicator of the reconstructed source and the photon flux density are used alternately in the process. Combined with the constantly adjusted permissible region in the adaptive process, the new algorithm can achieve a more accurate source location compared with the AFEM in the previous experiments.

关键词： Algorithms bioluminescence Finite element method Tomography

bioluminescence and Chitinase Production during Chitin Fermentation by Vibrio harveyi

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Journal of Life Sciences 2013年第5期7卷 491-494页

作者： Badireddy Madhusudana Rao Floyd L. Inman Ⅲ Leonard D. Holmes Sartorius Stedim Biotechnology Laboratory Biotechnology Research and Training Center University of North Carolina NorthCarolina 28472 USA Central Institute of Fisheries Technology Visakhapatnam Research Centre Andhra University Visakhapatnam 530003 India

Vibrio harveyi, like other luminescent bacteria, is capable of producing extracellular chitinases. Microbial chitinases are utilized to depolymerize chitin into chitooligosaccharides and N-acetylglucosamine for the acquisition of carbon and possibly nitrogen, needed for survival. For many luminous marine bacteria （Vibrio spp.）, quorum-sensing is highly speculated to be responsible for bioluminescence; however, in terrestrial species （Photorhabdus spp.） luminosity seems to be controlled through unknown mechanism of phase variation. In the present work, the correlation between bacterial luminosity and chitinase production of F. harveyi was studied. The utilization of bioluminescence could prove to be an easier and more convenient method to monitor chitin fermentations that employ luminous bacteria. Results from the fermentation study indicate that luminosity of F. harveyi inversely correlates with chitinase production. In other words, during chitin fermentation, chitinase production was seen to increase while luminosity decreased with respect to growth and growth conditions. Furthermore, the results also suggest that V. harveyi may utilize an alternate mechanism that can counter quorum-sensing mechanisms to ensure bacterial survival under deteriorating growth conditions. The inverse relationship observed in this study may lead to a basic understanding of monitoring and studying chitin fermentations and anti-quorum-sensing/phase variation mechanisms exhibited by luminous bacteria.

关键词： Vibrio harveyi bioluminescence chitinase chitin fermentation.

Variability of the bioluminescence characteristics of the Black Sea ctenophores-aliens in connection with different conditions of nutrition

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Advances in Bioscience and Biotechnology 2013年第11期4卷 968-973页

作者： Mashukova Olga Tokarev Yuriy Department of the Biophysical Ecology Kovalevsky Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol Ukraine

Many ecological-physiological characteristics of ctenophores-aliensMnemiopsis leidyi A. Agassiz, 1865 and Beroe ovata Mayer, 1912 are studied quite well because they play a very important ecological role in the Black Sea ecosystem. However, bioluminescence, one of the most important elements of the ctenophores ecology and its connection with feeding regime were not studied sufficiently. Experiments have shown that characteristics of the ctenophores bioluminescence differed considerably in dependence of food supplies. Thus, amplitude and light-emitting energy of the fed ctenophores B. ovata are maximal, 3 times more than analogical indices of the just-caught individuals and 4 times more than ones of starving individuals. More prolonged flash signal (to 3.5 s), which exceeds light-emitting duration of the starving individuals twice, can be registered from the fed ctenophores. Investigation of the M. leidyi bioluminescence has shown that amplitude and light-emitting energy of the just-caught ctenophores were two times more than those of the starving individuals. At the same time, light-emitting amplitude of the fed individuals is 6.5 times and light-emitting energy is 3 - 4 times higher than that of the just-caught ctenophores. The light-emitting duration of the starving and justcaught organisms is practically the same. The most prolonged signal is registered from the fed ctenophores—up to 2.8 s. The data obtained testify that characteristics of the ctenophores bioluminescence can be conditioned not only by nutritional value but by the composition of the food as well.

关键词： bioluminescence Beroe ovata Mnemiopsisleidyi Black Sea Nutrition

Some Theoretical and Applied Aspects of the Oceanic bioluminescence Registration from Space

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Advances in Bioscience and Biotechnology 2017年第9期8卷 283-294页

作者： Yuriy Tokarev Vladimir Vasilenko Olga Mashukova Biophysical Ecology Department Federal State Budget Institution of Science “A.O. Kovalevsky Institute of Marine Biological Research RAS” Sevastopol Russia

The analysis of the surface bioluminescence in the World Ocean registration problems for the purposes of its regions ecological express-monitoring and evaluation of the plankton algae spatial distribution at night time by the existing space systems has been proposed. The connection of the plankton community characteristics with a bioluminescent potential (BP) in the euphotic layer and a possibility to evaluate BP according to bioluminescence intensity in the near-surface layer of 0 - 10 m has been demonstrated. It has been shown that with complete correspondence with the vertical structure in the plankton community at the dark time bioluminescence intensity in 0 - 10 m layer exceeds the same in 60 - 70 m layer for one and a half orders and practically determines BP in 0 - 100 m layer. Peculiarities of the plankton organisms light emission, important for the oceanic bioluminescence registration with the space means of observation are under discussion. Equation for calculation of the measured by the space device sea luminescence level and volume of the bioluminescence intensity in the surface layer of theWorldOcean, which can be registered due to modern technical means of the space systems has been corrected. The conclusion has been done that on the base of the space data about spatial and temporal phytoplankton distribution and bioluminescence “in situ” measurements it is possible to create regional algorithms for transition from numerical estimations of the phytoplankton (chlorophyll “a”) to the day time bioluminescent potential and solution of inverse tasks at night time.

关键词： Plankton Sea bioluminescence Space Systems