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Articles de revues sur le sujet « Ultraviolet radiation Physiological effect »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 20 février 2023

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1

Kumar, Sunil, and Priyanka Kumari. "High intensity ultraviolet radiation induced changes in aquatic arthropod with retene and riboflavin." Environment Conservation Journal 12, no. 3 (December 22, 2011): 83–87. http://dx.doi.org/10.36953/ecj.2011.120316.

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Ozone depletion is resulting into increase in ultraviolet radiation level in the world. Exposure to UV radiation has been found to have negative effects on aquatic and terrestrial organisms. Adverse effect of natural solar and artificial ultraviolet-B and UV-A radiations was observed in crustacean species Daphnia magna in presence of retene and riboflavin. Daphnia magna exposed to artificial ultraviolet-B with retene causes maximum physiological changes and mortality, indicating that enhanced solar UV-B exposure could be lethal to aquatic fauna. Artificial UV-B had a stronger damaging effect t

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Zelenkov, Valery N., Anatoly A. Lapin, Vyacheslav V. Latushkin, and Vladimir V. Karpachev. "Effect of ultraviolet radiation on plant biochemical properties." Butlerov Communications 63, no. 8 (August 31, 2020): 134–40. http://dx.doi.org/10.37952/roi-jbc-01/20-63-8-134.

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Depletion of the ozone layer leads to increased ultraviolet radiation, which affects the growth and functioning of plants and leads to their various physiological, biochemical, morphological and ultrastructural changes. When studying the effect of ultraviolet radiation on seed sowing qualities and biometric indicators of morphological organs of plants of various cultures, scientists did not come to a consensus on the optimal parameters of its effects. For seeds of each plant variety, there is an optimal amount of energy absorbed, resulting in a maximum effect. Ecologically significant low ultr

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Gulin, A. V., and V. I. Donskaya. "Comparative assessment of the nature of the impact of ultraviolet radiation on watermelon seeds in time mode." Vegetable crops of Russia, no. 6 (December 18, 2019): 155–58. http://dx.doi.org/10.18619/2072-9146-2019-6-155-158.

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Relevance. One of the main components of the spectrum of sunlight is ultraviolet rays – invisible to the human eye short-wave radiation. The influence of these rays on plant life was considered insignificant until recently, but recent studies have shown the fallacy of such conclusions. Ultraviolet has a beneficial effect not only on the human body and animals, but also on plants, including – crops. The destruction of the ozone layer is currently continuing under the influence of anthropogenic factors. In this regard, the study of the effect of ultraviolet radiation on living organisms, includi

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Balouchi, H. R., S. A. M. M. Sanavy, Y. Emam, and A. Dolatabadian. "UV radiation, elevated CO2 and water stress effect on growth and photosynthetic characteristics in durum wheat." Plant, Soil and Environment 55, No. 10 (October 21, 2009): 443–53. http://dx.doi.org/10.17221/1024-pse.

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Climate change studies are of considerable interest in agriculture and environmental science. The objective of this research was to investigate the changes in photosynthetic pigments and other physiological and biochemical traits of durum wheat exposed to ultraviolet A, B and C radiation, elevated CO<sub>2</sub> and water stress. The results showed that carotenoids, anthocyanins, flavonoids and proline content increased significantly by decreasing ultraviolet wavelength compared to control. Elevated CO<sub>2</sub> increased only height and specific leaf area. Water stre

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Ferreyra, G. A., S. Demers, P. A. del Giorgio, and J. P. Chanut. "Physiological responses of natural plankton communities to ultraviolet-B radiation in Redberry Lake (Saskatchewan, Canada)." Canadian Journal of Fisheries and Aquatic Sciences 54, no. 3 (March 1, 1997): 705–14. http://dx.doi.org/10.1139/f96-322.

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Damaging effects of ultraviolet radiation on the aquatic biota, related to anthropogenic modifications in the ozone layer, have been extensively described. However, most of the research has focused on marine environments, and information about the effects of ultraviolet radiation on saline prairie lakes of Canada is lacking. To test the deleterious effects of ultraviolet-B (UV-B) radiation on the planktonic community, two exposure experiments were performed in Redberry Lake, Saskatchewan. The responses of primary productivity, phytoplankton chlorophyll a and size, bacterial changes, and the el

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Albi, Elisabetta, Samuela Cataldi, Maristella Villani, and Giuseppina Perrella. "Nuclear Phosphatidylcholine and Sphingomyelin Metabolism of Thyroid Cells Changes during Stratospheric Balloon Flight." Journal of Biomedicine and Biotechnology 2009 (2009): 1–5. http://dx.doi.org/10.1155/2009/125412.

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Nuclear sphingomyelin and phosphatidylcholine metabolism is involved in the response to ultraviolet radiation treatment in different ways related to the physiological state of cells. To evaluate the effects of low levels of radiation from the stratosphere on thyroid cells, proliferating and quiescent FRTL-5 cells were flown in a stratospheric balloon (BIRBA mission). After recovery, the activity of neutral sphingomyelinase, phosphatidylcholine-specific phospholipase C, sphingomyelin synthase, and reverse sphingomyelin synthase was assayed in purified nuclei and the nuclei-free fraction. In pro

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Nassour, Rana, and Abdulkarim Ayash. "Effects of Ultraviolet-B Radiation in Plant Physiology." Agriculture (Pol'nohospodárstvo) 67, no. 1 (April 1, 2021): 1–15. http://dx.doi.org/10.2478/agri-2021-0001.

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Abstract Over the past few decades, anthropogenic activities contributed to the depletion of the ozone layer, which increased the levels of solar ultraviolet-B (UV-B) radiation reaching the Earth`s surface. Generally, UV-B is harmful to all living organisms. It damages the cell`s Deoxyribonucleic acid (DNA), proteins, and lipids, and as a consequence, it affects the bio-membranes negatively. In this review, we summarize the major effects of UV-B in the plant`s main molecules and physiological reactions, in addition to the possible defence mechanisms against UV-B including accumulating UV-B abs

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Cechin, Inês, Terezinha de Fátima Fumis, and Anne Ligia Dokkedal. "Growth and physiological responses of sunflower plants exposed to ultraviolet-B radiation." Ciência Rural 37, no. 1 (February 2007): 85–90. http://dx.doi.org/10.1590/s0103-84782007000100014.

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The effects of UV-B radiation were studied in sunflower plants (Helianthus annuus L. cv. Catissol-01) growning in greenhouse under natural photoperiod conditions. The plants received approximately 0.60Wm-2 (control) or 4.0Wm-2 (+UV-B) of UV-B radiation for 7h d-1, centered around solar noon from 15 days after sowing. Compared to the control, plants exposed to high UV-B radiation for 12 or 21 days did not show any difference in shoot dry matter, specific leaf weight or UV-B absorbing compounds. Enhanced UV-B radiation caused a significant inhibition of photosynthesis (A) only in the first sampl

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Fischer, Gerhard, Fernando Ramírez, and Fánor Casierra-Posada. "Ecophysiological aspects of fruit crops in the era of climate change. A review." Agronomía Colombiana 34, no. 2 (May 1, 2016): 190–99. http://dx.doi.org/10.15446/agron.colomb.v34n2.56799.

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The increased concentration of carbon dioxide (CO2) and other greenhouse effect gases has led to global warming, which has resulted in climate change, increased levels of ultraviolet (UV) radiation and changes in the hydrological cycle, affecting the growth, development, production and quality of fruit crops, which undoubtedly will be difficult to predict and generalize because the physiological processes of plants are multidimensional. This review outlines how the effects of high/low solar radiation, temperature, water stress from droughts, flooding and rising levels of CO2 in the atmosphere

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Craver, Joshua K., Chad T. Miller, Kimberly A. Williams, and Nora M. Bello. "Ultraviolet Radiation Affects Intumescence Development in Ornamental Sweetpotato (Ipomoea batatas)." HortScience 49, no. 10 (October 2014): 1277–83. http://dx.doi.org/10.21273/hortsci.49.10.1277.

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Intumescences are a physiological disorder characterized by hypertrophy and possibly hyperplasia of plant tissue cells. Ultimately, this disorder results in the death of the affected cells. Previous observations and research suggest that the quality and quantity of light to which plants are exposed may be a factor in development of the disorder. The purpose of this study was to assess the preventive effect of ultraviolet-B (UVB) radiation on intumescence development in ornamental sweetpotato (Ipomoea batatas). Two sweetpotato cultivars, Sidekick Black and Ace of Spades, were grown under light

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Neven, Lisa G. "Physiological Effects of Physical Postharvest Treatments on Insects." HortTechnology 13, no. 2 (January 2003): 272–75. http://dx.doi.org/10.21273/horttech.13.2.0272.

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As concerns about the safety of our food supply increase along with concerns about the impact of agricultural chemicals on our environment, the development of nonchemical quarantine treatments to meet export requirements become increasingly necessary. The types of physical treatments used have been largely determined by commodity tolerances and processing practices. The most common physical treatments use temperature extremes such as heat [>40 °C (104.0 °F)] and cold [<10 °C (50.0 °F)]. Other physical treatments commonly include the use of controlled or modified atmospheres (low oxygen,

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Ambasht, Navin Kumar, and Madhoolika Agrawal. "Physiological and biochemical responses of Sorghum vulgare plants to supplemental ultraviolet-B radiation." Canadian Journal of Botany 76, no. 7 (July 1, 1998): 1290–94. http://dx.doi.org/10.1139/b98-137.

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Sorghum (Sorghum vulgare (Pers.) cv. MSH 51) plants were grown in the field under ambient and supplemental levels of ultraviolet-B radiation (UV-B; supplemental daily dose corresponding to a 20% reduction in the stratospheric ozone column). Gas exchange characteristics, biomass, and levels of photosynthetic pigments, flavonoids, catalase, peroxidase activity, and ascorbic acid were determined to evaluate the changes induced by enhanced levels of UV-B irradiation. Gas exchange analysis indicated that one of the reasons for the decline in photosynthesis is stomatal limitation. Enhanced UV-B also

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Lombardi, Lisa, Marina Zoppo, Cosmeri Rizzato, Colin Gerard Egan, Roberto Scarpato, and Arianna Tavanti. "Use of Amplification Fragment Length Polymorphism to Genotype Pseudomonas stutzeri Strains Following Exposure to Ultraviolet Light A." Polish Journal of Microbiology 66, no. 1 (March 30, 2017): 107–11. http://dx.doi.org/10.5604/17331331.1234998.

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Changes in ultraviolet light radiation can act as a selective force on the genetic and physiological traits of a microbial community. Two strains of the common soil bacterium Pseudomonas stutzeri, isolated from aquifer cores and from human spinal fluid were exposed to ultraviolet light. Amplification length polymorphism analysis (AFLP) was used to genotype this bacterial species and evaluate the effect of UVA-exposure on genomic DNA extracted from 18 survival colonies of the two strains compared to unexposed controls. AFLP showed a high discriminatory power, confirming the existence of differe

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Lin, Xiaokai, Feng Liu, Haizhi Liao, Jingjia Du, Junjie Peng, and Kaibing Zhou. "Effect of Enhanced Ultraviolet-B Radiation on Fruit Maturity and Quality and Leaf Photosynthesis in ‘Guifei’ Mango." HortScience 57, no. 9 (September 2022): 1167–72. http://dx.doi.org/10.21273/hortsci16738-22.

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To investigate the characteristics of photosynthetic physiological changes in leaves of Mangifera indica L. cv. Guifei under enhanced ultraviolet (UV)-B radiation, natural light-exposed trees were used as controls and 96 kJ·m−2·d−1 enhanced UV-B radiation was artificially simulated in the field. The changes in fruit maturity and quality, the leaf net photosynthetic rate (Pn), photosynthetic pigment contents, photochemical reactions, the activities of photosynthetic enzymes and related gene expression levels were determined. Compared with the control, the percentage of mature fruits under the t

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Morillas, Lourdes, Javier Roales, Cristina Cruz, and Silvana Munzi. "Resilience of Epiphytic Lichens to Combined Effects of Increasing Nitrogen and Solar Radiation." Journal of Fungi 7, no. 5 (April 26, 2021): 333. http://dx.doi.org/10.3390/jof7050333.

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Lichens are classified into different functional groups depending on their ecological and physiological response to a given environmental stressor. However, knowledge on lichen response to the synergistic effect of multiple environmental factors is extremely scarce, although vital to get a comprehensive understanding of the effects of global change. We exposed six lichen species belonging to different functional groups to the combined effects of two nitrogen (N) doses and direct sunlight involving both high temperatures and ultraviolet (UV) radiation for 58 days. Irrespective of their function

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Wang, Wenlong, Chenglong Gao, Lili Ren, and Youqing Luo. "The Effect of Longwave Ultraviolet Light Radiation on Dendrolimus tabulaeformis Antioxidant and Detoxifying Enzymes." Insects 11, no. 1 (December 18, 2019): 1. http://dx.doi.org/10.3390/insects11010001.

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Longwave ultraviolet (UVA) light, in the range of 315–400 nm, has been widely used as a light source in the light trapping of insect pests. Previous studies have demonstrated the oxidative stress and lethal effect of UV radiation on insects. In this study, we evaluated the influence of UVA radiation on the antioxidant and detoxifying enzymes of Dendrolimus tabulaeformis. We tested the contents of malondialdehyde (MDA), hydroxyl radical (·OH), hydrogen peroxide (H2O2), reduced glutathione (GSH), and oxidized glutathione (GSSH) following different exposure time periods of UVA light irradiation o

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Vincent, Warwick F., and Suzanne Roy. "Solar ultraviolet-B radiation and aquatic primary production: damage, protection, and recovery." Environmental Reviews 1, no. 1 (January 1, 1993): 1–12. http://dx.doi.org/10.1139/a93-001.

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The continuing degradation of the Earth's ozone layer by atmospheric pollutants has generated concern about the impact of increased solar ultraviolet-B radiation (UV-B) on aquatic ecosystems. UV-B is a small (less than 1% of total energy) but highly active component of the solar spectrum that can penetrate to biologically significant depths in lakes and oceans. It has the potential to cause wide-ranging effects, including mutagenesis, chronic depression of key physiological processes, and acute physiological stress that may result in death. There are major uncertainties at present about the ap

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Lu, Yanwei, Baoli Duan, and Chunyang Li. "Physiological responses to drought and enhanced UV-B radiation in two contrasting Picea asperata populations." Canadian Journal of Forest Research 37, no. 7 (July 2007): 1253–62. http://dx.doi.org/10.1139/x07-006.

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The responses of two Picea asperata Mast. populations to enhanced ultraviolet B (UV-B) radiation under well-watered and drought conditions were investigated to further elucidate the effect of UV-B radiation on drought tolerance. Two P. asperata populations originating from wet- and dry-climate regions in China were employed. Drought significantly decreased the CO2 assimilation rate, stomatal conductance, and effective photosystem II quantum yield, while it significantly increased nonphotochemical quenching and the activity of superoxide dismutase in both populations. Compared with the wet-clim

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Cai, Heng Jiang, Zhi Hua Zhang, Chang Fa Liu, Hai Feng Wei, and Jun Xin Zhang. "Effects of UV-B Radiation on the Growth, Physiological and Biochemical Characteristics of Chondrus ocellatus Holm (Rhodophyta)." Advanced Materials Research 955-959 (June 2014): 222–26. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.222.

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Effects of enhanced ultraviolet B (UV-B, 280-320 nm) on macroalgae have gained particular attention in recent years. We investigated the changes in the growth, physiological and biochemical characteristics of C. ocellatus under UV-B radiation in this study. The results showed that UV-B could inhibit the growth of C. ocellatus (p<0.01) and the growth inhibition was more significant with increased doses of UV-B radiation. The effects of UV-B radiation on Chl-a content in C. ocellatus were not obvious. The soluble proteins content and MDA content in C. ocellatus were increased by UV-B radiatio

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Huovinen, Pirjo, Pablo Leal, and Iván Gómez. "Interacting effects of copper, nitrogen and ultraviolet radiation on the physiology of three south Pacific kelps." Marine and Freshwater Research 61, no. 3 (2010): 330. http://dx.doi.org/10.1071/mf09054.

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Coastal ecosystems currently face multiple environmental impacts, such as nutrient loading, chemical contamination and enhanced ultraviolet (UV) radiation. Large kelps dominate many rocky shores worldwide and their capacity to handle environmental stress could have major consequences for these systems. The impacts of the interaction of copper (150 μg L–1), nitrate (350 μM) and short-term UV radiation on the physiological responses (photosynthetic activity, contents and anti-oxidant activity of phlorotannins) of three large kelps, Macrocystis pyrifera, Lessonia nigrescens and Durvillaea antarct

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Kolokolova, A. Y., N. V. Ilyuhina, M. V. Trishkaneva, and A. A. Korolev. "The effect of combining microwave and ultraviolet methods of plant materials processing on Salmonella culture inhibition." Proceedings of the Voronezh State University of Engineering Technologies 82, no. 1 (May 15, 2020): 76–81. http://dx.doi.org/10.20914/2310-1202-2020-1-76-81.

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The research results concerning the application of physical methods of plant raw materials influencing - fresh beetroot - to inhibit microorganisms of Salmonella genus were presented in the work. Pathogenic microorganisms of Salmonella genus pose a threat to humans, being causative agents of typhoid fever, paratyphoid fever and other salmonellosis. The use of effective and available physical methods of influence in the fruit and vegetable processing technology allows us to ensure the maximum conservation of physiologically valuable components of the raw material and its safety. Microwave (micr

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CALDERINI, D. F., X. C. LIZANA, S. HESS, C. R. JOBET, and J. A. ZÚÑIGA. "Grain yield and quality of wheat under increased ultraviolet radiation (UV-B) at later stages of the crop cycle." Journal of Agricultural Science 146, no. 1 (September 6, 2007): 57–64. http://dx.doi.org/10.1017/s0021859607007447.

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SUMMARYThe increase of ultraviolet (UV-B) radiation could be a challenge for wheat production systems in Southern Chile, as in other areas. Previous reports have shown that increased UV-B radiation decreases wheat yield by affecting both grain number and grain weight. However, contrasting results have also been published showing no effect on wheat biomass and grain yield. In addition, little is known about the effect of higher UV-B radiation at particular periods of the crop cycle on grain quality traits. The objective of the present study was to evaluate grain yield, yield components and grai

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Watson, Megan K., Mark A. Mitchell, Adam W. Stern, Amber L. Labelle, Stephen Joslyn, Timothy M. Fan, Melissa Cavaretta, Micah Kohles, and Kemba Marshall. "EVALUATING THE CLINICAL AND PHYSIOLOGICAL EFFECTS OF LONG-TERM ULTRAVIOLET B RADIATION ON RABBITS (ORYCTOLAGUS CUNICULUS)." Journal of Exotic Pet Medicine 28 (January 2019): 43–55. http://dx.doi.org/10.1053/j.jepm.2018.04.016.

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Yoon, Hyo In, Hyun Young Kim, Jaewoo Kim, Myung-Min Oh, and Jung Eek Son. "Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents." International Journal of Molecular Sciences 22, no. 5 (March 7, 2021): 2701. http://dx.doi.org/10.3390/ijms22052701.

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Ultraviolet-B (UV-B) acts as a regulatory stimulus, inducing the dose-dependent biosynthesis of phenolic compounds such as flavonoids at the leaf level. However, the heterogeneity of biosynthesis activation generated within a whole plant is not fully understood until now and cannot be interpreted without quantification of UV-B radiation interception. In this study, we analyzed the spatial UV-B radiation interception of kales (Brassica oleracea L. var. Acephala) grown under supplemental UV-B LED using ray-tracing simulation with 3-dimension-scanned models and leaf optical properties. The UV-B-i

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Revin, Victor, Nelli Atykyan, Ekaterina Lyovina, Yuliya Dragunova, and Victoriya Ushkina. "Effect of ultraviolet radiation on physiological and biochemical properties of yeast Saccharomyces cerevisiae during fermentation of ultradispersed starch raw material." Electronic Journal of Biotechnology 31 (January 2018): 61–66. http://dx.doi.org/10.1016/j.ejbt.2017.11.004.

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Watson, Megan K., Adam W. Stern, Amber L. Labelle, Stephen Joslyn, Timothy M. Fan, Katie Leister, Micah Kohles, Kemba Marshall, and Mark A. Mitchell. "Evaluating the Clinical and Physiological Effects of Long Term Ultraviolet B Radiation on Guinea Pigs (Cavia porcellus)." PLoS ONE 9, no. 12 (December 17, 2014): e114413. http://dx.doi.org/10.1371/journal.pone.0114413.

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Li, Chunchun, Weining Yuan, Yuping Gou, Kexin Zhang, Qiangyan Zhang, Jing-Jiang Zhou, and Changzhong Liu. "The Impact of Ultraviolet-B Radiation on the Sugar Contents and Protective Enzymes in Acyrthosiphon pisum." Insects 12, no. 12 (November 25, 2021): 1053. http://dx.doi.org/10.3390/insects12121053.

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Natural and anthropogenic changes have been altering many environmental factors. These include the amount of solar radiation reaching the Earth’s surface. However, the effects of solar radiation on insect physiology have received little attention. As a pest for agriculture and horticulture, aphids are one of the most difficult pest groups to control due to their small size, high fecundity, and non-sexual reproduction. Study of the effects of UV-B radiation on aphid physiology may provide alternative control strategies in pest management. In this study, we examined the effects of UV-B radiation

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Dzierżyńska, Anna. "„Good” and „Bad” Ozone - Evaluation on the Basis of Plant Reaction to Ozone / „Dobry” I „Zły” Ozon - Ocena Na Podstawie Reakcji Roślin Na Ozon." Chemistry-Didactics-Ecology-Metrology 17, no. 1-2 (December 1, 2012): 97–112. http://dx.doi.org/10.2478/cdem-2013-0009.

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Abstract Ozone is a natural and artificial chemical compound of Earth’s atmosphere. O3 is an absorbent of ultraviolet and infrared radiation and has strong oxidative properties. In the stratosphere the ozone layer protects the planet’s surface from dangerous UV radiation, its indirect effect on plant organisms is positive so stratospheric ozone can be called “good” ozone. The depletion of the ozone layer, as a result of atmosphere pollution, described as an ozone “hole” is causing UVB radiation enhanced level on Earth’s surface. The genetic, cytological, physiological and morphological reactio

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Hock, Maria, Carolin Plos, Maria Sporbert, and Alexandra Erfmeier. "Combined Effects of UV-B and Drought on Native and Exotic Populations of Verbascum thapsus L." Plants 9, no. 2 (February 18, 2020): 269. http://dx.doi.org/10.3390/plants9020269.

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During plant invasions, exotic species have to face new environmental challenges and are affected by interacting components of global change, which may include more stressful environmental conditions. We investigated an invasive species of New Zealand grasslands, commonly exposed to two concomitant and limiting abiotic factors—high levels of ultraviolet-B radiation and drought. The extent to which Verbascum thapsus may respond to these interacting stress factors via adaptive responses was assessed in a greenhouse experiment comprising native German plants and plants of exotic New Zealand origi

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Jacobo-Velázquez, Daniel A., Melissa Moreira-Rodríguez, and Jorge Benavides. "UVA and UVB Radiation as Innovative Tools to Biofortify Horticultural Crops with Nutraceuticals." Horticulturae 8, no. 5 (April 28, 2022): 387. http://dx.doi.org/10.3390/horticulturae8050387.

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The consumption of fruits and vegetables is related to the prevention and treatment of chronic–degenerative diseases due to the presence of secondary metabolites with pharmaceutical activity. Most of these secondary metabolites, also known as nutraceuticals, are present in low concentrations in the plant tissue. Therefore, to improve the health benefits of horticultural crops, it is necessary to increase their nutraceutical content before reaching consumers. Applying ultraviolet radiation (UVR) to fruits and vegetables has been a simple and effective technology to biofortify plant tissue with

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de Almeida, Sérgio L., Éder C. Schmidt, Debora Tomazi Pereira, Marianne Kreusch, Marthiellen R. de L. Felix, Luz K. P. Osorio, Roberta de Paula Martins, et al. "Effect of ultraviolet-B radiation in laboratory on morphological and ultrastructural characteristics and physiological parameters of selected cultivar of Oryza sativa L." Protoplasma 250, no. 6 (May 25, 2013): 1303–13. http://dx.doi.org/10.1007/s00709-013-0512-0.

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Fang, Yujie, and Minato Wakisaka. "A Review on the Modified Atmosphere Preservation of Fruits and Vegetables with Cutting-Edge Technologies." Agriculture 11, no. 10 (October 12, 2021): 992. http://dx.doi.org/10.3390/agriculture11100992.

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Respiration and microbial infection are important causes of postharvest spoilage of fruits and vegetables (F&V). Atmosphere storage technology can significantly reduce postharvest losses. This comprehensive review aims to cover recent progress in the application of atmosphere storage to F&V preservation, not only focusing on the effect of gas conditions but also evaluating combination applications involving newer preservation technologies, including ethylene scavengers, high-pressure and decompression technology, ozone, ultraviolet radiation, active packaging, high-voltage electrostati

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Lucas, José A., Ana García-Villaraco, Beatriz Ramos-Solano, Khalid Akdi, and Francisco Javier Gutierrez-Mañero. "Lipo-Chitooligosaccharides (LCOs) as Elicitors of the Enzymatic Activities Related to ROS Scavenging to Alleviate Oxidative Stress Generated in Tomato Plants under Stress by UV-B Radiation." Plants 11, no. 9 (May 5, 2022): 1246. http://dx.doi.org/10.3390/plants11091246.

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Exposure to ultraviolet-B (UV-B) radiation can lead to oxidative damage in plants, increasing reactive oxygen species (ROS) production. To overcome ROS burst, plants have antioxidant mechanisms related to ROS scavenging which can be improved by elicitation with biological agents or derived molecules (elicitors), as they can trigger a physiological alert state called “priming”. This work describes the effects of lipo-chitooligosaccharides (LCOs) treatment applied to tomato plants under UV-B stress. The LCOs used in the study are produced by three species of the genus Ensifer (formerly Sinorhizo

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Katsoulas, Nikolaos, Anastasia Bari, and Chryssoula Papaioannou. "Plant Responses to UV Blocking Greenhouse Covering Materials: A Review." Agronomy 10, no. 7 (July 15, 2020): 1021. http://dx.doi.org/10.3390/agronomy10071021.

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Pure polyethylene (PE) is enriched with several additives to make it a smart application material in protected cultivation, as a cover material for either greenhouses or screenhouses. When this material completely or partially absorbs ultraviolet (UV) solar radiation, then it is called UV blocking material. The current work presents a review on the effects of the UV blocking covering materials on crop growth and development. Despite the passage of several years and the evolution of the design technology of plastic greenhouse covers, UV blocking materials have not ceased to be a rather interest

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Silva, Isabel, Marta Alves, Catarina Malheiro, Ana Rita R. Silva, Susana Loureiro, Isabel Henriques, and M. Nazaret González-Alcaraz. "Short-Term Responses of Soil Microbial Communities to Changes in Air Temperature, Soil Moisture and UV Radiation." Genes 13, no. 5 (May 10, 2022): 850. http://dx.doi.org/10.3390/genes13050850.

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We analyzed the effects on a soil microbial community of short-term alterations in air temperature, soil moisture and ultraviolet radiation and assessed the role of invertebrates (species Enchytraeus crypticus) in modulating the community’s response to these factors. The reference soil, Lufa 2.2, was incubated for 48 h, with and without invertebrates, under the following conditions: standard (20 °C + 50% water holding capacity (WHC)); increased air temperature (15–25 °C or 20–30 °C + 50% WHC); flood (20 °C + 75% WHC); drought (20 °C + 25% WHC); and ultraviolet radiation (UV) (20 °C + 50% WHC +

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Kyyak, N. Ya, O. V. Lobachevska, and Ya D. Khorkavtsiv. "Morpho-physiological reactions of gravisensitivity and adaptation to UV-radiation of the moss Bryum Caespiticiumhedw. from Antarctica." Kosmìčna nauka ì tehnologìâ 27, no. 5 (2021): 47–59. http://dx.doi.org/10.15407/knit2021.05.047.

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The adaptive physiological reactions of the moss Bryum caespiticium Hedw. from Antarctica to the influence of UV radiation and gravimorphoses as a factor of adaptive plasticity, associated with environmental conditions, were studied. As a control, B. caespiticium plants were collected in the Nature Reserve “Roztochchia” (Lviv region). In investigations, we used a sterile laboratory culture of mosses grown under controlled conditions in a phytotron. Moss shoots were irradiated with UV rays generated by an ultraviolet lamp OSRAM with an intensity of 4 kW/m2, which caused 50 % inhibition of plant

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Retana-Cordero, Marlon, Samson Humphrey, and Celina Gómez. "Effect of Radiation Quality and Relative Humidity on Intumescence Injury and Growth of Tomato Seedlings." HortScience 57, no. 10 (October 2022): 1257–66. http://dx.doi.org/10.21273/hortsci16712-22.

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Intumescence is a physiological disorder that affects some tomato (Solanum lycopersicum) cultivars grown in environments lacking ultraviolet radiation. Both far-red (FR) radiation and blue light have been shown to help mitigate this disorder. Thus, the objectives of this study were to characterize and compare intumescence injury and growth of various tomato cultivars propagated under different radiation qualities (Expt. 1) and to evaluate plant responses to the interactive effect of radiation quality and relative humidity (RH) (Expt. 2). Seedlings of six cultivars in Expt. 1 were grown under b

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Mishra, Anu, Himansu Shekhar Mohapatra, and B. S. Butola. "Imparting Protection against UV Radiations Using <i>In Situ</i> Coating of Titanium Dioxide on Textiles." International Letters of Chemistry, Physics and Astronomy 82 (March 12, 2019): 14–20. http://dx.doi.org/10.56431/p-26i977.

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Protection against ultraviolet radiation is one of the areas, in which considerable attention is being paid. Application of a wash durable finish on cotton fabric to protect the wearer from these radiations remains a challenge. The harmful effects of UV radiations result in the form of eye disorders, accelerated ageing of skin, DNA damage and cause of cancer. The current study focuses upon the use of TiO2 on cotton fabric to impart UV protection. TiO2 is deposited on cotton fabric using its pre-cursor. Sol-gel method has been used to convert pre-cursor into titanium oxide directly on fabric su

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Ren, Lingxiao, Jing Huang, Huagang Zhu, Wei Jiang, Haoyu Wu, Yuyang Pan, Yinghui Mao, Minghan Luo, and Taeseop Jeong. "Effects of Algal Utilization of Dissolved Organic Phosphorus by Microcystis Aeruginosa on Its Adaptation Capability to Ambient Ultraviolet Radiation." Journal of Marine Science and Engineering 10, no. 9 (September 6, 2022): 1257. http://dx.doi.org/10.3390/jmse10091257.

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Phosphorus (P) plays an important role in eutrophication and algal adaptation to environmental stresses; therefore, a better understanding of the impact of P is essential to control cyanobacterial bloom. In this study, Microcystis aeruginosa is treated with 5 h of ambient irradiation in the culture medium with different availabilities of dissolved organic P (DOP) and dissolved organic matter (DOM) to explore algal physiological responses. Compared to photosynthetically active radiation (PAR), ambient UV-A and UV-B radiation exerted oxidative stresses and has inhibitive effects on the growth an

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Francini and Sebastiani. "Abiotic Stress Effects on Performance of Horticultural Crops." Horticulturae 5, no. 4 (September 26, 2019): 67. http://dx.doi.org/10.3390/horticulturae5040067.

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The yield and quality of horticultural crops mainly depend on genotype, environmental conditions, and cultivation management. Abiotic stresses, such as adverse environmental conditions, can strongly reduce crop performance, with crop yield losses ranging from 50% to 70%. The most common abiotic stresses are represented by cold, heat, drought, flooding, salinity, nutrient deficiency, and high and low light intensities, including ultraviolet radiation. These abiotic stresses affect multiple physiological and biochemical processes in plants. The ability of plants to face these stresses depends on

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LAI, Yong-Zhong, and Kun-Shan GAO. "EFFECTS OF SOLAR ULTRAVIOLET RADIATION ON PHYSIOLOGICAL CHARACTERISTICS OF THE AQUATIC-LIVING COLONIES OF NOSTOC FLAGELLIFORME CULTURED INDOOR." Acta Hydrobiologica Sinica 33, no. 3 (June 10, 2009): 435–41. http://dx.doi.org/10.3724/sp.j.1035.2009.00435.

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MANEK, ADITYA K., MAUD C. O. FERRARI, JEFF M. SEREDA, SOM NIYOGI, and DOUGLAS P. CHIVERS. "The effects of ultraviolet radiation on a freshwater prey fish: physiological stress response, club cell investment, and alarm cue production." Biological Journal of the Linnean Society 105, no. 4 (February 24, 2012): 832–41. http://dx.doi.org/10.1111/j.1095-8312.2011.01829.x.

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Qaderi, Mirwais M., Navjeet K. Basraon, C. C. Chinnappa, and David M. Reid. "Combined Effects of Temperature, Ultraviolet‐B Radiation, and Watering Regime on Growth and Physiological Processes in Canola (Brassica napus) Seedlings." International Journal of Plant Sciences 171, no. 5 (June 2010): 466–81. http://dx.doi.org/10.1086/652389.

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Ramamoorthy, Purushothaman, Raju Bheemanahalli, Stephen L. Meyers, Mark W. Shankle, and Kambham Raja Reddy. "Drought, Low Nitrogen Stress, and Ultraviolet-B Radiation Effects on Growth, Development, and Physiology of Sweetpotato Cultivars during Early Season." Genes 13, no. 1 (January 16, 2022): 156. http://dx.doi.org/10.3390/genes13010156.

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Drought, ultraviolet-B (UV-B), and nitrogen stress are significant constraints for sweetpotato productivity. Their impact on plant growth and development can be acute, resulting in low productivity. Identifying phenotypes that govern stress tolerance in sweetpotatoes is highly desirable to develop elite cultivars with better yield. Ten sweetpotato cultivars were grown under nonstress (100% replacement of evapotranspiration (ET)), drought-stress (50% replacement of ET), UV-B (10 kJ), and low-nitrogen (20% LN) conditions. Various shoot and root morphological, physiological, and gas-exchange trai

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Ortega-Hernández, Nair, Welti-Chanes, Cisneros-Zevallos, and Jacobo-Velázquez. "Wounding and UVB Light Synergistically Induce the Biosynthesis of Phenolic Compounds and Ascorbic Acid in Red Prickly Pears (Opuntia ficus-indica cv. Rojo Vigor)." International Journal of Molecular Sciences 20, no. 21 (October 25, 2019): 5327. http://dx.doi.org/10.3390/ijms20215327.

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The present study evaluated the effects of ultraviolet B (UVB) radiation and wounding stress, applied alone or combined, on the biosynthesis of phenolic compounds and ascorbic acid in the peel and pulp of red prickly pear (Opuntia ficus-indica cv. Rojo Vigor). Whole and wounded-fruit samples were treated with UVB radiation (6.4 W·m−2) for 0 and 15 min, and stored for 24 h at 16 °C. Phytochemical analyses were performed separately in the peel and pulp. The highest phenolic accumulation occurred after storage of the whole tissue treated with UVB, where the main phenolic compounds accumulated in

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Khotimah, Husnul, Dina Dewi Lestari Ismail, Dhelya Widasmara, Wibi Riawan, Ekowati Retnaningtyas, Raditya Weka Nugraheni, Oktavia Eka Puspita, Oktavia Rahayu Adianingsih, Mardiyah Mardiyah, and Andri Setiawan. "Ameliorative effect of gel combination of Centella asiatica extract transfersomes and rosemary essential oil nanoemulsion against UVB-induced skin aging in Balb/c mice." F1000Research 11 (March 8, 2022): 288. http://dx.doi.org/10.12688/f1000research.109318.1.

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Background: Ultraviolet B (UVB) radiation induces physiological and morphological photoaging of the skin resulting in wrinkles, and loss of elasticity. This study analyzed nanoencapsulation of a gel combination of Centella asiatica (CA) transfersomes and rosemary essential oil (REO) nanoemulsion with lipid-based nanocarriers for the ability of both biological compounds to synergistically prevent UVB radiation, along with ameliorative and anti-aging effects. Methods: To ensure the quality, lipid-based nanocarriers of transfersomes and nanoemulsion were characterized based on physicochemical pro

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Li, Zheng-Ke, Guo-Zheng Dai, Philippe Juneau, and Bao-Sheng Qiu. "Different physiological responses of cyanobacteria to ultraviolet-B radiation under iron-replete and iron-deficient conditions: Implications for underestimating the negative effects of UV-B radiation." Journal of Phycology 53, no. 2 (March 7, 2017): 425–36. http://dx.doi.org/10.1111/jpy.12517.

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SCHOEDL, K., R. SCHUHMACHER, and A. FORNECK. "Correlating physiological parameters with biomarkers for UV-B stress indicators in leaves of grapevine cultivars Pinot noir and Riesling." Journal of Agricultural Science 151, no. 2 (July 24, 2012): 189–200. http://dx.doi.org/10.1017/s0021859612000536.

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SummaryThe robustness of seven physiological parameters together with two potential biomarkers for ultraviolet (UV)-B stress assessment was tested in greenhouse assays on the Vitis vinifera L. cultivars Pinot noir and Riesling. Effects of year, UV-B treatment, cultivar and clone were studied in four individual experiments. Grapevine plants were exposed to three dosed UV-B stress treatments (−UV-B: no UV-B radiation; +UV-B: daily dose of 4856·3 J/m2 UV-BBE; ++UV-B: daily dose of 7025·3 J/m2 UV-BBE) to detect changes of chlorophyll fluorescence and gas exchange parameters. Significant correlatio

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Feitosa, Valéria de Albuquerque Sousa, Elvira Marques Luz Dias, and Drauzio Eduardo Naretto Rangel. "Zinc-elicited stress tolerance in fungi." Research, Society and Development 12, no. 2 (January 26, 2023): e12012240044. http://dx.doi.org/10.33448/rsd-v12i2.40044.

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Fungi for industrial and agricultural uses must endure a variety of physical and chemical challenges, collectively referred to as stresses. The fungal response to stress conditions may be due to impaired growth and metabolism. Understanding the physiology of stress responses can help alleviate the detrimental effects when the fungus is applied agricultural and industrial uses. The present study aims to review the physiological and morphological effects of zinc ions on fungi. Zinc is essential for the activity of zinc metalloenzymes, such as alcohol dehydrogenase and aldehyde dehydrogenase. It

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Schmidt, Éder C., Marianne Kreusch, Marthiellen R. de L. Felix, Debora T. Pereira, Giulia B. Costa, Carmen Simioni, Luciane C. Ouriques, et al. "Effects of Ultraviolet Radiation (UVA+UVB) and Copper on the Morphology, Ultrastructural Organization and Physiological Responses of the Red AlgaPterocladiella capillacea." Photochemistry and Photobiology 91, no. 2 (January 8, 2015): 359–70. http://dx.doi.org/10.1111/php.12396.

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