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Relevant bibliographies by topics / Plant bioassay

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Academic literature on the topic 'Plant bioassay'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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Journal articles on the topic "Plant bioassay"

1

McKenzie, C. L., and B. Cartwright. "Susceptibility of Aphis gossypii (Glover) to Insecticides as Affected by Host Plant Using a Rapid Bioassay." Journal of Entomological Science 29, no. 3 (1994): 289–301. http://dx.doi.org/10.18474/0749-8004-29.3.289.

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The susceptibility of Aphis gossypii (Glover) reared on watermelon or cotton to seven insecticides was determined using a Petri dish bioassay. Baseline susceptibility values to each insecticide for susceptible laboratory A. gossypii colonies varied between host plants, but aphids reared on cotton were generally more tolerant to insecticides than aphids from watermelon. The ratio of relative susceptibility of cotton aphids to melon aphids was as much as 1000 with dimethoate or 415 with bifenthrin, however, no significant differences in susceptibility was observed with chlorpyrifos between aphid

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Araújo, Ademir Sérgio Ferreira, and Regina Teresa Rosim Monteiro. "Plant bioassays to assess toxicity of textile sludge compost." Scientia Agricola 62, no. 3 (2005): 286–90. http://dx.doi.org/10.1590/s0103-90162005000300013.

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Composting of industrial wastes is increasing because of recycling requirements set on organic wastes. The evaluation of toxicity of these wastes by biological testing is therefore extremely important for screening the suitability of waste for land application. The toxicity of a textile sludge compost was investigated using seed germination and plant growth bioassays using soybean and wheat. Compost samples were mixed with water (seed germination bioassay) or nutrient solution (plant growth bioassay) at concentrations of 0, 19, 38, 76 and 152 g L-1. No negative effects were observed after five

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Ortega, Marta, José L. Alonso-Prados, Mercedes Villarroya, and José M. García-Baudín. "Detection of Phytotoxic Soil Residues of Hexazinone and Simazine by a Biological Test Using Lepidium sativum L. var. Cresson." Weed Technology 18, no. 3 (2004): 505–8. http://dx.doi.org/10.1614/wt-03-055.

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Current plant bioassays included in the guidelines for testing pesticides do not include the measurement of reproduction endpoints. A bioassay, based on reduction of flowering of cress was developed to detect soil residues of hexazinone and simazine at levels of 0.02 and 0.10 ppm, respectively. The endpoint used in the described bioassay is the percentage of plant viability that implies that the tested plants have reached the flowering stage. It was found that sensitivity of cress is lower in soils containing higher organic matter.

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Kemppainen, R., H. Avikainen, M. Herranen, O. Reinikainen, and R. Tahvonen. "PLANT BIOASSAY FOR SUBSTRATES." Acta Horticulturae, no. 644 (February 2004): 211–15. http://dx.doi.org/10.17660/actahortic.2004.644.28.

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Heap, I. M. "Identification and documentation of herbicide resistance." Comptes rendus 75, no. 4 (2005): 85–90. http://dx.doi.org/10.7202/706075ar.

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Proactive herbicide resistance management programs rely upon early detection of resistant populations and knowledge of which combinations of weed and herbicide are prone to the development of resistance. Annual weeds that are prolific seed producers, genetically diverse, and repeatedly exposed to a single herbicide mode of action, are prone to rapid development of resistance. When resistance is suspected, seed samples are collected and evaluated using a whole plant bioassay. Whole plant bioassays are conducted underfield, growth room, or Petri dish conditions. Complete dose response curves for

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Khalil, Yaseen, Kadambot H. M. Siddique, Phil Ward, et al. "A bioassay for prosulfocarb, pyroxasulfone and trifluralin detection and quantification in soil and crop residues." Crop and Pasture Science 69, no. 6 (2018): 606. http://dx.doi.org/10.1071/cp18026.

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Three experiments were conducted to develop a bioassay method for assessing the bioavailability of prosulfocarb, pyroxasulfone and trifluralin in both crop residue and soil. In preliminary experiments, Italian ryegrass (Lolium multiflorum Lam.), cucumber (Cucumis sativus L.) and beetroot (Beta vulgaris L.) were tested as bioassay plant species for the three pre-emergent herbicides. Four growth parameters (shoot length, root length, fresh weight and dry weight) were measured for all plant species. Shoot-length inhibition was identified as the most responsive to the herbicide application rates.

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Catalán-Barrera, Orlando, Alejandro Alarcón, Ronald Ferrera-Cerrato, Dulce Jazmín Hernández-Melchor, Arely Anayansi Vargas-Díaz, and Ofelia Ferrera-Rodriguez. "FOLIAR AND ROOT INOCULATION OF LETTUCE PLANTS WITH BACTERIA ISOLATED FROM MELIPONIDS IN COMBINATION WITH ARBUSCULAR MYCORRHIZAL FUNGI AND PHOSPHORUS APPLICATION." Chilean journal of agricultural & animal sciences 41, no. 1 (2025): 100–119. https://doi.org/10.29393/chjaas41-10froo60010.

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This research evaluated the plant growth-promoting effects of the inoculation of bacterial strains isolated from meliponids (stingless bees) in lettuce. Two bioassays were performed under greenhouse conditions. In the first bioassay, eleven bacterial strains previously isolated from meliponids were inoculated through leaves or roots of lettuce seedlings; greenness index (SPAD units), leaf area, and dry weight (aerial, root and total) were evaluated using a completely randomized design, and the two bacteria with the highest plant- promoting capacity were selected. In the second bioassay, the se

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Matthiessen, J. N., and M. A. Shackleton. "Advantageous attributes of larval whitefringed weevil, Naupactus leucoloma (Coleoptera: Curculionidae) for bioassaying soil fumigants, and responses to pure and plant-derived isothiocyanates." Bulletin of Entomological Research 90, no. 4 (2000): 349–55. http://dx.doi.org/10.1017/s000748530000047x.

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AbstractFirst instars of the soil-inhabiting whitefringed weevil, Naupactus leucoloma(Boheman), are a particularly good bioassay model for assessing volatile soil fumigants and biofumigants. Eggs are readily obtained and can be stored for long periods with larvae hatched on demand and the first instar is non-feeding, surviving without food or shelter. Longevity varies with temperature, but readily accommodates the period required to conduct bioassays without appreciable mortality of untreated controls. In vitro bioassays of pure methyl isothiocyanate, the active ingredient from metham sodium s

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Han, D. Y., D. L. Coplin, W. D. Bauer, and H. A. J. Hoitink. "A Rapid Bioassay for Screening Rhizosphere Microorganisms for Their Ability to Induce Systemic Resistance." Phytopathology® 90, no. 4 (2000): 327–32. http://dx.doi.org/10.1094/phyto.2000.90.4.327.

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We developed a rapid and miniaturized bioassay for screening large numbers of rhizosphere microorganisms for their ability to induce systemic resistance to bacterial leaf spot of radish caused by Xanthomonas campestris pv. armoraciae. In this bioassay, Pantoea agglomerans strain E278Ar controlled symptoms of disease as effectively as 2,6-dichloroisonicotinic acid when applied to the roots of seedlings produced in growth pouches in a soilless system. E278Ar essentially did not migrate from seedling roots to the foliage. This suggests that induction of systemic resistance could best explain the

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Aalders, L. T., R. Minchin, R. A. Hill, M. Braithwaite, N. L. Bell, and A. Stewart. "Development of a tomato/root knot nematode bioassay to screen beneficial microbes." New Zealand Plant Protection 62 (August 1, 2009): 28–33. http://dx.doi.org/10.30843/nzpp.2009.62.4802.

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In common with other root knot nematodes Meloidogyne hapla is a serious plant pest A rapid screening system for candidate microbes that benefit plant growth is a first step to developing screening bioassays in other plantnematode systems Cultures of M hapla established on tomatoes were used to define the nematode damage function and required bioassay duration for this plantpest system followed by scaleup to a glasshouse level The quantities of Meloidogyne inoculum were chosen such that they would cause minor moderate or severe plant damage; hence the degree of protection afforded by the microb

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Dissertations / Theses on the topic "Plant bioassay"

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Pisula, Nikki Leigh. "Does evolutionary exposure mediate allelopathic effects? /." View online, 2010. http://repository.eiu.edu/theses/docs/32211131524889.pdf.

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Hudson, Christine Cecilia. "Isolation of signal transduction inhibitors by bioassay-directed fractionation of plant extracts." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/30636.

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Castillo-Ruiz, Priscila. "Plant activation of different chemicals by tobacco and brassica cell cultures, using the plant cellmicrobe coincubation assay." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39239.

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In this study, the ability of various chemicals to be biotransformed into mutagens by plant cells was investigated. Two thiocarbamate herbicides, diallate and triallate, the sulfonylurea herbicide chlorsulfuron, and the aniline derivative m-phenylenediamine were tested for their ability to revert Salmonella typhimurium (strains TA100 and TA98) in the presence and absence of Nicotiana tabacum (TX1) cell cultures in liquid suspension. Chlorsulfuron and m-phenylenediamine were also tested in the presence and absence of Brassica napus cv. 'Topas' cells. Diallate was found to be activated by TX1 ce

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Adewusi, Emmanuel Adekanmi. "Evaluation of the effect of Pelargonium reniforme Curtis extract on alcohol induced liver damage in Nkonkobe Municipality Eastern Cape Province South Africa." Thesis, University of Fort Hare, 2009. http://hdl.handle.net/10353/263.

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Alcohol abuse is a very common practice (just like in many other parts of the world) in Nkonkobe Municipality, Eastern Cape Province, South Africa. This is associated with liver disease. An ethnobotanical survey of plants used for the treatment of alcohol-induced liver damage in Nkonkobe Municipality was conducted. During the survey and also from information gathered in the literature, Pelargonium reniforme Curtis, was prominently mentioned, among other plants, as the species used generally for the treatment of alcohol-induced liver damage. This project was designed to evaluate the effects of

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Voigt, Astrid. "Bioavailability of trace metals to plants." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19561.

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Soil quality guidelines are currently based on total trace metal loads. There is a need to define indices of bioavailability to allow reasonable predictions for plant metal uptake and toxicity in soils. Trace metal toxicities to plants often correlate best with free metal ion activities. The first objective was to develop a plant bioassay that is sensitive to trace metals at concentrations realistic for soils. The root elongation of lettuce Lactuca sativa 'Buttercrunch' was used as toxicological endpoint. This endpoint was sensitive and reproducible to environmentally relevant concentrations o

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Kotze, Danelle. "Production and pharmacological analysis of microcultures of Pelargonium sidoides DC and Pelargonium reniforme Curtis." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18115.

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Naman, Charles Benjamin. "Phytochemical Investigation of the Medicinal Plant Taxodium distichum and Library Screening of Thalictrum Alkaloids for New Antileishmanial Drug Leads." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429283826.

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Reed, Donna K. "Impact zone delineation for biological assessment of power plant effluent effects on snail populations in the Clinch River." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/38639.

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Blanco, Carcache Peter Josephin. "Chemical Characterization and Biological Evaluation of Secondary Metabolites Isolated from Glycosmis ovoidea." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1580383951030389.

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Conan, Cécile. "Metabolomics investigations of seaweed extracts used as plant growth biostimulants and transcriptomic studies of their physiological effects on A. thaliana." Electronic Thesis or Diss., Paris 6, 2016. http://www.theses.fr/2016PA066760.

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Développer une agriculture durable et respectueuse de l’environnement, implique l’utilisation de biostimulants tels que les extraits de macro-algues marines dans le but d’améliorer la croissance des plantes ainsi que leur tolérance aux stress biotiques et abiotiques. Ces extraits commerciaux d’algues sont utilisés en agriculture afin de favoriser la nutrition des plantes, d’améliorer leur qualité nutritionnelle et d’accroitre leur rendement. Dans ce domaine quelques modes d’action ont été élucidés par le centre R&D des Laboratoires Goëmar-Arysta. Cependant, jusqu’à présent, les matières ac

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Books on the topic "Plant bioassay"

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Rasoanaivo, Philippe. Biological evaluation of plants with reference to the Malagasy flora. Edited by Ratsimamanga-Urverg Suzanne and Scott Gillian. NAPRECA, 1993.

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Lars, Bohlin, and Bruhn J. G, eds. Bioassay methods in natural product research and drug development. Kluwer Academic, 1999.

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E, Norton Dale, Washington (State). Toxics Cleanup Program., and Washington (State). Dept. of Ecology. Environmental Investigations and Laboratory Services Program., eds. Early seedling growth protocol for soil toxicity screening. Environmental Investigations and Laboratory Services Program, 1996.

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Samecka-Cymerman, Aleksandra. Biogeochemiczna ekologia Scapania undulata (L.) Dum. w Sudetach. Wydawn. Uniwersytetu Wrocławskiego, 1994.

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Chapman, Duane C. Toxicity and bioavailability of metals in the Missouri River adjacent to a metal refinery. U.S. Dept. of the Interior, U.S. Geological Survey, Columbia Environmental Reseach Center, 2001.

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1958-, Chapman Duane C., and Columbia Environmental Research Center, eds. Toxicity and bioavailability of metals in the Missouri River adjacent to a metal refinery. U.S. Dept. of the Interior, U.S. Geological Survey, Columbia Environmental Research Center, 2001.

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Plant bioassays. Studium Press, 2009.

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Bioassays and other special techniques for plant hormones and plant growth regulators. Plant Growth Regulator Society of America, 1986.

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Bruhn, Jan G., and Lars Bohlin. Bioassay Methods in Natural Product Research and Drug Development. Springer, 2012.

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Mickley, Mike. Major Ion Toxicity in Membrane Concentrate. Amer Water Works Assn, 2000.

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Book chapters on the topic "Plant bioassay"

1

Browning, Isla A. "Bioassay for Diagnosis of Plant Viruses." In Plant Pathology. Humana Press, 2008. http://dx.doi.org/10.1007/978-1-59745-062-1_1.

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Elmqvist, T. "Plant Biodiversity." In Bioassay Methods in Natural Product Research and Drug Development. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4810-8_1.

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Pestemer, Wilfried, and Petra Günther. "Growth Inhibition of Plants as a Bioassay for Herbicide Analysis." In Chemistry of Plant Protection. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-03156-8_8.

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Pouvreau, Jean-Bernard, Lucie Poulin, Sarah Huet, and Philippe Delavault. "Strigolactone-Like Bioactivity via Parasitic Plant Germination Bioassay." In Methods in Molecular Biology. Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-1429-7_6.

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Belesky, D. P., J. M. Fedders, and R. J. Wright. "Short-term bioassay of Lotus corniculatus soil acidity tolerance." In Plant-Soil Interactions at Low pH. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3438-5_104.

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Senthilkumar, M., N. Amaresan, and A. Sankaranarayanan. "Estimation of Ethylene in Plant-Bioassay System: Gas Chromatography." In Springer Protocols Handbooks. Springer US, 2020. http://dx.doi.org/10.1007/978-1-0716-1080-0_21.

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Lockhart, W. Lyle, Brian N. Billeck, and Chris L. Baron. "Bioassays with a floating aquatic plant (Lemna minor) for effects of sprayed and dissolved glyphosate." In Environmental Bioassay Techniques and their Application. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1896-2_33.

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Mielke, Stefan, and Debora Gasperini. "Plant–Insect Bioassay for Testing Arabidopsis Resistance to the Generalist Herbivore Spodoptera littoralis." In Jasmonate in Plant Biology. Springer US, 2019. http://dx.doi.org/10.1007/978-1-0716-0142-6_5.

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Schnabel, Guido, Meng-jun Hu, and Dolores Fernández-Ortuño. "Monitoring Resistance by Bioassay: Relating Results to Field Use Using Culturing Methods." In Fungicide Resistance in Plant Pathogens. Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55642-8_17.

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Bauer, R. "Cyclooxygenase and 5-Lipoxygenase as Targets for Medicinal Plant Research." In Bioassay Methods in Natural Product Research and Drug Development. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4810-8_10.

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Conference papers on the topic "Plant bioassay"

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Lee, Harold H., Harriett J. Bennett, and Aklilu Lemma. "Towards Control of Zebra Mussels: the Use of Endod (Phytolacca Dodecandra), a Natural Molluscicide." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92314.

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Abstract Experiments using a static bioassay system as a base to develop a focal control method for Dreissena polymorpha illustrate the potential usefulness of the plant molluscicides, Lemmatoxins, in the African soapberries, Phytolacca dodecandra or Endod. Endod at a dose higher than 15 mg/L is lethal to adult and juvenile zebra mussels, while a lower dose prevents their migration, adhesion, and aggregation. The molluscicidal activity could be removed by powdered activated carbon. Since infestation of zebra mussels is a long-term problem and waterworks vary in design and in location, a concep

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Wang, Haibin, Jianghua Ye, Xiaoting Chen, et al. "Data Analysis of Bioassay of tea plant soil on endogenous hormone of tea seedlings." In 2019 IEEE International Conference on Computation, Communication and Engineering (ICCCE). IEEE, 2019. http://dx.doi.org/10.1109/iccce48422.2019.9010786.

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Verdi, Rovier, Leonardo Felipe Faedo, Francis Rayns, Claudia Scherr, Julia Wright, and Pedro Boff. "A Whole Plant-Based Bioassay with Rice Seedlings to Test Effects of Homeopathic Preparations." In HRI London 2023—Cutting Edge Research in Homeopathy: Presentation Abstracts. Georg Thieme Verlag KG, 2024. http://dx.doi.org/10.1055/s-0044-1779809.

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Kul, D., Ç. Karakoyun, S. Yılmaz, AF Pirhan, and E. Bedir. "Bioassay guided isolation of naphthoquinones from Onosma aksoyii, investigation of their cytotoxic properties." In 67th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA) in cooperation with the French Society of Pharmacognosy AFERP. © Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-3400003.

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Branković, Snežana, Filip Grbović, Radmila Glišić та ін. "NEUTRALIZATION OF SEWAGE SLUDGE POLLUTANTS USING β-DIKETONATE". У 54. godišnja konferencija o aktuelnim problemima korišćenja i zaštite voda. Srpsko društvo za zaštitu voda, 2025. https://doi.org/10.46793/voda25.343b.

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This study explores the application of an innovative approach for the neutralization of pollutants from sewage sludge, sampled at the Cvetojevac Wastewater Treatment Plant in Kragujevac. The sludge was treated with β-diketonate at different concentrations (50, 100, and 200 mg/mL), and a bioassay method was applied using red clover seeds (Trifolium pratense L.) as a model for germination. The results indicate that the addition of hummus and treatment with synthesized β-diketonate significantly reduced the inhibitory effects of the sludge. The synthesized β-diketonate shows potential for polluta

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"Disentangling the multiphasic nature of intracellular calcium responses induced by fungal signals in Lotus japonicus roots." In IS-MPMI Congress. IS-MPMI, 2023. http://dx.doi.org/10.1094/ismpmi-2023-10.

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The recognition of different microbe-associated molecular patterns triggers in the plant the activation of either an immune response or an accommodation program. In both types of responses, Ca2+ is a crucial intracellular messenger, mediating the early stages of the respective signalling pathways. In this work, we analyzed the cytosolic and nuclear Ca2+ changes activated by a set of chitin-related oligomers in different genetic backgrounds of Lotus japonicus roots by using specifically targeted aequorin-based Ca2+ reporters. By means of pharmacological and genetic approaches, we dissected the

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STAPULIONYTĖ, Asta, Skaistė BONDZINSKAITĖ, Monika STRAVINSKAITĖ, Raimondas ŠIUKŠTA, Ričardas TARAŠKEVIČIUS, and Tatjana ČĖSNIENĖ. "SOIL GENOTOXICITY BIOMONITORING IN RECULTIVATED FACTORY AREA USING THE CYTOGENETIC AND MOLECULAR ASSAYS IN TWO PLANT TEST-SYSTEMS." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.025.

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Soil pollution with industrial leftovers is of real danger to living organisms since harmful effects can arise after exposure to the contaminants in the soil. In our study, we applied a plant bioassay battery to monitor soil genotoxicity after short-term exposure to the soil. The soil was collected in 3 rounds: at the central part of the brownfield before (S-I) and after (S-III) topsoil removal, and at the brownfield periphery (S-II). The permissible value of the total contamination index is &amp;amp;lt;16 and the corresponding values were 780 in S-I, 69 in S-II and 133 in S-III soil showi

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Tretiacova, Tatiana, Vladimir Todiras, and Ana Gusan. "Eficacitatea produsului NEEM01 în combaterea păduchilor în livezi și spaţii protejate." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.49.

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Considering the growing demand for organic production of food and registration-related problems, the number of pest management products that can be used in this sort of production is limited. In this study the efforts have been made to formulate the Neem oil emulsions which would be used as agrochemicals. Bioassays were performed on aphids (Myzodes persicae Sulz., Aphis gossypii Glow , Aphis pomi Deg.) in order to compare the insecticidal activity of the neem oil new preparative form NEEM-01 with that of the commercial biorational product Pelecol EO. The bioassays conducted on the aphids demon

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Proto, Mariagrazia, and Ronan Courtney. "Use of Plant Bioassays for Assessing Mine Tailings Rehabilitation Strategies." In The 6th World Congress on Civil, Structural, and Environmental Engineering. Avestia Publishing, 2021. http://dx.doi.org/10.11159/iceptp21.lx.107.

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Stingaci, Aurelia, and Leonid Volosciuc. "Isolate locale ale baculovirului entomopatogenic ca o tehnologie de formulare inovatoare, care protejează biopesticidul din degradare a radiației ultraviolete." In VIIth International Scientific Conference “Genetics, Physiology and Plant Breeding”. Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2021. http://dx.doi.org/10.53040/gppb7.2021.91.

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This paper presents the conceptual conceptual vision a formulation technology for biopesticides in which the active ingredient (baculovirus) is an active coal. Importantly, this indgredient protects the sen-sitive viral DNA from degrading in sunlight, but dissolves in the alkaline insect gut to release the virus, which then infects and kills the pest. We show, using this ingredient, in both laboratory bioassays and field tests, that this can extend the efficacy of the biopesticide well beyond the few hours of existing virus formulations, potentially increasing the spray interval and reducing t

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Reports on the topic "Plant bioassay"

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Carbaugh, Eugene H. RECOMMENDATIONS FOR UO3 PLANT BIOASSAY. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/983733.

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Yankova-Tsvetkova, Elina, Milena Nikolova, Ina Aneva, Tatjana Stefanova, and Strahil Berkov. Germination Inhibition Bioassay of Extracts and Essential Oils from Plant Species. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2020. http://dx.doi.org/10.7546/crabs.2020.09.09.

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Harms, Nathan, Judy Shearer, James Cronin, and John Gaskin. Geographic and genetic variation in susceptibility of Butomus umbellatus to foliar fungal pathogens. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41662.

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Large-scale patterns of plant invasions may reflect regional heterogeneity in biotic and abiotic factors and genetic variation within and between invading populations. Having information on how effects of biotic resistance vary spatially can be especially important when implementing biological control because introduced agents may have different Impacts through interactions with host-plant genotype, local environment, or other novel enemies. We conducted a series of field surveys and laboratory studies to determine whether there was evidence of biotic resistance, as foliar fungal pathogens, in

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Kapulnik, Yoram, Maria J. Harrison, Hinanit Koltai, and Joseph Hershenhorn. Targeting of Strigolacatones Associated Pathways for Conferring Orobanche Resistant Traits in Tomato and Medicago. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7593399.bard.

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This proposal is focused on examination of two plant interactions: parasitic with Orobanche, and symbiosis with arbuscular mycorrhiza fungi (AMF), and the involvement of a newly define plant hormones, strigolactones (SLs), in these plant interactions. In addition to strigolactones role in regulation of above-ground plant architecture, they are also known to be secreted from roots, and to be a signal for seed germination of the parasitic plants Orobanche. Moreover, secreted strigolactones were recognized as inducers of AMFhyphae branching. The present work was aimed at Generation of RNAi mutant

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Kennedy, Alan, Natalie Smith, Alexander Linan, and Laszlo Kovacs. Bioassay to assess toxicity of water-dispersed engineered nanomaterials in plants; Scientific Operating Procedure Series : Toxicology (T). Engineer Research and Development Center (U.S.), 2019. http://dx.doi.org/10.21079/11681/33388.

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Cytryn, Eddie, Mark R. Liles, and Omer Frenkel. Mining multidrug-resistant desert soil bacteria for biocontrol activity and biologically-active compounds. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7598174.bard.

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Control of agro-associated pathogens is becoming increasingly difficult due to increased resistance and mounting restrictions on chemical pesticides and antibiotics. Likewise, in veterinary and human environments, there is increasing resistance of pathogens to currently available antibiotics requiring discovery of novel antibiotic compounds. These drawbacks necessitate discovery and application of microorganisms that can be used as biocontrol agents (BCAs) and the isolation of novel biologically-active compounds. This highly-synergistic one year project implemented an innovative pipeline aimed

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Shenker, Moshe, Paul R. Bloom, Abraham Shaviv, et al. Fate of Phosphorus Originated from Treated Wastewater and Biosolids in Soils: Speciation, Transport, and Accumulation. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7697103.bard.

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Beneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levelsBeneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levels that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solu

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