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Articles de revues sur le sujet « Tradescantia #4430 »

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Auteur : Grafiati
Publié le 11 mars 2023

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1

Čėsnienė, Tatjana, Violeta Kleizaitė, Vytautas Rančelis, Donatas Žvingila, Kęstutis Švabauskas et Ričardas Taraškevičius. « Use of Tradescantia clone 4430 for direct long-term soil mutagenicity studies ». Mutation Research/Genetic Toxicology and Environmental Mutagenesis 768 (juillet 2014) : 23–32. http://dx.doi.org/10.1016/j.mrgentox.2013.12.010.

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Kudirka, Dalia T., et Peter L. Webster. « Temporal differences in cellular activity between tissues of the petal of Tradescantia clone 4430 ». Canadian Journal of Botany 68, no 5 (1 mai 1990) : 1075–79. http://dx.doi.org/10.1139/b90-134.

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Cellular behavior was analysed in different tissues of petals of Tradescantia clone 4430 during lamina development. Previous work demonstrated that a period of relatively high mitotic activity is followed by a brief period of arrest in the G1 stage of the cell cycle before a shift of cells from G1 and G2 in the mature petal. In this study, the same sequence of events was seen to occur in both provascular–vascular tissue and epidermis and mesophyll. However, analysis of mitotic frequencies, shown to reflect mitotic rates in whole petals, indicated that mitotic activity peaks later and (or) lasts longer in the provascular–vascular tissue than in the epidermis and mesophyll. Similarly, there is a corresponding delay in the subsequent shift of the cells of the provascular–vascular tissue from G1, to G2, with the result that at anthesis only about 40% of the cells of the provascular tissue have reached G2 DNA values compared with 100% of the rest of the cells of the petal.
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Suyama, F., E. T. Guimarães, D. J. A. Lobo, G. S. Rodrigues, M. Domingos, E. S. Alves, H. A. Carvalho et P. H. N. Saldiva. « Pollen mother cells of Tradescantia clone 4430 and Tradescantia pallida var. purpurea are equally sensitive to the clastogenic effects of X-rays ». Brazilian Journal of Medical and Biological Research 35, no 1 (janvier 2002) : 127–29. http://dx.doi.org/10.1590/s0100-879x2002000100018.

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Subburaj, Saminathan, Hye-Jeong Ha, Yong-Tae Jin, Yongsam Jeon, Luhua Tu, Jin-Baek Kim, Si-Yong Kang et Geung-Joo Lee. « Identification of γ-radiation-responsive microRNAs and their target genes in Tradescantia (BNL clone 4430) ». Journal of Plant Biology 60, no 2 (avril 2017) : 116–28. http://dx.doi.org/10.1007/s12374-016-0433-5.

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5

Patussi, Carina, et Márcia Bündchen. « Avaliação in situ da genotoxicidade de triazinas utilizando o bioensaio Trad-SHM de Tradescantia clone 4430 ». Ciência & ; Saúde Coletiva 18, no 4 (avril 2013) : 1173–78. http://dx.doi.org/10.1590/s1413-81232013000400030.

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O bioensaio da mutação do pelo estaminal de Tradescantia clone 4430 (Trad-SHM) foi utilizado para avaliar a genotoxicidade de um herbicida composto por triazinas (atrazina e simazina) após exposição in situ. Trinta vasos da planta foram expostos durante a aplicação do herbicida (grupo teste) mantendo-se um grupo controle em casa de vegetação. A genotoxicidade foi expressa em termos de eventos mutantes pink (EMP) e a análise dos dados foi realizada por meio do teste t de Student em oito dias de avaliação (C8D = controle 8 dias; T8D = teste 8 dias) e no dia de pico (CPD = controle dia de pico; TPD = teste dia de pico). A exposição ao herbicida causou um número significativamente maior de EMP no grupo teste (T8D = 2,27; TPD = 4,69) do que no controle (C8D = 0,71; CPD = 0,62), demonstrando a existência de risco genotóxico associado ao uso das triazinas, sendo o bioensaio Trad-SHM uma eficiente ferramenta para avaliar o potencial genotóxico destes contaminantes ambientais causadores de efeitos adversos à saúde humana.
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Mielli, A. C., P. H. N. Saldiva et G. A. Umbuzeiro. « Comparação entre as Respostas do Clone 4430 e Tradescantia pallida no Teste de Micronúcleos (Trad-MN) ». Journal of the Brazilian Society of Ecotoxicology 4, no 1-3 (2009) : 49–54. http://dx.doi.org/10.5132/jbse.2009.01.007.

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XIAO, Ling Zhi, et Sadao ICHIKAWA. « Mutagenic interactions between maleic hydrazide and X rays in the stamen hairs of Tradescantia clone BNL 4430 ». Genes & ; Genetic Systems 70, no 4 (1995) : 473–85. http://dx.doi.org/10.1266/ggs.70.473.

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XIAO, Ling Zhi, et Sadao ICHIKAWA. « Mutagenic interactions between maleic hydrazide and X rays in the stamen hairs of Tradescantia clone BNL 4430. » Japanese Journal of Genetics 70, no 4 (1995) : 473–85. http://dx.doi.org/10.1266/jjg.70.473.

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9

Rodrigues, Leatrice Talita, Nilton Cesar Pires Bione, Paulo Costa de Oliveira Filho, Viviane Fernandes de Souza et Artur Lourival da Fonseca Machado. « INFLUÊNCIA SAZONAL DA QUALIDADE DO AR NA ÁREA URBANA DE IRATI-PR : BIOENSAIOS DE GENOTOXICIDADE AMBIENTAL COM TRADESCANTIA CLONE 4430 / SEASONAL INFLUENCE OF AIR QUALITY IN THE URBAN AREA OF IRATI-PR : ENVIRONMENTAL GENOTOXICITY BIOASSAYS WITH TRADESCANTIA CLONE 4430 ». Brazilian Journal of Development 6, no 10 (2020) : 74297–315. http://dx.doi.org/10.34117/bjdv6n10-017.

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10

Xiao, Ling Zhi, et Sadao Ichikawa. « Mutagenic synergism detected between 1,2-dibromoethane and X rays in the stamen hairs of Tradescantia clone BNL 4430. » Genes & ; Genetic Systems 73, no 3 (1998) : 143–47. http://dx.doi.org/10.1266/ggs.73.143.

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11

Anderson, Van Allen, Michael J. Plewa et James M. Gentile. « The plant activation of m-phenylenediamine by Tradescantia clone 03 and clone 4430 cells in liquid suspension culture ». Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis 197, no 2 (février 1988) : 303–12. http://dx.doi.org/10.1016/0027-5107(88)90100-5.

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12

Techio, V. H., J. Stolberg, A. Kunz, E. Zanin et C. C. Perdomo. « Genotoxicity of swine effluents ». Water Science and Technology 63, no 5 (1 mars 2011) : 970–76. http://dx.doi.org/10.2166/wst.2011.278.

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This study aimed at the investigation of genotoxic effects of swine effluents from different stages of a treatment system for swine wastes through bioassay of stamen hairs and micronuclei in Tradescantia (clone BNL 4430). No significant differences (p≥0.05) regarding the genic mutations were found in the bioassay of stamen hairs, independently of the effluent analysed. For the genotoxicity test with micronuclei, the plants exposed to raw wastes, to sludge, and to effluent of the biodigester have presented higher rates of chromosomal damages (micronuclei), with significant differences in relation to the control group and other effluent of the waste treatment system (p≤0.05). The association between the chemical parameters and the genotoxicity data have shown that the variables COD and TKN have presented significant correlation (p≤0.05) with the number of mutagenic events in the tetrads.
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13

Ferreira, Maria Izildinha, Geraldo Stachetti Rodrigues, Marisa Domingos et Paulo Hilário do N. Saldiva. « In situ monitoring of mutagenicity of air pollutants in São Paulo City using Tradescantia-SHM bioassay ». Brazilian Archives of Biology and Technology 46, no 2 (mars 2003) : 253–58. http://dx.doi.org/10.1590/s1516-89132003000200017.

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The Tradescantia stamen hair mutation assay (Trad-SHM) was employed for assessing the environmental mutagenesis in two areas of São Paulo City. The study sites were defined as follows: 1) Celso Garcia Avenue, an industrial area on the outskirts of the urban center (Belém neighborhood), with an average daily traffic volume of 8,750 vehicles; 2) Doutor Arnaldo Avenue, in downtown area (Pinheiros neighborhood), with a mostly residential and business offices occupation, with an average daily traffic volume of 46,125 vehicles. The negative control (background) site is located in the city of Jaguariúna, 138 km from São Paulo, in an area of low atmospheric pollution. The mutation frequency observed for Belém was similar to the background for clone 4430, whereas plants exposed in Pinheiros showed significant increases in mutation rate. Positive correlation was observed between mutation frequency and the levels of particulate matter in the atmosphere. This indicated a relationship between mutation frequency and the amount of atmospheric pollution present at the exposure sites in São Paulo City, with special reference to vehicular emissions.
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14

Ha, Hye-Jeong, Saminathan Subburaj, Young-Sun Kim, Jin-Baek Kim, Si-Yong Kang et Geung-Joo Lee. « Molecular Characterization and Identification of Calnexin 1 As a Radiation Biomarker from Tradescantia BNL4430 ». Plants 9, no 3 (20 mars 2020) : 387. http://dx.doi.org/10.3390/plants9030387.

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Calnexin (CNX) is an integral membrane protein that functions as a chaperone in the endoplasmic reticulum for the correct folding of proteins under stress conditions, rendering organisms tolerant under adverse conditions. Studies have investigated the cytogenetic effects of gamma irradiation (Ɣ-IR) on plants, but information on the molecular response under Ɣ-IR remains limited. Previously, we constructed a cDNA library of an irradiation-sensitive bioindicator plant, Tradescantia BNL4430 (T-4430) under Ɣ-IR, in which the Calnexin-1 gene was highly upregulated at 50 mGy treatment. TrCNX1 encodes a 61.4 kDa protein with conserved signature motifs similar to already reported CNX1s. TrCNX1 expression was evaluated by semiquantitative reverse transcriptase PCR and quantitative real-time PCR and was ubiquitously expressed in various tissues and highly upregulated in flower petals under 50 mGy Ɣ-IR stress. The protective function of TrCNX1 was investigated by overexpression of TrCNX1 in an Escherichia coli BL21(DE3) heterologous system. Using plate assay, we showed that TrCNX1 increased the viability of E. coli transformants under both UV-B and Ɣ-IR compared with the control, demonstrating that TrCNX1 functions under irradiation stress. TrCNX1 may enhance irradiation stress tolerance in crops and act as a radio marker gene to monitor the effects of radiation.
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15

Xiao, Ling Zhi, et Sadao Ichikawa. « Antagonistic effects of ethyl methanesulfonate and maleic hydrazide in inducing somatic mutations in the stamen hairs of Tradescantia clone BNL 4430. » Genes & ; Genetic Systems 73, no 5 (1998) : 287–92. http://dx.doi.org/10.1266/ggs.73.287.

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Xiao, Ling Zhi, et Sadao Ichikawa. « Peroxidase activities in the floral tissues of Tradescantia clone BNL 4430 treated with maleic hydrazide alone, X rays alone, or in combinations. » Genes & ; Genetic Systems 71, no 3 (1996) : 151–57. http://dx.doi.org/10.1266/ggs.71.151.

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Xiao, Ling Zhi, et Sadao Ichikawa. « Mutagenic interactions between X-rays and two promutagens, o-phenylenediamine and N-nitrosodimethylamine, in the stamen hairs of Tradescantia clone BNL 4430 ». Mutation Research/Genetic Toxicology and Environmental Mutagenesis 413, no 2 (mars 1998) : 177–86. http://dx.doi.org/10.1016/s1383-5718(98)00030-8.

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18

Gichner, Tomáš, G. Cabrera Lopez, Elizabeth D. Wagner et Michael J. Plewa. « Induction of somatic mutations in Tradescantia clone 4430 by three phenylenediamine isomers and the antimutagenic mechanisms of diethylditiocarbamate and ammonium meta-vanadate ». Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis 306, no 2 (avril 1994) : 165–72. http://dx.doi.org/10.1016/0027-5107(94)90027-2.

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19

KLUMPP, ANDREAS, WOLFGANG ANSEL, ANETTE FOMIN, SANDRA SCHNIRRING et CHRISTINA PICKL. « Influence of climatic conditions on the mutations in pollen mother cells of Tradescantia clone 4430 and implications for the Trad-MCN bioassay protocol ». Hereditas 141, no 2 (17 novembre 2004) : 142–48. http://dx.doi.org/10.1111/j.1601-5223.2004.01806.x.

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Xiao, Ling Zhi, et Sadao Ichikawa. « Dicentric chromosome bridges in root tips and micronuclei in pollen tetrads induced by X rays and maleic hydrazide in Tradescantia clone BNL 4430. » Genes & ; Genetic Systems 72, no 4 (1997) : 187–95. http://dx.doi.org/10.1266/ggs.72.187.

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Ichikawa, Sadao, et Sherengul Wushur. « Further yearly analyses of spontaneous pink mutant events in the stamen hairs of Tradescantia clone BNL 4430 cultivated in the NSC growth chamber. » Genes & ; Genetic Systems 76, no 3 (2001) : 199–207. http://dx.doi.org/10.1266/ggs.76.199.

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Ichikawa, Sadao, et Sherengul Wushur. « Analyses of spontaneous pink mutant events in the stamen hairs of Tradescantia clone BNL 4430 cultivated in a nutrient solution circulating growth chamber ». Mutation Research/Genetic Toxicology and Environmental Mutagenesis 472, no 1-2 (décembre 2000) : 37–49. http://dx.doi.org/10.1016/s1383-5718(00)00102-9.

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Shima, Naoko, et Sadao Ichikawa. « Synergisms detected among methyl methanesulfonate, ethyl methanesulfonate and X-rays in inducing somatic mutations in the stamen hairs of Tradescantia clone BNL 4430 ». Environmental and Experimental Botany 34, no 4 (octobre 1994) : 393–408. http://dx.doi.org/10.1016/0098-8472(94)90022-1.

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ICHIKAWA, Sadao, Akihiko YAMAGUCHI et Mikiko OKUMURA. « Synergistic effects of methyl methanesulfonate and X rays in inducing somatic mutations in the stamen hairs of Tradescantia clones, KU 27 and BNL 4430 ». Genes & ; Genetic Systems 68, no 4 (1993) : 277–92. http://dx.doi.org/10.1266/ggs.68.277.

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ICHIKAWA, Sadao, Akihiko YAMAGUCHI et Mikiko OKUMURA. « Synergistic effects of methyl methanesulfonate and X rays in inducing somatic mutations in the stamen hairs of Tradescantia clones, KU 27 and BNL 4430. » Japanese Journal of Genetics 68, no 4 (1993) : 277–92. http://dx.doi.org/10.1266/jjg.68.277.

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Shima, Naoko, Ling Zhi Xiao, Fumihito Sakuramoto et Sadao Ichikawa. « Young inflorescence-bearing shoots with roots of Tradescantia clone BNL 4430 cultivated in nutrient solution circulating systems : an alternative to potted plants and cuttings for mutagenicity tests ». Mutation Research/Genetic Toxicology and Environmental Mutagenesis 395, no 2-3 (décembre 1997) : 199–208. http://dx.doi.org/10.1016/s1383-5718(97)00169-1.

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Shima, Naoko, et Sadao Ichikawa. « Synergistic effects of N-ethyl-N-nitrosourea (an alkylating agent with a low Swain-Scott substrate constant) and X-rays in the stamen hairs of tradescantia clone BNL 4430 ». Environmental and Molecular Mutagenesis 29, no 3 (1997) : 323–29. http://dx.doi.org/10.1002/(sici)1098-2280(1997)29:3<323 ::aid-em13>3.0.co;2-g.

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Shima, Naoko, et Sadao Ichikawa. « Mutagenic synergism detected between dimethyl sulfate and X-rays but not found between N-methyl-N-nitrosourea and X-rays in the stamen hairs of Tradescantia clone BNL 4430 ». Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis 331, no 1 (septembre 1995) : 79–87. http://dx.doi.org/10.1016/0027-5107(95)00054-m.

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ALVES, EDENISE SEGALA, PAULA MATTOS GIUSTI, MARISA DOMINGOS, PAULO H. N. SALDIVA, ELIANE T. GUIMARÃES et DÉBORA J. A. LOBO. « Estudo anatômico foliar do clone híbrido 4430 de Tradescantia : alterações decorrentes da poluição aérea urbana ». Revista Brasileira de Botânica 24, no 4 (décembre 2001). http://dx.doi.org/10.1590/s0100-84042001000500012.

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