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Remodeling of the cell wall as a drought-tolerance mechanism of a soybean genotype revealed by global gene expression analysis

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aBIOTECH 2021年第1期2卷 14-31页

作者： flaviane silva coutinho Juliano Mendonça Rodrigues Lucas Leal Lima Rosilene Oliveira Mesquita Paola Avelar Carpinetti João Paulo Batista Machado Camilo Elber Vital Pedro Marcus Vidigal Maria Eduarda Soares Ramos Mariana Rocha Maximiano Angela Mehta Maria Goreti Almeida Oliveira Elizabeth Pacheco Batista Fontes Humberto Josuéde Oliveira Ramos Departamento de Bioquímica e Biologia Molecular Universidade Federal de ViçsaViçsaMinas GeraisBrazil Departamento de Fitotecnia Universidade Federal do CearáFortalezaCearáBrazil Núcleo de Análise de Biomoléculas(NuBioMol) Universidade Federal de ViçsaViçsaMinas GeraisBrazil Instituto de Ciéncias Agrárias Universidade Federal de ViçsaFlorestalMinas GeraisBrazil Embrapa Recursos Genéticos e Biotecnologia BrasíliaDFBrazil Universidade Federal de Juiz de Fora Juiz de ForaMinas GeraisBrazil

Drought stress is major abiotic stress that affects soybean ***,it is widely desirable that soybean becomes more tolerant to *** provide insights into regulatory mechanisms of the stress response,we compared the global gene expression profiles from leaves of two soybean genotypes that display different responses to water-deficit(BR 16 and Embrapa 48,drought-sensitive and droughttolerant,respectively).After the RNA-seq analysis,a total of 5335 down-regulated and 3170 up-regulated genes were identified in the *** the other hand,the number of genes differentially expressed was markedly lower in the Embrapa 48,355 up-regulated and 471 down-regulated ***,induction and expression of protein kinases and transcription factors indicated signaling cascades involved in the drought ***,the results suggest that the metabolism of pectin is differently modulated in response to drought stress and may play a role in the soybean defense mechanism against *** occurs via an increase of the cell wall plasticity and crosslink,which contributed to a higher hydraulic conductance(Kf)and relative water content(RWC%).The drought-tolerance mechanism of the Embrapa 48 genotype involves remodeling of the cell wall and increase of the hydraulic conductance to the maintenance of cell turgor and metabolic processes,resulting in the highest leaf RWC,photosynthetic rate(A),transpiration(E)and carboxylation(A/Ci).Thus,we concluded that the cell wall adjustment under drought is important for a more efficient water use which promoted a more active photosynthetic metabolism,maintaining higher plant growth under drought stress.

关键词： Gene expression RNA-seq Molecular physiology Water-use efficiency

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Study of the roles of caspase-3 and nuclear factor kappa B in myenteric neurons in a P2X7 receptor knockout mouse model of ulcerative colitis

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World Journal of Gastroenterology 2023年第22期29卷 3440-3468页

作者： Henrique Inhauser Riceti Magalhães Felipe Alexandre Machado Roberta Figueiroa Souza Marcos Antônio Ferreira Caetano Vanessa Ribeiro Figliuolo Robson coutinho-silva Patricia Castelucci Department of Surgery School of Veterinary Medicine and Animal SciencesUniversity of São PauloSão Paulo 05508-270Brazil Department of Anatomy University of São PauloSão Paulo 05508-000Brazil Biophysics Institute Carlos Chagas Filho Federal University of Rio de JaneiroRio de Janeiro 21941-902Brazil

BACKGROUND The literature indicates that the enteric nervous system is affected in inflammatory bowel diseases(IBDs)and that the P2X7 receptor triggers neuronal ***,the mechanism by which enteric neurons are lost in IBDs is *** To study the role of the caspase-3 and nuclear factor kappa B(NF-κB)pathways in myenteric neurons in a P2X7 receptor knockout(KO)mouse model of *** Forty male wild-type(WT)C57BL/6 and P2X7 receptor KO mice were euthanized 24 h or 4 d after colitis induction by 2,4,6-trinitrobenzene sulfonic acid(colitis group).Mice in the sham groups were injected with *** mice were divided into eight groups(n=5):The WT sham 24 h and 4 d groups,the WT colitis 24 h and 4 d groups,the KO sham 24 h and 4 d groups,and the KO colitis 24 h and 4 d *** disease activity index(DAI)was analyzed,the distal colon was collected for immunohistochemistry analyses,and immunofluorescence was performed to identify neurons immunoreactive(ir)for calretinin,P2X7 receptor,cleaved caspase-3,total caspase-3,phospho-NF-κB,and total NF-κ*** analyzed the number of calretinin-ir and P2X7 receptor-ir neurons per ganglion,the neuronal profile area(μm^(2)),and corrected total cell fluorescence(CTCF).RESULTS Cells double labeled for calretinin and P2X7 receptor,cleaved caspase-3,total caspase-3,phospho-NF-κB,or total NF-κB were observed in the WT colitis 24 h and 4 d *** number of calretinin-ir neurons per ganglion was decreased in the WT colitis 24 h and 4 d groups compared to the WT sham 24 h and 4 d groups,respectively(2.10±0.13 vs 3.33±0.17,P<0.001;2.92±0.12 vs 3.70±0.11,P<0.05),but was not significantly different between the KO *** calretinin-ir neuronal profile area was increased in the WT colitis 24 h group compared to the WT sham 24 h group(312.60±7.85 vs 278.41±6.65,P<0.05),and the nuclear profile area was decreased in the WT colitis 4 d group compared to the WT sham 4 d group(104.63±2.49 vs 117.41±1.14,P<0.01).The number of

关键词： Cell death Enteric nervous system Gastroenterology Inflammatory bowel diseases P2X7 receptor Purinergic signaling

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Indian medicinal plants are effective in the treatment and management of COVID-19

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BIOCELL 2023年第4期47卷 677-695页

作者： SUBHASH CHANDRA SANTWANA PALAI EDINARDO FAGNER FERREIRA-MATIAS IVO CAVALCANTE PITA-NETO CÍCERO LUCAS GOMES-RAMALHO EDLANE MARTINS DE ANDRADE RAY silva DE ALMEIDA MARCELLO IRITI HENRIQUE DOUGLAS MELO-coutinho Department of Pharmaceutical Chemistry SGRR UniversityUttarakhand248001India Department of Pharmaceutical Chemistry HNB Garhwal UniversitySrinagar246174India Department of Veterinary Pharmacology&Toxicology College of Veterinary Science and Animal HusbandryBhubaneswar751003India CECAPE—College of Dentistry Juazeiro do Norte63050-203Brazil Department of Biological Chemistry Regional University of CaririCrato63105-000Brazil Department of Biomedical Surgical and Dental SciencesUniversitàdegli Studi di MilanoMilan20133Italy National Interuniversity Consortium of Materials Science and Technology Florence50121Italy

Indian medicinal plants are referred to as the“nectar of life”owing to their phytochemicals and bioactive complexes that are beneficial in treating *** disease 2019(COVID-19)is a global health issue without any proper *** indigenous plants of India can be exploited to control the precise signs of *** Ministry of AYUSH(Ayurveda,Yoga and Naturopathy,Unani,Siddha,and Homeopathy)has advised routine usage of medicinal plants for *** plants like Zingiber officinalis,Azadirachta indica,Ocimum sanctum,Nigella sativa,Withania somnifera,Curcuma longa,Piper nigrum,Allium sativum,Tinospora cordifolia,*** immunity-boosting,antiviral,antibacterial,antioxidant and anti-inflammatory actions that can suppress and treat symptoms of *** vitro,in vivo as well as in silico validation,these phytochemicals can help us to manage and treat COVID-19 *** integration of traditional knowledge in the prophylaxis of corona infection and current skills validating it for the development of precise and powerful therapeutic approaches will more efficiently resolve different clinical aspects of *** review focuses on both traditional and emergent methods to prevent and treat COVID-19 with various Indian medicinal plants along with their phytochemicals.

关键词： Antiviral Corona virus Diagnosis Immunity Herbs

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Antiulcerogenic Effect of Brazilian Propolis Formulation in Mice

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Pharmacology & Pharmacy 2015年第12期6卷 580-588页

作者： Niraldo Paulino Lucas Amorim coutinho Jose Reinaldo coutinho Giselle Cunha Vilela Veroneide Pio da silva Leandro Amarilis Scremin Paulino Universidade Anhanguera de Sao Paulo Sao PauloBrasil Medical Lex Gestao de Informacoes & Cursos Ltda FlorianopolisBrasil

Propolis is a natural resin used around the world to treatment of several diseases. We evaluated the effect of Brazilian propolis (P1) in guinea pig isolated trachea in vitro contracted with hista-mine, in paw oedema induced by histamine in mice and anti-ulcerogenic effect of propolis formulation in mice. We used a P1 extract from South of Brazil to produce a formulation containing sodium bicarbonate and propolis dry extract (2%). In the guinea pig trachea Brazilian propolis extract (10 μg/mL) produced a non-significant inhibition in the cumulative response curve for histamine. However, the dose of 100 μg/mL shown had a significant inhibitory effect on the contraction induced by histamine (51% ± 5%). In the mouse paw oedema induced by intraplantar injection of histamine (50 μg/paw), the results showed that the treatment of the mice with P1 (10 or 100 mg/Kg (p.o) or 1 or 10 mg/Kg (i.p)), 0.5 h beforehand, significantly inhibited the paw oedema with maximal inhibition (MI) of 25% or 42% by p.o. route or 22% or 37% by i.p. route, respectively. Finally we have pre-treated mice with P1 formulation (20 mg/Kg or 40 mg/Kg, p.o, one time) or vehicle (powder) in animals submitted to diclofenac-induced ulcer, after 8 h P1 formulation inhibited of 43% or 83% of ulcers scores, respectively. Results showed that P1 formulation inhibited the ulcerogenic effect induced by diclofenac. Results suggested also, at least in part, the antiulcerogenic effect of formulation containing standardized extract of propolis can be due to the antagonistic action on the histaminergic system.

关键词： Propolis Formulation Ulcer Stomach Mice Palavras Chaves: Própolis Formula??o Oral úlcera Est?mago Camundongo

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Transmission of severe acute respiratory syndrome coronavirus 2 via fecal-oral:Current knowledge

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World Journal of Clinical Cases 2021年第28期9卷 8280-8294页

作者： Filipe Antônio França da silva Breno Bittencourt de Brito Maria Luísa Cordeiro Santos Hanna Santos Marques Ronaldo Teixeira da silva Júnior Lorena Sousa de Carvalho Samuel de Sousa Cruz Gabriel Reis Rocha Gabriel Lima Correa Santos Kathlen coutinho de Souza Rebeca Gabrielle Almeida Maciel Daiana silva Lopes Natália Oliveira e silva Márcio Vasconcelos Oliveira Fabrício Freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45002175BahiaBrazil Departamento de Ciências Naturais Universidade Estadual do Sudoeste da BahiaVitória da Conquista 45002175BahiaBrazil Departamento de Bioquímica e Biofísica Universidade Federal da BahiaSalvador 40.110-100BahiaBrazil Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil

The pandemic caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has resulted in more than 93 million cases and 2 million deaths in the ***-CoV-2 respiratory tract infection and its main clinical manifestations such as cough and shortness of breath are well known to the scientific ***,a growing number of studies have reported SARS-CoV-2-related gastrointestinal involvement based on clinical manifestations,such as diarrhea,nausea,vomiting,and abdominal pain as well as on the pathophysiological mechanisms associated with coronavirus disease ***,current evidence suggests SARS-CoV-2 transmission via the fecal-oral route and aerosol ***,studies have shown a high risk of contamination through hospital surfaces and personal ***,viable SARS-CoV-2 specimens can be obtained from aerosols,which raises the possibility of transmission through aerosolized viral particles from ***,the infection by SARS-CoV-2 via fecal-oral route or aerosolized particles should *** addition,a possible viral spread to sources of drinking water,sewage,and rivers as well as the possible risk of viral transmission in shared toilets become a major public health concern,especially in the least developed *** authors have emphasized the presence of viral RNA and even viable SARS-CoV-2 in human feces,studies on the possible fecal-oral coronavirus disease 2019 transmission become essential to understand better the dynamics of its transmission and,then,to reinforce preventive measures against this infection,leading to a more satisfactory control of the incidence of the infection.

关键词： COVID-19 SARS-CoV-2,Transmission Via fecal-oral

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Assessment of periportal fibrosis in Schistosomiasis mansoni patients by proton nuclear magnetic resonance-based metabonomics models

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World Journal of Hepatology 2022年第4期14卷 719-728页

作者： Milena Lima Rodrigues Tatiane Priscila Santos Rodrigues da Luz Caroline Louise Diniz Pereira Andrea Dória Batista Ana Lúcia coutinho Domingues Ricardo Oliveira silva Edmundo Pessoa Lopes Programa de Pós-Graduação em Medicina Tropical Centro de Ciências MédicasUniversidade Federal de PernambucoRecife 50670-901PernambucoBrazil Programa de Pós-Graduação em Química Centro de Ciências Exatas e da NaturezaUniversidade Federal de PernambucoRecife 50670-740PernambucoBrazil Hospital das Clínicas Departamento de Medicina ClínicaUniversidade Federal de PernambucoRecife 50670-901PernambucoBrazil

BACKGROUND The evaluation of periportal fibrosis(PPF)is essential for a prognostic assessment of patients with Schistosomiasis *** WHO Niamey Protocol defines patterns of fibrosis from abdominal ultrasonography,^(1)H-nuclear magnetic resonance(NMR)-based metabonomics has been employed to assess liver fibrosis in some *** To build 1H-NMR-based metabonomics models(MM)to discriminate mild from significant periportal PPF and identify differences in the metabolite *** A prospective cross-sectional study was performed on schistosomiasis patients at a University Hospital in Northeastern *** evaluated 41 serum samples from 10 patients with mild PPF(C Niamey pattern)and 31 patients with significant PPF(D/E/F Niamey patterns).MM were built using partial least squares-discriminant analysis(PLS-DA)and orthogonal projections to latent structures discriminant analysis(OPLS-DA)*** PLS-DA and OPLS-DA resulted in discrimination between mild and significant PPF groups with R2 and Q2 values of 0.80 and 0.38 and 0.72 and 0.42 for each model,*** OPLS-DA model presented accuracy,sensitivity,and specificity values of 92.7%,90.3%,and 100%to discriminate significant *** metabolites identified as responsible by discrimination were:Nacetylglucosamines,alanine,glycolaldehyde,carbohydrates,and *** MMs discriminated mild from significant PPF patterns in patients with Schistosomiasis mansoni through identification of differences in serum metabolites profiles.

关键词： Metabolomics Portal hypertension Schistosoma mansoni Biomarkers Neglected disease Nuclear magnetic resonance

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High chromosomal evolutionary dynamics in sleeper gobies(Eleotridae)and notes on disruptive biological factors in Gobiiformes karyotypes(Osteichthyes,Teleostei)

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Marine Life Science & Technology 2021年第3期3卷 293-302页

作者： Simião Alefe Soares da silva Paulo Augusto de Lima-Filho Clóvis coutinho da Motta-Neto Gideão Wagner Werneck Félix da Costa Marcelo de Bello Cioffi Luiz Antônio Carlos Bertollo Wagner Franco Molina Departamento de Biologia Celular e Genética Centro de BiociênciasUniversidade Federal do Rio Grande do NorteNatalRN59.078-970Brazil Instituto Federal de Ciência e Tecnologia do Rio Grande do Norte Santa CruzRN59200-000Brazil Departamento de Genética e Evolução Universidade Federal de São CarlosRodovia Washington LuísKm 235São CarlosSP13.565-905Brazil

The order Gobiiformes is made up of more than 2200 species,representing one of the most diverse groups among teleost *** biological causes for the tachytelic karyotype evolution of the gobies have not yet been fully *** we expanded cytogenetic data for the Eleotridae family,analyzing the neotropical species Dormitator maculatus,Eleotris pisonis,Erotelis smaragdus,and Guavina *** addition,a meta-analytical approach was followed for elucidating the karyotype diversification versus biological aspects(habitat and egg type)of the *** species *** and *** present 2n=46 acrocentric chromosomes(NF=46),*** 2n=46(36sm+4st+6a;NF=86),and ***,the most divergent karyotype,with 2n=52 acrocentric chromosomes(NF=52).Besides numeric and structural diversification in the karyotypes,the mapping of rDNAs and microsatellites also showed noticeable numerical and positional variation,supporting the high chromosomal evolutionary dynamism of these *** Gobiiformes,karyotype patterns which are more divergent from the basal karyotype(2n=46a)are associated with characteristics less effective to dispersion,such as the benthic *** adaptive characteristics,connected with the organization of the repetitive DNA content in the chromosomes,likely play a synergistic role in the remarkable karyotype diversification of this group.

关键词： Chromosome evolution Dispersive potential Goby Karyotype diversification Microsatellites rDNA

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Antibacterial enhancement of antibiotic activity by Enterolobium contortisiliquum(Vell.)Morong

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Asian Pacific Journal of Tropical Biomedicine 2017年第10期7卷 945-949页

作者： Zildene de Sousa Silveira Nair silva Macêdo Thiago Sampaio de Freitas Ana Raquel Pereira da silva Joycy Francely Sampaio dos Santos Maria Flaviana Bezerra Morais-Braga José Galberto Martins da Costa Raimundo Nonato Pereira Teixeira Jean Paul Kamdem Henrique Douglas Melo coutinho Francisco Assis Bezerra da Cunha Laboratorio de Bioprospeccao do Semioarido Universidade Regional do CaririCratoBrazil Laboratorio de Microbiologia e Biologia Molecular Universidade Regional do CaririCratoBrazil Laboratorio de Pesquisas de Produtos Naturais Universidade Regional do CaririCratoBrazil Departamento de Ciencias biologicas Universidade Regional do Cariri-URCACratoCEP:63105-000Brazil Programa de Pos-graduacao em Bioprospeccao Molecular Universidade Regional do Cariri–URCACratoBrazil

Objective: To identify the main chemical classes of compounds from aqueous extract of Enterolobium contortisiliquum(E. contortisiliquum) seed bark and to evaluate its antibacterial activity, as well as its potential to increase the activity of antibiotics against strains of Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia ***: Different classes of compounds in the aqueous extract of E. contortisiliquum were evaluated based on the visual changes in the coloration and the formation of precipitate after the addition of specific reagents. The antibacterial activity of the extract and its potential to increase of antibiotic activity of antibiotics drugs, gentamicin and norfloxacin was determined by using the microdilution ***: Our results demonstrated that the following secondary metabolites were presented in E. contortisiliquum seed bark: flavones, flavonols, xanthones, flavononols,chalcones, aurones, flavones and catechins. The extract itself had very low antibacterial activity against all bacterial strains tested(MIC ≥ 1024 μg/m L), but there was an increase in the antibiotic activity of gentamicin and norfloxacin when combined in the subinhibitory concentration(i.e., MIC/8).Conclusions: Our data suggests that E. contortisiliquum seed bark may be an alternative source for new drugs with the potential to increase antibiotic activity against different strains of bacteria.

关键词： Antibiotic activity Enhancement Synergism Chemical compounds Bioactivity

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Characterization of Pro-embryogenic Calli and Somatic Embryogenesis of Byrsonima intermedia A. Juss.

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Journal of Agricultural Science and Technology(A) 2012年第8期2卷 962-970页

作者： Luciano coutinho silva Renato Paiva Diogo Pedrosa Correa Da silva Sandro Barbosa Rairys CravoHerrera Lisete Chamma Davide Patricia Duarte De Oliveira Paiva Agronomy Plant Physiology Biology Department Federal University of Lavras (UFLA) Lavras Minas Gerais Brasil . Department of Biology and Erath Science Federal University of Alfenas (UNIFAL) MG Alfenas MG Brasil Laboratory of Plant Physiology Federal University of Par6 Altamira PA Brasil

Byrsonima intermedia A. Juss. is a species from the Brazilian Cerrado that produces edible fruits and, in common with other species from the Byrsonima genus, has pharmacological potential. Previous attempts to propagate the species through conventional methods showed difficulties. Thus, the purpose of this work was to characterize pro-embryogenic masses of Byrsonima intermedia callus, aiming for their in vitro propagation through somatic embryogenesis. Leaf segments from in vitro germinated seedlings were employed as explants for callus production. The calli were then subcultured and exposed to dyes to fulfill their embryogenic potential. Digitalizations of the cytological preparations were made in order to measure the area that was stained by both Aceto-Carmine and Evans-Blue, using image tool software. Somatic embryos were induced after treatments with l-naphthaleneacetic acid （NAA）. The percentages of double-colored areas （by Aceto-Carmine and Evans-Blue） were calculated and the data were analyzed by using the Skott-Knott test （P ≤ 0.05） and, the embryogenic callus, as well as the formation of somatic embryos were analyzed by using the Krsuskal-Wallis rank test （P ≤0.05）. The results show that double coloration is effective at identifying cells showing embryogenic potential. Early callus subculture phases show a larger percentage ofembryogenic area （83%） Somatic embryos were induced by using high auxin level.

关键词： Double staining aceto-carmine evans-blue somatic embryogenesis native plant auxin.

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Cell Viability of Byrsonima intermedia A Juss Calli

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Journal of Agricultural Science and Technology(B) 2012年第6期2卷 713-720页

作者： Luciano coutinho silva Renato Paiva Daiane Peixoto Vargas Diogo Pedrosa Correa da silva Rairys Cravo Herrera Sandro Barbosa Antonio Paulino da Costa Netto Biology Department Plant Physiology Sector Federal University of Lavras (UFLA) Caixa Postal 3037 CEP 37200-000 LavrasMinas Gerais Brasil Embrapa Clima Temperado Rodovia BR 392 km 78 CP 403 Pelotas Rio Grande do Sul CEP: 96010-971 Brasil Universidade Federal do Pare (UFPA) Campus Universitfrio de Altamira Rua Coronel Jose Porfirio 2515 Sao Sebastiao CEP68372-040 Altamira Pard Brasil Departamento de Ciencias Biologicas e da Terra Universidade Federal de Alfenas (UNIFAL) MG Rua Gabriel Monteiro da Silva 700 Centro CEP 37130-000 Alfenas Minas Gerais Brasil Laboratorio de Fisiologia Vegetal Universidade Federal de Goifs (UFG) Rua Riaehuelo S/N Unidade Jatoba Setor SamuelGraham 75804-020 Jatai GO Brasil

Byrsonima intermedia A Juss. is a species with pharmacological properties from the Brazilian Cerrado that shows difficulties related to sexual propagation. Research on cell viability may provide useful information for the selection of cells with embryogenic potential during the callus culture, Within this context, our research is aimed at establishing the cell viability of calli from Byrsonima intermedia leaf segments. The calli went through three subculture phases, of 60 days each, in MS medium with 0.09 M sucrose, 0.6% agar, pH 5.8 and 4.52 laM 2,4-D. The calli were stored in dark conditions and samples were collected every 10 days from each subculture for viability tests with fluorescein 3,6-diacetate （FDA） and 2,3,5-triphenyltetrazolium chloride （TTC）. The staining methods allowed quantifying cell viability in each subculture. The best results from the FDA tests were obtained at 21, 25 and 29 days for the first, second and third subcultures respectively, with 53,86%, 61.88% and 53.73% viable cells. Regarding the TTC test, the largest absorbance values were obtained at 21, 27 and 28 days for the first, second and third subcultures respectively. Fluorescence and spectrophotometry analyses were efficient for determination of cell viability during callus cultivation period.

关键词： Cell viability fluorescein 3 6-diacetate 2 3 5-tripheniltetrazolium chloride subculture tissue culture native plant.

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