Arquivos do Instituto Biologico最新文献_第5页

Detection of Mycobacterium sp. by multiplex PCR directly from suspicious granulomas from cold chambers in the state of Bahia, Brazil 巴西巴伊亚州冷室可疑肉芽肿多重PCR检测分枝杆菌

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000592020

Evelin Santos, I. Fehlberg, B. Fernandes, Adriano de Alcântara, B. Silva, R. Cerqueira

引用次数: 0

Seroprevalence of zika virus in a cattle flock 牛群中寨卡病毒的血清流行率

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000802019

Bianca Freire, F. Souza, V. Curci, G. Mateus, Adilson Marini, Solange de Oliveira, A. Romaldini, E. Stefano, H. Shimozako, L. Okuda

{"title":"Seroprevalence of zika virus in a cattle flock","authors":"Bianca Freire, F. Souza, V. Curci, G. Mateus, Adilson Marini, Solange de Oliveira, A. Romaldini, E. Stefano, H. Shimozako, L. Okuda","doi":"10.1590/1808-1657000802019","DOIUrl":"https://doi.org/10.1590/1808-1657000802019","url":null,"abstract":"The present research evaluated the seroprevalence of anti-zika virus (anti-ZIKV) antibodies by virus neutralization test (VNT) in 529 bovines from Andradina city, São Paulo state, Brazil. The reading was performed in an inverted optical microscope, considering reagents when the antibodies were capable to neutralize the ZIKV. Of the 529 samples, 53 (10.01%) were reagents. The animals were healthy at the time of collection. The samples were collected in February 2018, a favorable period for the multiplication of the vector and the highest risk of disease transmission. None of the animals showed anti-bovine viral diarrhea virus (anti-BVDV) antibodies, ruling out a possible cross-reaction, reinforcing the possible contact of the bovine with the ZIKV. In the herd, 88 pregnant females were evaluated; of these, 12 cows were reactive, with no history of reproductive problems or fetal malformations. This is the first research on the seroprevalence of ZIKV in cattle in Brazil, and studies should continue to evaluate cattle as a possible host of this arbovirus and its possible consequences for unique health and agribusiness.","PeriodicalId":30679,"journal":{"name":"Arquivos do Instituto Biologico","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67202695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of propolis in agriculture 蜂胶在农业中的应用

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000632019

Grimaldo Jorge Lemos de Carvalho, G. Sodré

{"title":"Application of propolis in agriculture","authors":"Grimaldo Jorge Lemos de Carvalho, G. Sodré","doi":"10.1590/1808-1657000632019","DOIUrl":"https://doi.org/10.1590/1808-1657000632019","url":null,"abstract":"This work carried out a literary review of the different aspects related to the use of propolis in the management of plant crops and their advances in agriculture. Propolis is a product widely known for its therapeutic capacity. Due to its antimicrobial and antioxidant properties, among other biological activities, its use has been studied in agriculture. Studies they show that the use of propolis via ethanolic propolis extract (EEP) provides beneficial effects on crops. These benefits are associated with the control of phytopathogens, postharvest preservation and conservation of fruits and vegetables and promotion of plant growth. There is evidence that benefits are the result of the propolis chemical composition that is especially rich in phenolic compounds and nutrients. In addition, the typical waxy property of propolis results in an efficient biofilm in plant tissues. There are still scarce reports showing that the use of EEP in crop management controls the presence of insects and reduces water stress in plants. Generally, studies are mainly focused on in vivo and greenhouse evaluations, requiring further research to elucidate the full potential of the use of propolis in crop management.","PeriodicalId":30679,"journal":{"name":"Arquivos do Instituto Biologico","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67202423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Phytochemical profile and antifungal action of Anadenanthera colubrina extract on the quality of maize seeds 绿枝苋提取物对玉米种子品质的植物化学特征及抑菌作用

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000762019

José George Ferreira Medeiros, Aderson Costa Araujo Neto, E. C. Silva, R. Rodrigues, A. C. F. Demartelaere, José Vinicius Bezerra da Silva

引用次数: 3

Serological evidence of Toxoplasma gondii occurrence in naturally infected sheep in the Teresina microregion, Piauí, Brazil 巴西Teresina微区(Piauí)自然感染绵羊中刚地弓形虫发生的血清学证据

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000152020

L. C. S. Feitosa, Andressa de Carvalho Teixeira Lima Celestino, Siluana Benvindo Ferreira, J. F. S. Cardoso, T. G. Tenório, N. Paula, A. Mineiro

{"title":"Serological evidence of Toxoplasma gondii occurrence in naturally infected sheep in the Teresina microregion, Piauí, Brazil","authors":"L. C. S. Feitosa, Andressa de Carvalho Teixeira Lima Celestino, Siluana Benvindo Ferreira, J. F. S. Cardoso, T. G. Tenório, N. Paula, A. Mineiro","doi":"10.1590/1808-1657000152020","DOIUrl":"https://doi.org/10.1590/1808-1657000152020","url":null,"abstract":"Toxoplasmosis is a zoonosis of reproductive nature that is transmitted to humans mainly by ingestion of undercooked meat or drinking oocyte-contaminated water. The slaughter of small ruminants in clandestine slaughterhouses and the presence of companion animals in these locations may be epidemiologically important for the dissemination of the disease. The objective of the present study was to determine toxoplasmosis prevalence by researching anti- Toxoplasma gondii antibodies in meat sheep herds from farms in Teresina microregion, Piauí, Brazil. A total of 450 blood samples were collected from sheep of both sexes, belonging to 28 herds from the 14 municipalities that comprise the microregion. The samples were analyzed by the enzyme-linked immunosorbent assay (ELISA), and the presence of anti- T. gondii antibodies was observed in 62% (279/450) of the animals in all the municipalities and on at least one farm in each municipality. The high occurrence of positive animals is an indication of reproductive problems in these herds, characterizing a problem for both sheep rearing and public health.","PeriodicalId":30679,"journal":{"name":"Arquivos do Instituto Biologico","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67201394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Withdrawal period for seeding cotton after chemical control of cotton stalks 棉秆化学防治后的退种期

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000392020

A. C. Francischini, J. Constantin, W. D. Matte, Rubem Silvério de Oliveira Júnior, R. Mendes, F. G. Machado

{"title":"Withdrawal period for seeding cotton after chemical control of cotton stalks","authors":"A. C. Francischini, J. Constantin, W. D. Matte, Rubem Silvério de Oliveira Júnior, R. Mendes, F. G. Machado","doi":"10.1590/1808-1657000392020","DOIUrl":"https://doi.org/10.1590/1808-1657000392020","url":null,"abstract":"Arq. Inst. Biol., v.88, 1-12, e00392020, 2021 ABSTRACT A very limited amount of information is available in relation both to the residual effect of herbicides destinated to the destruction of cotton stalks and to the time interval required to prevent that development and yield of the following crop be affected. This work aimed to identify the residual activity of herbicides intended to eliminate cotton stalks and to estimate the safety interval (SI) of time for the next cotton sowing. Two trails were simultaneously carried out, the first one for a single application and a second one for the two sequential applications of herbicide treatments, in a 15×5 factorial design organized in randomized complete blocks with four replications. Levels of first factor were constituted by herbicide treatments and the levels of the second factor were composed five periods of time for cotton sowing after herbicide application (0, 30, 60, 90, and 120 days). Herbicides were 2,4-D, glyphosate, saflufenacil, [imazapic + imazapyr], dicamba, fluroxypyr and sulfentrazone. Results provided an indication of residual activity of herbicide treatments in soil and indicated that a single application or two sequential applications of glyphosate + dicamba + saflufenacil have a considerable potential to affect cotton and a period exceeding 100 days for a single application and exceeding 120 days for two sequential applications was necessary. Treatments with 2,4-D and 2,4-D + glyphosate provided the shortest safe interval and may be used for cotton stalk destruction with no risks for the crop sowing after the withdrawal period.","PeriodicalId":30679,"journal":{"name":"Arquivos do Instituto Biologico","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67201692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antagonistic microorganisms and nitrogen fertilization in control of tomato southern blight 拮抗微生物与施氮防治番茄南枯萎病的研究

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000502019

N. Blanco, Danilo R.M. Barbosa, F. Graichen

引用次数: 4

Spatiotemporal analysis of distribution of pest and predator in corn crops 玉米作物害虫和捕食者的时空分布分析

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000332020

Marcello Neiva de Mello, C. T. Dias, E. Medeiros, I. Martins, Lourival Dias Campos

引用次数: 1

Cytotoxicity and the bioconversion strategy of Aristolochia spp. 马兜铃的细胞毒性及生物转化策略。

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000622019

C. Nogueira, J. Silva, M. C. Vieira, C. Cardoso, R. Carvalho, C. Amaral, A. Amaral

{"title":"Cytotoxicity and the bioconversion strategy of Aristolochia spp.","authors":"C. Nogueira, J. Silva, M. C. Vieira, C. Cardoso, R. Carvalho, C. Amaral, A. Amaral","doi":"10.1590/1808-1657000622019","DOIUrl":"https://doi.org/10.1590/1808-1657000622019","url":null,"abstract":"Aristolochia plants are notable from an ethnopharmacological viewpoint, but the relevance of these species for medicinal purposes has been debated because of their inherent toxicity. The convergence of these contrasting realities can be readily achieved using bioconversion methods, which have been shown to be useful tools for numerous applications, including the detoxification of biomass. In this context, methanolic extracts of leaves from Aristolochia triangularis and Aristolochia gibertii , as well as the feces of Battus polydamas larvae fed with leaves from these plants, were prepared, and their cytotoxic activities were evaluated on a human fibroblast cell line (GM07492). The leaf extracts were found to be cytotoxic, leading to reductions of 42.1 and 33.8% on cell viability, respectively, while the fecal extracts were considered inactive. In addition to evidencing the cytotoxicity of A. triangularis and A. gibertii , these findings demonstrated a potential bioconversion strategy for obtaining aristolochiaceous extracts with reduced toxicity using the larvae of a specialist phytophagous insect, thus renewing expectations in relation to the pharmacological importance of Aristolochia spp. The results were also ecologically relevant, as B. polydamas larvae were found to be able to detoxify compounds from host plants.","PeriodicalId":30679,"journal":{"name":"Arquivos do Instituto Biologico","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67202211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Population growth of Tetranychus urticae Koch (Acari: Tetranychidae) and predation rate of the pest mite by Neoseiulus idaeus Denmark & Muma (Acari: Phytoseiidae) in two grape cultivars 两种葡萄品种荨麻叶螨(叶螨螨科)的种群增长及丹麦新绥螨和马螨(叶螨螨科)的捕食率

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI: 10.1590/1808-1657000752019

Andréia Alex Sandra da Silva Pantaleão, José Osmã Teles Moreira, M. E. Sato, J. A. D. A. Pionório

引用次数: 4