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Invasion of Alien Plants in the Caatinga Riome

AMBIO－人类环境杂志 2006年第3期35卷 141-143页

作者： arnóbio Cavalcante and Istvan Major Phyto-Invaders of Ceará Project Universidade Estadual do Ceará Centro de Cincias e Tecnologia Av.Paranjana Campus do Itaperi C.P.60 740-000 Fortaleza Ceará Brazil

引言我们对外来人侵植物是如此熟悉，以至于我们乐意将它们看作本地植物。这样的植物可供我们食用，并以它们夺目的美丽使我们感到愉悦。但是，它们隐蔽而巧妙地侵蚀自然景观，在所到之处造成显著的改变。偏远地带和岛屿景观可能是个例... 详细信息

引言我们对外来人侵植物是如此熟悉，以至于我们乐意将它们看作本地植物。这样的植物可供我们食用，并以它们夺目的美丽使我们感到愉悦。但是，它们隐蔽而巧妙地侵蚀自然景观，在所到之处造成显著的改变。偏远地带和岛屿景观可能是个例外，入侵植物的影响非常迅速和显而易见。最近，这种现象已经成为一个具有相当全球影响力的经济、社会特别是生态问题。由于这个原因，外来入侵植物受到了决策者、非政府组织（NGOs）和科学家的诸多关注，他们迫切想找到下面问题的答案：入侵植物有那些？它们在哪儿存在？

关键词：外来植物入侵生态问题外来入侵植物群系自然景观非政府组织决策者科学家

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Biotechnological Potential of Endophytic Bacteria to Improve the Micropropagated Seedling of Variety RB92579 Sugarcane(Saccharum officinarum L.)

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Advances in Microbiology 2018年第11期8卷 859-873页

作者： Maria do Carmo Silva Barreto Márcia do Vale Barreto Figueiredo Márcia Vanusa da Silva arnóbio Gon?alves de Andrade José de Paula de Oliveira Clébia Maria Alves Almeida Livia Caroline Alexandre de Araújo Odemar Vicente dos Reis Junior Manoel Urbano Ferreira Junior Antonio Félix da Costa Vera Lucia de Menezes Lima Departamento de Bioquímica Centro de Biociências Universidade Federal de Pernambuco Recife Brazil Laboratório de Biologia do Solo Instituto Agron&#244 mico de Pernambuco Recife Brazil Departamento de Química Universidade Federal Rural de Pernambuco Recife Brazil Centro de Tecnologias Estratégicas do Nordeste Recife Brazil

Endophytic bacteria may influence agricultural production in several ways, including promoting plant growth. Two experiments were conducted in order to evaluate the combination of endophytic bacteria from the Brazilian Northeast region aims at the commercial introduction of the inoculation of these bacteria in micropropagated sugarcane plants using a temporary immersion bioreactor. One experiment was done in tubes with sterile commercial substrate, and the other was done in pots with soil;both were installed in a greenhouse. A mixed inoculation was performed in six inoculated endophytic diazotrophic bacteria in micropropagated sugarcane plants, variety RB92579. In the experiment with soil, the mixed inoculation significantly increased the shoot dry matter of plants without the addition of nitrogen fertilizer. However, the accumulation of total-N in the tissues showed no significant differences between treatments with and without nitrogen fertilization. The evaluation of micropropagated seedlings showed no increases in the parameters tested. The results showed that the response of inoculation in temporary immersion bioreactor micropropagation is possible, and that the application of homologous strains may have contributed to a better response by the interaction of endophytic bacteria with sugarcane RB92579. Further studies should be conducted to improve the methodology, which indicates a great potential to optimize this process on a commercial scale.

关键词： Biological Nitrogen Fixation Meristem Culture Diazotrophic Bacteria Endophytes Micropropagation

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Temporomandibular Disorder in University Students of the Parque das Rosas Campus, Universidade Estácio de SáThat Practice Sports

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Health 2016年第1期8卷 18-23页

作者： Rosineli Paz Cabral Manuel Eduardo Moiolli-Rodrigues Flávia Lima Kleinsorgen Motta Francisco Carlos Kleinsorgen de Souza Motta Juliana Rocha da Silva Larissa Malheiros Neide Martins Leonardo Trepte André Luiz G. Abrão Adalgisa Maiworm Luiz Carlos Oliveira Raphael Lemgruber Cardoso Adriano arnóbio Giuseppe Antonio Presta Danúbia da Cunha de Sá Caputo Sebastião David Santos Filho Éric Heleno F. F. Frederico Mario Bernardo-Filho Severo de Paoli Universidade Estácio de Sá—Campus R9—GEPS R9 Rio de Janeiro Brasil Universidade Estácio de Sá—Campus Parque das Rosas Rio de Janeiro Brasil Departamento de Biofísica e Biometria Instituto de Biologia Roberto Alcantara Gomes Universidade do Estado de Rio de Janeiro Rio de Janeiro Brasil Programa de Pós-Graduacao em Fisiopatologia Clínica e Experimental Faculdade de Ciências Médicas Universidade do Estado do Rio de Janeiro Rio de Janeiro Brasil UniFacex—Centro Universitário do Facex Natal Brasil Programa de Pós-Graduacao em Biociências Instituto de Biologia Roberto Alcantara Gomes Universidade do Estado do Rio de Janeiro Rio de Janeiro Brasil

The stomatognathic system (SS) is a functional unit of the body that depends on the balance of several tissues. It consists of various structures, including the temporomandibular joint. Temporomandibular disorder (TMD) can occur due to alterations in the SS. The Fonseca Anamnestic Index (FAI) is a scale used to evaluate and to characterize the TMD Type: no DTM, mild, moderate and severe. The aim is to evaluate the prevalence of signs and symptoms related to TMD in university students of the Parque das Rosas Campus, Universidade Estácio de Sá that practice sports. This investigation was approved (CAAE number 325678413.9.0000.5284). Two hundred eighth students (110 male and 98 female, aged 19 - 35 years) accepted to be in this investigation. All the participants answered a General Questionnaire (GQ) and the FAI. The GQ had questions about the age, sex and the presence of TMD. The FAI was used. A statistical difference (p > 0.05) was not found about the presence of TMD. Among the female, an elevated number of the students with signal or symptoms related to the temporomandibular with statistic significance (p < 0.05) was observed. In the population without TMD, the prevalence of this disorder is higher between male than female. Considering the FAI, among the female students, there is a prevalence of the Mild Type. Considering the evaluation of the type of TMD among the male and female students no difference was found between male and female to the types mild and moderate, however, the prevalence of the severe Type is higher in female than in male with statistical significance. In conclusion, TMD is a relevant clinical condition with an important prevalence among the university students. Moreover, the type of the TMD could be considered due to prevalence of the Type Severe among the women.

关键词： Temporomandibular Disorder University Student Fonseca Anamnestic Index Prevalence

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高度保守Trp114残基在TrxR1酶催化、寡聚化和氧化应激中的作用机制

高度保守Trp114残基在TrxR1酶催化、寡聚化和氧化应激中的作用机制

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第五届泛环渤海生物化学与分子生物学会学术交流会

作者：许建强 Eriksson S.E. Cebula M. Sandalova T. E Hedstr?m E. I Pader Cheng Q. Myers C.R. Antholine W.E. Nagy P. Hellman U. Selivanova G. Lindqvist Y. arnér E.S.J. 大连理工大学生命与医药学院瑞典斯德哥尔摩市卡罗林斯卡医学院医学生物化学与生物物理系(MBB) 瑞典斯德哥尔摩市卡罗林斯卡医学院微生物、肿瘤与细胞生物学系(MTC) 威斯康辛医学院药理与毒理系威斯康辛医学院生物物理系匈牙利布达佩斯市国家肿瘤研究所分子免疫与毒理系瑞典乌普萨拉大学生物医学中心路德维哥肿瘤研究所

哺乳动物硒蛋白硫氧还蛋白还原酶(Trx R1)在维持细胞氧化还原平衡中发挥着关键作用。我们研究发现Trx R1存在表位暴露的Trp114残基,在进化上高度保守,但性质非常活泼、易于氧化,能够调控氧化还原过程。实验结果显示,Trp114残基与酶的FA... 详细信息

哺乳动物硒蛋白硫氧还蛋白还原酶(Trx R1)在维持细胞氧化还原平衡中发挥着关键作用。我们研究发现Trx R1存在表位暴露的Trp114残基,在进化上高度保守,但性质非常活泼、易于氧化,能够调控氧化还原过程。实验结果显示,Trp114残基与酶的FAD基团发生交互作用,是生理活性反应的电子中继站;Trp114氧化引发该酶的寡聚化,从活性二聚体形成四聚体及高聚体。通过对细胞提取物进行质谱解析,对Trx R1四聚体进行晶体结构研究,我们发现了Trx R1分子亚基上的氧化态Trp114之间形成共价键是Trx R1寡聚化的分子基础。当使用促氧化p53激活型抗癌化合物RITA处理HCT116细胞,细胞内Trx R1的氧化态Trp114也形成共价键,这与细胞死亡直接关联;而使用抗氧化试剂却可以保护和防止细胞死亡。这些结果表明Trp114残基为Trx R1提供了新的功能调控,在过度氧化条件下Trp114是一种不可逆传感器,与胞内氧化还原和诱导细胞死亡密切相关。

关键词：硒蛋白硫氧还蛋白还原酶硒代半胱氨酸寡聚化氧化应激细胞死亡

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