Prokaryotes
Mostrando 13-24 de 687 artigos, teses e dissertações.
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13. Ecogenômica de archaea e monitoramento de comunidades de procariotos redutores de sulfato: aplicações na indústria de petróleo e gás
The human activities responsible for the ambient degradation in the modern world are diverse. The industrial activities are preponderant in the question of the impact consequences for brazilian ecosystems. Amongst the human activities, the petroliferous industry in operation in Potiguar Petroliferous Basin (PPB) displays the constant risk of ambient impacts
Publicado em: 2008
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14. Biocaracterização de procariotas como agentes de biocontrole de enfermidades e como promotores de crescimento em feijoeiro / Biocaracterização de procariotas como agentes de biocontrole de enfermidades e como promotores de crescimento em feijoeiro / Biocharacterization of prokaryotes as biocontrol agents and growth promoters for beans / Biocharacterization of prokaryotes as biocontrol agents and growth promoters for beans
O Brasil é o principal produtor de feijão no mundo, com mais de três milhões de toneladas produzidas anualmente. Esta produtividade poderia ser maior, porém, vários fatores têm impedido que a produção do país aumente, entre eles, a ocorrência de doenças durante o ciclo da cultura. Mais de uma centena de patógenos já foram relatados atacando o f
Publicado em: 2008
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15. Expression, purification and DNA-binding activities of two putative ModE proteins of Herbaspirillum seropedicae (Burkholderiales, Oxalobacteraceae)
In prokaryotes molybdenum is taken up by a high-affinity ABC-type transporter system encoded by the modABC genes. The endophyte β-Proteobacterium Herbaspirillum seropedicae has two modABC gene clusters and two genes encoding putative Mo-dependent regulator proteins (ModE1 and ModE2). Analysis of the amino acid sequence of the ModE1 protein of H. seropedicae
Genetics and Molecular Biology. Publicado em: 2008
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16. Taxonomia e diversidade genética de rizóbios microssimbiontes de distintas leguminosas com base na análise polifásica (Box-PCR e 16 S RNAr) e na metodologia de MLSA
The term rhizobia is generically applied to bacteria capable of fixing the atmospheric nitrogen (N2) and converting it to a form assimilable by the plant, when in symbiosis with plants of the Leguminosae family. However, besides their ecological and economic importance, the rhizobia have not been subject of many studies. Based on the data obtained with t
Publicado em: 2008
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17. Isolamento e seleção de procariotos residentes de filoplano do tomateiro com potencial para o controle de doenças da cultura / Isolation of resident prokaryote of the tomato plant phylloplane with potential for the control of diseases of the culture
This work aimed to select tomato prokaryotic phylloplane residents for biocontrol purposes, by using Xanthomonas campestris pv. vesicatoria and Alternaria solani as challenging pathogens. Additionally, to perform a screening test using detached leaves. Consequently, leaves from healthy tomato plants were collected at Viçosa, MG and epiphytic prokaryote popu
Publicado em: 2008
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18. Passion fruit proliferation phytoplasma: molecular identification, phylogenetic analysis and proof of pathogenicity / Fitoplasma do superbrotamento do maracujazeiro: identificação molecular, análise filogenética e prova de patogenicidade
Phytoplasmas are cell wall-less prokaryotes and phloem-inhabitants associated with diseases that affect several crops. Passion fruit plant is a tropical species cultivated in various Brazilian regions. Diseases are among factors that may cause damage to this crop and the passion fruit witchesbroom has been revealed as very important one. That disease, associ
Publicado em: 2008
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19. Functional and structural analysis of the BigR protein from Xylella fastidiosa involved in the regulation of Xf0768-0764 operon / Analise funcional e estrutural da proteina BigR de Xylella fastidiosa envolvida na regulação do operon Xf0768-0764
The XF0767 gene from Xylella fastidiosa is located in an operon composed by a set of genes (XF0768-XF0767-XF0766-XF0765-XF0764) of unknown function. This operon is conserved in a number of plant-associated bacteria including Agrobacterium tumefaciens, Mezorhizobium loti e Sinorhizobium meliloti. The DNA region upstream of the operon has canonical sequences c
Publicado em: 2008
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20. Kinases of two strains of Mycoplasma hyopneumoniae and a strain of Mycoplasma synoviae: an overview
Mycoplasma synoviae and Mycoplasma hyopneumoniae are wall-less eubacteria belonging to the class of Mollicutes. These prokaryotes have a reduced genome size and reduced biosynthetic machinery. They cause great losses in animal production. M. synoviae is responsible for an upper respiratory tract disease of chickens and turkeys. M. hyopneumoniae is the causat
Genetics and Molecular Biology. Publicado em: 2007
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21. Identification of the GTPase superfamily in Mycoplasma synoviae and Mycoplasma hyopneumoniae
Mycoplasmas are the smallest known prokaryotes with self-replication ability. They are obligate parasites, taking up many molecules of their hosts and acting as pathogens in men, animals, birds and plants. Mycoplasma hyopneumoniae is the infective agent of swine mycoplasmosis and Mycoplasma synoviae is responsible for subclinical upper respiratory infections
Genetics and Molecular Biology. Publicado em: 2007
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22. Definição do banco de dados DOG para obtenção de ortologia em múltiplos proteomas através do padrão PVOM
This work presents a modeling of a data base and the process created for its instantiation with the objective to store the information necessary for the application of a new form of attainment of regions of contiguous genes that had conserved its contents, order and functions between some species of organisms prokaryotes during the evolutionary process, in o
Publicado em: 2006
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23. AnÃlise dos padrÃes de utilizaÃÃo de cÃdons sinÃnimos no genoma da bactÃria Chromobacterium violaceum
Biased codon usage may result from various factors. Among prokaryotes, it appears that the influences of natural selection and mutational biases are different if the genome is skewed towards AT or GC. A particular codon subset can often be observed in those genome regions where a maximized translational efficiency is required. Codon usage of a β-proteob
Publicado em: 2006
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24. Secretion of Streptomyces tendae antifungal protein 1 by Lactococcus lactis
Lactococcus lactis, the model lactic acid bacterium, is a good candidate for heterologous protein production in both foodstuffs and the digestive tract. We attempted to produce Streptomyces tendae antifungal protein 1 (Afp1) in L. lactis with the objective of constructing a strain able to limit fungal growth. Since Afp1 activity requires disulfide bond (DSB)
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-11