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Analysis of castor bean ribosome-inactivating proteins and their gene expression during seed development Genet. Mol. Biol.
Loss-Morais,Guilherme; Turchetto-Zolet,Andreia Carina; Etges,Matheus; Cagliari,Alexandro; Körbes,Ana Paula; Maraschin,Felipe dos Santos; Margis-Pinheiro,Márcia; Margis,Rogério.
Ribosome-inactivating proteins (RIPs) are enzymes that inhibit protein synthesis after depurination of a specific adenine in rRNA. The RIP family members are classified as type I RIPs that contain an RNA-N-glycosidase domain and type II RIPs that contain a lectin domain (B chain) in addition to the glycosidase domain (A chain). In this work, we identified 30 new plant RIPs and characterized 18 Ricinus communis RIPs. Phylogenetic and functional divergence analyses indicated that the emergence of type I and II RIPs probably occurred before the monocot/eudicot split. We also report the expression profiles of 18 castor bean genes, including those for ricin and agglutinin, in five seed stages as assessed by quantitative PCR. Ricin and agglutinin were the most...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agglutinin; Evolution; Lipase; Ricinus communis; Ricin; RIPs.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100011
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Diversity and evolution of plant diacylglycerol acyltransferase (DGATs) unveiled by phylogenetic, gene structure and expression analyses Genet. Mol. Biol.
Turchetto-Zolet,Andreia Carina; Christoff,Ana Paula; Kulcheski,Franceli Rodrigues; Loss-Morais,Guilherme; Margis,Rogerio; Margis-Pinheiro,Marcia.
Abstract Since the first diacylglycerol acyltransferase (DGAT) gene was characterized in plants, a number of studies have focused on understanding the role of DGAT activity in plant triacylglycerol (TAG) biosynthesis. DGAT enzyme is essential in controlling TAGs synthesis and is encoded by different genes. DGAT1 and DGAT2 are the two major types of DGATs and have been well characterized in many plants. On the other hand, the DGAT3 and WS/DGAT have received less attention. In this study, we present the first general view of the presence of putative DGAT3 and WS/DGAT in several plant species and report on the diversity and evolution of these genes and its relationships with the two main DGAT genes (DGAT1 and DGAT2). According to our analyses DGAT1, DGAT2,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triacylglycerol biosynthesis; DGAT; Phylogeny; Gene structure.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400524
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Genome-wide analysis of the Glycerol-3-Phosphate Acyltransferase (GPAT) gene family reveals the evolution and diversification of plant GPATs Genet. Mol. Biol.
Waschburger,Edgar; Kulcheski,Franceli Rodrigues; Veto,Nicole Moreira; Margis,Rogerio; Margis-Pinheiro,Marcia; Turchetto-Zolet,Andreia Carina.
Abstract sn-Glycerol-3-phosphate 1-O-acyltransferase (GPAT) is an important enzyme that catalyzes the transfer of an acyl group from acyl-CoA or acyl-ACP to the sn-1 or sn-2 position of sn-glycerol-3-phosphate (G3P) to generate lysophosphatidic acids (LPAs). The functional studies of GPAT in plants demonstrated its importance in controlling storage and membrane lipid. Identifying genes encoding GPAT in a variety of plant species is crucial to understand their involvement in different metabolic pathways and physiological functions. Here, we performed genome-wide and evolutionary analyses of GPATs in plants. GPAT genes were identified in all algae and plants studied. The phylogenetic analysis showed that these genes group into three main clades. While clades...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant lipids; GPAT enzymes; Phylogeny; Evolution; Gene expression.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000200355
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Identification and in silico characterization of soybean trihelix-GT and bHLH transcription factors involved in stress responses Genet. Mol. Biol.
Osorio,Marina Borges; Bücker-Neto,Lauro; Castilhos,Graciela; Turchetto-Zolet,Andreia Carina; Wiebke-Strohm,Beatriz; Bodanese-Zanettini,Maria Helena; Margis-Pinheiro,Márcia.
Environmental stresses caused by either abiotic or biotic factors greatly affect agriculture. As for soybean [Glycine max (L.) Merril], one of the most important crop species in the world, the situation is not different. In order to deal with these stresses, plants have evolved a variety of sophisticated molecular mechanisms, to which the transcriptional regulation of target-genes by transcription factors is crucial. Even though the involvement of several transcription factor families has been widely reported in stress response, there still is a lot to be uncovered, especially in soybean. Therefore, the objective of this study was to investigate the role of bHLH and trihelix-GT transcription factors in soybean responses to environmental stresses. Gene...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drought; Gene expression; Glycine max; Phylogeny; Plant-microbe interactions.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200005
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