Research Article

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05/31/2017
Azospirillum brasilense; Expressed sequence tags; Genotype; Glutamate-Ammonia Ligase; Nitrate reductase; Nitrogen; Plant Proteins; Zea mays

The relative quantitative real-time expression of two expressed sequence tags (ESTs) codifying for key enzymes in nitrogen metabolism in maize, nitrate reductase (ZmNR), and glutamine synthetase (ZmGln1-3) was performed for genotypes inoculated with Azospirillum brasilense. Two commercial single-cross hybrids (AG7098 and 2B707) and two experimental synthetic varieties (V2 and V4) were raised ... more

L. Pereira-Defilippi; E.M. Pereira; F.M. Silva; G.V. Moro
06/29/2017
Basic-Leucine Zipper Transcription Factors; Edible Grain; Homeostasis; Plant breeding; Plant Proteins; Zinc

Members of the basic leucine zipper family, as bZIP19, are considered to be essential regulators of the adaptation to zinc deficiency. Knowing that this gene as well as its targets are conserved in the plant kingdom, we followed an in silico approach to identify and characterize the bzip19 gene in cereals. Through BLASTp in Phytozome database, 33 bzip19 genes were identified on the genomes of ... more

A.R. Henriques; daR. Farias; C. de Oliveira
06/29/2017
Actins; Aquaporins; Cold-Shock Response; Cyclophilins; Eukaryotic Initiation Factor-4A; Genes, Plant; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating); Oryza; Plant Proteins; Real-time polymerase chain reaction; Reference Standards; Tubulin; Ubiquitins

Rice is a cereal that presents a great ability to adapt to different soil and climate conditions. However, as it is a tropical crop with C3 metabolism, it performs better in warm temperatures with high solar radiation. Tolerance to stress caused by low temperatures is a highly complex process that involves various metabolic pathways and cellular compartments, resulting in general or specific ... more

P.A. Auler; L.C. Benitez; M.N. do Amaral; I.L. Vighi; G.S. Rodrigues; L.C. da Maia; E.J.B. Braga
07/06/2017
Fusarium; Gene Expression Regulation, Plant; Genetic markers; Genetic variation; Heat-shock proteins; Inbreeding; Lipoxygenase; maternal inheritance; Plant breeding; Plant Immunity; Plant Proteins; Selection, Genetic; Zea mays

In recent years, there has been a large incidence of fungi causing "ear rot" in maize in Brazil, the main fungus being Fusarium verticillioides. The most efficient and competitive alternative for control of this disease consists of using maize hybrids resistant to this pathogen. Thus, the aims of this study were to analyze the genetic variability of maize inbred lines in regard to resistance ... more

G.S. Pereira; R.G.V. Pinho; E.V.R.V. Pinho; L.P.M. Pires; L.A.Y.Bernar Junior; J.L.A. Pereira; M.P. Melo
08/31/2017
Amino Acid Motifs; Cloning, Molecular; Droughts; Hordeum; Plant Proteins; Protein domains; Qa-SNARE Proteins; Stress, Physiological

Tibetan barley is a staple food for the natives of Qinghai-Tibet Plateau. Drought causes a reduction in barley production. In this study, the full-length cDNA of a gene encoding a syntaxin-associated protein was cloned from the leaves of a drought-resistant variety of barley, "Himalaya 10"; its expression was evaluated during drought stress and rehydration via real-time PCR. The cloned HbSYR1 ... more

Q.J. Xu; Y.L. Wang; Z.X. Wei; H.J. Yuan; X.Q. Zeng; N. Tashi
09/27/2017
Genome, Plant; Iron; Oryza; Phenotype; Plant Proteins; Stress, Physiological; Transcription factors

Iron (Fe) is an essential microelement for all living organisms playing important roles in several metabolic reactions. Rice (Oryza sativa L.) is commonly cultivated in paddy fields, where Fe goes through a reduction reaction from Fe to Fe. Since Fe is more soluble, it can reach toxic levels inside plant cells, constituting an important target for studies. Here we aimed to verify morphological ... more

V.E. Viana; N. Marini; T. Finatto; I. Ezquer; C. Busanello; R.S.Dos Santos; C. Pegoraro; L. Colombo; C. de Oliveira
09/27/2017
Arachis; Genotype; Plant Leaves; Plant Proteins; Resveratrol; RNA, Messenger; Stilbenes; Tetraploidy; Transcriptional activation; Ultraviolet Rays

Resveratrol is an antioxidant that is a promising antitumoral, cardioprotective and neuroprotective agent. It has been found in a restricted number of plants including peanut (Arachis hypogaea L.) and its wild relatives. The objective of this study was to understand the relationship between resveratrol content and the expression of putative resveratrol synthase genes in four Arachis genotypes ... more

P.A.S.V. Carvalho; A.C. Brasileiro; S. Leal-Bertioli; D.J. Bertioli; J.P. Silva; T.S. Agostini-Costa; M.A. Gimenes

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