50 documents found, page 1 of 5
CRISPR/Cas13 for the Control of Plant Viruses
Ribeiro, J. A.; Varanda, C.M.R.; Materatski, P.; Campos, M.D.; Patanita, M.; Albuquerque, A.; Garrido, N.; Monteiro, T.; Santos, F.; Félix, M.R.F.Plant viruses are one of the main threats to crops and food security worldwide, being very difficult to monitor and control. Since there are no effective chemical products against plant viruses, using virus-resistant plants is often the only option. Many promising strategies have been developed to engineer virus resistance however, several setbacks have hampered their utility in agriculture. In prokaryotes, clu...
Long-Term Physical Activity Modulates Lipid Metabolism and Gene Expression in M...
Martins, José Manuel; Albuquerque, A.; Silva, D.; Neves, J.; Charneca, R.; Freitas, A.This study examined the effect of long-term physical activity during the finishing period on meat and fat quality, and metabolic gene expression in obese Alentejano (AL) pigs. From 87.3 to 161.6 kg BW and for 130 days, eighteen pigs were assigned to either individual pens without an exercise area (NE, n = 9) or an outdoor park with an exercise area (WE, n = 9). Both groups received identical commercial diets at...
Influence of Sex and a High-Fiber Diet on the Gut Microbiome of Alentejano Pigs...
Albuquerque, A.; Garrido, N.; Charneca, R.; Egas, C.; Martin, L.; Ramos, A.; Costa, F.; Marmelo, C.; Martins, J.M.This study investigates the influence of sex and a dietary transition on the gut microbiota of a local Portuguese pig breed. Three groups of male Alentejano pigs (n = 10 each) were raised between ~40 and 160 kg LW. Group C included pigs that were surgically castrated, while the I group included intact ones; both were fed with commercial diets. The third group, IExp, included intact pigs that were fed commercial...
Efeito de uma dieta rica em fibra no crescimento, características da carcaça e ...
Martins, J.M.; Charneca, R.; Albuquerque, A.; Neves, J.; Freitas, A.; Costa, F.; Marmelo, C.; Ramos, A.; Martin, L.Este estudo visou avaliar em suínos Alentejanos (AL) os efeitos do sexo (animais castrados vs. inteiros) e de uma dieta de engorda rica em fibra no crescimento e qualidade da carcaça e gordura. Esta dieta experimental, com leguminosas produzidas localmente e subprodutos agroindustriais, tinha como finalidade reduzir os compostos causadores do sabor e odor a varrasco (“boar taint”) em machos inteiros. Usaram-se ...
Fatores de promoção do sucesso e da equidade entre alunos com e sem origens imi...
Albuquerque, A.O paradigma da eficácia escolar implica, hoje, a capacidade de as organizações escolares combaterem as desigualdades no desempenho de alunos de diferentes origens socioculturais. Contudo, são ainda escassos os estudos que procuram identificar as características escolares que beneficiam concretamente alunos descendentes de imigrantes. Este texto apresenta os resultados parciais de um estudo de caso, realizado nu...
Tomato Response to Fusarium spp. Infection under Field Conditions: Study of Pot...
Ribeiro, J.A.; Albuquerque, A.; Materatski, P.; Patanita, M.; Varanda, C.M.R.; Félix, M.D.R.; Campos, M.D.Tomato is one of the most important horticultural crops in the world and is severely affected by Fusarium diseases. To successfully manage these diseases, new insights on the expression of plant– pathogen interaction genes involved in immunity responses to Fusarium spp. infection are required. The aim of this study was to assess the level of infection of Fusarium spp. in field tomato samples and to evaluate the...
Metagenomic Assessment Unravels Fungal Microbiota Associated to Grapevine Trunk...
Patanita, M.; Albuquerque, A.; Campos, M.D.; Materatski, P.; Varanda, C.M.R.; Ribeiro, J.A.; Félix, Félix, M.D.R.Grapevine trunk diseases (GTDs) are among the most important problems that affect the longevity and productivity of vineyards in all the major growing regions of the world. They are slow-progression diseases caused by several wood-inhabiting fungi with similar life cycles and epidemiology. The simultaneous presence of multiple trunk pathogens in a single plant together with the inconsistent GTDs symptoms expres...
Defense Strategies: The Role of Transcription Factors in Tomato–Pathogen Intera...
Campos, M.D.; Félix, M.D.R.; Patanita, M.; Materatski, P.; Albuquerque, A.; Ribeiro, J.A.; Varanda, C.M.R.Tomato, one of the most cultivated and economically important vegetable crops throughout the world, is affected by a panoply of different pathogens that reduce yield and affect product quality. The study of tomato–pathogen system arises as an ideal system for better understanding the molecular mechanisms underlying disease resistance, offering an opportunity of improving yield and quality of the products. Among...
Outdoor finishing of intact male pigs of local breed on a high fibre diet: effe...
Martins, J.M.; Charneca, R.; Varino, R.; Albuquerque, A.; Freitas, A.; Neves, J.; Costa, F.; Marmelo, C.; Ramos, A.; Martin, L.Thirty male pigs of the Portuguese Alentejano (AL) breed raised outdoors with ad libitum water and feed were used to test the effects of a new high soluble dietary fibre feed on animal performance and carcass traits. From 40 to 130kg body weight, surgically castrated (group C) and intact pigs (groups I and IE) were fed with commercial feeds. From 130kg until slaughter (160kg), groups C and I ate a commercial di...
Loin and fat quality of Portuguese local Alentejano and Bísaro pigs and their c...
Martins, J.M.; Albuquerque, A.; Rodrigues, M.J.; Neves, J.; Freitas, A.; Nunes, J.T.; Charneca, R.Alentejano (AL) and Bísaro (BI) Portuguese local pig breeds cohabited in Ribatejo region for some time. Their crosses (RI pigs) and the products obtained, although appreciated, disappeared in the 1950’s without being scientifically evaluated. To assess the meat quality of RI pigs, castrated males from AL, BI, ALxBI and BIxAL genotypes were studied within the framework of the TREASURE project. Raised in a tradit...