230 documents found, page 1 of 23
Nematicidal Activity of Phytochemicals against the Root-Lesion Nematode Pratyle...
Barbosa, Pedro; Faria, Jorge M. S.; Cavaco, Tomás; Figueiredo, Ana Cristina; Mota, Manuel; Vicente, Cláudia S. L.Plant-parasitic nematodes (PPNs) are highly damaging pests responsible for heavy losses in worldwide productivity in a significant number of important plant crops. Common pest man- agement strategies rely on the use of synthetic chemical nematicides, which have led to serious concerns regarding their impacts on human health and the environment. Plant natural products, or phytochemicals, can provide a good sourc...
Multiple factors associated with forest decline in the context of control measu...
Pimentel, Carla S.; Pires, David; Campôa, João; Branco, Jordana; Marques, Raquel; Mota, Manuel; Calvão, TeresaForest decline is a complex phenomenon; however, there is often a tendency to oversimplify by attributing it to a single cause, neglecting the interaction of multiple factors. Ever since the detection of the pinewood nematode (PWN), Bursaphelenchus xylophilus, in Portugal (and in Europe) over two decades ago, pine wilt cases in the country have been primarily attributed to this pathogen, leading authorities to ...
Polyphasic approach to the selection of Esteya isolates for the control of the ...
Pires, David; Vicente, Cláudia S. L.; Mota, Manuel; Inácio, Maria L.Pine wilt disease, caused by the pinewood nematode, Bursaphelenchus xylophilus, is a major phytosanitary concern to pine forests worldwide. Managing pine wilt disease involves a complex logistical undertaking, with limited effectiveness and significant ecological repercussions. An increasing demand for biosolutions has sparked an interest in microbial antagonists capable of controlling the nematode. Esteya spp....
Developing sustainable approaches for the control of plant- parasitic nematodes...
Barbosa, Pedro; Mendonça, Madalena; Costa, Marina; Gutiérrez-Gutiérrez, Carlos; Mota, Manuel; Espada, Margarida; Vicente, Cláudia S. L.Plant-parasitic nematodes (PPN) are a serious threat for economically important crops worldwide, severely affecting the sustainability of the agricultural and forestry systems. Some PPNs are listed as quarantine pests for which restrictive regulations are imposed by phytosanitary authorities. Preventive control management strategies can help in the early detection of these pathogens. At Nemalab (Laboratory of N...
Compounds produced by plants and bacteria for the control of the plant- parasit...
Barbosa, Pedro; Faria, Jorge M. S.; Figueiredo, Ana Cristina; Mota, Manuel; Vicente, Cláudia S. L.Potato (Solanum tuberosum) is one of the world’s most common agricultural crop for human consumption and considered an excellent source of essential nutrients and vitamins. The productivity of this crop is threatened by several plant-parasitic nematodes, among which the root-lesion nematode Pratylenchus penetrans is considered to have a significant impact. This organism is extremely difficult to eradicate and c...
Nematicidal activity of oxygen-containing compounds against the root lesion nem...
Barbosa, Pedro; Faria, Jorge M. S.; Figueiredo, Ana Cristina; Mota, Manuel; Vicente, Cláudia S. L.The root lesion nematode, Pratylenchus penetrans, is a serious threat to agricultural crops worldwide, being extremely difficult to control with common pest management practices. New EU commission policies on the development of plant protection products restrict the application of synthetic nematicides. Aiming at the development of a sustainable and environment friendly approach for nematode control, 20 oxygen-...
Elucidation of the nematicidal mode of action of 3-octanol on the root-lesion n...
Barbosa, Pedro; Costa, Marina; Espada, Margarida; Figueiredo, Ana Cristina; Mota, Manuel; Vicente, Cláudia S. L.The root-lesion nematode (RLN), Pratylenchus penetrans, is one of the most severe plant parasitic nematodes (PPN), responsible for productivity losses in a significant number of plant hosts. The chemical control of these PPNs relies on fumigants and non-fumigants compounds, which offer a systemic protection. Such control methods are costly and hazardous to the environment and to humans. Compounds naturally prod...
O controlo do nemátode das lesões radiculares Pratylenchus penetrans - activida...
Barbosa, Pedro; Faria, Jorge M.S.; Figueiredo, Ana Cristina; Mota, Manuel; Vicente, Cláudia S.L.O nemátode das lesões radiculares, Pratylenchus penetrans, é um dos fitoparasitas mais destrutivo, responsável por perdas a nível mundial num significativo número de plantas hospedeiras. O controlo químico destes organismos baseia-se em fumigantes e não fumigantes, que providenciam uma protecção sistémica. Tais métodos de controlo são dispendiosos e prejudiciais quer para o ambiente quer para os humanos. Os com...
In-vitro assessment of biocides effect on two activated-sludge filamentous bact...
Ferreira, Vânia Isabel Lopes; Dias, Nicolina M.; Mota, Manuel; Pereira, Maria Olívia; Nicolau, AnaWastewater treatment is the world largest biotechnology in the world and stands for the defense of public health on one side and the protection of the natural aquatic ecosystems on the other. Activated-sludge process (AS) is the most widely used technique for wastewater treatment. The AS bacterial communities include floc-forming and non-floc-forming organisms, the latter mostly filamentous bacteria. AS goals o...
A review on the nematicidal activity of volatile allelochemicals against the pi...
Faria, Jorge M. S.; Barbosa, Pedro; Teixeira, Dora Martins; Mota, ManuelThe pinewood nematode (PWN), Bursaphelenchus xylophilus, induces shoot yellowing and wilting by injuring pine vascular tissues and resin canals. In Asia, it devastated wide forests of susceptible pine, causing drastic ecological, economic and cultural repercussions. In 1999, it reached Europe (Portugal) and despite the actions of the authorities, it rapidly advanced to the border areas of Spain, threatening the...