40 documents found, page 1 of 4
A molecular and spectrometric approach for tracing the origin of ancient ivory
Costa, Marina; Vicente, Cláudia S. L.; Espada, Margarida; Faria, Jorge; Teixeira, Jorge; Bettencourt, José; Teixeira, DoraThe remains recovered from ancient shipwrecks are a unique cultural, historical and archaeological heritage. The Horta Bay shipwreck (site BH-001), located at Faial Island, Azores archipelago, Portugal, was partially excavated between 2008 and 2012 and became of particular interest to scientists due to the quantity and diversity of artefacts recovered, with special emphasis to a vast elephant tusks collection o...
How parasitism genes are regulated: a motif to search for genes regulators in t...
Mendonça, Madalena; Vicente, Cláudia S. L.; Barbosa, Pedro; Velada, Isabel; Vieira, Paulo; Faria, Jorge; Santos, Margarida; Nóbrega, FilomenaPlant-parasitic nematodes threaten global agricultural and forestry systems. The search for new control strategies in line with the EU’s sustainability goals highlight significant knowledge gaps. Like all other plant pathogens, plant-parasitic nematodes deliver several parasitism proteins (effectors) into the host plant to cause disease. NemaWAARS project focuses on mechanism(s) of regulation and gene control e...
Elemental composition and antioxidant enzyme activity of roots and shoots of wh...
Faria, Jorge; Pinto, Ana Paula; Teixeira, Dora; Brito, Isabel; Dias, Luis; Barrulas, Pedro; Alho, Luis; Carvalho, MárioSoils occupied by the Montado system are acid and susceptible to winter waterlogging, promoting soil Mn bioavailability and its plant toxicity, that impairs crop yields.
Plant Metabolomics for the control of the root-lesion nematode Pratylenchus pen...
Vicente, Claudia; Faria, Jorge; Teixeira, Dora; Vieira, Paulo; Espada, Margarida; Barbosa, Pedro; Figueiredo, Joana; Cardoso, Joana; Esteves, IvaniaPratylenchus penetrans, one of the most detrimental root-lesion nematode species, greatly reduces the production in numerous important agronomic crops (e.g., corn, potato), ornamental plants (e.g., lily, roses) and fruit trees (e.g., almond, cherry orchards). In the EU, P. penetrans has been reported as the most damaging species associated with potato (Solanum tuberosum L.). In Portugal, this species was also d...
The fight against plant-parasitic nematodes: current status of bacterial and fu...
Pires, David; Vicente, Cláudia; Menéndez, Esther; Faria, Jorge; Rusinque, Leidy; Camacho, Maria João; Inácio, LurdesPlant-parasitic nematodes (PPNs) are among the most notorious and underrated threats to food security and plant health worldwide, compromising crop yields and causing billions of dollars of losses annually. Chemical control strategies rely heavily on synthetic chemical nematicides to reduce PPN population densities, but their use is being progressively restricted due to environmental and human health concerns, ...
Nematode-Mycobiota interactions in Pine Wilt Disease
Vicente, Cláudia; Faria, Jorge; Espada, Margarida; Nóbrega, Filomena; Bonifácio, Luís; Bragança, Helena; Sousa, Edmundo; Inácio, MLPine wilt disease is one of the most important diseases for conifer forests worldwide. This complex disease involves the interaction between three primary biological elements - the plant parasitic nematode Bursaphelenchus xylophilus; the insect-vector Monochamus sp., and the host tree Pinus spp. – and other secondary elements such as endophytic bacteria and fungi. The development of B. xylophilus is strongly as...
Pinhal sustentável: o combate ao nemátode da madeira do pinheiro com fungos ant...
Pires, David; Vicente Letras, Cláudia; Faria, Jorge; Mota, Manuel; Inácio, LurdesA doença da murchidão do pinheiro, causada pelo nemátode da madeira do pinheiro, é uma das maiores ameaças ao pinhal em Portugal. Os meios de luta contra o nemátode são ainda limitados, mas a utilização de fungos antagonistas para o seu controlo pode ser uma opção promissora e viável.
The Protective Biochemical Properties of Arbuscular Mycorrhiza Extraradical Myc...
Faria, Jorge; Teixeira, Dora; Pinto, Paula; Brito, Isabel; Barrulas, Pedro; Carvalho, MárioIn acidic soils with manganese (Mn) toxicity, arbuscular mycorrhizal fungi (AMF) can improve plant host growth by enhancing nutrition and protecting against environmental stress. The intact extraradical mycelium (ERM) of AMF is able to survive Mediterranean summer condi- tions and provide an earlier colonization of winter crops. This study evaluated if summer season conditions hindered the beneficial effects of...
Aluminium, Iron and Silicon Subcellular Redistribution in Wheat Induced by Mang...
Faria, Jorge; Teixeira, Dora; Pinto, Paula; Brito, Isabel; Barrulas, Pedro; Carvalho, MárioAcidic soils can promote the bioavailability of Al, Mn, and Fe to toxic levels, reducing crop growth and productivity. Symptoms of metal excess/deficit are dependent on the chemical composition of the soil solution and of plant tissues. In the present study, the concentration and subcellular distribution of Al, Mn, Fe, and Si (known to alleviate metal stress) were quantified through inductively coupled plasma m...
Arbuscular Mycorrhiza Inoculum Type Influences Phosphorus Subcellular Distribut...
Faria, Jorge; Teixeira, Dora; Pinto, Ana; Brito, Isabel; Barrulas, Pedro; Carvalho, MáriaCrop growth in acidic soils is limited by toxicity of Al and/or Mn and deficiency of phosphorus (P). Arbuscular mycorrhizal fungi (AMF) improve host water and nutrient acquisition, particularly P. When colonization is initiated from an intact extraradical mycelium (ERM), shoot P levels increase, depending on the plant species associated with ERM development (Developer). In the present study, wheat (Triticum aes...