39 documents found, page 1 of 4
PratyOmics - Metabolómica da planta para o controlo do nemátode das lesões radi...
Barbosa, Pedro; Costa, Marina; Espada, Margarida; Teixeira, Dora; Brás, Teresa; Duarte, Fátima; Figueiredo, Joana; Cardoso, Joana; Esteves, IvâniaO nemátode-das-lesões-radiculares (NLR), Pratylenchus penetrans, é um endoparasita migratório que afeta culturas agrícolas economicamente importantes, como a batata, estando atualmente presente na lista de pragas reguladas não sujeitas a quarentena A2 da União Europeia (UE 2016/2031). Em alguns países europeus, como Portugal, esta espécie foi detetada em campos de produção de batata estando relacionada com o se...
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...
A Multi-Analytical Characterization of Mortars from Kathmandu (Nepal) Historica...
Tsoupra, Tsoupra; Maharjan, Monalisa; Teixeira, Dora; Candeias, Antonio; Galacho, Cristina; Moita, PatríciaThe historical monuments of the ‘City of Temples’ (Kathmandu) represent an intrinsic component of Nepal’s cultural heritage. The 2015 devastating Gorkha earthquake, besides human casualties, has led to a widespread demolition or partial damage of monuments at UNESCOWorld Heritage Sites, including the ones in Durbar squares. This study, through an integrated material characterization of masonry binders, used in ...
Subcellular Element Distribution in Shoots of Wheat Grown in an Acidic Soil wit...
Faria, J. M. S.; Pinto, A. P.; Teixeira, Dora; Barrulas, P.; Brito, I.; Carvalho, M.Soil acidity can reduce crop growth by increasing bioavailable soil Al, Fe, and/or Mn to toxic levels. The presence of an intact extraradical mycelium (ERM) of arbuscular mycorrhizal fungi (AMF), developed by the native Ornithopus compressus in the acidic soil, can increase wheat growth and prevent symptoms of Mn toxicity. To understand the protective effect of the intact ERM of this native plant on wheat eleme...
Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) Mapping...
Faria, J. M. S.; Barrulas, P.; Teixeira, Dora; Pinto, A. P.; Brito, I.; Carvalho, M.Abstract: In acidic soils with Mn toxicity, the development of an intact arbuscular mycorrhiza extraradical mycelium (ERM) by stress-adapted native plants can promote increased growth and protection against metal toxicity, in subsequent crops. In a recent study, the growth of Ornithopus compressus (ORN) in acidic soil doubled shoot weight, increased P contents and decreased shoot Mn in successive wheat crops. T...
Diversity of Native Arbuscular Mycorrhiza Extraradical Mycelium Influences Anti...
Faria, J. M. S.; Pinto, Ana Paula; Teixeira, Dora; Brito, Isabel; Carvalho, MárioSustainable agricultural practices based on the development of native arbuscular mycorrhizal fungi (AMF) can improve crop growth and stress tolerance in acidic soils with manganese toxicity. The beneficial effects are stronger when crops are colonized early in development by an intact extraradical mycelium (ERM), but are dependent on AMF assemblage. In wheat colonized by AMF associated to Lolium rigidum L. (LOL...
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...
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.
Toxic levels of manganese in an acidic Cambisol alters antioxidant enzymes acti...
Faria, Jorge M. S.; Teixeira, Dora; Pinto, Ana Paula; Brito, Isabel; Barrulas, Pedro; Alho, Luis; Carvalho, MárioIn the Montado system, in Portuguese Alentejo region, some Eutric Cambisols are known to promote manganese (Mn) toxicity in wheat. Variation on bioavailable Mn concentration depends on soil acidity, which can be increased by natural events (e.g. waterlogging) or human activity (e.g. excess use of chemical fertilizers). The effect of increasing soil Mn on crop element uptake, element distribution and oxidative s...
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...