9 documents found, page 1 of 1
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...
Wheat Shoot Al, Fe, Mn and Zn Levels Are Influenced by Arbuscular Mycorrhiza Ex...
Faria, J. M. S.; Teixeira, D. M.; Pinto, A. P.; Brito, I.; Barrulas, P.; Carvalho, M.In the present study, the levels of Al, Fe, Mn and Zn in wheat shoots were quantified, by inductively coupled plasma mass spectrometry (ICP-MS). Wheat was grown in an acidic soil with toxic levels of Mn and with intact or disrupted extraradical mycelium (ERM) as the arbuscular mycorrhizal fungi (AMF) inoculum source, resulting from the previous growth of O. compressus. In the presence of an intact ERM, toxic Mn...
Arbuscular Mycorrhiza Extraradical Mycelium Promotes Si and Mn Subcellular Redi...
Faria, J. M. S.; Teixeira, D. M.; Brito, I.; Barrulas, P.; Pinto, A. P.; Carvalho, M.Manganese (Mn) and aluminum (Al) toxicities are serious edaphic limitations to crop production in acidic soils. Excess Mn can be countered using a stress-adapted soil microbiota that establish symbiotic relationships with native plants. The arbuscular mycorrhizal fungi (AMF) associated with Lolium rigidum L. develop extraradical mycelia (ERM) that quickly colonize wheat and lead to greater shoot growth by promo...
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...
Manganese uptake to wheat shoot meristems is differentially influenced by arbus...
Faria, J. M. S.; Teixeira, D. M.; Ferreira, D.; Barrulas, P.; Brito, I.; Pinto, A. P.; Carvalho, M.Soil acidity is a strong promoter of the bioavailability of Al, Fe, and Mn, whose concentrations can sometimes reach toxic levels for plants. In agricultural soils, the use of arbuscular mycorrhizal fungi (AMF) has shown a protective influence on wheat growth under Mn toxicity. The intact extraradical mycelium (ERM) promotes faster AMF colonization, leading to a higher wheat shoot weight, lower Mn uptake, and c...
Fungal communities of the Pine Wilt Disease Complex: Studying the Interaction o...
Vicente, C. S. L.; Soares, Miguel; Faria, J. M. S.; Margarida, Espada; Manuel, Mota; Filomena, Nóbrega; Ana Paula, Ramos; Maria Lurdes, InácioConsidered one of the most devastating plant–parasitic nematodes worldwide, Bursaphelenchus xylophilus (commonly known as pinewood nematode, PWN) is the causal agent of the pine wilt disease in the Eurasian coniferous forests. This migratory parasitic nematode is carried by an insect vector (Monochamus spp.) into the host tree (Pinus species), where it can feed on parenchymal cells and reproduce massively, resu...
Bioactivity of Monoterpene Alcohols as an Indicator of Biopesticidal Essential ...
Faria, J. M. S.; Rusinque, Leidy; Vicente, C. S. L.; Inácio, Maria de LurdesThe application of pesticides remains one of the most efficient control methods for phytophagous parasites in crops. Essential oils (EOs) are complex mixtures of highly active compounds that can be used as biopesticides against plant parasitic nematodes. In the present work, the antinematodal activity of the monoterpene alcohols geraniol, linalool, menthol or -terpineol, which are generally found in high amoun...
The Protective Biochemical Properties of Arbuscular Mycorrhiza Extraradical Myc...
Faria, J. M. S.; Teixeira, D. M.; Pinto, A. P.; Brito, I.; Barrulas, P.; Carvalho, M.In 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 conditions and provide an earlier colonization of winter crops. This study evaluated if summer season conditions hindered the beneficial effects of w...
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...