177 documents found, page 1 of 18
Arbuscular Mycorrhiza Extraradical Mycelium Promotes Si and Mn Subcellular Redi...
Faria, Jorge M.S.; Conceição, Taiana A; Teixeira, Dora Martins; Brito, Isabel; Barrulas, Pedro; Pinto, Ana Paula; Vaz, Margarida; Carvalho, MárioAbstract: 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 growt...
Wheat Shoot Al, Fe, Mn and Zn Levels Are Influenced by Arbuscular Mycorrhiza Ex...
Faria, Jorge M.S.; Teixeira, Dora Martins; Pinto, Ana Paula; Barrulas, Pedro; Brito, Isabel; Carvalho, MárioIn 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 ...
Impact of Deferred Versus Continuous Sheep Grazing on Soil Compaction in the Me...
Serrano, João; Carreira, Emanuel; Shahidian, Shakib; Carvalho, Mário; Marques da Silva, J.; L. Paniagua, L.; Moral, F.; Pereira, A.Deferred grazing (DG) consists in adapting the number of animals and the number of days grazed to the availability of pasture. Compared to continuous grazing (CG), which is based on a permanent and low stocking rate, DG is a management strategy that aims at optimizing the use of the resources available in the Mediterranean Montado ecosystem. This study with sheep grazing, carried out between 2019 and 2021 on a ...
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.
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...
Effect of Sheep Grazing, Stocking Rates and Dolomitic Limestone Application on ...
Carreira, Emanuel; Serrano, João; Pinto Gomes, Carlos; Shahidian, Shakib; Paniagua, Luis L.; Pilirito, Alexandre; Lopes de Castro, J.; Carvalho, MárioThe Montado is a complex agroforestry–pastoral ecosystem due to the interactions be‐ tween soil–pasture–trees–animals and climate. The typical Montado soil has an acidic pH and man‐ ganese toxicity, which affect the pastureʹs productivity and pasture floristic composition (PFC). The PFC, on the other hand, can also be influenced by the type and intensity of grazing, which can lead to significant decreases in th...
Effect of Sheep Grazing, Stocking Rates and Dolomitic Limestone Application on ...
Carreira, Emanuel; Serrano, João; Pinto-Gomes, Carlos; Shahidian, Shakib; Paniagua, Luís L.; Pilirito, Alexandre; Lopes Castro, José; Carvalho, MárioThe Montado is a complex agroforestry–pastoral ecosystem due to the interactions between soil–pasture–trees–animals and climate. The typical Montado soil has an acidic pH and manganese toxicity, which affect the pastureʹs productivity and pasture floristic composition (PFC). The PFC, on the other hand, can also be influenced by the type and intensity of grazing, which can lead to significant decreases in the am...
E ect of Tillage System and Cover Crop on Maize Mycorrhization and Presence of ...
Patanita, Mariana; Campos, Maria Doroteia; Félix, Maria; Carvalho, Mário; Brito, IsabelThe sustainability of agriculture requires the adoption of agricultural soil conservation practices with positive impacts on soil quality, which can promote beneficial soil microbiota like arbuscular mycorrhizal fungi (AMF) and its diversity. This study aims to assess the influence of the presence of intact extraradical mycelium as a preferential source of inoculum of the native AMF in order to guarantee a bett...
Managing the functional diversity of arbuscular mycorrhizal fungi for the susta...
Brito, Isabel; Carvalho, Mário; Goss, Michael J.Despite the wide range of benefits arbuscular mycorrhiza can confer, they are not usually considered in large-scale farming systems because the potential improvements in crop yields through the enhanced uptake of nutrients is a matter of debate and the advantages from the bio- protection afforded against biotic and abiotic stresses have not been adequately recognised. Research carried out by our group over the ...
Dairy Slurry Application to Stubble-Covered Soil: A Study on Sustainable Altern...
Silva, Arejacy António; Carvalho, Mário; Coutinho, João; Vasconcelos, Ernesto; Fangueiro, DavidThe development of sustainable application practices, which do not demand incorporation into the soil, is necessary to encourage slurry use in conservation agriculture (CA). Incorporation is the most common practice to reduce nitrogen losses from the applied slurry. However, in CA, soil disturbance must be avoided. Two experiments were conducted to evaluate strategies to reduce gaseous emissions from dairy slur...