73 documents found, page 1 of 8
Bacterial dynamics and exchange in plant-insect interactions
Cameirão, Cristina; Pereira, José Alberto; Tavares, Rui; Lino-Neto, Teresa; Baptista, PaulaIn nature, plants and insects engage in intricate interactions. Despite the increasing knowledge of the microbiomes of plants and insects, the extent to which they exchange and alter each other’s microbiomes remains unclear. In this work, the bacterial community associated with nymphs of Philaenus spumarius (Hemiptera: Aphrophoridae), the stems of Coleostephus myconis where the nymphs were feeding, and the foam...
Diversity, Composition, and Specificity of the Philaenus spumarius Bacteriome
Cameirão, Cristina; Costa, Daniela; Rufino, José; Pereira, J.A.; Lino-Neto, Teresa; Baptista, PaulaPhilaenus spumarius (Linnaeus, 1758) (Hemiptera, Aphrophoridae) was recently classified as a pest due to its ability to act as a vector of the phytopathogen Xylella fastidiosa. This insect has been reported to harbour several symbiotic bacteria that play essential roles in P. spumarius health and fitness. However, the factors driving bacterial assemblages remain largely unexplored. Here, the bacteriome associat...
Bioprospection of the bacterial β-myrcene-biotransforming trait in the rhizosphere
Castro, Pedro Miguel Soares; Soares, Filipa; Reis, Francisca Rodrigues; Lino-Neto, Teresa; Santos, Pedro M.The biocatalysis of β-myrcene into value-added compounds, with enhanced organoleptic/therapeutic properties, may be performed by resorting to specialized enzymatic machinery of β-myrcene-biotransforming bacteria. Few β-myrcene-biotransforming bacteria have been studied, limiting the diversity of genetic modules/catabolic pathways available for biotechnological research. In our model Pseudomonas sp. strain M1, t...
Deciphering plant health status: the link between secondary metabolites, fungal...
Gomes, Teresa; Pereira, J.A.; Moya-Larano, Jordi; Poveda, Jorge; Lino-Neto, Teresa; Baptista, PaulaPlant-associated microorganisms are increasingly recognized to play key roles in host health. Among several strategies, associated microorganisms can promote the production of specific metabolites by their hosts. However, there is still a huge gap in the understanding of such mechanisms in plant-microorganism interaction. Here, we want to determine whether different levels of olive leaf spot (OLS) disease incid...
Potential of the endophyte Penicillium commune in the control of olive anthracn...
Silva, Sofia; Costa, Helgeneusa Neto da; Lopes, Teresa; Ramos, Vitor; Rodrigues, Nuno; Pereira, J.A.; Lino-Neto, Teresa; Baptista, PaulaOlive anthracnose, caused by several Colletotrichum species, is the most economically harmful fruit disease of the olive crop. This work aimed to evaluate the ability of the endophyte Penicillium commune CIMO 14FM009 to protect the olive tree against Colletotrichum nymphaeae via induction of plant volatile organic compounds (VOCs). Accordingly, olive tree branches were inoculated with the endophyte and one mont...
The influence of bioclimate on soil microbial communities of cork oak
Costa, Daniela; Tavares, Rui Manuel; Baptista, Paula; Lino-Neto, TeresaBackground: Soil microbiomes are important to maintain soil processes in forests and confer protection to plants against abiotic and biotic stresses. These microbiomes can be affected by environmental changes. In this work, soil microbial communities from different cork oak Portuguese forests under different edaphoclimatic conditions were described by using a metabarcoding strategy targeting ITS2 and 16S barcod...
Olive fungal epiphytic communities are affected by their maturation stage
Castro, Joana; Costa, Daniela; Tavares, Rui Manuel; Baptista, Paula; Lino-Neto, TeresaThe phyllosphere comprises the aerial parts of plants and is colonized by a great diversity of microorganisms, either growing inside (as endophytes) or on the surface (as epiphytes) of plant tissues. The factors that structure the diversity of epiphytes and the importance of these microorganisms for host plant protection have been less studied when compared to the case of endophytes. In this work, the epiphytic...
Phylogenetic analysis and genetic diversity of the xylariaceous ascomycete Bisc...
Costa, Daniela; Ramos, Vitor; Tavares, Rui Manuel; Baptista, Paula; Lino-Neto, TeresaCork oak is a tree species with ecological importance that contributes to economic and social development in the Mediterranean region. Cork oak decline is a major concern for forest sustainability and has negative impacts on cork oak growth and production. This event has been increasingly reported in the last decades and seems to be related with climate changes. Biscogniauxia mediterranea is an endophytic fungu...
Distinguishing allies from enemies—a way for a new green revolution
Lino-Neto, Teresa; Baptista, PaulaPlants are continually interacting in different ways and levels with microbes, resulting in direct or indirect effects on plant development and fitness. Many plant–microbe interactions are beneficial and promote plant growth and development, while others have harmful effects and cause plant diseases. Given the permanent and simultaneous contact with beneficial and harmful microbes, plants should avoid being inf...
In vitro interactions between the ectomycorrhizal Pisolithus tinctorius and the...
Baptista, Paula; Pinho, P. Guedes de; Moreira, Nathalie; Malheiro, Ricardo; Reis, Francisca; Padrão, Jorge; Tavares, Rui Manuel; Lino-Neto, TeresaEctomycorrhizal fungi are crucial for forests sustainability. For Castanea sativa, ectomycorrhizal fungus Pisolithus tinctorius is an important mutualist partner. Saprotrophic fungi Hypholoma fasciculare, although used for biocontrol of Armillaria root disease, it negatively affected the interaction between the P. tinctorius and plant host roots, by compromise the formation of P. tinctorius-C. sativa mycorrhiza...