Search results for "bio-indicateur"
showing 2 items of 2 documents
Stress-induced cytological and chemical adaptations in Cupressus plants from an urban area of Palermo (Italy)
2004
We studied stress-induced cytological and chemical adaptations in Cupressus pollens and needles from the area of Palermo (Sicily, Italy), in polluted and control sites (unpolluted) of urban and suburban areas. Pollen and needle chemical composition were investigated to provide an indicator of contamination of the trees, which were also examined structurally throughout one year. The concentration of particulate with lead was found to be significantly higher in plants at the polluted traffic site. Lead is one of the worst particulate pollutants in cities, especially in the winter season. In trees from the polluted site, all structural analysis revealed displasies. Structural changes, observed…
Contribution to the research of microbial and RedOx bio-indicators for the early characterisation of wood diseases in grapevines
2022
Grapevine trunk diseases, linked to pathogenic fungi whose mechanism of action is still poorly characterised, are responsible for grapevine decline in vineyards throughout the world, causing significant losses in productivity and yield in the wine sector. Given the current lack of effective solutions to stop the establishment of the disease and the development of symptoms, which are irreversible but often late in relation to the pathogenic infection, early diagnosis of these diseases is essential. Considering the grapevine holobiont, i.e. the grapevine and the microbiota interacting with, we hypothesise that early bio-indicators of diseases would make it possible to identify a disturbance i…