A5081084511- Plant Pathogens and Resistance
- Plant Pathogens and Fungal Diseases
- Yeasts and Rust Fungi Studies
- Plant and Fungal Interactions Research
- Mediterranean and Iberian flora and fauna
- Plant Disease Resistance and Genetics
- Mycorrhizal Fungi and Plant Interactions
- Environmental DNA in Biodiversity Studies
University of Sassari
2020-2025
Phytophthora is a long-established, well known and globally important genus of plant pathogens. Phylogenetic evidence has shown that the biologically distinct, obligate biotrophic downy mildews evolved from at least twice. Since, cladistically, this renders ‘paraphyletic’, it been proposed evolutionary clades be split into multiple genera (Runge et al. 2011; Crous 2021; Thines 2023; 2024). In letter, we review arguments for retention generic name with broad circumscription made by Brasier...
Cork oak forests are of immense importance in terms economic, cultural, and ecological value the Mediterranean regions. Since beginning 20th century, these ecosystems have been threatened by several factors, including human intervention, climate change, wildfires, pathogens, pests. Several studies demonstrated primary role oomycete Phytophthora cinnamomi Ronds widespread decline cork oaks Portugal, Spain, southern France, Italy, although other congeneric species also occasionally associated....
Since 1999, an unusual Phytophthora species has repeatedly been found associated with stem lesions and root collar rot on young olive trees in Southern Italy. In all cases, this was obtained from recently established commercial plantations or nursery plants. Morphologically, the isolates were characterized by abundant production of caducous non-papillate conidia-like sporangia (pseudoconidia) papillate a short pedicel, resembling P. palmivora var. heterocystica. Additional similar features...
Ink disease, caused by Phytophthora spp., represents a serious threat to sweet chestnuts throughout their distribution area. Among the control strategies, new perspectives have been offered using potassium phosphonate, which indirectly controls diseases acting on both host physiology and host-pathogen interactions. In this study, we tested in planta effectiveness of trunk injection with K-phosphonate against seven different species associated ink disease. For two most aggressive species, P....
Cork oak (Quercus suber L.) is an evergreen tree native to SW Europe and NW Africa. It covers 2·106 ha in the western Mediterranean basin, forms heterogeneous forest ecosystems represents important source of income derived from cork production. While Iberia, Italy, Tunisia Algeria, drought several endemic pathogens have been associated with decline (Moricca et al. 2016; Smahi 2017), Morocco there no evidence, apart overgrazing human intervention (Fennane Rejdali 2015), a pathogen decline. In...
Abstract Wild olive represents one of the most iconic woody plants in Mediterranean Basin. This slow‐growing evergreen tree is characteristic sclerophyll vegetation, extremely tolerant to drought, salinity and diseases, thus commonly used as rootstock for grafting cultivated varieties. Since 2022, extensive dieback mortality wild trees have been observed Sardinia, Italy. Affected showed leaf chlorosis, wilting, defoliation, shoot blight epicormic shoots, often associated with root rot...
Wild olive (Olea europaea var. sylvestris) is a sclerophyllous drought-tolerant tree native to the Mediterranean basin, which used as hardy and disease-resistant rootstock on scions of cultivated varieties are grafted (Breton et al., 2006). In Sardinia, Italy, wild significant component agroforestry landscape, its ancient origin proven by presence several millennial trees. March 2022, extensive dieback mortality trees were observed in an area c. 200 ha, located 5 km south from Paulilatino...