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Occurrence of Phytophthora species in oak stands in Italy and their association with declining oak trees
Summary Soil-borne species of Phytophthora were isolated from 19 of 30 examined oak forest areas in Italy. The frequency of isolated Phytophthora spp. (35.2%) was significantly correlated with soil…
Differences in composition of endophytic mycobiota in twigs and leaves of healthy and declining Quercus species in Italy
Summary The composition of the endophytic fungal assemblages in Quercus cerris, Q. pubescens and Q. robur, three oak species most susceptible to decline, was investigated in Fagare ` (Padova),…
Fungal endophytes in Mediterranean oak forests: a lesson from Discula quercina.
It is postulated here that climatic factors can change the endophytic nature of D. quercina, turning it into a weak pathogen or an opportunistic invader of senescing and indeed healthy trees, in an unstable equilibrium between transient mutualism/neutralism and latent pathogenesis.
Histological studies on the mycoparasitism of Cladosporium tenuissimum on urediniospores of Uromyces appendiculatus.
- G. Assante, D. Maffi, M. Saracchi, G. Farina, S. Moricca, A. Ragazzi
- Biology, MedicineMycological research
- 1 February 2004
Interactions between the mycoparasite Cladosporium tenuissimum and the bean rust Uromyces appendiculatus were studied through light and electron microscopy in vitro at the host-parasite interface, providing additional observations on a genus besides Melampsora and Cronartium.
Species- and organ-specificity in endophytes colonizing healthy and declining Mediterranean oaks
Understanding is advanced of the role of some pathogenic fungal endophytes in Mediterranean oak forests and how interaction between plant species and the environment and continued competitive interaction between endophyte species may have led to niche diversification.
Use of RFLP and SSCP analysis to differentiate the pine rusts Cronartium flaccidum and Peridermium pini
Results obtained in this trial indicate that PCR-RFLP and PCR-SSCP can be used as simple, speedy taxonomic tools for elucidating relationships among related organisms.
Secondary mould metabolites of Cladosporium tenuissimum, a hyperparasite of rust fungi.
The oak decline: a new problem in Italy.
The Authors observed, in Italy, isolated and grouped trees of the genus Quercus that declined over one or more vegetative seasons; the spread was very fast; in fact the trees declined in the course of 2–3 Vegetative seasons.
Endemic and Emerging Pathogens Threatening Cork Oak Trees: Management Options for Conserving a Unique Forest Ecosystem.
- S. Moricca, B. T. Linaldeddu, B. Ginetti, B. Scanu, A. Franceschini, A. Ragazzi
- Environmental SciencePlant disease
- 22 August 2016
The aim of this review is to analyze the recent advances achieved regarding the bio-ecology of the endemic and emerging pathogens that threaten cork oak trees with particular emphasis on the species more directly involved in oak decline.
Disease incidence and vessel anatomy in cotton plants infected with Fusarium oxysporum f. sp. vasinfectum under salinity stress
The relation between disease incidence, diameter and number of xylem vessels in cotton plants (Gossypium hirsutum L.) grown under salinity stress and in the presence of FOV was discussed.