Biscogniauxia mediterranea pdf download

Molecular phylogenetic studies within the xylariaceae based. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. To this purpose, two specific primers med1 and med2 were designed by comparison of sequences comprised between its1 and its4 generic primers of 21 isolates of b. The new isolate was identified as biscogniauxia mediterranea based on its15. Research article diversity of biscogniauxia mediterranea. Seven days colonies on pda of monoascospores isolates of biscogniauxia mediterranea from the stromas a and b surface and reverse. This disease, caused by either of two fungi, biscogniauxia atropunctata or b. Pdf first report of biscogniauxia mediterranea on english ash in. Biscogniauxia canker or dieback formerly called hypoxylon canker or dieback is a common contributor to poor health and decay in a wide range of tree species balbalian and henn 2014. Biscogniauxia mediterranea, botryosphaeria stevensii. Response of endophytic biscogniauxia mediterranea to. Realtime pcr, based on taqman chemistry, was used to detect biscogniauxia mediterranea, a fungal pathogen that after a long endophytic phase may cause charcoal disease in oak trees.

Dec 24, 2001 view enhanced pdf access article on wiley online library html view download pdf for offline viewing. Biscogniauxia mediterranea is a xylariaceous ascomycete responsible for charcoal disease, the most frequent disease of cork oak in the mediterranean basin. Mar 16, 2020 biscogniauxia mediterranea was recently reported on erica multiflora l. An endophytic fungus biscogniauxia capnodes was isolated from a popular edible fruit averrhoa carambola.

Pogostol was also isolated from this fungus, and in light of our spectroscopic data, its structure was revised and. This report introduces wild almond amygdalus scoparia as a new host species for b. Biscogniauxia mediterranea summary stroma erumpent through bark, 2070 mm long and 540 mm broad, 0. The pathogen was consistently reisolated from the infected tissues. After 30 days, necrotic lesions developed on all inoculated tissues. Endophytic behaviour of biscogniauxia mediterranea, the causal agent of charcoal disease of oak, was studied over two growing seasons on quercus cerris in a forest in central italy. The journal publishes papers that describe translational and applied research focusing on practical aspects of disease diagnosis, development, and management in agricultural and horticultural crops. Biscogniauxia species are known plant pathogens, which typically are bark parasites and are able to degrade major components of the wood, cellulose and lignin. Pdf molecular diagnostics of biscogniauxia mediterranea. A collection of monoascosporic cultures isolated from single. Isocoumarins and dihydroisocoumarins from the endophytic. A er h the ascospores discharges on the dishes were collected, and single ascospores. Oct 25, 2016 biscogniauxia mediterranea causes charcoal disease on quercus castanifolia, q.

Biscogniauxia mediterranea is a xylariaceous ascomycete responsible for charcoal disease, the. Biscogniauxia mediterranea associated with cork oak quercus. Biscogniauxone, a new isopyrrolonaphthoquinone compound. Biscogniauxone, a new isopyrrolonaphthoquinone compound from. Pdf caratterizzazione delle comunita fungine endofitiche. Charcoal canker biscogniauxia mediterranea in cork oak. Biscogniauxia mediterranea is well known as the causative agent of charcoal canker in cork oak and is a serious problem in portugal. Realtime pcr detection of biscogniauxia mediterranea in. This is the first report on the morphological and genetic diversity of b. Erica multiflora is one of the most valuable plants in the mediterranean region.

Growth and physiological responses of quercus brantii. Portugal due to its high environmental, social, and econom ical value. In portugal, this disease is widespread on adult declining trees but nowadays it increasingly affects young trees and exhibits atypical symptoms, leading to the hypothesis that some change in the fungus may have occurred. The pathogen has been considered a secondary invader that attacks only stressed hosts. To our knowledge, this is the first report of canker disease caused by biscogniauxia mediterranea on erica multiflora in tunisia. Diversity of biscogniauxia mediterranea within single stromata. The genus was circumscribed by otto kuntze in 1891. Kuntze occurred in the clusters away from the dead trees.

Pdf in july 2010, extensive decline of english ash fraxinus excelsior l. Colony of biscogniauxia mediterranea strain lf657 grown on wickerham agar 26 c, 10 days. The properties and the production of new metabolites from the fungal strain lf657 isolated from the herodotes deep 2800 m depth in the mediterranean sea are reported in this study. The fungus develops endophytically in the hosts becoming pathogenic under stress conditions. Diversity of biscogniauxia mediterranea within single stromata on. Spatial pattern and disease severity of charcoal canker in. The fungus was fermented in potato dextrose broth for 3 weeks, and then the culture broth and mycelium were extracted with ethyl acetate.

Diversity of biscogniauxia mediterranea within single. Biscogniauxia is a genus of fungi in the family xylariaceae. Development of a polymerase chain reaction pcr assay for. Jun 17, 2019 control branches received sterile agar plugs. Biscogniauxia mediterranea was the most frequently isolated fungus. Table of contents page 2 journal of mycology hindawi. Diversity and antifungal activity of the endophytic fungi associated with the native medicinal cactus opuntia humifusa cactaceae from the united states. Biscogniauxia mediterranea is reported from africa, central america, europe, u.

Pdf first report of biscogniauxia mediterranea on english. Biscogniauxia mediterranea associated with cork oak. It is caused by biscogniauxia mediterranea, a wide dispersed endophytic fungus. First report of biscogniauxia mediterranea causing canker on. Biscopyran, a phytotoxic hexasubstituted pyranopyran produced by. Xylaranone, a previously unreported guaiane sesquiterpene along with the known terpenoid xylaranol b and the two mellein derivatives 3,5dimethyl8methoxy3,4dihydroisocoumarin and 3,5dimethyl8hydroxy3,4dihydroisocoumarin were isolated from biscogniauxia nummularia. Pdf diversity of biscogniauxia mediterranea within single.

Guaiane sesquiterpenes from biscogniauxia nummularia. First report of charcoal disease caused by biscogniauxia. However, little is known regarding this fungus in north africa. Charcoal canker, caused by the fungus biscogniauxia mediterranea, is one of the most frequent diseases of cork oak in portugal. First report of charcoal disease of oak biscogniauxia mediterranea on quercus spp. Pdf first report of charcoal disease of oak biscogniauxia. The present work reports the development of a pcr assay to detect the ascomycete biscogniauxia mediterranea in asymptomatic tissues of quercus cerris.

Pdf factors affecting the dispersion of biscogniauxia. First report of biscogniauxia mediterranea on english ash in italy. A new approach in the monitoring of the phytosanitary. It is widely used in medicine because of its effective antiviral. Since 2008, severe and widespread tree decline and mortality has been observed at the main growing quercus ilex l. Oneyearold cork oak quercus suber and turkey oak q. Wu, bin, wiese, jutta, schmaljohann, rolf and imhoff, johannes f. A new isopyrrolonaphthoquinone with inhibitory activity against glycogen synthase kinase gsk3.

The plant doctor biscogniauxia hypoxylon dieback of. Jan, 2016 biscogniauxia mediterranea is one of the most frequent fungal pathogens involved in cork oak decline in the mediterranean basin, causing charcoal canker. Pathogenicity of fungi isolated from quercus suber in. The genus biscogniauxia, a member of the family xylariaceae, has a worldwide distribution with over 50 taxa recognised. First report of biscogniauxia mediterranea causing canker on erica. Molecular diagnostics of biscogniauxia mediterranea, the causal agent of charcoal rot disease on oak using speciesspecific primers. Isolation of the fungus from asymptomatic tissues varied with tissue type, period of sampling and year. Isolation of the fungus from asymptomatic tissues varied. Biscogniauxia dieback formerly called hypoxylon canker or dieback is a common cause of oak dieback in mississippi. This disease is caused by several species of fungi in the genus biscogniauxia formerly hypoxylon. All fungi fungi and lichens of great britain and ireland. Pdf diversity of biscogniauxia mediterranea within. Diversity of biscogniauxia mediterranea within single stromata on cork oak.