A5074991088- Forest Insect Ecology and Management
- Plant Pathogens and Fungal Diseases
- Yeasts and Rust Fungi Studies
- Phytochemical compounds biological activities
- Horticultural and Viticultural Research
- Fungal Biology and Applications
- Enzyme-mediated dye degradation
- Mycorrhizal Fungi and Plant Interactions
- Essential Oils and Antimicrobial Activity
- Entomopathogenic Microorganisms in Pest Control
- Plant Disease Resistance and Genetics
- Polysaccharides and Plant Cell Walls
- Plant tissue culture and regeneration
- Plant Disease Management Techniques
- Plant Physiology and Cultivation Studies
- Plant-Microbe Interactions and Immunity
- Plant and animal studies
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Plant pathogens and resistance mechanisms
- Plant Micronutrient Interactions and Effects
- Aluminum toxicity and tolerance in plants and animals
- melanin and skin pigmentation
- Dyeing and Modifying Textile Fibers
- Plant Surface Properties and Treatments
Institute for Sustainable Plant Protection
2017
University of Florence
2003-2016
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
2012
Istituto Sperimentale per la Zoologia Agraria
1999
Istituto per lo Studio e la Prevenzione Oncologica
1994
ABSTRACT Ni 2+ toxicity was evaluated in Triticum aestivum L. by its effects on root and shoot length, dry matter production water content. Over a threshold value of 20 mmol m −3 the degree increases as function concentration medium. ‐treated roots show enhanced lipid peroxidation; higher treatment (40mmol ) also leakage K + . In shoots, enhances both guaiacol syringaldazine extracellular peroxidase activity. The increase activity is associated with an phenolic contents shoots. observed...
Cerato-platanin (CP), a protein of about 12.4 kDa from Ceratocystis fimbriata f. sp. platani (Cfp), accumulated in the mycelium and was located cell walls Cfp ascospores, hyphae conidia suggesting that this had role forming fungal wall apart already known fact it is secreted early culture elicits phytoalexin synthesis and/or plant death. The finding obtained with three immunological techniques: quantitative ELISA which determines amount CP mycelium, an immunofluorescence assay, immunogold...
Cerato-platanin (CP), a protein of about 12.4 kDa from Ceratocystis fimbriata f. sp. platani (Cfp), accumulated in the mycelium and was located cell walls Cfp ascospores, hyphae conidia suggesting that this had role forming fungal wall apart already known fact it is secreted early culture elicits phytoalexin synthesis and/or plant death. The finding obtained with three immunological techniques: quantitative ELISA which determines amount CP mycelium, an immunofluorescence assay, immunogold...
Cerato-platanin (CP) is a protein produced by Ceratocystis platani, the causal agent of canker stain disease plane trees. CP first member 'cerato-platanin family', and its role as pathogen-associated molecular pattern (PAMP), inducing defence responses both in host nonhost plants, established. However, primary homologues fungal life remains unknown. In present work, we investigated regulation cp gene during vitro growth C. platani different conditions under effect potential stress factors....
We studied the involvement of phytotoxic hydrophobin cerato-ulmin (CU) in pathogenesis and virulence Dutch elm disease (DED) by expressing its encoding gene (cu) Ophiostoma quercus, a nonpathogenic species on closely related to DED pathogens O. ulmi novo-ulmi. The production toxin was quantitatively determined culture filtrates mycelial extracts transformants. Production CU vitro associated with ability cause typical symptoms, consisting foliar yellow wilting vascular tissue discoloration...
In Europe as in North America, elms are devastated by Dutch elm disease (DED), caused the alien ascomycete Ophiostoma novo-ulmi. Pathogen dispersal and transmission ensured local species of bark beetles, which established a novel association with fungus. Elm beetles also transport Geosmithia fungi genus that is found scolytids' galleries colonized O. Widespread horizontal gene transfer between novo-ulmi was recently observed. order to define relation these two DED pathosystem, from elm,...
The ascomycete Ceratocystis platani (Walter) Engelbrecht & Harrington is the causal agent of canker stain, most dangerous disease affecting plane tree. Cerato-platanin (CP) a protein elicitor from C. that acts as pathogen-associated molecular pattern (PAMP), eliciting defence responses in both host and non-host plants. Using leaves an experimental model, we compared capacity CP to cause alterations transcription level five Platanus acerifolia (Ait.) Willd. genes, three strictly related...
In the present paper we describe a new noncatalytic protein belonging to hydrophobin family, designated GEO1, purified from culture filtrate of Geosmithia pallida (Ascomycota: Hypocreales), and corresponding gene sequence. fungal genome, GEO1 was encoded by single-copy with 450 bp open reading frame interrupted 2 small introns whose primary translation product 109 amino acids long included 23 signal peptide. The mature had molecular mass 8111.75 Da theoretical pI 4.33. deduced acid sequence...
Phyllosticta ampelicida causes black rot disease of Vitis spp. Genetic homogeneity pathogen populations was investigated by analyzing the number haplotypes present in infected samples from Europe and America. The fungus identified an analysis internal transcribed spacer (ITS)1-ITS2 region, partial sequences β-tubulin calmodulin genes. nuclear microsatellites applied to strains confirmed existence a high degree genetic variability fungal populations, revealed four subpopulations, showed that...
Cerato-platanin (CP) is a purified protein isolated from the culture filtrate of ascomycete Ceratocystis fimbriata f. sp. platani (Cfp), causal agent canker stain disease plane. The responses cells/tissues plane leaves to CP was studied by light microscopy (LM) and transmission electron (TEM) using two experimental procedures. most significant occurred already at 24 h after treatments, were also visible at 48 h. main effects cause great increase in primary starch certain degree...
The time-course of polygalacturonase (PG) and pectin lyase (PNL) activities shown in vitro by several isolates belonging to the intersterile groups (IGs) S F Heterobasidion annosum are reported discussed in relation their mycelial growth changes pH viscosity medium they produce. IG-S, characterized a narrow host range, always produced low levels enzymatic activity. IG-F grew more abundantly and faster than IG-P IG-S. In nutrient containing as sole carbon source. PG activity shown per unit...
— Quercus pubescens, Q frainetto, ilex and robur were sprayed with ABS (sodium dodecyl benzenesulfonate, a surfactant often found in marine aerosols) over 2 growing seasons to test the effect of on leaf wax structure.Though all species affected, they dif- fered their tolerance ABS.The was also tested pollen quality ilex.Pol- len from declining apparently healthy individuals germinated cultures different con- centrations ABS.A negative germination tube length noted.The reduction...