A5040984978- Insect-Plant Interactions and Control
- Allelopathy and phytotoxic interactions
- Plant Stress Responses and Tolerance
- Plant-Microbe Interactions and Immunity
- Plant biochemistry and biosynthesis
- Plant Pathogens and Fungal Diseases
- Plant and animal studies
- Plant Parasitism and Resistance
- Photosynthetic Processes and Mechanisms
- Insect and Pesticide Research
- Algal biology and biofuel production
- Plant tissue culture and regeneration
- Essential Oils and Antimicrobial Activity
- Insect and Arachnid Ecology and Behavior
- Gas Sensing Nanomaterials and Sensors
- Plant responses to elevated CO2
- Biochemical effects in animals
- Advanced Chemical Sensor Technologies
- Diet, Metabolism, and Disease
- Anodic Oxide Films and Nanostructures
- Alkaloids: synthesis and pharmacology
- Neurological diseases and metabolism
- Plant Surface Properties and Treatments
- Signaling Pathways in Disease
- Advances in Cucurbitaceae Research
University of Turin
2007-2023
Novo Nordisk Foundation
2023
University of Copenhagen
2023
University of Milan
2016
ENEA Casaccia Research Centre
2013
National Agency for New Technologies, Energy and Sustainable Economic Development
2013
Max Planck Institute for Chemical Ecology
2004-2006
In response to herbivore (Spodoptera littoralis) attack, lima bean (Phaseolus lunatus) leaves produced hydrogen peroxide (H(2)O(2)) in concentrations that were higher when compared mechanically damaged (MD) leaves. Cellular and subcellular localization analyses revealed H(2)O(2) was mainly localized MD herbivore-wounded (HW) zones spread throughout the veins tissues. Preferentially, found cell walls of spongy mesophyll cells facing intercellular spaces, even though confocal laser scanning...
Fusarium oxysporum MSA35 [wild-type (WT) strain] is an antagonistic that lives in association with a consortium of bacteria belonging to the genera Serratia, Achromobacter, Bacillus and Stenotrophomonas Italian soil suppressive wilt. Typing experiments virulence tests provided evidence F. isolate when cured bacterial symbionts [the (CU) form], pathogenic, causing wilt symptoms identical those caused by f. sp. lactucae. Here, we demonstrate small volatile organic compounds (VOCs) emitted from...
Abstract Membrane potentials (V m) and intracellular calcium variations were studied in Lima bean (Phaseolus lunatus) leaves when the Mediterranean climbing cutworm (Spodoptera littoralis) was attacking plants. In addition to effect of feeding insect impact several N-acyl Glns (volicitin, N-palmitoyl-Gln, N-linolenoyl-Gln) from larval oral secretion studied. The results showed that early events upon herbivore attack were: a) a strong V m depolarization at bite zone an isotropic wave...
The function of fungal volatiles in fungal-plant interactions is poorly understood. aim here was to address this lack knowledge, focusing on truffles, ectomycorrhizal fungi that are highly appreciated for their aroma. effect released by truffles tested Arabidopsis thaliana a closed chamber bioassay. produced Tuber melanosporum, indicum and borchii fruiting bodies inhibited A. terms root length cotyledon leaf size, some cases induced bleaching the seedlings, thus indicating toxicity. Ten...
Plant volatiles emitted by Medicago truncatula in response to feeding larvae of Spodoptera exigua are composed a complex blend terpenoids. The cDNAs three terpene synthases (TPSs), which contribute the terpenoids, were cloned from M. truncatula. Their functional characterization proved MtTPS1 be β-caryophyllene synthase and MtTPS5 multi-product sesquiterpene synthase. MtTPS3 encodes bifunctional enzyme producing (E)-nerolidol geranyllinalool (precursors C11 C16 homoterpenes) different prenyl...
Fusarium oxysporum MSA 35 [wild-type (WT) strain] is a nonpathogenic strain, which exhibits antagonistic activity to plant pathogenic F. isolates. The fungus lives in association with consortium of ectosymbiotic bacteria. WT when cured the bacterial symbionts [the (CU) form], pathogenic, causing wilt symptoms similar those f. sp. lactucae. Both and CU strains produce microbial volatile organic compounds (MVOCs), but different spectrum. In vitro dual culture assays were used assess effects...
Abstract Background Plant Ca 2+ signals are involved in a wide array of intracellular signaling pathways after pest invasion. -binding sensory proteins such as -dependent protein kinases (CPKs) have been predicted to mediate the following influx insect herbivory. However, until now this prediction was not testable. Results To investigate roles CPKs play herbivore response-signaling pathway, we screened characteristics Arabidopsis CPK mutants damaged by feeding generalist herbivore,...
Background Ginkgo biloba (Ginkgoaceae) is one of the most ancient living seed plants and regarded as a fossil. G. has broad spectrum resistance or tolerance to many pathogens herbivores because presence toxic leaf compounds. Little known about early late events occurring in upon herbivory. The aim this study was assess whether herbivory by generalist Spodoptera littoralis able induce signaling direct defense evaluating responses. Methodology/Principal Findings Early responses mechanically...
Below ground and above plant-insect-microorganism interactions are complex regulate most of the developmental responses important crop plants such as tomato. We investigated influence root colonization by a nonmycorrhizal plant-growth-promoting fungus on direct indirect defenses tomato plant against aphids. The multitrophic system included Solanum lycopersicum ('San Marzano nano'), root-associated biocontrol Trichoderma longibrachiatum strain MK1, aphid Macrosiphum euphorbiae (a pest),...
Interactions between herbivorous insects and plants storing terpenoids are poorly understood. This study describes the ability of Chrysolina herbacea to use volatiles emitted by undamaged Mentha aquatica as attractants plant's response herbivory, which involves production deterrent molecules. Emitted plant were analyzed GC-MS. The insect's was tested Y-tube olfactometer bioassays. Total RNA extracted from control plants, mechanically damaged leaves, leaves herbivores. terpenoid quantitative...
Astaxanthin is a ketocarotenoid with high antioxidant power used in different fields as healthcare, food/feed supplementation and pigmenting agent aquaculture. Primary producers of astaxanthin are some species microalgae, unicellular photosynthetic organisms, Haematococcus lacustris. production by cultivation lacustris costly due to low biomass productivity, risk contamination the requirement downstream extraction processes, causing an extremely price on market. Some microalgae also primary...
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic disease; however, no specific pharmacological therapy has yet been approved for this condition. Plant-derived extracts can be an important source development new drugs. The aim study was to investigate effects (E)-β-caryophyllene (BCP), a phytocannabinoid recently found beneficial against metabolic diseases, on HepG2 steatotic hepatocytes. Using fluorescence-based lipid quantification assay and GC-MS analysis, we...
Abstract The arsenic hyper-accumulating fern, Pteris vittata L., was studied to investigate the behavior of lower plants in response both mechanical (MW) and herbivore wounding (HW). To this end, cotton leaf worm Spodoptera littoralis fed on P. volatile organic compound (VOC) emission detected from fern's head space by using solid phase micro extraction (SPME) analyzed GC-MS. Controls were represented unwounded MW ferns. fluorescent probe Amplex red used oxidative burst due HW confocal laser...
• An integrated approach has been used to obtain an understanding of the molecular and chemical mechanisms underlying resistance aphids in cherry-like tomato (Solanum lycopersicum) landraces from Campania region (southern Italy). The aphid–parasitoid system Macrosiphum euphorbiae–Aphidius ervi was describe levels against two accessions (AN5, AN7) exhibiting high yield quality traits lacking Mi gene. Aphid development reproduction, flight response by aphid parasitoid A. ervi, gas...
Myrmica ant colonies host numerous insect species, including the larvae of Maculinea butterflies and Microdon myrmicae hoverflies. Little is known about interspecific relationships among these social parasites their ants occurring in sympatric populations. We investigated communities to assess strategies allowing them share same pool resources (i.e. colonies). The present study was carried out at five sites inhabited by different parasite communities, each comprising varying proportions...
Phytopathogens are well known for their devastating activity that causes worldwide significant crop losses. However, exploitation welfare is relatively unknown. Here, we show the microbial volatile organic compound (mVOC) profile of bacterial phytopathogen, Erwinia amylovora, enhances Arabidopsis thaliana shoot and root growth. GC-MS head-space analyses revealed presence typical volatiles, including 1-nonanol 1-dodecanol. E. amylovora mVOCs triggered early signaling events plasma...