Luisa Ghelardini

ORCID: 0000-0002-3180-4226
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About
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Research Areas
  • Forest Insect Ecology and Management
  • Plant Pathogens and Fungal Diseases
  • Plant and Fungal Interactions Research
  • Mycorrhizal Fungi and Plant Interactions
  • Horticultural and Viticultural Research
  • Insect-Plant Interactions and Control
  • Plant Pathogenic Bacteria Studies
  • Plant Pathogens and Resistance
  • Forest Ecology and Biodiversity Studies
  • Yeasts and Rust Fungi Studies
  • Forest ecology and management
  • Botany and Plant Ecology Studies
  • Bioenergy crop production and management
  • Phytoplasmas and Hemiptera pathogens
  • Plant Reproductive Biology
  • Plant-Microbe Interactions and Immunity
  • Genomics and Phylogenetic Studies
  • Mycotoxins in Agriculture and Food
  • Mediterranean and Iberian flora and fauna
  • Plant Water Relations and Carbon Dynamics
  • Plant Physiology and Cultivation Studies
  • Biosensors and Analytical Detection
  • Tree-ring climate responses
  • Plant responses to elevated CO2
  • Studies on Chitinases and Chitosanases

University of Florence
1990-2025

Institute for Sustainable Plant Protection
2009-2021

National Research Council
2014-2021

Mendel University in Brno
2019

Swedish University of Agricultural Sciences
2007-2014

National Academies of Sciences, Engineering, and Medicine
2014

Istituto per le Piante da Legno e l'Ambiente
2007

Summary A large database of invasive forest pathogens ( IFP s) was developed to investigate the patterns and determinants invasion in Europe. Detailed taxonomic biological information on species combined with country‐specific data land use, climate, time since identify invasiveness, differentiate class environments which share territorial climate features associated a susceptibility invasion. s increased exponentially last four decades. Until 1919, already present moved across Then, new were...

10.1111/j.1469-8137.2012.04364.x article EN New Phytologist 2012-10-11

Fusarium circinatum, the causal agent of pine pitch canker (PPC), is currently one most important threats Pinus spp. globally. This pathogen known in many pine-growing regions, including natural and planted forests, can affect all life stages trees, from emerging seedlings to mature trees. Despite importance PPC, global distribution F. circinatum poorly documented, this problem also true hosts within countries that are affected. The aim study was review with a particular focus on Europe. We...

10.3390/f11070724 article EN Forests 2020-07-01

Aim The most common pathway for the movement of plant pests across borders is horticultural trade in live plants, especially potted ornamentals. Soilborne pathogens, possibly alien and potentially invasive, have a higher possibility surviving transportation becoming established at their destination if they are carried plants. European Union (EU) has an open-door phytosanitary system, under which any that not specifically regulated can be imported. Inspections focussed on small number...

10.1111/ddi.12347 article EN Diversity and Distributions 2015-07-14

Background and AimsThe major objective was to identify plant traits functionally important for optimization of shoot growth nitrogen (N) economy under drought. Although increased leaf N content (area basis) has been observed in dry environments theory predicts be an acclimation drought, experimental evidence the prediction is rare.

10.1093/aob/mcr227 article EN cc-by-nc Annals of Botany 2011-09-06

Ceratocystis platani is the causal agent of canker stain plane trees, a lethal disease able to kill mature trees in one or two successive growing seasons. The pathogen quarantine organism and has negative impact on anthropogenic natural populations trees. Contaminated sawdust produced during pruning sanitation fellings can contribute spread. goal this study was design rapid, real-time quantitative PCR assay detect C. airborne inoculum. Airborne inoculum traps (AITs) were placed an urban...

10.1128/aem.01484-13 article EN Applied and Environmental Microbiology 2013-06-29

European forests are threatened by increasing numbers of invasive pests and pathogens. Over the past century, Lecanosticta acicola, a foliar pathogen predominantly Pinus spp., has expanded its range globally, is in impact. acicola causes brown spot needle blight, resulting premature defoliation, reduced growth, mortality some hosts. Originating from southern regions North American, it devastated USA's states early twentieth 1942 was discovered Spain. Derived Euphresco project...

10.1016/j.foreco.2023.120847 article EN cc-by-nc-nd Forest Ecology and Management 2023-03-23

ABSTRACT In the spring 2018, a leaf disease including light and necrotic spots with irregular edges surrounded by chlorotic halos was detected on common mallow in Jiroft County (Kerman Province, Iran). A bacterium‐forming cream‐coloured mucoid colonies King's B agar medium consistently isolated fitting of traits genus Pseudomonas . Isolated strains caused leaves pathogenicity test that identical to natural field symptoms belonged viridiflava based phenotypic characteristics LOPAT tests. Two...

10.1111/jph.70009 article EN Journal of Phytopathology 2025-01-01

ABSTRACT In May 2016, leaf spot symptoms were observed on five‐year‐old common fig trees, located in Sari County (Mazandaran Province). Symptoms comprised irregular and brown necrotic spots, surrounded by yellow halos. Yellow‐coloured, mucoid bacterial colonies consistently isolated from the infected samples. Bacterial isolates identified using biochemical, molecular pathogenicity assays. All showed identical biochemical characteristics typical of genus Pantoea . Furthermore, based...

10.1111/jph.70023 article EN Journal of Phytopathology 2025-01-01

European elms (Ulmus glabra Huds., Ulmus laevis Pall. and minor Mill.) have been severely damaged are still endangered by an alien hypervirulent pathogen, Ophiostoma ulmi s. l., agent of the Dutch elm disease (DED). Consequently, several ex situ clone collections established throughout Europe for breeding conservation. In this paper we summarise studies carried out within EU project RESGEN CT96-78, which launched EU-coordinated evaluation these collections. Our aim was to analyse variation...

10.3832/ifor0508-002 article EN cc-by-nc iForest - Biogeosciences and Forestry 2009-07-30

Dormancy release as influenced by duration of outdoor winter chilling in Florence (Italy) was studied under different photoperiodic and temperature treatments collected twigs two European (Ulmus glabra Huds. Ulmus minor Mill.) four Asian pumila L., parvifolia Jacq., macrocarpa Hance villosa Brandis) elm clones. Photoperiod had no effect on dormancy release, there evidence that photoperiod affected bud burst during quiescence the Thermal time (day degrees >0 °C) to decreased all clones with...

10.1093/treephys/tpp110 article EN Tree Physiology 2009-12-18

In woody plants from temperate regions, adaptation to the local climate results in annual cycles of growth and dormancy, optimal regulation these are critical for growth, long-term survival, competitive success. this study we have investigated genetic background phenology a Salix pedigree by assessing phenotypic variation cessation, leaf senescence bud burst different years environments. A previously constructed linkage map using same anchored annotated genome P. trichocarpa was improved...

10.1186/1471-2229-14-31 article EN cc-by BMC Plant Biology 2014-01-17

Abstract The earth's system is currently experiencing dramatic climate change, with predicted rates of global-mean temperature increase unprecedented in the past 1000 years. Also patterns at local scale and precipitation regimes are rapidly changing. Extreme climatic events becoming more intense frequent, especially on regional scale. Such sudden environmental changes reduce time for adaptation vulnerability natural ecosystems. Plant pathogens have three major adaptive responses to change:...

10.1079/pavsnnr201510035 article EN CABI Reviews 2015-11-04

Fusarium circinatum (Nirenberg and O’ Donnell) is the causal agent of pine pitch canker (PPC) disease, one most devastating forest diseases worldwide. Long-distance spread occurs mainly through movement infected seeds whereas at regional level, seedlings, substrates, or containers may play an important role in fungal dispersal. Invasion nurseries takes place via further can occur by planting contaminated especially due to possibility plants remaining symptomless. Once established, F. spreads...

10.3390/f10121158 article EN Forests 2019-12-17

Abstract Fusarium circinatum is a harmful pathogenic fungus mostly attacking Pinus species and also Pseudotsuga menziesii , causing cankers in trees of all ages, damping-off seedlings, mortality cuttings mother plants for clonal production. This listed as quarantine pest several parts the world trade potentially contaminated pine material such cuttings, seedlings or seeds restricted order to prevent its spread disease-free areas. Inspection plant often relies on DNA testing conventional...

10.1038/s41598-019-44672-8 article EN cc-by Scientific Reports 2019-06-03

Riparian ecosystems, in long-time developed regions, are among the most heavily impacted by human activities; therefore, distribution of tree riparian species, such as Ulmus laevis, is highly affected. This phenomenon particularly relevant at margins natural habitat where populations small and rare. In these cases, it difficult to distinguish between relics or introductions, but for restoration habitats conservation strategies. The aim this study was phylogeography southern species. We...

10.3389/fpls.2022.826158 article EN cc-by Frontiers in Plant Science 2022-02-15

Needle blights are serious needle fungal diseases affecting pines both in natural and productive forests. Among blight agents, the ascomycetes Lecanosticta acicola, Dothistroma pini D. septosporum of particular concern. These pathogens need specific, fast accurate diagnostics since they regulated species many countries may require differential management measures. Due to similarities morphology symptoms elicit, these hard distinguish using morphological characteristics. The can also be...

10.3390/f12040479 article EN Forests 2021-04-14

Dothistroma septosporum, the primary causal agent of needle blight, is one most significant foliar pathogens pine worldwide. Its wide host and environmental ranges have led to its global success as a pathogen severe economic damage forests in many regions. This comprehensive population study elucidated historical migration pathways reveal Eurasian origin fungus. When over 3800 isolates were examined, three major clusters revealed: North America, Western Europe, Eastern with distinct...

10.3390/jof7020111 article EN cc-by Journal of Fungi 2021-02-03

Abstract Aim Spreading infectious diseases associated with introduced pathogens can have devastating effects on native biota and human livelihoods. We analyse the global distribution of 100 major alien fungal oomycete substantial socio‐economic environmental impacts examine their taxonomy, ecological characteristics, temporal accumulation trajectories, regional hot‐ coldspots taxon richness flows between continents. Location Global. Taxon Alien/cryptogenic fungi fungus‐like oomycetes,...

10.1111/jbi.14755 article EN cc-by Journal of Biogeography 2023-12-08
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