A5040682886- Plant Water Relations and Carbon Dynamics
- Tree-ring climate responses
- Plant Stress Responses and Tolerance
- Forest ecology and management
- Horticultural and Viticultural Research
- Ecology and Vegetation Dynamics Studies
- Bioenergy crop production and management
- Plant responses to elevated CO2
- Plant Molecular Biology Research
- Tree Root and Stability Studies
- Plant tissue culture and regeneration
- Thermochemical Biomass Conversion Processes
- Plant Disease Management Techniques
- Plant Pathogens and Fungal Diseases
- Plant Gene Expression Analysis
- Botany and Plant Ecology Studies
- Plant nutrient uptake and metabolism
- Plant responses to water stress
- Microplastics and Plastic Pollution
- Biodiesel Production and Applications
- Forest Insect Ecology and Management
- Irrigation Practices and Water Management
- Enzyme Catalysis and Immobilization
- Photosynthetic Processes and Mechanisms
- Remote Sensing in Agriculture
Research Institute on Sustainable Economic Growth
2019-2024
National Research Council
2011-2024
Scuola Superiore Sant'Anna
2018-2024
University of Palermo
2023-2024
Institute of Ecosystem Study
2019-2024
Center for Sustainable Future Technologies
2022
Trees and Timber Institute
2010-2019
Institute for the Chemistry of OrganoMetallic Compounds
2019
Istituto di Genetica Molecolare
1997-2000
Significance Forest trees can live for hundreds to thousands of years, and they play a critical role in mitigating global warming by fixing approximately 15% anthropogenic CO 2 emissions annually wood formation. However, the environmental factors triggering formation onset springtime cellular mechanisms underlying this remain poorly understood, since forms beneath bark is difficult monitor. We report that Northern Hemisphere conifers driven primarily photoperiod mean annual temperature....
Cambial activity is influenced by many environmental and physiological factors among them, carbon acts as a source of energy for the growing meristems. This work has focused on intra-annual stem growth poplar compared with available xylogenesis processes in cambium outer wood. The major stages xylem production differentiation two genotypes different performances were considered. Monitoring leaf phenology combined starch, nonstructural soluble sugars water content was conducted from February...
Abstract Because of global warming, high‐latitude ecosystems are expected to experience increases in temperature and drought events. Wood formation will have adjust these new climatic constraints maintain tree mechanical stability long‐distance water transport. The aim this study is understand the dynamic processes involved wood under warming drought. Xylogenesis, gas exchange, relations anatomy black spruce [ Picea mariana (Mill.) B.S.P.] saplings were monitored during a greenhouse...
Wood formation in trees represents a carbon sink that can be modified the case of stress. The way metabolism constrains growth during stress periods (high temperature and water deficit) is now under debate. In this study, amounts non-structural carbohydrates (NSCs) for xylogenesis black spruce, Picea mariana, saplings were assessed high drought order to determine role sugar mobilization osmotic purposes its consequences secondary growth. Four-year-old spruce greenhouse subjected different...
Different irrigation effects on stem radius variation (ΔR) and maximum daily shrinkage (MDS) in Populus deltoides 'Dvina' Populus×canadensis 'I-214' were studied to assess differences drought tolerance between clones. One-year-old trees growing concrete tanks submitted two regimes (natural rainfall irrigation) from 24 June 10 August, ΔR was monitored by automatic point dendrometers. Independently of the regime, showed a higher radial increment than 'I-214'. In both clones, first response...
The presence of soluble carbohydrates in the cambial zone, either from sugars recently produced during photosynthesis or starch remobilized storage organs, is necessary for radial tree growth. However, considerable uncertainties on carbohydrate dynamics and consequences productivity exist. This study aims to better understand variation different carbon pools at intra-annual resolution by quantifying how zone sugar concentrations fluctuate over season relation phenology. A comparison between...
Effects of temperature and water deficit
Ecotypic variations in leaf conductance, soil-to-leaf hydraulic components of tissue water potential, architecture parameters and xylem embolism were examined greenhouse-grown two-year-old Aleppo pine (Pinus halepensis Mill.) seedlings from six origins representing the geographic range species Italy. Cortical resin composition was also determined. Measurements made on well-watered subjected to recurring severe drought. Drought-stressed had lower mean conductances, transpiration rates...
Warming and drought will occur with increased frequency intensity at high latitudes in the future. How heat water stress can influence tree mortality is incompletely understood. The aim of this study was to evaluate how carbon resources, stem hydraulics, wood anatomy density determine ability black spruce saplings survive daytime or night-time warming (+ 6 °C comparison control) combination a period. Plant relations, dynamics non-structural carbohydrates starch, rate, were monitored....
Seasonal analyses of cambial cell production and day-by-day stem radial increment can help to elucidate how climate modulates wood formation in conifers. Intra-annual dynamics were determined with microcores dendrometers related climatic signals Norway spruce (Picea abies (L.) Karst.). The seasonal these processes observed at two sites different altitude, Savignano (650 m a.s.l.) Lavazè (1800 the Italian Alps. activity found be site specific, indicating that phenology is highly variable...
Despite growing interest in predicting plant phenological shifts, advanced spring phenology by global climate change remains debated. Evidence documenting either small or large advancement of to rising temperature over the spatio-temporal scales implies a potential existence thermal threshold responses forests warming. We collected unique data set xylem cell-wall-thickening onset dates 20 coniferous species covering broad mean annual (MAT) gradient (-3.05 22.9°C) across Northern Hemisphere...
Hydrogen is a fundamental electron donor in diverse microbial metabolisms and it considered the energetic currency exchanged within communities anaerobic environments. also major actor transition to alternative low-carbon energy sources, primarily due its dual role as source carrier production of water byproduct combustion. The geological storage hydrogen gas produced from sources stable terrestrial reservoirs, known Underground Storage (UHS), key prerequisite decouple utilization. UHS...
Abstract A transcriptome analysis of the Populus alba cambial region was performed with aim elucidating gene network underlying response to water deficit within cambium and differentiating derivative cells. Water stress induced in 1‐year‐old P. plants by withholding for 9 days. At that time, leaf predawn potential fell −0.8 MPa, resulting a significant reduction stomatal conductance, CO 2 assimilation consistent increment stem shrinkage. These effects were almost fully reversed re‐hydration....
Abstract Arundo donax exhibits rapid growth and requires little nutrient input, making it an ideal perennial biomass crop species. However, this is accompanied by high rates of water use, potentially restricting the use A. in rain‐fed marginal lands. Here, we investigated physiological morphological responses to drought two ecotypes from contrasting habitats: one arid environment Morocco, second a warm humid sub‐Mediterranean climate central Italy. Prolonged resulted identical reductions...
Hydraulic and chemical signals operate in tandem to regulate systemic plant responses drought. Transport of abscisic acid (ABA) through the xylem phloem from root shoot has been suggested serve as main signal water deficit. There is evidence that ABA its ABA-glycosyl-ester (ABA-GE) are also formed leaves stems chloroplastic 2-C-methylerythritol-5-phosphate (MEP) pathway. This study aimed evaluate how hormonal hydraulic contribute optimize stomatal (gs), mesophyll (gm) leaf (Kleaf)...