Olga Gavrichkova

ORCID: 0000-0003-1818-4912
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About
Contact & Profiles
Research Areas
  • Soil Carbon and Nitrogen Dynamics
  • Plant responses to elevated CO2
  • Plant Water Relations and Carbon Dynamics
  • Indoor Air Quality and Microbial Exposure
  • Microbial Community Ecology and Physiology
  • Plant nutrient uptake and metabolism
  • Lichen and fungal ecology
  • Peatlands and Wetlands Ecology
  • Ecology and Vegetation Dynamics Studies
  • Plant Pathogens and Fungal Diseases
  • Air Quality and Health Impacts
  • Forest Ecology and Biodiversity Studies
  • Smart Materials for Construction
  • Rangeland and Wildlife Management
  • Tree-ring climate responses
  • Photosynthetic Processes and Mechanisms
  • Atmospheric and Environmental Gas Dynamics
  • Forest ecology and management
  • Gut microbiota and health
  • Botany and Plant Ecology Studies
  • Soil and Water Nutrient Dynamics
  • Rangeland Management and Livestock Ecology
  • Turfgrass Adaptation and Management
  • Horticultural and Viticultural Research
  • Plant Ecology and Soil Science

National Research Council
2016-2024

University of Palermo
2023-2024

Peoples' Friendship University of Russia
2018-2022

Istituto di Biologia e Biotecnologia Agraria
2011-2017

National Academies of Sciences, Engineering, and Medicine
2017

Institute of Agricultural Biology and Biotechnology
2010-2011

Università degli Studi della Tuscia
2008-2009

Institute of Biophysics
2002

Forest functionality and productivity are directly related to canopy light interception can be affected by potential damage from high irradiance. However, the mechanisms which leaves adapt variable environments along multilayer profile still poorly known. We explored leaf morphophysiological metabolic responses natural gradient in a pure European beech (Fagus sylvatica L.) forest at three different heights (top, middle bottom). Structural adjustment through light-dependent modifications mass...

10.1093/treephys/tpw038 article EN Tree Physiology 2016-05-22

Abstract Eucalypts are major emitters of biogenic volatile organic compounds (BVOCs), especially isoprenoids. Emissions and incorporation 13 C in BVOCs were measured Eucalyptus camaldulensis branches exposed to rapid heat stress or progressive temperature increases, order detect both metabolic processes their dynamics. Isoprene emission increased photosynthesis decreased with temperatures rising from 30°C 45°C, an increasing percentage unlabelled carbon was incorporated into isoprene...

10.1111/pce.13521 article EN Plant Cell & Environment 2019-01-21

Summary Late frost can destroy the photosynthetic apparatus of trees. We hypothesized that this alter normal cyclic dynamics C‐reserves in wood. measured soluble sugar concentrations and radiocarbon signatures (Δ 14 C) nonstructural carbon ( NSC ) woody tissues sampled from a Mediterranean beech forest was completely defoliated by an exceptional late 2016. used bomb approach to estimate time elapsed since fixation mobilized sugars. During leafless period after event, declined sharply while Δ...

10.1111/nph.16047 article EN New Phytologist 2019-07-08

Biogenic fraction of airborne PM10 which includes bacteria, viruses, fungi and pollens, has been proposed as one the potential causes toxicity. The present study aimed to provide a comprehensive understanding microbial community variations associated PM10, their main local sources in surrounding environment three urban sites Rome, characterized by differential pollution rate: green area, residential area polluted close traffic roads. We combined high-throughput amplicon sequencing bacterial...

10.3390/atmos13020224 article EN cc-by Atmosphere 2022-01-29

Abstract Deicing agents cause soil salinization and degradation in urban areas. We assessed the capacity of lawns to maintain carbon sequestration nutrient cycling with increasing salinity. The sensitivity salinity main ecosystem players: plants microorganisms were considering their complex interactions between each other environment. effects low moderate by common deicing agent (NaCl) evaluated mesocosms planted two lawns: Lolium perenne mixture grasses. Mesocosm‐, plant‐, soil‐level gas...

10.1002/ldr.3627 article EN Land Degradation and Development 2020-05-12

The impact of geographical factors, functional zoning, and biotope type on the diversity microbial communities chemical components in dust urban ecosystems was studied. Comprehensive analyses bacterial fungal communities, polycyclic aromatic hydrocarbons (PAHs), metals road leaf three zones Murmansk Moscow with contrasting anthropogenic load were conducted. We found that structure affected zoning city, type, components. Fungal instead impacted only by type. Our findings revealed mostly PAHs...

10.3390/microorganisms11020526 article EN cc-by Microorganisms 2023-02-18

Abstract In this study, grafted and own-rooted young hazelnut plants of three high-quality cultivars were cultivated in Central Italy to investigate possible differences growth, fruit flower production, physiological processes encompassing water uptake, photosynthetic variables non-structural carbohydrate allocation. Stable isotopes measurements used study carbon fluxes plants. For the first time, an ecophysiological was carried out understand seasonal growth dynamics comparison with The...

10.1093/treephys/tpab164 article EN Tree Physiology 2021-12-03

Abstract. The fate of photosynthetic products within the plant-soil continuum determines how long reduced carbon resides ecosystem and when it returns back to atmosphere in form respiratory CO2. We have tested possibility measuring natural variation δ13C δ18O disentangle potential times needed transfer carbohydrates produced by photosynthesis down trunk, roots and, general, belowground up its further release soil respiration into a beech (Fagus sylvatica) forest. measured stable oxygen...

10.5194/bg-8-2833-2011 article EN cc-by Biogeosciences 2011-10-04

The phylloplane is an integrated part of green infrastructure which interacts with plant health. Taxonomic characterization the aim to link it ecosystem functioning under anthropogenic pressure not sufficient because only active microorganisms drive biochemical processes. Activity remains largely overlooked. We aimed study interactions among biological characteristics phylloplane: taxonomic diversity, functional diversity and activity, pollution grade. Leaves Betula pendula were sampled in...

10.3390/plants11030402 article EN cc-by Plants 2022-01-31

Areas covered by seminatural grasslands have been in constant decline for decades Europe. This trend is particularly strong mountain territories, where such traditional agricultural practices as cattle grazing are no longer economically feasible. study was conducted the subalpine pasture of Cinte Tesino (TN, Italy), local farmers applied following different management strategies: shorter and durations during season a complete abandonment last 15 years. We aimed to how these strategies impact...

10.3390/plants11162121 article EN cc-by Plants 2022-08-15

Introduction: Biogenic fraction of airborne PM 10 dominated by bacteria and fungi, has been recognized as serious environmental human health issues in cities. Methods: In the present study, we combined a high-throughput amplicon sequencing bacterial 16S rRNA gene fungal internal transcribed spacer (ITS) region, with elemental analysis particulate matter (PM ) to investigate community compositions structures -associated fungi across four different seasons three urban sites Rome differential...

10.3389/fenvs.2023.1213833 article EN cc-by Frontiers in Environmental Science 2023-09-13

The patterns of change in bioclimatic conditions determine the vegetation cover and soil properties along altitudinal gradient. Together, these factors control spatial variability respiration (RS) mountainous areas. underlying mechanisms, which are poorly understood, shape resulting surface CO2 flux ecosystems. We aimed to investigate RS its drivers on northeastern slope Northwest Caucasus Mountains, Russia (1,260-2,480 m a.s.l.), mixed, fir, deciduous forests, as well subalpine alpine...

10.3389/fmicb.2023.1165045 article EN cc-by Frontiers in Microbiology 2023-06-15

We performed a comparative study of the total bacterial communities and cultivable polycyclic aromatic hydrocarbons (PAH)-degrading bacteria in different functional zones Moscow Murmansk that were formed under influence PAH composition road leaf dust. The PAHs determined by high-performance liquid chromatography (HPLC); communities’ diversity was assessed metabarcoding. degraders isolated their direct plating on medium with PAHs. quantity declined dust from traffic to recreational zone. For...

10.3390/microorganisms10101979 article EN cc-by Microorganisms 2022-10-06
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