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List of works by Helena Freitas

A Ni hyperaccumulator and a congeneric non-accumulator reveal equally effective defenses against herbivory

scientific article published on 25 July 2013

Above-ground biomass and productivity in the Montado: From herbaceous to shrub dominated communities

Adaptive plasticity to heterogeneous environments increases capacity for division of labor in the clonal invader Carpobrotus edulis (Aizoaceae).

scientific article published on 7 August 2014

Adjustment capacity of maritime pine cambial activity in drought-prone environments

scientific article

Agroecology and invasive alien plants: A winner-take-all game

scientific article published in 2023

Amelioration of chromium and heat stresses in Sorghum bicolor by Cr6+ reducing-thermotolerant plant growth promoting bacteria

scientific article published on 02 December 2019

An evolutionary perspective on leaf economics: phylogenetics of leaf mass per area in vascular plants

scientific article

Analysis of serpentinophytes from north-east of Portugal for trace metal accumulation--relevance to the management of mine environment

scientific article published in March 2004

Arbuscular mycorrhizal fungal community assembly in the Brazilian tropical seasonal dry forest

article

Arbuscular mycorrhizal fungi are an alternative to the application of chemical fertilizer in the production of the medicinal and aromatic plant Coriandrum sativum L.

scientific article published on 14 April 2016

Arbuscular mycorrhizal fungi in Mimosa tenuiflora (Willd.) Poir from Brazilian semi-arid

scientific article (publication date: 2016)

Arbuscular mycorrhizal fungi of Ammophila arenaria (L.) Link: Spore abundance and root colonisation in six locations of the European coast

article

Assessing the effects of land-use change on plant traits, communities and ecosystem functioning in grasslands: a standardized methodology and lessons from an application to 11 European sites

scientific article

Assessing the impact of understory vegetation cut on soil epigeic macrofauna from a cork-oak Montado in South Portugal

article

Assessing the suitability and safety of a well-known bud-galling wasp, Trichilogaster acaciaelongifoliae, for biological control of Acacia longifolia in Portugal

article

Author Correction: Multilayer networks reveal the spatial structure of seed-dispersal interactions across the Great Rift landscapes

scientific article published in Nature Communications

Belowground mutualists and the invasive ability of Acacia longifolia in coastal dunes of Portugal

article

Beneficial role of bacterial endophytes in heavy metal phytoremediation.

scientific article published on 15 March 2016

Bioactive and metal uptake studies of carboxymethyl chitosan-graft-D-glucuronic acid membranes for tissue engineering and environmental applications

scientific article published on 3 May 2009

Bioaugmentation with Endophytic Bacterium E6S Homologous to Achromobacter piechaudii Enhances Metal Rhizoaccumulation in Host Sedum plumbizincicola

scientific article published on 4 February 2016

Biochemical and Molecular Mechanisms of Plant-Microbe-Metal Interactions: Relevance for Phytoremediation

scientific article published in 2016

Biodiversity and Interactions in the Rhizosphere

Biodiversity in urban ecosystems: Plants and macromycetes as indicators for conservation planning in the city of Coimbra (Portugal)

article

Biological Invasion Influences the Outcome of Plant-Soil Feedback in the Invasive Plant Species from the Brazilian Semi-arid

scientific article

Biotechnological applications of serpentine soil bacteria for phytoremediation of trace metals

scientific article published on January 2009

Can root-feeders alter the composition of AMF communities? Experimental evidence from the dune grass Ammophila arenaria

article

Change in plant spatial patterns and diversity along the successional gradient of Mediterranean grazing ecosystems

article

Chapter 9 Agriculture-induced contamination of surface water and groundwater in Portugal

article

Characterization of metal-resistant plant-growth promoting Bacillus weihenstephanensis isolated from serpentine soil in Portugal

scientific article

Climate change driven plant-metal-microbe interactions

scientific article

Climate controls act at different scales on the seasonal pattern of Quercus ilex L. stem radial increments in NE Spain

article

Climatic significance of tree-ring width and intra-annual density fluctuations in Pinus pinea from a dry Mediterranean area in Portugal

article

Co-introduction of exotic rhizobia to the rhizosphere of the invasive legume Acacia saligna, an intercontinental study

article

Co-occurrence patterns and abiotic stress in sand-dune communities: Their relationship varies with spatial scale and the stress estimator

scientific article published in 2010

Common environmental factors explain both ectomycorrhizal species diversity and pine regeneration variability in a post-fire Mediterranean forest

scientific article

Contrasting soil fungal communities in Mediterranean pine forests subjected to different wildfire frequencies

scholarly article by Erika Buscardo et al published 20 June 2014 in Fungal Diversity

Corema album: unbiased dioecy in a competitive environment.

scientific article

Cost–benefit analysis of the Zonal Program of Castro Verde (Portugal): Highlighting the trade-off between biodiversity and soil conservation

article

Could biological invasion by Cryptostegia madagascariensis alter the composition of the arbuscular mycorrhizal fungal community in semi-arid Brazil?

article

Decomposition of an N-fixing invasive plant compared with a native species: Consequences for ecosystem

scientific article published in 2019

Dendrochronology of Quercus ilex L. and its potential use for climate reconstruction in the Mediterranean region

Developmentally-programmed division of labour in the clonal invader Carpobrotus edulis

Distribution of arbuscular mycorrhizal fungi (AMF) in Terceira and São Miguel Islands (Azores)

scientific article published on 01 April 2020

Diversity and fruiting patterns of ectomycorrhizal and saprobic fungi as indicators of land-use severity in managed woodlands dominated by Quercus suber — a case study from southern Portugal

article

Diversity of AMF associated with Ammophila arenaria ssp. arundinacea in Portuguese sand dunes

scientific article published on 17 October 2006

Diversity of soil basidiomycete communities associated with Quercus suber L. in Portuguese montados

article

Does salt stress increase the ability of the exotic legume Acacia longifolia to compete with native legumes in sand dune ecosystems?

scholarly article by Maria Cristina Morais published in October 2012

Drosophyllum lusitanicum, an endangered West Mediterranean endemic carnivorous plant: threats and its ability to control available resources

article

Drought and Salinity Stress Responses and Microbe-Induced Tolerance in Plants

scientific article published on 13 November 2020

Early detection, herbicide resistance screening, and integrated management of invasive plant species: a review

scientific article published in 2022

Ecological networks: delving into the architecture of biodiversity

scientific article published on 8 January 2014

Ecophysiological tolerance of duckweeds exposed to copper

scientific article published on 21 September 2008

Editorial: Beneficial Microbes Alleviate Climatic Stresses in Plants.

scientific article published on 16 May 2019

Effect of invasive Acacia dealbata Link on soil microorganisms as determined by PCR-DGGE

scientific article published in 2010

Effect of pre-treatment and supporting media on Ni(II), Cu(II), Al(III) and Fe(III) sorption by plant root material

article

Effect of root age on the allocation of metals, amino acids and sugars in different cell fractions of the perennial grass Paspalum notatum (bahiagrass)

scientific article published on 28 September 2011

Effects of Li+ transport and intracellular binding on Li+/Mg2+ competition in bovine chromaffin cells.

scientific article published in May 2004

Effects of chitin and salicylic acid on biological control activity of Pseudomonas spp. against damping off of pepper

scientific article published in 2008

Effects of inoculation of plant-growth promoting bacteria on Ni uptake by Indian mustard

scientific article published on 10 September 2007

Effects of land abandonment on plant litter decomposition in a Montado system: relation to litter chemistry and community functional parameters

article

Effects of nickel hyperaccumulation in Alyssum pintodasilvae on model arthropods representatives of two trophic levels

article

Encapsulation of <i>Pseudomonas libanensis</i> in alginate beads to sustain bacterial viability and inoculation of <i>Vigna unguiculata</i> under drought stress

scientific article published on 24 May 2021

Endophytic bacteria and their potential to enhance heavy metal phytoextraction

scientific article published on 31 July 2009

Establishment, spread and early impacts of the first biocontrol agent against an invasive plant in continental Europe

scientific article published in 2021

Eutrophication and macroalgal blooms in temperate and tropical coastal waters: nutrient enrichment experiments with Ulva spp

Evidence of adaptive tolerance to nickel in isolates of Cenococcum geophilum from serpentine soils.

scientific article

Exploring the use of residues from the invasive Acacia sp. for weed control

scientific article published on 02 May 2018

Factors affecting cork oak (<i>Quercus suber</i>) regeneration: acorn sowing success and seedling survival under field conditions

scientific article published in 2015

First record of Helicotylenchus varicaudatus Yuen, 1964 (Nematoda: Hoplolaimidae) parasitizing Ammophila arenaria (L.) Link in Portuguese coastal sand dunes ⬇️

scientific article published in 2010

Flow cytometry as a tool to assess the effects of gamma radiation on the viability, growth and metabolic activity of fungal spores

article

Functional response traits in relation to land use change in the Montado

article

Fungal diversity in ancient documents. A case study on the Archive of the University of Coimbra

article

Fungal fruitbodies and soil macrofauna as indicators of land use practices on soil biodiversity in Montado

Funneliformis mosseae and Invasion by Exotic Legumes in a Brazilian Tropical Seasonal Dry Forest

scientific article published in 2018

Genetic Diversity and Differentiation of Ammophila arenaria (L.) Link as Revealed by ISSR Markers

Genetic diversity and differential in vitro responses to Ni in Cenococcum geophilum isolates from serpentine soils in Portugal

scientific article published on 21 August 2007

Genetic diversity of rhizobia associated with Acacia longifolia in two stages of invasion of coastal sand dunes ⬇️

scientific article published on June 2007

Genetic diversity of the Macaronesian leafy liverwort Porella canariensis inferred from RAPD markers.

scientific article

Guia prático para a identificação de plantas invasoras de Portugal Continenta

article

Guia prático para a identificação de plantas invasoras em Portugal

article

Heat shock and UV-B episodes modulate olive leaves lipophilic and phenolic metabolite profiles

scholarly article

Herbicidal properties of the commercial formulation of methyl cinnamate, a natural compound in the invasive silver wattle (<i>Acacia dealbata</i>)

scientific article published in 2019

HiDaFernPT: Historical data of spore availability for 121 fern and lycopod taxa in Portugal (1926 – 2013) ⬇️

Impact of abundance weighting on the response of seed traits to climate and land use

article

Impact of wildfire return interval on the ectomycorrhizal resistant propagules communities of a Mediterranean open forest

scientific article published on 21 May 2010

Improved grain yield of cowpea (Vigna unguiculata) under water deficit after inoculation with Bradyrhizobium elkanii and Rhizophagus irregularis

Improvement of Ni phytostabilization by inoculation of Ni resistant Bacillus megaterium SR28C.

scientific article published on 27 July 2013

Improvement of plant growth and nickel uptake by nickel resistant-plant-growth promoting bacteria

scientific article published on 7 December 2008

Inconsistency in the detection of phytotoxic effects: A test with Acacia dealbata extracts using two different methods

Increased protein content of chickpea (Cicer arietinum L.) inoculated with arbuscular mycorrhizal fungi and nitrogen-fixing bacteria under water deficit conditions.

scientific article

Influence of Acacia dealbata Link bark extracts on the growth of Allium cepa L. plants under high salinity conditions

scientific article published on 18 March 2019

Influence of forest structure and environmental variables on recruit survival and performance of two Mediterranean tree species (Quercus faginea L. and Q. suber Lam.)

article

Influence of metal resistant-plant growth-promoting bacteria on the growth of Ricinus communis in soil contaminated with heavy metals

scientific article published on 15 January 2008

Influence of seasons and land-use practices on soil microbial activity and metabolic diversity in the “Montado ecosystem”

article

Inoculation of Brassica oxyrrhina with plant growth promoting bacteria for the improvement of heavy metal phytoremediation under drought conditions.

scientific article published on 4 August 2016

Inoculation of Ni-resistant plant growth promoting bacterium Psychrobacter sp. strain SRS8 for the improvement of nickel phytoextraction by energy crops.

scientific article published in February 2011

Inoculation of endophytic bacteria on host and non-host plants—Effects on plant growth and Ni uptake

article

Inoculation of plant growth promoting bacterium Achromobacter xylosoxidans strain Ax10 for the improvement of copper phytoextraction by Brassica juncea

scientific article published on 10 March 2008

Inoculation with Metal-Mobilizing Plant-Growth-Promoting Rhizobacterium Bacillus sp. SC2b and Its Role in Rhizoremediation.

scientific article

Integrating plant species contribution to mycorrhizal and seed dispersal mutualistic networks

scientific article published on 01 May 2019

Intraspecific competition and water use efficiency in Quercus suber: evidence of an optimum tree density?

article

Invasive Acacia longifolia induce changes in the microbial catabolic diversity of sand dunes

article

Is richer always better? Consequences of invaded N-rich soils for the early growth of a native and an invasive species

Is the potential for the formation of common mycorrhizal networks influenced by fire frequency?

Isolation and characterization of Ni mobilizing PGPB from serpentine soils and their potential in promoting plant growth and Ni accumulation by Brassica spp.

scientific article published on 15 February 2009

Knowledge explosion in phytotechnologies for environmental solutions

scientific article

Land use practices and ectomycorrhizal fungal communities from oak woodlands dominated by Quercus suber L. considering drought scenarios

scientific article

Large and variable genome size unrelated to serpentine adaptation but supportive of cryptic sexuality in Cenococcum geophilum

scientific article published on 11 June 2013

Leaf decomposition of cork oak under three different land uses within a montado of southern Portugal

scientific article published on 26 September 2016

Leaf traits capture the effects of land use changes and climate on litter decomposability of grasslands across Europe

scientific article published in March 2009

Learning with Nature: A Sand Dune System Case Study (Portugal)

article

Litter Deposition and Nutrient Cycling of Invaded Environments by Cryptostegia madagascariensis at Tropical Cambisols from Northeastern Brazil

scientific article published in 2023

Mechanism of control of root-feeding nematodes by mycorrhizal fungi in the dune grass Ammophila arenaria

scientific article published in 2006

Modulation of leaf attributes and water use efficiency in Quercus suber along a rainfall gradient

Multilayer networks reveal the spatial structure of seed-dispersal interactions across the Great Rift landscapes.

scientific article published on 10 January 2018

Narcissus × caramulensis (Amaryllidaceae), a new hybrid for the portuguese flora

scientific article published on 27 June 2007

Nematode Interactions in Nature: Models for Sustainable Control of Nematode Pests of Crop Plants?

article

Nitrogen pulses increase fungal pathogens in Amazonian lowland tropical rain forests

scientific article published in 2022

Nitrogen transport in the xylem sap of Quercus ilex: the role of ornithine

scientific article published in May 2005

No allelopathic effect of the invader Acacia dealbata on the potential infectivity of arbuscular mycorrhizal fungi from native soils

article

O armário: Fruiting phenology data for 4,462 plant taxa in Portugal (1926 – 2013) ⬇️

O armário: Fruiting phenology data for 4,462 plant taxa in Portugal (1926–2013) ⬇️

scientific article published on 22 June 2024

Of mammals and bacteria in a rainforest: Temporal dynamics of soil bacteria in response to simulated N pulse from mammalian urine

article

On the Limited Potential of Azorean Fleshy Fruits for Oceanic Dispersal.

scientific article published on 14 October 2015

Perspectives of plant-associated microbes in heavy metal phytoremediation.

scientific article

Physiological integration increases the survival and growth of the clonal invader Carpobrotus edulis

Phytoextraction of heavy metal polluted soils using Sedum plumbizincicola inoculated with metal mobilizing Phyllobacterium myrsinacearum RC6b

scientific article published on 23 July 2013

Plant Letters: A citizen science project uncovering historical biodiversity data

scientific article published in 2019

Plant and microbial biodiversity in urban forests and public gardens: Insights for cities’ sustainable development

scholarly article by Lurdes Barrico et al published January 2018 in Urban Forestry and Urban Greening

Plant community tolerant to trace elements growing on the degraded soils of São Domingos mine in the south east of Portugal: environmental implications.

scientific article

Plant diversity and productivity experiments in european grasslands

scientific article

Plant sex and phenological stage affect interactions with rhizosphere nematode communities

scientific article published in 2018

Plant-soil feedback as a mechanism of invasion by Carpobrotus edulis

article

Plant-soil feedback of two legume species in semi-arid Brazil

scientific article published on 08 August 2019

Plants growing in abandoned mines of Portugal are useful for biogeochemical exploration of arsenic, antimony, tungsten and mine reclamation

article

Post-clearing recovery of coastal dunes invaded by Acacia longifolia: is duration of invasion relevant for management success?

article

Potential of plant beneficial bacteria and arbuscular mycorrhizal fungi in phytoremediation of metal-contaminated saline soils

scientific article published on 22 June 2019

Potential of siderophore-producing bacteria for improving heavy metal phytoextraction

scientific article published on 13 January 2010

Preparation, characterization, bioactive and metal uptake studies of alginate/phosphorylated chitin blend films

scientific article published on 5 November 2008

Public Perception of Invasive Plant Species: Assessing the impact of workshop activities to promote young students' awareness

article

Rain exclusion affects cambial activity in adult maritime pines

scientific article published on 05 March 2017

Recovery Potential of Dune Ecosystems Invaded by an Exotic Acacia Species (Acacia longifolia)1

article

Relationships between climate and double rings in Quercus ilex from northeast Spain

article

Responses of root-feeding nematodes (Helicotylenchus spp.) to local and non-local populations of the host plant Ammophila arenaria

article

Salicornia ramosissima population dynamics and tolerance of salinity

scientific article published in 2006

Salt tolerance traits increase the invasive success of Acacia longifolia in Portuguese coastal dunes

scientific article

Seasonal and daily cycles of stem radial variation of Pinus pinaster in a drought-prone environment

article by Joana Vieira et al published October 2013 in Agricultural and Forest Meteorology

Sediment pool and plant content as indicators of nitrogen regimes in Portuguese estuaries

article

Seed Coating with Arbuscular Mycorrhizal Fungi for Improved Field Production of Chickpea

scholarly article

Seed Coating: A Tool for Delivering Beneficial Microbes to Agricultural Crops

scientific article published on 06 November 2019

Seed coating with arbuscular mycorrhizal fungi as an ecotechnologicalapproach for sustainable agricultural production of common wheat (Triticum aestivum L.).

scientific article

Seed ecology of an invasive alien species, Acacia longifolia (Fabaceae), in Portuguese dune ecosystems

scientific article

Serpentine bacteria influence metal translocation and bioconcentration of Brassica juncea and Ricinus communis grown in multi-metal polluted soils.

scientific article

Serpentine endophytic bacterium Pseudomonas azotoformans ASS1 accelerates phytoremediation of soil metals under drought stress.

scientific article published on 3 July 2017

Short- and long-term impacts of Acacia longifolia invasion on the belowground processes of a Mediterranean coastal dune ecosystem

article by Elizabete Marchante et al published October 2008 in Applied Soil Ecology

Soil recovery after removal of the N2-fixing invasive Acacia longifolia: consequences for ecosystem restoration

scientific article

Sources of phenolic compounds in two catchments of southern Portugal - effect of season, land use and soil type.

scientific article published on 10 March 2006

Spatio-temporal dynamics of soil bacterial communities as a function of Amazon forest phenology.

scientific article published on 12 March 2018

Species composition of arbuscular mycorrhizal fungi differ in semi-natural and intensively managed pastures in an isolated oceanic island (Terceira, Azores)

article

Successful rehabilitation of a sand dune system

Supporting data for "O armário: Fruiting phenology data for 4,462 plant taxa in Portugal (1926 – 2013)" ⬇️

Temporal changes in the impacts on plant communities of an invasive alien tree, Acacia longifolia

article

Testing for the survey mode effect on contingent valuation data quality: A case study of web based versus in-person interviews

scholarly article by Cristina Marta-Pedroso et al published May 2007 in Ecological Economics

The acclimation potential of Acacia longifolia to water stress: Implications for invasiveness ⬇️

scientific article published on August 14, 2012

The antioxidant system in Olea europaea to enhanced UV-B radiation also depends on flavonoids and secoiridoids

scientific article published on 20 November 2019

The combined role of topography and overstorey tree composition in promoting edaphic and floristic variation in a Mediterranean forest

article

The early effects of afforestation on biodiversity of grasslands in Ireland

The hyperaccumulator Sedum plumbizincicola harbors metal-resistant endophytic bacteria that improve its phytoextraction capacity in multi-metal contaminated soil.

scientific article

The potential role of seed banks in the recovery of dune ecosystems after removal of invasive plant species

article

The use of sedimentary %C, %N, δ15N, and Pb concentrations to assess historical changes in anthropogenic influence on Portuguese estuaries

article

The value of the botany archive of the University of Coimbra (Portugal) to biodiversity research, crowdsourcing and history of science projects

scientific article published in 2020

Trends in plant and soil microbial diversity associated with Mediterranean extensive cereal–fallow rotation agro-ecosystems

article

UV-B radiation modulates physiology and lipophilic metabolite profile in Olea europaea

scientific article published on 29 January 2018

Using microbial seed coating for improving cowpea productivity under a low-input agricultural system

scientific article published on 26 November 2019

Vessel features of Quercus ilex L. growing under Mediterranean climate have a better climatic signal than tree-ring width

Weak effects of the exotic invasive Carpobrotus edulis on the structure and composition of Portuguese sand-dune communities

article

Working with Nature by Protecting Sand Dunes: Lessons Learned

Xylogenesis of Pinus pinaster under a Mediterranean climate

scientific article published on 29 October 2013

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