Effects of inoculation of plant-growth promoting bacteria on Ni uptake by Indian mustardRAJKUMAR, Mani; FREITAS, Helena.Bioresource technology. 2008, Vol 99, Num 9, pp 3491-3498, issn 0960-8524, 8 p.Article

The acclimation potential of Acacia longifolia to water stress: Implications for invasivenessMORAIS, Maria Cristina; FREITAS, Helena.Plant science (Limerick). 2012, Vol 196, pp 77-84, issn 0168-9452, 8 p.Article

Diversity of AMF associated with Ammophila arenaria ssp. arundinacea in Portuguese sand dunesRODRIGUEZ-ECHEVERRIA, Susana; FREITAS, Helena.Mycorrhiza (Berlin). 2006, Vol 16, Num 8, pp 543-552, issn 0940-6360, 10 p.Article

Influence of metal resistant-plant growth-promoting bacteria on the growth of Ricinus communis in soil contaminated with heavy metalsRAJKUMAR, Mani; FREITAS, Helena.Chemosphere (Oxford). 2008, Vol 71, Num 5, pp 834-842, issn 0045-6535, 9 p.Article

Post-clearing recovery of coastal dunes invaded by Acacia longifolia: is duration of invasion relevant for management success?MARCHANTE, Hélia; FREITAS, Helena; HOFFMANN, John H et al.Journal of applied ecology (Print). 2011, Vol 48, Num 5, pp 1295-1304, issn 0021-8901, 10 p.Article

Influence of seasons and land-use practices on soil microbial activity and metabolic diversity in the Montado ecosystemCOSTA, Dalila; FREITAS, Helena; SOUSA, José Paulo et al.European journal of soil biology. 2013, Vol 59, pp 22-30, issn 1164-5563, 9 p.Article

Co-occurrence patterns and abiotic stress in sand-dune communities: Their relationship varies with spatial scale and the stress estimatorMALTEZ-MOURO, Sara; MAESTRE, Fernando T; FREITAS, Helena et al.Acta oecologica (Montrouge). 2010, Vol 36, Num 1, pp 80-84, issn 1146-609X, 5 p.Article

Effects of land abandonment on plant litter decomposition in a Montado system: relation to litter chemistry and community functional parametersCASTRO, Helena; FORTUNEL, Claire; FREITAS, Helena et al.Plant and soil. 2010, Vol 333, Num 1-2, pp 181-190, issn 0032-079X, 10 p.Article

Diversity of soil basidiomycete communities associated with Quercus suber L. in Portuguese montadosBARRICO, Lurdes; RODRIGUEZ-ECHEVERRIA, Susana; FREITAS, Helena et al.European journal of soil biology. 2010, Vol 46, Num 5, pp 280-287, issn 1164-5563, 8 p.Article

Short-and long-term impacts of Acacia longifolia invasion on the belowground processes of a Mediterranean coastal dune ecosystemMARCHANTE, Elizabete; KJØLLER, Annelise; STRUWE, Sten et al.Agriculture,ecosystems & environment. Applied soil ecology. 2008, Vol 40, Num 2, pp 210-217, issn 0929-1393, 8 p.Article

Genetic diversity of rhizobia associated with Acacia longifolia in two stages of invasion of coastal sand dunesRODRIGUEZ -ECHEVERRIA, Susana; CRISOSTOMO, Joao A; FREITAS, Helena et al.Applied and environmental microbiology (Print). 2007, Vol 73, Num 15, pp 5066-5070, issn 0099-2240, 5 p.Article

Co-introduction of exotic rhizobia to the rhizosphere of the invasive legume Acacia saligna, an intercontinental studyAPOLINARIO CRISOSTOMO, Joao; RODRIGUEZ-ECHEVERRIA, Susana; FREITAS, Helena et al.Applied soil ecology (Print). 2013, Vol 64, pp 118-126, issn 0929-1393, 9 p.Article

Phytoextraction of heavy metal polluted soils using Sedum plumbizincicola inoculated with metal mobilizing Phyllobacterium myrsinacearum RC6bYING MA; RAJKUMAR, Mani; YONGMING LUO et al.Chemosphere (Oxford). 2013, Vol 93, Num 7, pp 1386-1392, issn 0045-6535, 7 p.Article

Inoculation of endophytic bacteria on host and non-host plants—Effects on plant growth and Ni uptakeYING MA; RAJKUMAR, Mani; YONGMING LUO et al.Journal of hazardous materials (Print). 2011, Vol 195, pp 230-237, issn 0304-3894, 8 p.Article

Improvement of plant growth and nickel uptake by nickel resistant-plant-growth promoting bacteriaYING MA; RAJKUMAR, Mani; FREITAS, Helena et al.Journal of hazardous materials (Print). 2009, Vol 166, Num 2-3, pp 1154-1161, issn 0304-3894, 8 p.Article

Sediment pool and plant content as indicators of nitrogen regimes in Portuguese estuariesCASTRO, Paula; VALIELA, Ivan; FREITAS, Helena et al.Journal of experimental marine biology and ecology. 2009, Vol 380, Num 1-2, pp 1-10, issn 0022-0981, 10 p.Article

The use of sedimentary %C, %N, δ¹⁵N, and Pb concentrations to assess historical changes in anthropogenic influence on Portuguese estuariesCASTRO, Paula; VALIELA, Ivan; FREITAS, Helena et al.Environmental pollution (1987). 2007, Vol 147, Num 3, pp 706-712, issn 0269-7491, 7 p.Article

Endophytic bacteria and their potential to enhance heavy metal phytoextractionRAJKUMAR, Mani; AE, Noriharu; FREITAS, Helena et al.Chemosphere (Oxford). 2009, Vol 77, Num 2, pp 153-160, issn 0045-6535, 8 p.Article

Invasive Acacia longifolia induce changes in the microbial catabolic diversity of sand dunesMARCHANTE, Elizabete; KJØLLER, Annelise; STRUWE, Sten et al.Soil biology & biochemistry. 2008, Vol 40, Num 10, pp 2563-2568, issn 0038-0717, 6 p.Article

Improvement of Ni phytostabilization by inoculation of Ni resistant Bacillus megaterium SR28CRAJKUMAR, Mani; YING MA; FREITAS, Helena et al.Journal of environmental management. 2013, Vol 128, pp 973-980, issn 0301-4797, 8 p.Article

No allelopathic effect of the invader Acacia dealbata on the potential infectivity of arbuscular mycorrhizal fungi from native soilsLORENZO, Paula; RODRIGUEZ-ECHEVERRIA, Susana; FREITAS, Helena et al.European journal of soil biology. 2013, Vol 58, pp 42-44, issn 1164-5563, 3 p.Article

Isolation and characterization of Ni mobilizing PGPB from serpentine soils and their potential in promoting plant growth and Ni accumulation by Brassica sppYING MA; RAJKUMAR, Mani; FREITAS, Helena et al.Chemosphere (Oxford). 2009, Vol 75, Num 6, pp 719-725, issn 0045-6535, 7 p.Article

Inoculation of plant growth promoting bacterium Achromobacter xylosoxidans strain Ax 10 for the improvement of copper phytoextraction by Brassica junceaYING MA; RAJKUMAR, Mani; FREITAS, Helena et al.Journal of environmental management. 2009, Vol 90, Num 2, pp 831-837, issn 0301-4797, 7 p.Article

Climatic significance of tree-ring width and intra-annual density fluctuations in Pinus pinea from a dry Mediterranean area in PortugalCAMPELO, Filipe; NABAIS, Cristina; FREITAS, Helena et al.Annals of forest science. 2007, Vol 64, Num 2, pp 229-238, issn 1286-4560, 10 p.Article

Nitrogen transport in the xylem sap of Quercus ilex : The role of ornithineNABAIS, Cristina; HAGEMEYER, Jürgen; FREITAS, Helena et al.Journal of plant physiology. 2005, Vol 162, Num 5, pp 603-606, issn 0176-1617, 4 p.Article