Fernanda Covacevich

Fernanda Covacevich
  • Doctor in Plant Production
  • Researcher at National Scientific and Technical Research Council

About

94
Publications
23,575
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Citations
Introduction
Soil microbiology. Arbuscular mycorrhizal fungi. Classical and molecular tecniques. Quantification of root colonization, mycorrhizal fungal diversity, soil glomalin content. Assesment of plant growth promotion and biocontrol. Pots and field experiments. Assesment of the impact of agricultural managment practices affect mycorrhizal fungi. Interactions of mycorrhizal fungi with others soil organisms (Trichoderma and Nematodes)
Skills and Expertise
Current institution
National Scientific and Technical Research Council
Current position
  • Researcher

Publications

Publications (94)
Article
Full-text available
Arbuscular mycorrhizal fungi (AMF) and Trichoderma spp. (T) are known as plant-beneficial fungi effective against root-knot nematodes, but their interactions in the rhizosphere are not well understood. This study examined how Meloidogyne javanica influences AMF colonization and community diversity at the root-soil interface of tomato plants. A 60-d...
Article
Full-text available
p> Background : A rapid production of tree seedlings in nurseries with a high survival rate after transplanting is important to respond to the current demand for programs of restoration of arid environments by forestation. The low level of seedlings’ survival and establishment, caused by low moisture and nutrient content of soils, has been a bottle...
Article
Full-text available
Low crop diversification in highly productive areas has led to declines in total organic carbon (TOC) in soil, essential nutrients for plant’s growth and microbial diversity/activity. This could have an impact on the movement of water in the soil profile and, consequently, on the production of crops. To address these challenges there is growing sup...
Article
Full-text available
Arbuscular mycorrhizal fungi (AMF) and some rhizobacteria are known as plant growth-promoting microorganism (PGPM) as they play signifcant roles in improving soil fertility structure, plant nutrition, growth, and health. However, little is known about the PGPM potential of AMF and rhizobacteria native to the Rift Valley and highland regions of Ethi...
Article
Full-text available
Anaerobically mineralized nitrogen (AN) is a suitable soil health indicator. The AN is sensitive to soil use changes and is related to soil and particulate organic carbon and aggregate stability. This work aims to evaluate the relationship between AN and 1) easily extractable glomalin-related soil proteins; 2) abundance of arbuscular mycorrhizal fu...
Article
Full-text available
Arbuscular mycorrhizal fungi (AMF) and some rhizobacteria are known as plant growth-promoting microorganism (PGPM) as they play significant roles in improving soil fertility structure, plant nutrition, growth, and health. However, little is known about the PGPM potential of AMF and rhizobacteria native to the Rift Valley and highland regions of Eth...
Article
Full-text available
Drought stress (DS) is one of the main environmental stresses that determines crop productivity. It has been estimated that DS depresses over 40%–60% of soybean (Glycine max (L.) Merr.) and common bean (Phaseolus vulgaris L.) production worldwide, respectively. Although different agronomic strategies are sometimes implemented, the current goal in s...
Article
The aim of this study was to find ways to improve the forage yield of grass‐legume mixtures without compromising soil biodiversity. In Argentinean Patagonia, the effects of applying cattle dry manure (M) and urea (U) (0, 60, 120, or 240 kg N ha ⁻¹ year ⁻¹ ) were assessed on herbage production of irrigated fescue‐lotus mixtures, as well as on the ac...
Article
Full-text available
Introduction Inoculation of plants with beneficial microorganisms may improve plant performance yet suffers from efficacy variability. A solution might be the combined application of different inoculants as consortium. The objective of the present study was to evaluate the effects of single or combined inoculation of Trichoderma harzianum , strain...
Preprint
In the midst of a looming global biodiversity crisis, approaches to rapidly collect, curate, catalog, and integrate biodiversity data at global scales are more important than ever before1. Historically, data collection and reuse have been linked to local access to funding for scientific research and infrastructure, generating blind spots in the dis...
Preprint
Full-text available
In the midst of a looming global biodiversity crisis, approaches to rapidly collect, curate, catalog, and integrate biodiversity data at global scales are more important than ever before1. Historically, data collection and reuse have been linked to local access to funding for scientific research and infrastructure, generating blind spots in the dis...
Article
The glomalin-related soil proteins (GRSPs) are currently used to describe different fractions of the protein, which are linked to the arbuscular mycorrhizal fungal activity and include the easily or total GRSP (named EE or T, respectively) extracted. The GRSP would represent part of the carbon storage, but there are still disagreements whether the...
Article
Full-text available
The evolutionary history of the symbiotic association between arbuscular mycorrhizal fungi (AMF) and embryophytes dates back to the Devonian period. Previous ecological and physiological studies have described the presence of arbuscules, inter- and intracellular hyphae, vesicles, coils and spores, in liverworts and hornworts, which are considered a...
Article
Full-text available
RESUMEN Nuestro objetivo fue evaluar la producción y partición de biomasa de plantas de Festuca arundinacea (fes-tuca alta) infectadas con el hongo endófito Epichloë coenophiala e inoculadas con hongos micorrícicos arbusculares (HMA) en respuesta a la fertilización fosfatada (P). Para ello, se realizó un experimento en macetas en cámara de crecimie...
Conference Paper
Full-text available
Las pasturas mixtas leguminosa-gramínea son un componente importante para lograr productividad y calidad en esquemas agroecológicos. En estas pasturas, la fertilización con nitrógeno (N) sintético aumenta la productividad, reduce la leguminosa y a la nodulación radical, pudiendo afectar a los hongos micorrícicos arbusculares (HMA). Evaluamos en una...
Poster
Full-text available
Las pasturas mixtas leguminosa-gramínea son un componente importante para lograr productividad y calidad en esquemas agroecológicos. En estas pasturas, la fertilización con nitrógeno (N) sintético aumenta la productividad, reduce la leguminosa y a la nodulación radical, pudiendo afectar a los hongos micorrícicos arbusculares (HMA). Evaluamos en una...
Conference Paper
Full-text available
En pasturas mixtas leguminosa-gramínea (LEG:GRA) la fertilización con nitrógeno (N) implica el riesgo de perder el componente LEG en su rango óptimo de 40-60% (Nyfeler et al 2009). Los estiércoles como fuente de N han sido menos explorados respecto a los fertilizantes sintéticos para incrementar rendimientos en pasturas. El objetivo del trabajo fue...
Article
Full-text available
Climate change, the shortage of fertilizers and reduced land for cultivation have drawn attention to the potential aid provided by soil-borne organisms. Arbuscular mycorrhizal fungi (AMF) offer a wide range of ecosystem benefits and hence, understanding the mechanisms that control AMF occurrence and maintenance is essential for resilient crop produ...
Article
Full-text available
La expansión del cultivo de soja en la Argentina reemplazó a otros cultivos, a la ganadería extensiva y a ecosistemas forestales. Se desconoce el impacto sobre poblaciones microbianas nativas edáficas que podrían brindar servicios ecosistémicos, como los hongos micorrícicos arbusculares (HMA). Los HMA son simbiontes de las raíces de la mayoría de l...
Article
Full-text available
Application of agrochemicals and mechanization enabled to increase agricultural productivity yet caused various environmental and soil health-related problems. Agricultural practices affect soil microorganisms which are the key players of many ecosystem processes. However, less is known whether this effect differs between time points. To achieve th...
Article
Full-text available
Low arbuscular-mycorrhizal (AM) sporulation in arid field soils limits our knowledge of indigenous species when diversity studies are based only on spore morphology. Our aim was to use different approaches (i.e., spore morphological approach and PCR–SSCP (single-strand-conformation-polymorphism) analysis after trap plant multiplication strategies t...
Article
Full-text available
Nuestro objetivo fue evaluar los cambios en la abundancia y actividad de hongos micorrí-cicos arbusculares (HMA) en respuesta al agregado de calcita como corrector de pH. Se testearon tres dosis de calcita (0, 2000 y 6000 kg ha-1) aplicadas en Molisoles con pH subá-cidos ubicados en French y Gardey (Provincia de Buenos Aires) con rotaciones de trig...
Article
Anaerobically mineralized nitrogen (AN) in bulk soil (ANBS) has been described as a soil health indicator. Considering that large macroaggregates (2000–8000 μm, MA) are more sensitive to management practices than the bulk soil (i.e. whole soil), AN within MA (ANMA) would be a better soil health indicator than ANBS. The aim of this study was to eval...
Article
Full-text available
Para la implementación de biofertilizantes se pretende que su formulación sea económica, de fácil aplicación y que garantice la eficacia del inóculo. Nuestro objetivo fue seleccionar un sustrato para vehiculizar Trichoderma harzianum Rifai y evaluar su efecto sobre plantas de pimiento (Capsicum annum L.). El desarrollo de biomasa fúngica y esporula...
Article
Full-text available
RESUMEN Estrategias de asociaciones entre plantas con hongos micorrícicos arbusculares (HMA) podrían ser utilizadas para garantizar una eficiente nutrición de fósforo (P). Sin embargo, se desconoce si prácticas usuales de largo plazo destinadas a la producción de soja en nuestro país, han deprimido el potencial de colonización y de pro-moción de cr...
Article
Full-text available
Estrategias de asociaciones entre plantas con hongos micorrícicos arbusculares (HMA) podrían ser utilizadas para garantizar una eficiente nutrición de fósforo (P). Sin embargo, se desconoce si prácticas usuales de largo plazo destinadas a la producción de soja en nuestro país, han deprimido el potencial de colonización y de promoción de crecimiento...
Article
Full-text available
Mondino, E. A.; Thougnon Islas, A. J.; Covacevich, F. 2019. Potentiality in controlling nematode infection in tomato by indigenous arbuscular mycorrhizal fungi. Horticultura Argentina 38 (96): 20-29. Our objective was to evaluate the suppression of root infection by the nematode Meloidogyne incognita in tomato roots previously colonized by arbuscul...
Article
Full-text available
In the last decades, there has been a tendency towards sustainable agriculture. Following this trend, edaphic fungi as Trichoderma and arbuscular mycorrhizal fungi (AMF) could increase plant growth contributing to diminish agricultural chemical supply. However, little information exists in current research regarding the possible effects of alternat...
Poster
Full-text available
La incorporación de cultivos de cobertura (CC) así como las rotaciones aumentan la materia orgánica y la disponibilidad de nutrientes del suelo. Los microorganismos rizosféricos (hongos y bacterias) pueden presentar capacidades, tales como la solubilización de fósforo (P), que pueden favorecer la nutrición y/o el crecimiento de los cultivos. Dichas...
Article
Full-text available
Mondino, E. A.; Thougnon Islas, A. J.; Covacevich, F. 2019. Potentiality in controlling nematode infection in tomato by indigenous arbuscular mycorrhizal fungi. Horticultura Argentina 38 (96): 20-29. Our objective was to evaluate the suppression of root infection by the nematode Meloidogyne incognita in tomato roots previously colonized by arbuscul...
Chapter
For a better understanding of natural, degraded areas and agro-ecosystems, the study of surface and deep soil responses to global change is required. To enhance the resilience of soil ecosystems, the examination and use of arbuscular mycorrhizas, was indicated since they are drivers of nutrient cycles participating in some ecosystem services, such...
Article
Full-text available
Trichoderma fungi are considered as suitable biofertilizers, since they could increase the efficiency of the use of nutrients in plants and are used as biocontrol agents against plant pathogen. The aim of this study was to characterize a set of Trichoderma strains isolated from horticultural and near-pristine soils from the Argentine Pampas, and to...
Article
Arbuscular mycorrhizal fungi (AMF) are a key component of soil microbiota in natural and anthropogenic ecosystems. Even though soil type and climate conditioned land uses in the past, soybean cultivation has overrode such limitations and replaced the earlier diverse agro-and natural ecosystems in many countries of South America. We investigated whe...
Research
In the last decades, there has been a tendency towards sustainable agriculture. Following this trend, edaphic fungi as Trichoderma and arbuscular mycorrhizal fungi (AMF) could increase plant growth contributing to diminish agricultural chemical supply. However, little information exists in current research regarding the possible effects of alternat...
Poster
Full-text available
En la última década, la implementación del monocultivo de soja produjo una disminución de los contenidos de materia orgánica (MO) en los suelos. Algunas alternativas han sido la incorporación de cultivos de cobertura (CC) y rotaciones de cultivos, los cuales aumentan el contenido de MO y por consiguiente mejoran la calidad de los suelos agrícolas....
Article
Full-text available
The aim of this work was to analyse and compare indigenous arbuscular mycorrhizal colonisation (AMC) in relation to growth and total soluble carbohydrates (TSC) in two major, physiologically contrasting crop species: maize (Zea mays L.) and sunflower (Helianthus annuus L.). In order to promote contrasting TSC concentrations, we modified the radiati...
Article
Full-text available
El uso de los microorganismos del suelo y sus interacciones benéficas con las plantas y el ecosistema, son una estrategia promisoria para lograr una agricultura sustentable. Debido a la alta frecuencia de detección del glifosato en suelos agrícolas de Argentina y particularmente en la región pampeana, y a su efecto negativo sobre microorganismos be...
Article
Full-text available
El objetivo del trabajo fue evaluar a campo el efecto de la labranza y la fertilización con macro y micronutrientes, sobre el crecimiento y la colonización de raíces por hongos micorrícicos arbusculares y la abundancia de microorganismos solubilizadores de P en la rizósfera del cultivo de trigo. Para ello, se realizó el monitoreo del crecimiento y...
Book
Full-text available
La primera edición de esta publicación fue generada por un grupo de profesionales de la investigación pública agropecuaria de Argentina en respuesta a la necesidad de contar con protocolos básicos para el muestreo de suelos, a campo, para uso común por parte de investigadores y profesionales agropecuarios que trabajan en esta temática. Esta segunda...
Poster
Full-text available
Arbuscular mycorrhizal fungi (AMF) are key components of soil microbiota. Since intensive soybean (Glycine max Merr.) cultivation was established in Latin America, millions of hectares are deforested and cattle farms converted to monocultures every year. The objective of this study was to investigate the effect of historical land use (HLU) on AMF c...
Poster
Full-text available
Soybean is an annual plant originated in Asia which occupies c. 90% of Argentinean agricultural area. Arbuscular mycorrhizal fungi (AMF) have been reported as strongly synergistic with exotic plants colonizing new regions of the world. The objective of this work was to evaluate mycorrhizal status of soybean fields and the effect of resident AMF on...
Article
En un entorno con una enorme sobreexposición a la información, donde abundan mitos y preconceptos, es clave establecer canales directos de comunicación entre los generadores del conocimiento y el resto de la sociedad. Comunicación que puede generar espacios de intercambio y discusión en los que primen la calidad de la información. Como integrantes...
Article
Full-text available
The objective was to evaluate under field conditions, the effect of tillage and fertilization with macro and micronutrients on growth of wheat crop, root colonization by arbuscular mycorrhizal fungi and the abundance of P solubilizing microorganisms in the rhizosphere. Wheat crop (cv. “Buck SY 300”) growth, root mycorrhizal colonization and soil ch...
Article
Full-text available
Foram examinadas quatro estratégias (Tris / EDTA, dodecilsulfato de sódio, resina Chelex 100 e brometo de cetiltrimetilamónio -CTAB-) para a extração de ácido nucleico (DNA) das comunidades de nematóides. Os nematóides foram isolados a partir de uma área agrícola sob manejo diferente num experimento de rotação de culturas de longo prazo, durante tr...
Article
Full-text available
Despite the ubiquity and importance of indigenous arbuscular mycorrhizal fungi (AMF) for plant ecosystems; functioning of indigenus mycorrhizal symbiosis (IMS) and related environmental factors at coastal Caribbean ecosystems remains still scarce. In order to determine functionality of IMS under contrasting land uses and wet seasons from Cuba, the...
Research
We to investigate the receptivity of a moderately acidic wheat-growing soil of the Argentinean Pampas (south America) to non indigenous Glomus and Acaulospora AM strains.
Article
Full-text available
No-till (NT) affects dynamics of phosphorus (P) applied. Wheat response to P fertilization can be affected by available soil P, grain yield, placement, rate, and timing of fertilization. Furthermore, mycorrhizal associations could contribute to improving plant P uptake. Three experiments were used to evaluate P rate (0, 25, and 50 kg P ha−1) and fe...
Article
Full-text available
The objective of this work was to evaluate methods to eliminate or reduce the number of indigenous arbuscular mycorrhizal fungi (AMF) from soil samples without affecting their edaphic or microbiological properties. At an early trial we evaluated moist heat (autoclaving), dry heat (oven), sodium hypochlorite (NaClO) and formaldehyde at a range of 10...
Article
Full-text available
The objective of this work was to evaluate methods to eliminate or reduce the number of indigenous arbuscular mycorrhizal fungi (AMF) from soil samples without affecting their edaphic or microbiological properties. At an early trial we evaluated moist heat (autoclaving), dry heat (oven), sodium hypochlorite (NaClO) and formaldehyde at a range of 10...
Article
Full-text available
The effect of nitrogen (N), phosphorous (P), sulfur (S) and zinc (Zn) fertilization on arbuscular mycorrhizal colonization (AMC), nutrition and growth of maize under contrasting tillage management was assessed in a field trial. The effect of Zn fertilization (+Zn: 1.67 mg Zn kg-1, -Zn: 0.33 mg Zn kg-1), and inoculation with four consortium with arb...
Article
Full-text available
We characterized the infective and sporulation capacities of microbial consortia of arbuscular mycorrhizal fungi (AMF) native of Buenos Aires province (Argentina) and determined if some soil characteristics and mycorrhizal parameters could allow to select potentially beneficial inocula. Soil samples were selected from seven locations in Buenos Aire...
Article
Full-text available
The effect of nitrogen (N), phosphorous (P), sulfur (S) and zinc (Zn) fertilization on arbuscular mycorrhizal colonization (AMC), nutrition and growth of maize under contrasting tillage management was assessed in a field trial. The effect of Zn fertilization (+Zn: 1.67 mg Zn kg-1, -Zn: 0.33 mg Zn kg-1), and inoculation with four consortium with arb...
Conference Paper
Full-text available
The replacement of native vegetation by just one main crop has produced negative consequences on above and underground biodiversity. The aim of this investigation was to elucidate the effect of intensity land use (i.e years of planting soybean) on native AMF diversity. A total of 120 sites were chosen according to a gridline design of 10 km between...
Article
Full-text available
We characterized the infective and sporulation capacities of microbial consortia of arbuscular mycorrhizal fungi (AMF) native of Buenos Aires province (Argentina) and determined if some soil characteristics and mycorrhizal parameters could allow to select potentially beneficial inocula. Soil samples were selected from seven locations in Buenos Aire...
Article
Full-text available
for SCIRP and the owner of the intel-lectual property Cecilia Tambascio et al. All Copyright © 2014 are guarded by law and by SCIRP as a guardian. ABSTRACT Rapid emergence and a vigorous growth prevent the seed tubers from infections by soil microbes and allow a rapid interception of solar radiation. In this work, the effect of the potassium phosph...
Article
A new acaulosporoid fungal species characterized by glomerospores with a complex ten-layered wall structure and uniquely ornamented fourth layer (outer wall layer OWL4) found in impacted areas of the Amazon Forest and cultivated areas of the Atlantic Forest in Brazil is described as Acaulospora endographis.
Article
Full-text available
The soils of Buenos Aires Province (Argentina) have very good physical and chemical properties for agricultural production, and also a high microbial diversity. However, the continuous cropping of agricultural soils with a high nutrient removal rate has accelerated its degradation. Consequently, the soils' natural fertility and the beneficial micro...
Article
Full-text available
The soils of Buenos Aires Province (Argentina) have very good physical and chemical properties for agricultural production, and also a high microbial diversity. However, the continuous cropping of agricultural soils with a high nutrient removal rate has accelerated its degradation. Consequently, the soils' natural fertility and the beneficial micro...
Article
Full-text available
Many members of Archaea, a group of prokaryotes recognized three decades ago, colonize extreme environments; however, new research has shown that Archaeans are also abundant components of plankton in the open sea, where they play a key role in the biogeochemical cycles. Although the widespread distribution of Archaea in the marine environment is we...
Article
Full-text available
Many members of Archaea, a group of prokaryotes recognized three decades ago, colonize extreme environments; however, new research has shown that Archaeans are also abundant components of plankton in the open sea, where they play a key role in the biogeochemical cycles. Although the widespread distribution of Archaea in the marine environment is we...
Article
Arbuscular mycorrhizal fungi mycelium creates multiple fungal links between roots of plants and could be an important component of plant succession in ecosystems. Our objective was to compare the spore number (SN), genus contribution and indigenous arbuscular mycorrhizal colonization (AMC) capacity of soils from a tropical dry forest (caatinga) eco...
Article
This review was done to explore the current information on the benefit of arbuscular mycorrhizal symbioses in agricultural systems, drawing on results of research on agroecosystems in Argentina and Brazil. The increasing recognition that agricultural intensification and use of agrochemicals can adversely affect soil quality, modifying the number, d...
Conference Paper
La explotación intensiva del suelo producida por la agricultura convencional de las últimas décadas, con permanente extracción de nutrientes aceleró su degradación y disminuyó su fertilidad natural. De esta manera, los cambios producidos en las características edáficas podrían afectar el desarrollo de los hongos formadores de micorrizas arbusculare...
Article
Full-text available
En ocasiones los propágulos de hongos micorrícicos arbusculares (HMA) en los suelos pueden estar en bajo número o éstos no ser eficientes para aumentar el crecimiento de las plantas hospedadoras. La estrategia sería recurrir a la inoculación con HMA (nativos o no). Si la inoculación se realiza con HMA no nativos, debe considerarse que los suelos di...
Article
Full-text available
The propagules of arbuscular mycorrhizal fungi (AMF) in soils are sometimes insufficient in number or efficiency to increase the growth of host plants. That situation could be resolved by inoculating the soils with indigenous or nonindigenous AMF. However, it must take into account that soils may differ in their receptivity to the introduced AMF. T...
Article
We assessed colonization and mycorrhizal growth responses (MR) of wheatgrass and tall fescue growing with and without indigenous soil microorganisms (from Argentinean Pampas) as affected for inoculation with the non-indigenous arbuscular mycorrhizal fungi (AMF) Acaulospora longula or Glomus claroideum and for fertilization with superphosphate (SP)...
Article
Full-text available
Wheat (Triticum aestivum L.) yields of crops under no-tillage (NT) that have had broadcast phosphorus (P) applications do not differ from NT wheat crops that have had near-the-seed banded P applications. Although it is believed that an adequate colonization of roots by arbuscular mycorrhiza (AM) under NT could contibute to a better crop growth, the...
Article
Full-text available
Wheat (Triticum aestivum L.) yields of crops under no-tillage (NT) that have had broadcast phosphorus (P) applications do not differ from NT wheat crops that have had near-the-seed banded P applications. Although it is believed that an adequate colonization of roots by arbuscular mycorrhiza (AM) under NT could contibute to a better crop growth, the...
Article
The International Census of Marine Microbes (ICoMM), together with the South American and Caribbean Steering Committees of the Census of Marine Life program (CoML), supported the initiative of launching a regional ICoMM node (LACar ICoMM). This network aims at promoting discussions among scientists currently involved in marine microbial studies car...
Article
Full-text available
The International Census of Marine Microbes (ICoMM), together with the South American and Caribbean Steering Committees of the Census of Marine Life program (CoML), supported the initiative of launching a regional lCoMM node (LACar ICoMM). This network aims at promoting discussions among scientists currently involved in marine microbial studies car...
Article
Full-text available
Soil receptivity to arbuscular mycorrhizal (AM) fungi tests the capacity of a soil to favour the mycorrhizal development after inoculation. Thus, receptivity is a key criterion to assess whether the introduction of non-indigenous AM fungi will successfully improve plant growth. Two experiments were set up to investigate the receptivity of a moderat...
Article
Wheat production (Triticum aestivum L.) has increased across the world during last century with the intensification of agriculture. Phosphorus (P) fertilization is a common practice to improve wheat growth in Argentina. We investigate whether indigenous arbuscular mycorrhizal colonization (AMC) of hard red spring wheat is controlled by shoot P cont...
Article
The study assesses the effect of two phosphate (P) sources (soluble superphosphate (SP) and rock phosphate (RP)) on the arbuscular mycorrhizal potential (AMP), the root arbuscular mycorrhizal colonization (AMC) and the growth of tall fescue and wheatgrass of a grassland soil from Argentina. Mycorrhizal potential was assessed with soil samples colle...
Article
Full-text available
The aim of the study was to evaluate the influence of phosphorus (P) fertilizer placement (in-furrow incorporated or broadcast) on growth and root mycorrhizal colonization of wheat ( Triticum aestivum L). Experiments were set up during the 2001 and 2002 growing seasons at four productive sites of Balcarce and Lobería with different initial availabi...
Article
Full-text available
The aim of the study was to evaluate the influence of phosphorus (P) fertilizer placement (in-furrow incorporated or broadcast) on growth and root mycorrhizal colonization of wheat (Triticum aestivum L). Experiments were set up during the 2001 and 2002 growing seasons at four productive sites of Balcarce and Lobería with different initial availabil...
Article
Full-text available
A limitation for mycorrhizal research is the adequate control of arbuscular mycorrhizal fungi (AMF) which normally colonizes roots plants. For manipulating mycorrhizal population, it is necessary to develop an appropriate substrate free of AMF when they could be latter propagated. The substrate, however, should not be different from the used soil i...
Article
Full-text available
Our aims were to compare the techniques for determining root mycorrhizal infection proposed by Giovanetti-Mosse and by Trouvelot et al. Data were extracted from a glasshouse experiment where wheat plants were grown in pots filled with a Petrocalcic Paleudoll soil. Treatments were nitrogen and phosphorus fertilization levels and three sampling depth...
Article
Full-text available
The aim of this work was to characterize chemical and biologically three productive soils management systems: conventional agriculture (AC), intensive livestock (GI) and organic livestock (GO). The determinations were made seasonally from spring 1998 until winter 1999, on three adjacent experimental plots at Balcarce, Argentina. The lowest pH value...
Article
Full-text available
It has been reported that vesicular arbuscular micorrhizae (MVA) could improve P uptake by crops. The objective of this experiment was to measure the degree of spontaneous MVA of continuous spring wheat (Triticum aestivum L.) under different situations of soil phosphorus (P) availability and to evaluate its relation to the available soil P and to c...
Article
Full-text available
Introducción En el sudeste bonaerense, el trigo es el cultivo de invierno que ocupa la mayor superficie. El uso más intenso del suelo en los últimos años ha resultado en una disminución del contenido de materia orgánica (MO), y por consiguiente, se observa una respuesta generalizada al agregado de nitrógeno (N) en trigo, particularmente bajo siembr...
Article
Full-text available
-1 . Colonization of G.claroideum in tall fescue inoculated plants growing within the formaldehyde disinfected soil reached about 30 %, being three fold higher than native mycorrhizal plants. Formaldehyde did not negatively affect tall fescue and wheatgrass growth. In addition, it showed both indigenous and G. claroideum mycorrhizal benefit. Formal...

Questions

Questions (2)
Question
Dear reserachers: Has anyone used the Soil DNA Extraction Kit 4992288 DP336-02 TIANamp SOIL DNA x 50?
Could you please let me know the efficiency and effectiveness of the kit?
Fernanda
Question
Dear reserachers: Has anyone used the Soil DNA Extraction Kit (SLD050, or SLD100 https://geneaid.com/Genomic-DNA-Purification/SLD, made in Taiwan)?
Could you please let me know the efficiency and effectiveness of the kit?
Fernanda

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