An AM fungus and a PGPR intensify the adverse effects of salinity on the stability of rhizosphere soil aggregates of Lactuca sativa

Kohler, Josef; Caravaca, F.; Roldán, A.

doi:10.1016/j.soilbio.2009.11.021

Cited by 143 publications

(41 citation statements)

References 26 publications

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“…Some strains of Azotobacter are able to grow at NaCl concentrations as high as 4 % and others cannot grow, when NaCl concentration is above 6%. The result was in accordance with the Kohler and Caravaca, (2010). During the course of this study it was also shown that the polysaccharide production was minimum in the 4 % salt concentration.…”

Section: Resultssupporting

confidence: 89%

“…The basic units of soil structure, named aggregates, comprise solid material and pores. These aggregates determine the mechanical and physical properties of soil such as retention and movement of water, aeration, and temperature (Kohler and Caravaca, 2010). Plant roots contribute to soil organic material, and thereby to soil aggregate stability, directly through the root material itself and indirectly through stimulation of microbial activity in the rhizosphere.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Selection of Hyper Exopolysaccharide Producing and Cyst Forming Azotobacter Isolates for Better Survival under Stress Conditions

Sivapriya¹,

Priya²

2017

Int.J.Curr.Microbiol.App.Sci

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Selection of Hyper Exopolysaccharide Producing and Cyst Forming Azotobacter Isolates for Better Survival under Stress Conditions

Sivapriya¹,

Priya²

2017

Int.J.Curr.Microbiol.App.Sci

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“…It is reported that GRSP may influence soil fertility due to its complex with 0.04-8.8% iron [3], remedy soil contamination by sequestering potentially toxic elements, such as Zn, Cu, Cd, Pb [4] and alleviate biotic and abiotic stresses [5,6]. GRSP has been suggested to be used as biological indicators of soil quality [2].…”

Section: Which Contains Two Kinds Of Protein Easily Extractable Brspmentioning

confidence: 99%

Seasonal and Spatial Distribution of Glomalin-Related Soil Protein and Sequestered Metals Affected by AM Fungi in the Citrus Rizosphere

MingyuanWang¹,

Liu²,

Wang³

2017

APAR

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In a controlled pot experiment, Poncirus trifoliate and Citrus reticulate seedlings were inoculated with arbuscular mycorrhizal (AM) fungi, Glomus epigaeum. Seasonal (June, Semptember, December and March) and spatial distribution (0-2 cm, 2-4 cm and 4-8 cm away from the taproot in horizon) of glomalin-related soil protein (GRSP) and sequestered heavy metals was studied.The results showed that the hyphal length was in the following order 0-2 cm>2-4 cm>4-8 cm in horizontal distribution, which was the highest in March, lowest in December. The easily extractable Bradford-reactive soil protein (EE-BRSP) and total Bradford-reactive soil protein (T-BRSP) arranged between 1.0-2.6 mg g -1 and 2.0-5.8 mg g -1 DW soil in the rizosphere of P. trifoliate, 1.3-2.5 mg g -1 and 2.5-5.0 mg g -1 DW soil in C.reticulate. Both EE-BRSP and T-BRSP in June were significantly higher than those in December. However, the two BRSPs did not decrease with the extension of distance in horizon (0-8 cm), but ranked at 2-4 cm> 4-8 cm > 0-2 cm. The amounts of Fe bound to GRSP varied between 5.11 mg g -1 DW to 9.20mg g -1 DW GRSP, and Mn 76.28-244.48 ugg -1 DW GRSP, Cu 18.11-91.00 ugg -1 DW GRSP, and Zn 62.97-315.83 ugg -1 DW GRSP. All the heavy metals (HMs) bound to GRSP were highest in June, lowest in December. In horizontal distribution, those HMs were followed by 2-4 cm>4-8 cm>0-2 cm, consistent with EE-BRSP and T-BRSP. Our results demonstrated that the seasonal and spatial distribution of GRSP is significantly different in horizontal soil. Keywords:

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“…Durante la aclimatación, las plantas deben aumentar la absorción de agua y nutrientes, así como su tasa fotosintética. En diferentes estudios que se han realizado inoculando HFMA y BPCV de forma simple y combinada (Marulanda et al 2006;Kohler et al 2010;Ordookhani et al 2010;Liu et al 2012; Dohroo y Sharma 2012), se ha podido observar que la interacción entre estos microorganismos podría ser muy útil para reducir el efecto negativo que representa un estrés biótico o abiótico sobre el crecimiento y desarrollo de las plantas, tal y como se pudo observar con los resultados obtenidos en este estudio. Aunque las inoculaciones simples podrían ser útiles en ciertas condiciones, las combinadas con HFMA y BPCV han demostrado ser más eficientes en la toma de agua y la absorción de nutrientes por parte de las plantas (Nadeem et al 2013).…”

Section: Microbiología Del Suelounclassified

Efecto de la inoculación simple y combinada con Hongos Formadores de Micorriza Arbuscular (HFMA) y Rizobacterias Promotoras de Crecimiento Vegetal (BPCV) en plántulas micropropagadas de mora (Rubus glaucus L.)

Moncada

Gómez

Zapata-Narváez

et al. 2015

CTA

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<p>El objetivo de este estudio fue la obtención de plántulas de tres ecotipos de mora (monterrico, sin espinas y castilla), procedentes de cultivos in vitro inoculados en forma individual y combinada con el Hongo Formador de Micorriza Arbuscular (HFMA) Glomus sp. (GEV02) y las Rizobacterias Promotoras de Crecimiento Vegetal Pseudomonas migulae cepa Pf014 y Bacillus amyloliquefaciens cepa Bs006. Las variables de crecimiento evaluadas fueron longitud aérea y radical (cm), peso fresco y seco foliar y radical (g), así como volumen radical (cm3) y área foliar (cm2). A nivel simbiótico, se midió el porcentaje de colonización por parte del HFMA. Los resultados obtenidos muestran un posible sinergismo entre GEV02 y las rizobacterias evaluadas en forma combinada ya que estas presentaron los mayores valores en todas las variables analizadas. Con el uso de la mezcla de estos microorganismos se observó un mejor establecimiento, desarrollo y vigor de las plántulas de mora en los tres ecotipos considerados y se mejoró su supervivencia (≥80 %) en las etapas de endurecimiento y aclimatación.</p>

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An AM fungus and a PGPR intensify the adverse effects of salinity on the stability of rhizosphere soil aggregates of Lactuca sativa

Cited by 143 publications

References 26 publications

Selection of Hyper Exopolysaccharide Producing and Cyst Forming Azotobacter Isolates for Better Survival under Stress Conditions

Selection of Hyper Exopolysaccharide Producing and Cyst Forming Azotobacter Isolates for Better Survival under Stress Conditions

Seasonal and Spatial Distribution of Glomalin-Related Soil Protein and Sequestered Metals Affected by AM Fungi in the Citrus Rizosphere

Efecto de la inoculación simple y combinada con Hongos Formadores de Micorriza Arbuscular (HFMA) y Rizobacterias Promotoras de Crecimiento Vegetal (BPCV) en plántulas micropropagadas de mora (Rubus glaucus L.)

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