Distribución de bacterias potencialmente fijadoras de nitrógeno y su relación con parámetros fisicoquímicos en suelos con tres coberturas vegetales en el sur de la Amazonia colombiana

Mantilla-Paredes, Andrea J.; Cardona, Gladys Inés; Peña‐Venegas, Clara P.; Murcia, Uriel G.; Rodríguez, M. A. Ávalos; Zambrano, María Mercedes

doi:10.15517/rbt.v57i4.5436

Cited by 12 publications

(10 citation statements)

References 25 publications

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“…Para prevenir estos eventos, frecuentemente se utilizan antibióticos de manera indiscriminada, lo que provoca resistencia de múltiples microorganismos patógenos en los estanques de cultivo (Vine et al 2006, Castillo-Machalskis et al 2007, por lo que el uso de probióticos representa una alternativa que puede sustituir el uso de aquellos (Balcá-zar et al 2006) y genera a su vez un mejoramiento de la supervivencia y crecimiento de los organismos. Para la selección de probióticos, es común realizar bioensayos de antagonismo in vitro, en donde patógenos son expuestos a las cepas candidatas a probióticos (Balcázar et al 2006, Mantilla-Paredes et al 2009). En el presente estudio, se seleccionaron tres cepas potencialmente probióticas por presentar actividad antagónica contra Vibrio harveyi y V. alginolyticus (Lactobacillus sp., cepa NS61; P. aeruginosa, cepa YC58 y B. cepacia, cepa Y021).…”

Section: Discussionunclassified

Efecto de bacterias probióticas en el cultivo larvario del ostión de placer Crassostrea corteziensis (Bivalvia: Ostreidae)

Campa‐Córdova¹,

Luna‐González²,

Mazón‐Suástegui³

et al. 2010

RBT

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Efecto de bacterias probióticas en el cultivo larvario del ostión de placerCrassostrea corteziensis (Bivalvia: Ostreidae) Abstract: Effect of probiotic bacteria on survival and growth of Cortez oyster larvae, Crassostrea corteziensis (Bivalvia: Ostreidae). Disease control problems have major constraints in aquaculture production, and the use of probiotics in larviculture is a valid alternative to antibiotics. This study analyzed the effect of probiotic bacteria on survival and final size of Cortez oyster larvae Crassostrea corteziensis. Two different probiotic concentrations were evaluated, 1x10 4 and 1x10 5 CFU/ml of Lactic acid bacteria (strain NS61) isolated from Nodipecten subnodosus, and bacilli isolated from the white leg shrimp, Litopenaeus vannamei (Pseudomonas aeruginosa, strain YC58) and C. corteziensis (Burkholderia cepacia, strain Y021). Bacteria were added directly into culture tanks, starting the bioassays from veliger to pediveliger stages as follows: (1) Control, without probiotics; (2) lactic acid bacteria (Lb); (3) bacilli mix (Mb) in a proportion 1:1. Results showed a higher larval survival with Lb and Mb at a dose of 1x10 4 CFU/ml compared to the control group. Larvae exposed to Mb at 1x10 5 CFU/ml showed higher survival than Lb and control. Larval final size was not significantly increased with the tested probiotics, but larvae treated with Lb at 1x10 5 CFU/ml showed less survival rate than those treated at 1x10 4 CFU/ml. This study showed the beneficial effect of these probiotics, added individually or mixed in C. corteziensis larvae culture. Rev. Biol. Trop. 59 (1): 183-191. Epub 2011 March 01.

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Section: Discussionunclassified

Efecto de bacterias probióticas en el cultivo larvario del ostión de placer Crassostrea corteziensis (Bivalvia: Ostreidae)

Campa‐Córdova¹,

Luna‐González²,

Mazón‐Suástegui³

et al. 2010

RBT

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“…This showed that there is a relationship between N fixation activity and ACC-deaminase activity. Based on several studies of bacteria capable of growing on Burk N-free media indicated that bacteria capable of fixing nitrogen (Ding at al, 2005;Döbereiner and Pedrosa, 1987;Döbereiner et al 1995, Mantilla-Paredes et al 2009, Sgroy et al, 2009Silva dan Melloni, 2011 can form the pellicle (Lea-Madi et al 1988;da Silva et al, 2013), can produce ammonium (Shanmugam and Valentine, 1975;Saribay, 2003) and have nitrogenase activity ( da Silva et al, 2013;Dilworth, 1966;Ueda et al 1995;Ohkuma et al 1996;Widmer et al 1999;Kirshtein et al 1991;Garbeva et al 2001;Sessitsch et al 2005;Reiter et al ;Chelius and Triplett, 2001). …”

Section: Resultsmentioning

confidence: 99%

Potency of Bacillus spp from Potato Rhizosphere as Active Ingredients for Biostimulant Formulation

Kesaulya¹,

Virgowati²,

Celvia³

2017

MAS

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Bacteria that colonized plant roots can be identify, characterify and tested for their ability to stimulate plant growth. The purpose of this research is to know the ability of Bacillus spp bacteria as active ingredient of biostimulant formulation which aims to stimulate the growth of plants. Bacillus spp bacteria derived from rooting potato plants tested its ability to dissolve phosphate, N fixation, producing IAA, GA, siderophore and HCN. The results showed different abilities in producing growth-promoting compounds from each tested strain. Bacillus niabensis Strain PT-32-1, Bacillus subtilis Strain SWI16b, Bacillus mojavensis Strain JCEN3, Bacillus subtilis Strain HPC21, Bacillus cereus Strain HY, and Bacillus moyavensis UCMB 5075 can be utilized as an active ingredient formulation biostimulant plant growth promoting non pathogenic.

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“…() in Brazil and Mantilla‐Paredes et al. () in Colombia, although neither study assessed the mechanisms driving such pattern. Contrasting responses of invertebrates and microbes to deforestation were also evident when organisms were grouped according to their trophic function (Fig.…”

Section: Discussionmentioning

confidence: 98%

Amazonian deforestation and soil biodiversity

Franco

Sobral

Silva

et al. 2019

Conservation Biology

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Clearance and perturbation of Amazonian forests are one of the greatest threats to tropical biodiversity conservation of our times. A better understanding of how soil communities respond to Amazonian deforestation is crucially needed to inform policy interventions that effectively protect biodiversity and the essential ecosystem services it provides. We assessed the impact of deforestation and ecosystem conversion to arable land on Amazonian soil biodiversity through a meta‐analysis. We analyzed 274 pairwise comparisons of soil biodiversity in Amazonian primary forests and sites under different stages of deforestation and land‐use conversion: disturbed (wildfire and selective logging) and slash‐and‐burnt forests, pastures, and cropping systems. Overall, 60% and 51% of responses of soil macrofauna and microbial community attributes (i.e., abundance, biomass, richness, and diversity indexes) to deforestation were negative, respectively. We found few studies on mesofauna (e.g., microarthropods) and microfauna (e.g., protozoa and nematodes), so those groups could not be analyzed. Macrofauna abundance and biomass were more vulnerable to the displacement of forests by pastures than by agricultural fields, whereas microbes showed the opposite pattern. Effects of Amazonian deforestation on macrofauna were more detrimental at sites with mean annual precipitation >1900 mm, and higher losses of microbes occurred in highly acidic soils (pH < 4.5). Limited geographic coverage, omission of meso‐ and microfauna, and low taxonomic resolution were main factors impairing generalizations from the data set. Few studies assessed the impacts of within‐forest disturbance (wildfires and selective logging) on soil species in Amazonia, where logging operations rapidly expand across public lands and more frequent severe dry seasons are increasing the prevalence of wildfires.

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Distribución de bacterias potencialmente fijadoras de nitrógeno y su relación con parámetros fisicoquímicos en suelos con tres coberturas vegetales en el sur de la Amazonia colombiana

Cited by 12 publications

References 25 publications

Efecto de bacterias probióticas en el cultivo larvario del ostión de placer Crassostrea corteziensis (Bivalvia: Ostreidae)

Efecto de bacterias probióticas en el cultivo larvario del ostión de placer Crassostrea corteziensis (Bivalvia: Ostreidae)

Potency of Bacillus spp from Potato Rhizosphere as Active Ingredients for Biostimulant Formulation

Amazonian deforestation and soil biodiversity

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