Cell-free culture medium of Burkholderia cepacia improves seed germination and seedling growth in maize (Zea mays) and rice (Oryza sativa)

Hernández-Rodríguez, Annia; Heydrich-Pérez, Mayra; Diallo, Bilo; Jaziri, Mondher El; Vandeputte, Olivier M.

doi:10.1007/s10725-009-9433-5

Cited by 21 publications

(10 citation statements)

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“…y Burkholderia sp. registro 2,56 g de PSA, dado que sus SPCV aceleran y aumentan la capacidad de la raíz para absorber el FN reducido al 50% y otros minerales del suelo y ello le permite al maíz crecer rápido y sanamente (Armenta et al, 2010;Hernández-Rodríguez et al, 2010;Martínez et al, 2011). (Arellano et al, 2008;Armenta et al, 2010;Piromyou et al, 2011) en consecuencia hubo un incremento en la longitud y número de raíces secundarias de la gramínea (Wong-Villareal y CaballeroMellado, 2010), al igual que el maíz tratado, solo con alguno de los dos géneros de BPCV y cuyos valores de PSR en ese maíz fueron estadísticamente diferentes y significativos, en especial el maíz tratado con Burkholderia sp.…”

Section: Tablaunclassified

“…con 0,63 g; comparado con el valor del PSR del maíz con 0,60 g y de su homólogo sin inocular alimentado con el FN al 100% usado como CR, igual al valor de 0,59 g del PSR del maíz tratado únicamente con Azotobacter sp. lo que evidentemente mostró que este género de BPCV aumento la actividad radical para mejorar y optimizar la absorción radical del FN reducido al 50% (Aguirre-Medina et al, 2009;Hernández-Rodríguez et al, 2010). En la tabla 4, a floración se muestra la respuesta positiva del maíz a 62 días después de la siembra, inoculado con Burkholderia sp.…”

Section: Tablaunclassified

“…alcanzó 9,99 g de PSA y el maíz inoculado únicamente con Azotobacter sp. alcanzó un PSA de 8,54 g, lo que indica que estas BPCV individualmente y en combinación transformaron los exudados de la raíz del maíz en SPCV; y así optimizaron la absorción del FN, con el consecuente aumento en su biomasa (Wong-Villareal y Caballero-Mellado, 2010;Hernández-Rodríguez et al, 2010), en ambos casos estos valores fueron estadísticamente diferentes y significativos comparados con el maíz con un PSA de 6,28 g sin inocular con el FN al 100% usado como CR. El maíz tratado con los dos géneros de BPCV alcanzó un PSR de 7,03 g, lo que indica que Azotobacter sp.…”

Section: Tablaunclassified

“…Aguirre-Medina et al (2009) demostraron la acción benéfica de la inoculación individual y en mezcla de B. phytofirman y Pseudomonas putida en maíz, al mejorar su funcionamiento radical en la absorción del FN. Al igual que Hernández-Rodríguez et al (2010), que investigaron que B. cepacia colonizo el tejido vegetal radical del maíz e indujo un crecimiento saludable. En ese sentido Piromyou et al (2011) probaron que Azotobacter sp.…”

Section: Introductionunclassified

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Respuesta del maíz (Zea mays L) a la inoculación con Azotobacter sp y Burkholderia sp a dosis reducida de fertilizante nitrogenado

et al. 2014

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Recibido 17 noviembre 2013. Aceptado 18 marzo 2014. ResumenLa respuesta positiva del maíz a la inoculación con bacterias promotoras de crecimiento vegetal (BPCV) como los géneros bacterianos: Azotobacter sp. y Burkholderia sp. endofita es una alternativa para la reducción y optimización de la dosis del fertilizante nitrogenado (FN) como el nitrato de amonio (NH 4 NO 3 ), recomendado para esta gramínea, sin afectar negativamente su crecimiento. El objetivo de este trabajo fue analizar la respuesta del maíz a la inoculación con Azotobacter sp. y Burkholderia sp. a la dosis 50% del FN. El experimento se realizó bajo un diseño experimental de bloques al azar, mediante las variables respuesta para analizar el efecto de BPCV en el maíz: porcentaje de germinación (%); la fenotípia aérea y radical; y la biomasa: peso fresco aéreo (PFA) y radical (PFR); el peso seco aéreo (PSA) y radical (PSR). Los resultados indicaron un efecto positivo de ambos géneros de BPCV en el maíz desde su germinación, a nivel de plántula y en floración. En el maíz coinoculado se registró un PSR de 7,03 g, valor estadísticamente significativo comparado con los 2,60 g de PSR del maíz sin inocular, alimentado con la dosis de FN recomendado, empleado como control relativo. Lo anterior sugiere una interacción sinérgica de Azotobacter sp. y Burkhoderia sp. en la síntesis de sustancias promotoras de crecimiento vegetal (SPCV) en maíz para optimizar la dosis reducida del FN y permitir su sano crecimiento. Palabras clave: colonización, rizósfera, absorción radical. AbstractThe positive maize response to inoculation with plant growth promoting bacteria (PGPB) as Azotobacter sp and Burkholderia sp an endophytic type, are an alternative to reduced and optimize nitrogen fertilizer (NF) dose, recommended for this plant, without adversely affect its growth. The aim of this study was to analyze maize respond to inoculation with Azotobacter sp and Burkholderia sp at the dose 50% of FN. Used an experimental design of randomized blocks. By response variables: percent germination (%), the shoot and root phenology: plant height (PH), root length (RL) and biomass: shoot fresh weight (SFW) and root fresh weight (RFW), the shoot dry weight (SDW) and root dry weight (RDW). The results indicated a positive maize respond to PGPB inoculation at germination, seedling and flowering level, reached a RDW of 7.03 g, statistically significant value compared with 2.60 g of RDW non inoculated maize feed with NF dose recommended regard as relative control (RC). This suggests a synergistic interaction among these PGPB in synthesis of plant growth promoting substances (PGPS) on maize, to optimize the reduced NF dose.

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Respuesta del maíz (Zea mays L) a la inoculación con Azotobacter sp y Burkholderia sp a dosis reducida de fertilizante nitrogenado

et al. 2014

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“…G. diazotrophicus produces auxins such as 3-indoleacetic acid (IAA) (Eskin et al, 2014), which highlights its potential even more. IAA has control over many important developmental processes in plants, including cell division and growth, vascular tissue differentiation, root initiation, apical dominance, phototrophic and gravitropic responses, flowering, fruit ripening, leaf senescence and leaf and fruit abscission (De Souza et al, 2015;Hernández-Rodríguez et al, 2010;Malekpoor Mansoorkhani et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of plant-growth promoting properties of Gluconacetobacter diazotrophicus and Gluconacetobacter sacchari isolated from sugarcane and tomato in West Central region of Colombia

Franco¹,

Marulanda²,

Galeano³

et al. 2017

Afr. J. Biotechnol.

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The genus Gluconacetobacter comprises different species with agricultural and industrial importance. This study aims at determining the presence of Gluconacetobacter diazotrophicus and Gluconacetobacter sacchari in sugarcane and tomato crops considering their potential biotechnological applications. Bacteria were isolated from roots, stems and leaf tissues and identified using phenotypic and biochemical evaluations, and molecular and phylogenetic analyses. Isolates were characterized by the production of indolic compounds, nitrogenase activity and phosphate solubilization. For this, G. diazotrophicus ATCC 49037 was used as the reference strain. The results showed that all isolates of native G. diazotrophicus exhibited equal or better phosphate solubilization index (SI) for CaCO 3 and AlPO 4 than reference strain. For G. sacchari, GIBI031 isolate displayed better SI for both phosphate sources and GIBI014 isolate had better SI only for AlPO 4 . G. diazotrophicus GIBI029 had a greater production of indolic compounds than ATCC 49037 strain in the presence of tryptophan. All isolates except G sacchari GIBI031, showed better nitrogenase activity than the control. These results constitute the first report confirming the presence of G. diazotrophicus and G. sacchari associated with sugarcane in Colombia. In addition, this is the first report on the presence of G. sacchari in tomato under natural conditions. Finally, one G. sacchari isolate presented nitrogenase activity despite the fact that this is a differential characteristic between G. diazotrophicus and G. sacchari. These findings have ecological significance and will advance research towards the evaluation of plant-soil interactions involving these bacteria in crops other than sugarcane. The isolates found are potential candidates for the development of novel biotechnological processes for production of new alternative biofertilizers considering the significant plant-growth promotion properties determined in this work.

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Faster acquisition of symbiotic partner by common mycorrhizal networks in early plant life stage

Varga

Kytöviita

2016

Ecosphere

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Abstract. Arbuscular mycorrhizal (AM) fungi usually improve plant performance yet our knowledge about their effects on seed germination and early plant establishment is very limited. We performed a factorial greenhouse experiment where the seeds from four low Arctic co-occurring mycorrhizal herbs (Antennaria dioica, Campanula rotundifolia, Sibbaldia procumbens, and Solidago virgaurea) were germinated alone or in the vicinity of an adult Sibbaldia plant with or without AM fungi; given either as spores or being present in a common mycorrhizal network (CMN). Three different AM fungal species were examined to assess species-specific differences in symbiont acquisition rate. Of the four plant species investigated, the presence of AM fungi affected seed germination only in Campanula and this effect was dependent on whether the AM fungi were present in the soil as spores or as a CMN. Overall, after germination, developing seedlings showed AM fungal colonization in their roots as soon as 2 d after cotyledon emergence. Our results show that CMN may provide germinating seedlings faster acquisition of the AM fungal partner in comparison to acquisition from spores. Furthermore, there were AM species-specific differences in the symbiont acquisition rate highlighting the importance of species identity in AM interactions. These findings suggest that while AM fungi may not play a fundamental role during seed germination, plant community composition may be affected by the species-specific AM fungal effects on seedling establishment and CMN acquisition.

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Cell-free culture medium of Burkholderia cepacia improves seed germination and seedling growth in maize (Zea mays) and rice (Oryza sativa)

Cited by 21 publications

References 22 publications

Respuesta del maíz (Zea mays L) a la inoculación con Azotobacter sp y Burkholderia sp a dosis reducida de fertilizante nitrogenado

Respuesta del maíz (Zea mays L) a la inoculación con Azotobacter sp y Burkholderia sp a dosis reducida de fertilizante nitrogenado

Evaluation of plant-growth promoting properties of Gluconacetobacter diazotrophicus and Gluconacetobacter sacchari isolated from sugarcane and tomato in West Central region of Colombia

Faster acquisition of symbiotic partner by common mycorrhizal networks in early plant life stage

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