Evaluation of genetic diversity and plant growth promoting activities of nitrogen-fixing bacilli isolated from rice fields in South Brazil

Beneduzi, Anelise; Peres, Daiane; Vargas, Luciano Kayser; Bodanese‐Zanettini, Maria Helena; Passaglia, Luciane Maria Pereira

doi:10.1016/j.apsoil.2008.01.006

Cited by 186 publications

(98 citation statements)

References 40 publications

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“…In this regard, one of the most common and naturally-occurring plant hormone is the indoleacetic acid (IAA). Recently, it has been demonstrated that Bacillus strains isolated from rice synthesized IAA in concentrations from 0.1 to 30 lg/mL [3]. Bacterial strains isolated in this work produced IAA in a range from 4.0 to 24.3 lg/mL, which are within the range reported for Bacillus spp.…”

supporting

confidence: 84%

“…Bacillus species) represent a variety of rhizospheric and endophytic microorganisms, which stimulate host growth through the activation of different mechanisms in the plant cell [1]. In particular, Bacillus species have the ability to solubilize different chemicals, they are also involved in the synthesis of auxins, productions of siderophores, nitrogen fixation, and in the synthesis of bacteriocins [2][3][4].…”

mentioning

confidence: 99%

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Isolation of Mexican Bacillus Species and Their Effects in Promoting Growth of Chili Pepper (Capsicum annuum L. cv Jalapeño)

Peña-Yam¹,

Ruíz-Sánchez²,

Barboza‐Corona

et al. 2016

Indian J Microbiol

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The purpose of this work was to isolate and identify native bacteria from plants collected in the State of Yucatán, México with the ability to promote growth of chili pepper (Capsicum annuum L. cv Jalapeño). We identified nine bacterial isolates that belong to five species of Bacillus (i.e. Bacillus subtilis, B. flexus, B. cereus, B. megaterium and B. endophyticus) that produced indoleacetic acid (4.0-24.3 lg/mL) with solubilization index of 1.3-1.6. All the bacterial isolates were evaluated based on their ability to promote growth of chili pepper. Plants inoculated with B. subtilis ITC-N67 showed an increase in stem diameter and root volume, whereas inoculation with B. cereus ITC-BL18 increased the number of flower buds, fresh biomass of roots and total fresh biomass. Conversely, B. flexus ITC-P4 and B. flexus ITC-P22 showed deleterious effect on root volume and total biomass. In summary, our data showed that native B. cereus TC-BL18 and B. subtilis ITC-N67 have potential to be used as growth promoting microorganism for chili pepper, particularly in the state of Yucatán, México.

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supporting

confidence: 84%

mentioning

confidence: 99%

Isolation of Mexican Bacillus Species and Their Effects in Promoting Growth of Chili Pepper (Capsicum annuum L. cv Jalapeño)

Peña-Yam¹,

Ruíz-Sánchez²,

Barboza‐Corona

et al. 2016

Indian J Microbiol

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“…isolates improved plant growth, with the best results obtained under the insoluble P condition. The favorable effects of PGPB inoculation on plant growth have also been extensively reported in others works (Beneduzi et al 2008;Sasaki et al 2010;Santi Ferrara et al 2011;Ambrosini et al 2012;Glick 2012;Arruda et al 2013;Souza et al 2013). Plant growth-promoting bacteria can affect host plants directly or indirectly.…”

Section: Efficiency Of Growth Promotion By Bacterial Inoculation Of Bmentioning

confidence: 87%

“…Phosphate-solubilizing bacteria are able to solubilize phosphate inorganic compounds, for example, tricalcium phosphate, by the production of organic acids (Chen et al 2006). Similarly low numbers of phosphate-solubilizing bacteria have been documented by other studies (Beneduzi et al 2008;Ambrosini et al 2012;Granada et al 2013;Souza et al 2013). …”

Section: Sã O Borjamentioning

confidence: 98%

Screening of plant growth promoting bacteria associated with barley plants (Hordeum vulgare L.) cultivated in South Brazil

Pontes

Souza

Granada³

et al. 2015

Biota Neotrop.

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The occurrence of associations between bacteria and plant roots may be beneficial, neutral or detrimental. Plant growth promoting (PGP) bacteria form a heterogeneous group of beneficial microorganisms that can be found in the rhizosphere, the root surfaces or in association with host plant. The aim of this study was to isolate and characterize PGP bacteria associated to barley plants (Hordeum vulgare L.) aiming a future application as agricultural inoculant. One hundred and sixty bacterial strains were isolated from roots or rhizospheric soil of barley based on their growth in nitrogen-free selective media. They were evaluated for their ability to produce indolic compounds (ICs) and siderophores, and to solubilize tricalcium phosphate in in vitro assays. Most of them (74%) were able to synthesize ICs in the presence of the precursor L-tryptophan, while 57% of the isolates produced siderophores in Fe-limited liquid medium, and 17% were able to solubilize tricalcium phosphate.

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“…Ademais, a identificação da capacidade de expressão de características relacionadas à promoção do crescimento vegetal por BPCVs com base em ensaios realizados in vitro, não apresenta necessariamente correlação com a expressão destes efeitos nas interações in vivo (SMYTH et al, 2011). Apesar da dificuldade na identificação de estirpes elite de BPCVs, com capacidade real de atuar positivamente sobre o desenvolvimento vegetal em condições de cultivo comercial, as etapas de isolamento, caracterização bioquímica e ensaios preliminares de inoculação não podem ser negligenciadas (Figura 5), devido ao grande número de isolados geralmente obtidos nos estudos de bioprospecção (BENEDUZI et al, 2008;GOES et al, 2012). Mesmo considerando a grande demanda de esforço e tempo para a identificação de estirpes bacterianas elite, a diversidade de formulações comerciais fundamentadas no sistema simbiótico rizóbios-leguminosas e a eficiência alcançada por estes bioprodutos para o suprimento de nitrogênio vem trazendo vantagens econômicas, ambientais e sociais que ocorrem pela substituição de agroquímicos por estes produtos biotecnológicos (BALA et al, 2001;DEEPA et al, 2010;NIEVAS et al, 2012).…”

Section: Isolamento De Bpcvsunclassified

Aplicações da biodiversidade bacteriana do solo para a sustentabilidade da agricultura

Oliveira¹,

Costa²,

Ferreira³

et al. 2014

BBR - Biochem. Biotechnol.

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Brazilian agribusiness is of great competitivity mostly due to the lack of government subsidies and the historical efforts made in research and development by the public institutes and Universities. Nevertheless the Brazilian agriculture is fundamented in the use of fertilizers and agrochemicals that needs to be imported in huge amounts to supply the Brazilian farmers. In this sense, the safety and sustainability of the Brazilian agribusiness is subjected to the supply of these inputs and to the prices prevailing on the international market. In addition, a new concern is emerging in the global society, which has increased demands for food, feed, and energy that must be provided by the agriculture, although new sustainable farming practices urge to be implemented. Natural relationships between plants and soil microbes are on the heart of the matter, with growing scientific data supporting the use of the former-potential plant-bacteria associations in large scale to increase the crop productivity and hence the production of food and energy. The total substitution of nitrogen fertilizers in soybean crops by the biological nitrogen fixation held by rhizobia corroborates the efficiency of such associations, and point out for the need to expand this and other natural mechanisms directed to provide nutrients to cereals and other nonleguminous crops. To achieve this, much effort is also needed to reach a better understanding of the mechanisms controlling plant-bacteria associations, and to develop biofertilizer formulations presenting a high efficiency under a myriad of field conditions, as those found in Brazil. Biotechnological approaches aimed to reach this goal are reviewed and discussed throughout this manuscript. Keywords:Biofertilizer, plant growth-promoting bacteria, plant nutrition, plant inoculation. __________________________Universidade Estadual de Londrina, Departamento de Bioquímica e Biotecnologia, Rodovia Celso Garcia Cid (PR 445), km 380, Campus Universitário, Cx. Postal 6001, Londrina, Paraná, Brasil. *Autor para correspondência: Telefone: (43) 33715473, Fax: (43) 33714440, email: almoliva@uel.br RESUMO O agronegócio brasileiro possui grande competitividade internacional, principalmente pelos esforços historicamente dispendidos por institutos públicos de pesquisa e Universidades. No entanto, muito dos avanços obtidos pelo agronegócio brasileiro é decorrente do uso em larga escala de fertilizantes e agroquímicos, que devem necessariamente ser importados em grandes quantidades para suprir a demanda dos agricultores brasileiros. Neste sentido, a segurança e a sustentabilidade do agronegócio brasileiro estão ameaçadas pela disponibilidade e susceptibilidade destes insumos aos preços praticados pelo mercado internacional. Além disso, a sociedade global apresenta uma nova apreensão quanto à necessidade de alcançar produtividades mais elevadas e de uma maneira mais sustentável, para prover a população crescente com alimentos e energia. As relações naturais existentes entre as plantas e a microbio...

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Evaluation of genetic diversity and plant growth promoting activities of nitrogen-fixing bacilli isolated from rice fields in South Brazil

Cited by 186 publications

References 40 publications

Isolation of Mexican Bacillus Species and Their Effects in Promoting Growth of Chili Pepper (Capsicum annuum L. cv Jalapeño)

Isolation of Mexican Bacillus Species and Their Effects in Promoting Growth of Chili Pepper (Capsicum annuum L. cv Jalapeño)

Screening of plant growth promoting bacteria associated with barley plants (Hordeum vulgare L.) cultivated in South Brazil

Aplicações da biodiversidade bacteriana do solo para a sustentabilidade da agricultura

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