Metabolic potential of endophytic bacteria

Brader, Günter; Compant, Stéphane; Mitter, Birgit; Trognitz, Friederike; Sessitsch, Angela

doi:10.1016/j.copbio.2013.09.012

Cited by 512 publications

(295 citation statements)

References 66 publications

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“…Various studies in the literature have reported that rhizospheric microorganisms, especially rhizobacteria, show excellent results in promoting plant growth (Ahemad and Kibret, 2014;Lugtenberg and Kamilova, 2009;Myresiotis et al, 2014;Prashar et al, 2014). Another extensively studied group is the endophytic microorganisms, similar to the rhizobacteria, with the potential for use in various other economic crops (Brader et al, 2014;Hallmann et al, 1997;Rosenblueth and Martinez Romero, 2006;Shen et al, 2014). Yeasts are unicellular fungi that can also be found in the rhizosphere of plants, but in smaller numbers compared to bacteria and filamentous fungi; however, little information is known about their function in this ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Temperature, pH and carbon source affect drastically indole acetic acid production of plant growth promoting yeasts

Scarcella

Bizarria

Bastos

et al. 2017

Braz. J. Chem. Eng.

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-Rhizosphere and phylloplane yeasts are able to produce phytohormones, acting as potential plant growth promoters. The aim of this study was to analyze the production of indole acetic acid (IAA) by yeasts using variations in the culture conditions. The yeasts evaluated were Rhodotorula mucilaginosa and Trichosporon asahii, which were cultivated in a potato broth medium with 20 g/L of glucose or sucrose as the carbon source. The cultivation was carried out at 22°C, 25°C or 30°C, and the initial pH was adjusted to 3.0, 4.5 or 6.0. The cultures were analyzed using a colorimetric technique with Salkowski reagent. The cell count was determined in all of the conditions. The results for T. asahii showed that IAA production with sucrose was superior at pH 6.0, and that with glucose was superior at pH 4.5. These results indicate an association between the carbon source and medium pH. Rh. mucilaginosa (2F32) presented a high IAA production when compared with T. asahii (3S44 and 4C06) or even with other microorganisms referenced in the literature. The highest production (0.655 g/L) was obtained at pH 6.0 with glucose as the carbon source. Variations in the culture conditions did not affect the cell growth of the yeasts.

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Section: Introductionmentioning

confidence: 99%

Temperature, pH and carbon source affect drastically indole acetic acid production of plant growth promoting yeasts

Scarcella

Bizarria

Bastos

et al. 2017

Braz. J. Chem. Eng.

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“…Unlike of pathogenic bacteria these neither show any disease symptom on plant nor change the morphology and internal structure of plants. Association between plants and endophytic bacteria is mediated by organic compounds released from both bacterial and host species (Brader et al, 2014). Endophytic bacteria affect the plant growth through biological nitrogen fixation (Compant et al, 2005a), decreasing plant ethylene level, increasing bioavailability of phosphorus and micronutrients as well and production of volatile organic compounds (Kai et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Microbial Assisted Foliar Feeding of Micronutrients Enhance Growth, Yield and Biofortification of Wheat

Yaseen¹

2018

IJAB

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Micronutrient malnutrition caused by inadequate dietary intake is a global nutritional problem of more than half of world's population. Fortification is expensive while biofotification is a natural approach and considered better than fortification. Biofotification of wheat with micronutrients especially zinc (Zn) and iron (Fe) is a relatively new public approach to control deficiencies of these nutrients in flour/diet in developing countries. This research study is comprised of results of field experiment to examine the effects of foliar feeding of micronutrients along with endophytic bacteria on growth, yield and nutrient uptake of wheat. Compared with control (without foliar feeding of micronutrients), foliar application on wheat with endophytic bacteria increased the plant height, leaf area, spike length and plant biomass by 13.53, 41.67, 55.07 and 42.50% respectively. It was observed that Zn and Fe concentration enhanced in grains up to 37.93 and 10.14% respectively with the combine application of micropower and endophytic bacteria. These results elucidate that foliar feeding of micronutrients effectively biofortified wheat grains. Furthermore, foliar feeding of micronutrients along with endophytic bacteria could be used as an easy, quick and cost-effective approach to enrich wheat flour with health essential micronutrients for correcting malnutrition.

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“…Ademais, os endofíticos contribuem para a produção de metabólitos nos vegetais, sobretudo de antimicrobianos em plantas de uso medicinal. Sob esse âmbito, esses microorganismos constituem-se em importante e promissora fonte de prospecção de substâncias bioativas (REINHOLD-HUREK;HUREK, 2011;BRADER et al, 2014).…”

Section: Resultsunclassified

TRIAGEM DE POTENCIALIDADES BIOTECNÓLOGICAS DE BACTÉRIAS ENDOFÍTICAS ISOLADAS DE FOLHAS Gossypium hirsutum L.

Rodrigues¹,

Oliveira²,

Soares³

et al. 2017

Enci Bio

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RESUMOGossypium hirsutum L. consiste na espécie de algodão mais cultivada em todo o mundo, apresentando importante significância histórica e econômica, principalmente no continente americano. Além das típicas pragas que afetam amplamente o algodoeiro, sabe-se que a planta exibe uma diversa comunidade microbiana simbiótica. Micro-organismos endofíticos são definidos como aqueles que passam parte ou todo o período de vida colonizando assintomaticamente tecidos vegetais e, por vários mecanismos, podem promover o crescimento do hospedeiro e participar de sua proteção frente à patógenos. O objetivo do atual estudo foi o isolamento e avaliação qualitativa de diversas potencialidades biotecnológicas de bactérias endofíticas isoladas de folha de algodão. Nove morfotipos bacterianos foram isolados, com 77,7% exibindo positividade para pelo menos um dos testes de triagem. O mesmo percentual de isolados (77,7%) foi capaz de gerar ácido-indolacético (AIA), 66,6% solubilizaram fosfato e 55,5% cresceram em meio livre de nitrogênio. Dois isolados, AL1 e AL8, geraram exoenzimas extracelularmente e apenas um morfotipo, AL1, foi hábil em inibir o crescimento de uma das cepaspadrão bacterianas empregadas como indicadoras. Os resultados são promissores para a condução de estudos futuros que consolidaram essas possíveis aplicações das bactérias endofíticas de algodão sobre as mais diversas áreas no campo biotecnológico. PALAVRAS-CHAVE: algodão, bactérias endofíticas, bioprospecção.

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Metabolic potential of endophytic bacteria

Abstract: Graphical abstract

Cited by 512 publications

References 66 publications

Temperature, pH and carbon source affect drastically indole acetic acid production of plant growth promoting yeasts

Temperature, pH and carbon source affect drastically indole acetic acid production of plant growth promoting yeasts

Microbial Assisted Foliar Feeding of Micronutrients Enhance Growth, Yield and Biofortification of Wheat

TRIAGEM DE POTENCIALIDADES BIOTECNÓLOGICAS DE BACTÉRIAS ENDOFÍTICAS ISOLADAS DE FOLHAS Gossypium hirsutum L.

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