Research Progress and Perspectives of Nitrogen Fixing Bacterium,<i>Gluconacetobacter diazotrophicus</i>, in Monocot Plants

Eskin, Nikita; Vessey, Kirstan A.; Tian, Lining

doi:10.1155/2014/208383

Cited by 61 publications

(36 citation statements)

References 106 publications

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“…However, there are a number of key attributes that distinguish this bacterium from others and point to the reasons why it is able to achieve the types and levels of impact demonstrated in Figures 1 and 2, when colonizing crop plants. Among these attributes G. diazotrophicus has the ability to cope with high sucrose concentrations, low oxygen and pH levels and the ability to intracellularly colonize and fix nitrogen in a wide range of crop plants [12,23,24].…”

Section: G Diazotrophicus: An "Extra-ordinary Endophyte"mentioning

confidence: 99%

Non-nodular Endophytic Bacterial Symbiosis and the Nitrogen Fixation of Gluconacetobacter diazotrophicus

Dent¹

2018

Symbiosis

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There is a need to reduce the negative polluting influence of mineral nitrogen fertilizers and to develop a more sustainable climate smart agriculture capable of meeting our future food security needs. Biological nitrogen fixation can have a role in this if it can be applied to the major food crop plants. Certain strains of the obligate nitrogen-fixing bacterial endophyte Gluconacetobacter diazotrophicus have the necessary attributes for this role. An 'extra-ordinary endophyte' this bacterium is one of relatively few that has mechanisms to cope with high levels of sucrose, an acidic pH, a wide range of oxygen environments, nitrogen fixation, as well as having respiratory chain attributes that make it a possible candidate eukaryote proto-mitochondria. Having a small genome relative to other endophytes, it is typical of facultative intracellular colonizers, with a life cycle that involves horizontal transfer to other high sucrose species via insects and potential vertical transfer through seeds. Every method used for demonstrating nitrogen fixation in rhizobia have been used to demonstrate nitrogen fixation in G. diazotrophicus both in vitro and in planta, and field trials demonstrate yield increases and the potential to reduce nitrogen fertilizer use, meeting both food security and climate smart agriculture needs.

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Section: G Diazotrophicus: An "Extra-ordinary Endophyte"mentioning

confidence: 99%

Non-nodular Endophytic Bacterial Symbiosis and the Nitrogen Fixation of Gluconacetobacter diazotrophicus

Dent¹

2018

Symbiosis

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“…The downside of using chemical fertilizers is they are expensive and have negative impact on environment. Using PGPR and providing needed nitrogen by the "NF can be an alternative way to increase agricultural yield [16,17].…”

Section: Biological Nitrogen Ixationmentioning

confidence: 99%

Making Soil More Accessible to Plants: The Case of Plant Growth Promoting Rhizobacteria

Turan¹,

Kıtır²,

Alkaya³

et al. 2016

Plant Growth

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“…This process converts the atmospheric nitrogen into ammonia. Nitrogen-fixing bacteria have an enzyme, called nitrogenase, which catalyzes the breakdown of the triple covalent bond of the nitrogen molecule at ambient temperature and pressure (Eskin et al, 2014). Phosphorus is the second inorganic nutrient necessary for all life forms.…”

Section: Introductionmentioning

confidence: 99%

“…Likewise, it has been recovered from other crops like coffee (Jiménez et al, 1997), pineapple (Tapia et al, 2000), carrot (Madhaiyan et al, 2004), and rice (Muthukumarasamy et al, 2005). G. diazotrophicus is a subject of great interest among nitrogen-fixing bacteria, as it fixes nitrogen under aerobic growth conditions (Eskin et al, 2014). This property allows it to perform the process in nonleguminous plants.…”

Section: Introductionmentioning

confidence: 99%

“…This solubilization ability allows G. diazotrophicus to access insoluble nutrients and make them available for absorption by plants. 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%

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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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Research Progress and Perspectives of Nitrogen Fixing Bacterium,Gluconacetobacter diazotrophicus, in Monocot Plants

Cited by 61 publications

References 106 publications

Non-nodular Endophytic Bacterial Symbiosis and the Nitrogen Fixation of Gluconacetobacter diazotrophicus

Non-nodular Endophytic Bacterial Symbiosis and the Nitrogen Fixation of Gluconacetobacter diazotrophicus

Making Soil More Accessible to Plants: The Case of Plant Growth Promoting Rhizobacteria

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

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