Untitled

Elbadry, M.; Elbanna, Khaled

doi:10.1023/a:1008923600036

Cited by 14 publications

(8 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Elbadry and Elbanna found that inoculating rice with R. capsulatus DSM155 in the presence of N fertilizer could increase the nitrogen content in roots by 20%. However, the effect of inoculation was lower in the presence of N fertilizer than in N-deficient conditions [61]. In addition, inoculation with DSM155 caused a 2.5-fold increase in N contents in roots under N-deficient conditions [61].…”

Section: Pnsb Improve Nitrogen Use Efficiency By Interaction With Plantsmentioning

confidence: 90%

“…However, the effect of inoculation was lower in the presence of N fertilizer than in N-deficient conditions [61]. In addition, inoculation with DSM155 caused a 2.5-fold increase in N contents in roots under N-deficient conditions [61]. Thus, these results suggested that R. capsulatus DSM155 could not only supply the host plants with fixed nitrogen in the absence of N fertilizer but also improve the NUE in the presence of N fertilizer [61].…”

Section: Pnsb Improve Nitrogen Use Efficiency By Interaction With Plantsmentioning

confidence: 91%

“…In an early study, treating PNSB inoculants at the reproductive stage with N fertilizer in the form of ammonia chloride was shown to increase the grain yield of rice by 32% [60]. R. capsulatus DSM155 was initially isolated from a sewage processing plant [61]. When rice was inoculated with this bacterium through a hydroponic system, there was a 9-53% improvement in the aerial biomass compared to that of rice in a control treatment without inoculation [61].…”

Section: Plant Growth Promoting (Pgp) Traits Exerted By Pnsb On Cropsmentioning

confidence: 99%

“…R. capsulatus DSM155 was initially isolated from a sewage processing plant [61]. When rice was inoculated with this bacterium through a hydroponic system, there was a 9-53% improvement in the aerial biomass compared to that of rice in a control treatment without inoculation [61]. Harada and colleagues reported that the R. palustris strain KN122 isolated from paddy soil was able to utilize rice straw as a nutrient for growth [62].…”

Section: Plant Growth Promoting (Pgp) Traits Exerted By Pnsb On Cropsmentioning

confidence: 99%

See 3 more Smart Citations

From Lab to Farm: Elucidating the Beneficial Roles of Photosynthetic Bacteria in Sustainable Agriculture

2021

View full text Add to dashboard Cite

Photosynthetic bacteria (PSB) possess versatile metabolic abilities and are widely applied in environmental bioremediation, bioenergy production and agriculture. In this review, we summarize examples of purple non-sulfur bacteria (PNSB) through biofertilization, biostimulation and biocontrol mechanisms to promote plant growth. They include improvement of nutrient acquisition, production of phytohormones, induction of immune system responses, interaction with resident microbial community. It has also been reported that PNSB can produce an endogenous 5-aminolevulinic acid (5-ALA) to alleviate abiotic stress in plants. Under biotic stress, these bacteria can trigger induced systemic resistance (ISR) of plants against pathogens. The nutrient elements in soil are significantly increased by PNSB inoculation, thus improving fertility. We share experiences of researching and developing an elite PNSB inoculant (Rhodopseudomonas palustris PS3), including strategies for screening and verifying beneficial bacteria as well as the establishment of optimal fermentation and formulation processes for commercialization. The effectiveness of PS3 inoculants for various crops under field conditions, including conventional and organic farming, is presented. We also discuss the underlying plant growth-promoting mechanisms of this bacterium from both microbial and plant viewpoints. This review improves our understanding of the application of PNSB in sustainable crop production and could inspire the development of diverse inoculants to overcome the changes in agricultural environments created by climate change.

show abstract

Section: Pnsb Improve Nitrogen Use Efficiency By Interaction With Plantsmentioning

confidence: 90%

Section: Pnsb Improve Nitrogen Use Efficiency By Interaction With Plantsmentioning

confidence: 91%

Section: Plant Growth Promoting (Pgp) Traits Exerted By Pnsb On Cropsmentioning

confidence: 99%

Section: Plant Growth Promoting (Pgp) Traits Exerted By Pnsb On Cropsmentioning

confidence: 99%

See 2 more Smart Citations

From Lab to Farm: Elucidating the Beneficial Roles of Photosynthetic Bacteria in Sustainable Agriculture

2021

View full text Add to dashboard Cite

show abstract

“…Inoculation of rice cultures with PNSB cells in hydroponic, pot, and lysimeter experiments has been performed in order to examine effects of the inoculation on rice cultural parameters and nitrogen fixation by PNSB. Cells of R. capsulatus were inoculated to hydroponic cultures of four varieties of rice seedling with or without ammonium nitrate as a nitrogen source [115]. It becomes evident that the nitrogen gains and vegetative growth enhancement during the 3-week cultivation are primarily due to nitrogen fixation and that the inoculation gives benefits to rice seedling growth almost commensurate with the addition of ammonium nitrate.…”

Section: Inoculation Of Rice Cultures With Pnsb Cellsmentioning

confidence: 99%

Potential of Phototrophic Purple Nonsulfur Bacteria to Fix Nitrogen in Rice Fields

Maeda

2021

Microorganisms

View full text Add to dashboard Cite

Biological nitrogen fixation catalyzed by Mo-nitrogenase of symbiotic diazotrophs has attracted interest because its potential to supply plant-available nitrogen offers an alternative way of using chemical fertilizers for sustainable agriculture. Phototrophic purple nonsulfur bacteria (PNSB) diazotrophically grow under light anaerobic conditions and can be isolated from photic and microaerobic zones of rice fields. Therefore, PNSB as asymbiotic diazotrophs contribute to nitrogen fixation in rice fields. An attempt to measure nitrogen in the oxidized surface layer of paddy soil estimates that approximately 6–8 kg N/ha/year might be accumulated by phototrophic microorganisms. Species of PNSB possess one of or both alternative nitrogenases, V-nitrogenase and Fe-nitrogenase, which are found in asymbiotic diazotrophs, in addition to Mo-nitrogenase. The regulatory networks control nitrogenase activity in response to ammonium, molecular oxygen, and light irradiation. Laboratory and field studies have revealed effectiveness of PNSB inoculation to rice cultures on increases of nitrogen gain, plant growth, and/or grain yield. In this review, properties of the nitrogenase isozymes and regulation of nitrogenase activities in PNSB are described, and research challenges and potential of PNSB inoculation to rice cultures are discussed from a viewpoint of their applications as nitrogen biofertilizer.

show abstract

Production of indole-3-acetic acid and related indole derivatives from L-tryptophan by Rubrivivax benzoatilyticus JA2

Mujahid

Sasikala²,

Ramana

2010

Appl Microbiol Biotechnol

View full text Add to dashboard Cite

Rubrivivax benzoatilyticus JA2 produces indoles with simultaneous utilization of L-tryptophan. Fifteen chromatographically distinct indole derivatives were detected from the L-tryptophan-supplemented cultures of R. benzoatilyticus JA2. Nine of these were identified as, indole 3-acetamide, Methoxyindole-3-aldehyde, indole 3-aldehyde, methoxyindole-3-acetic acid, indole 3-acetic acid, indole-3-carboxylic acid, indole-3-acetonitrile, indole, and trisindoline. Tryptophan stable isotope feeding confirmed the indoles produced are from the supplemented L-tryptophan. Indole 3-acetic acid is one of the major products of L-tryptophan catabolism by R. benzoatilyticus JA2 and its production was influenced by growth conditions. Identification of indole 3-acetamide and tryptophan monooxygenase activity suggests indole 3-acetamide routed IAA biosynthesis in R. benzoatilyticus JA2. The study also indicated the possible multiple pathways of IAA biosynthesis in R. benzoatilyticus JA2.

show abstract

Untitled

Cited by 14 publications

References 12 publications

From Lab to Farm: Elucidating the Beneficial Roles of Photosynthetic Bacteria in Sustainable Agriculture

From Lab to Farm: Elucidating the Beneficial Roles of Photosynthetic Bacteria in Sustainable Agriculture

Potential of Phototrophic Purple Nonsulfur Bacteria to Fix Nitrogen in Rice Fields

Production of indole-3-acetic acid and related indole derivatives from L-tryptophan by Rubrivivax benzoatilyticus JA2

Contact Info

Product

Resources

About