Growth and 137Cs uptake of four Brassica species influenced by inoculation with a plant growth-promoting rhizobacterium Bacillus pumilus in three contaminated farmlands in Fukushima prefecture, Japan

Aung, Han Phyo; Djedidi, Salem; Oo, Aung Zaw; Aye, Yi Swe; Yokoyama, Tadashi; Suzuki, Shunya; Sekimoto, Hitoshi; Bellingrath-Kimura, Sonoko Dorothea

doi:10.1016/j.scitotenv.2015.03.109

Cited by 34 publications

(14 citation statements)

References 40 publications

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“…Inoculation of plants using bacterial strains with plant growth promoting properties has been reported: (a) to improve the performance of plants under contaminant stress conditions in phytoremediation experiments (Aung et al, 2015;Becerra-Castro et al, 2013a;Das et al, 2014;Ma et al, 2015;Tara et al, 2014); (b) as biological fertilizers (de Oliveira et al, 2006;Rueda-Puente et al, 2010); (c) to alleviate environmental stresses (such as nutrient deficiency, salinity, water stress, ambient temperature) (Ali et al, 2014;Egamberdiyeva and Höflich, 2003;Grichko and Glick, 2001;Mayak et al, 2004;Pii et al, 2015); and (d) as biocontrol agents of plant diseases (Compant et al, 2005;Zhang et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Use of plant growth promoting bacterial strains to improve Cytisus striatus and Lupinus luteus development for potential application in phytoremediation

Balseiro-Romero

Gkorezis

Kidd

et al. 2017

Science of The Total Environment

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Plant growth promoting (PGP) bacterial strains possess different mechanisms to improve plant development under common environmental stresses, and are therefore often used as inoculants in soil phytoremediation processes. The aims of the present work were to study the effects of a collection of plant growth promoting bacterial strains on plant development, antioxidant enzyme activities and nutritional status of Cytisus striatus and/or Lupinus luteus plants a) growing in perlite under non-stress conditions and b) growing in diesel-contaminated soil. For this, two greenhouse experiments were designed. Firstly, C. striatus and L. luteus plants were grown from seeds in perlite, and periodically inoculated with 6 PGP strains, either individually or in pairs. Secondly, L. luteus seedlings were grown in soil samples of the A and B horizons of a Cambisol contaminated with 1.25% (w/w) of diesel and inoculated with best PGP inoculant selected from the first experiment. The results indicated that the PGP strains tested in perlite significantly improved plant growth. Combination treatments provoked better growth of L. luteus than the respective individual strains, while individual inoculation treatments were more effective for C. striatus. L. luteus growth in diesel-contaminated soil was significantly improved in the presence of PGP strains, presenting a 2-fold or higher increase in plant biomass. Inoculants did not provoke significant changes in plant nutritional status, with the exception of a subset of siderophore-producing and P-solubilising bacterial strains that resulted in significantly modification of Fe or P concentrations in leaf tissues. Inoculants did not cause significant changes in enzyme activities in perlite experiments, however they significantly reduced oxidative stress in contaminated soils suggesting an improvement in plant tolerance to diesel. Some strains were applied to non-host plants, indicating a non-specific performance of their plant growth promotion. The use of PGP strains in phytoremediation may help plants to overcome contaminant and other soil stresses, increasing phytoremediation efficiency.

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Section: Discussionmentioning

confidence: 99%

Use of plant growth promoting bacterial strains to improve Cytisus striatus and Lupinus luteus development for potential application in phytoremediation

Balseiro-Romero

Gkorezis

Kidd

et al. 2017

Science of The Total Environment

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“…It is likely that the growth-promoting effects of various PGPR are due to bacterial production of plant growth regulators, such as auxins, gibberellins, and cytokinins [7,8]. Bacillus pumilus strain TUAT-1 (hereafter referred to as TUAT-1) has been shown to increase shoot and root growth in rice, mustard, radish, and komatsuna [9,10], mainly due to its effects to promote nutrient uptake by plant roots. Inoculation of plants with TUAT-1 biofertilizer at sowing and transplanting resulted in significant changes in plant biomass, nutrient uptake, tissue N content, tiller number, root length, and number of roots in the forage rice "leaf star" [10].…”

Section: Introductionmentioning

confidence: 99%

Bacillus Pumilus Strain TUAT-1 and Nitrogen Application in Nursery Phase Promote Growth of Rice Plants under Field Conditions

Win

Ohkama‐Ohtsu

et al. 2018

Agronomy

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The aims of this study were to boost growth attributes, yield, and nutrient uptake of rice in paddy fields using a combination of Bacillus pumilus strain TUAT-1 biofertilizer and different nitrogen (N) application rates in nursery boxes. Bacillus pumilus strain TUAT-1 was applied as an inoculant biofertilizer in conjunction with different rates of N fertilizer to rice seedlings in a nursery. Plant growth and yield parameters were evaluated at two stages: in 21-day-old nursery seedlings and in mature rice plants growing in a paddy field. Inoculation with TUAT-1 significantly increased the seedling growth and root morphology of 21-day-old nursery seedlings. There was a marked increase in chlorophyll content, plant height, number of tillers, and tiller biomass of rice plants with the use of TUAT-1 and N fertilizers alone, and their combinations, at the maximum tillering stage in the field. The combination of TUAT-1 and 100% N (farmer recommended rate of N) resulted in the greatest tiller number and biomass at the maximum tillering stage, and positively affected other growth attributes and yield. The growth and yield were similar in the TUAT-1 + 50% N and 100% N (uninoculated) treatments, because TUAT-1 promoted root development, which increased nutrient uptake from the soil. These results suggest that the B. pumilus strain TUAT-1 has a potential to enhance the nutritional uptake of rice by promoting the growth and development of roots.

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“…These results differ from those found by Ndeddy Aka and Babalola (2016) and Turan et al (2014), which verified higher root length and dry matter of Brassica juncea plants inoculated with Bacillus subtilis. On the other hand, Aung et al (2015), in work with Brassica rapa and Brassica juncea, did not find increases in biomass production in plants inoculated with Bacillus pumilus. Thus, it is evident that the associations between Brassica plants and Bacillus bacteria may also imply neutrality or even antagonistic effects.…”

Section: Resultsmentioning

confidence: 76%

Bactérias promotoras de crescimento alteram o desenvolvimento da parte aérea e sistema radicular da canola

Gomes

Radi

Aquino

2018

SCA

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Plant growth promoting rhizobacteria (PGPR) are soil bacteria that have the ability to colonize the rhizosphere and favor the growth of plants through several mechanisms, such as phytohormone production, biological fixation in nitrogen (BNF), increased efficiency in uptake of nutrients in the soil, and greater tolerance to water stress or disease attack. The objective of this work was to evaluate the effects of inoculation of different growth promoting bacteria on the development of canola plants. The experiment was conducted in a greenhouse with a completely randomized design. Four treatments were evaluated: control - without inoculation, Azospirillum brasilense of strain Ab-V5, Rhizobium sp. strain 8121, and Bacillus sp. strain CM. The height parameter of plants was evaluated weekly, starting at 25 days after sowing (DAS). At the end of the evaluations, at 53 DAS, the length of the main root, the dry mass of the aerial part and the root system were measured. The canola showed a linear increase in height from 25 to 53 DAS. Bacillus sp. negatively influenced the growth of the plants, reducing their height in periods 25, 32 and 39 DAS in relation to the control group. A. brazilense. yielded 2.64 times more dry root mass (0.7 g plant-1) than the control plants (0.3 g plant-1). Even though Rhizobium sp. produced an increase in the length of the main root, this was not reflected in an increment of dry mass in the root system. The greatest development of the root system was provided by A. brazilense.

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Growth and 137Cs uptake of four Brassica species influenced by inoculation with a plant growth-promoting rhizobacterium Bacillus pumilus in three contaminated farmlands in Fukushima prefecture, Japan

Cited by 34 publications

References 40 publications

Use of plant growth promoting bacterial strains to improve Cytisus striatus and Lupinus luteus development for potential application in phytoremediation

Use of plant growth promoting bacterial strains to improve Cytisus striatus and Lupinus luteus development for potential application in phytoremediation

Bacillus Pumilus Strain TUAT-1 and Nitrogen Application in Nursery Phase Promote Growth of Rice Plants under Field Conditions

Bactérias promotoras de crescimento alteram o desenvolvimento da parte aérea e sistema radicular da canola

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