Physiological changes and growth promotion induced in poplar seedlings by the plant growth-promoting rhizobacteria Bacillus subtilis JS

Jang, Jihwi; Kim, S. H.; Khaine, Inkyin; Kwak, Myeong Ja; Lee, H. K.; Lee, T. Y.; Lee, W. Y.

doi:10.1007/s11099-018-0801-0

Cited by 30 publications

(23 citation statements)

References 64 publications

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“…Also, the inoculation with A. brasilense provided an increase of increase of 10.% for biomass P uptake (40.37 to 44.42 kg ha −1 ) and 21.3% for grain P uptake (49.87 to 60.50 kg ha −1 , respectively) compared to control, regardless of P 2 O 5 application rates. The exact mechanisms underlying the B. subtilis and A. brasilense effect on corn growth was not evaluated in the present study, however, it is very likely that the improvement in P availability and uptake reflecting on improved PUE and grain yield by corn verified in this study is associated with the well-known ability of A. brasilense and B. subtilis to promote plant growth (Fukami et al, 2017;Jang et al, 2018;Martins et al, 2018;Posada et al, 2018;Salvo et al, 2018). The increase on PUE and corn yield as a function B. subtilis and A. brasilense inoculation compared to control was, on average, equivalent to 100.5 and 54.6% for PUE and 17.4 and 12.8% for grain yield, respectively, regardless of P 2 O 5 application rates.…”

Section: Discussionmentioning

confidence: 89%

Corn Yield and Phosphorus Use Efficiency Response to Phosphorus Rates Associated With Plant Growth Promoting Bacteria

Pereira

Galindo

Gazola

et al. 2020

Front. Environ. Sci.

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The use of plant growth promoting bacteria (PGPB) that can solubilize phosphorus (P) has shown potential to improve nutrient availability in grass crops such as corn (Zea mays L.) This study was developed to investigate if inoculation with Azospirillum brasilense, Bacillus subtilis or Pseudomonas fluorescens associated with P 2 O 5 rates can improve phosphorus use efficiency (PUE) reflecting on greater corn development and yield. The field trial was set up in a Rhodic Hapludox under no-till system under Savannah conditions, in a completely randomized block design with four replicates. Treatments were tested in a full factorial design and included: (i) five P 2 O 5 rates (0 to 105 kg ha −1) and (ii) four PGPB seed inoculation (Control-without inoculation, A. brasilense, B. subtilis or P. fluorescens). Inoculation was found to increase grain yield by 39.5, 29.1, and 15.9% when B. subtilis was inoculated in the absence of P 2 O 5 rates and associated with 17.5 and 70 kg P 2 O 5 ha −1 and by 34.7% when A. brasilense was inoculated with application of 105 kg P 2 O 5 ha −1. In addition, inoculation with B. subtilis and A. brasilense were found to increase P uptake, benefiting productive components development, leading to an improved PUE, and greater corn grain yield. The results of this study showed positive improvements in P uptake as a result of B. subtilis and A. brasilense inoculation, with an increase of 100.5 and 54.6% on PUE, respectively; while the P. fluorescens inoculation were less evident. Further research should be conducted under biotic or/and abiotic conditions such as attack of pathogens and insects, drought, salinity, water flooding, low and high temperature to better understand the role of PGPB, inoculated alone or in combination as the co-inoculated method.

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Section: Discussionmentioning

confidence: 89%

Corn Yield and Phosphorus Use Efficiency Response to Phosphorus Rates Associated With Plant Growth Promoting Bacteria

Pereira

Galindo

Gazola

et al. 2020

Front. Environ. Sci.

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“…1), in good agreement with the findings of Grzesik et al 44 . The increase in cotton biomass is because biochar and biofertilizer contain a large number of nutritive elements which can provide a favorable growth environment for plants 45,46 . In this study, the cotton root was the main site of enrichment site for Cd uptake and the cotton stem and boll had the lowest accumulation of Cd, in line with the results of Chen et al 47 .…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of biochar and biofertilizer on cadmium-contaminated cotton growth and the antioxidative defense system

Zhu

Wang

et al. 2020

Sci Rep

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Consistent use of large amounts of fertilizers, pesticides, and mulch can cause the accumulation of harmful substances in cotton plants. Among these harmful substances, cadmium (Cd), an undegradable element, stands out as being particularly highly toxic to plants. The objective of this study was to evaluate the ability of biochar (3%) and biofertilizer (1.5%) to decrease Cd uptake, increase cotton dry weight, and modulate the activities of photosynthetic and peroxidase (POD), superoxide dismutase (SOD), catalase enzyme (CAT) in cotton (Gossypium hirsutum L.) grown in Cd-contaminated soil (0, 1, 2, or 4 mg Cd kg−1 soil) in pots. These studies showed that, as expected, exogenous Cd adversely affects cotton chlorophyll and photosynthesis. However, biochar and biofertilizer increased cotton dry weight by an average of 16.82% and 32.62%, respectively. Meanwhile, biochar and biofertilizer decreased the accumulation of Cd in cotton organs, and there was a significant reduction in the amount of Cd in bolls (P < 0.05). Biochar and biofertilizer have a positive impact on cotton chlorophyll content, net photosynthesis, stomatal conductance, transpiration rate, and intercellular CO2 concentration. Thus, the addition of biochar and biofertilizer promote cotton growth. However, biochar and biofertilizer increased the SOD activity of leaves (47.70% and 77.21%), CAT activity of leaves (35.40% and 72.82%), SOD activity of roots (33.62% and 39.37%), and CAT activity of roots (36.91% and 60.29%), respectively, and the addition of biochar and biofertilizer decreased the content of MDA and electrolyte leakage rate. Redundancy analyses showed that biochar and biofertilizer also improved SOD and POD activities by reducing the heavy metal-induced oxidative stress in cotton and reducing Cd uptake in cotton organs. Therefore, biochar and biofertilizer have a positive effect on the growth of cotton.

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“…Carotenoids, as well as chlorophylls, are photosynthesis pigments; however, their functionality in plants is somewhat different [61]. While they both participate in photosynthesis, increases in chlorophyll content are usually linked with the enhancement of plant viability [57,62] (even linking it to bacterial nitrogen fixation or siderophore production in bacteria-plant interaction studies [63,64]), while carotenoids are linked with plant stress, antioxidative activity and phytohormone production [65][66][67][68][69].…”

Section: Discussionmentioning

confidence: 99%

Impact of Plant-Associated Bacteria on the In Vitro Growth and Pathogenic Resistance against Phellinus tremulae of Different Aspen (Populus) Genotypes

et al. 2021

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Aspens (Populus tremula and its hybrids), economically and ecologically important fast-growing trees, are often damaged by Phellinus tremulae, a rot-causing fungus. Plant-associated bacteria can be used to increase plant growth and resistance; however, no systematic studies relating the activity of symbiotic bacteria to aspen resistance against Phellinus tremulae have been conducted so far. The present pioneer study investigated the responses of two Populus tremula and two P. tremula × P. tremuloides genotypes to in vitro inoculations with, first, either Pseudomonas sp. or Paenibacillus sp. bacteria (isolated originally from hybrid aspen tissue cultures and being most closely related to Pseudomonas oryzihabitans and Paenibacillus tundrae, respectively) and, in the subsequent stage, with Phellinus tremulae. Both morphological parameters of in vitro-grown plants and biochemical content of their leaves, including photosynthesis pigments and secondary metabolites, were analyzed. It was found that both Populus tremula × P. tremuloides genotypes, whose development in vitro was significantly damaged by Phellinus tremulae, were characterized by certain responses to the studied bacteria: decreased shoot development by both Paenibacillus sp. and Pseudomonas sp. and increased phenol content by Pseudomonas sp. In turn, these responses were lacking in both Populus tremula genotypes that showed in vitro resistance to the fungus. Moreover, these genotypes showed positive long-term growth responses to bacterial inoculation, even synergistic with the subsequent fungal inoculation. Hence, the studied bacteria were demonstrated as a potential tool for the improved in vitro propagation of fungus-resistant aspen genotypes.

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Physiological changes and growth promotion induced in poplar seedlings by the plant growth-promoting rhizobacteria Bacillus subtilis JS

Cited by 30 publications

References 64 publications

Corn Yield and Phosphorus Use Efficiency Response to Phosphorus Rates Associated With Plant Growth Promoting Bacteria

Corn Yield and Phosphorus Use Efficiency Response to Phosphorus Rates Associated With Plant Growth Promoting Bacteria

Effects of biochar and biofertilizer on cadmium-contaminated cotton growth and the antioxidative defense system

Impact of Plant-Associated Bacteria on the In Vitro Growth and Pathogenic Resistance against Phellinus tremulae of Different Aspen (Populus) Genotypes

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