Effects of Arbuscular Mycorrhizal Fungi Communities on Soil Quality and the Growth of Cucumber Seedlings in a Greenhouse Soil of Continuously Planting Cucumber

Li, Yan; Chen, Yinglong; Li, Min; Lin, Xiangui; Runjin, Liu

doi:10.1016/s1002-0160(11)60193-8

Cited by 30 publications

(16 citation statements)

References 23 publications

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“…That means the soil inoculation method, sometimes, is more effective in enhancing soil quality than the seed inoculation method. Besides, some studies have shown that through soil drenching rather than seed treatment, positive effects of PGPR on soil quality were observed (Adesemoye et al, 2009;Li et al, 2012). WP8 with its character of regulation of the soil bacterial community indicates that this type of PGPR may serve as an efficient and economical soil conditioner.…”

Section: Discussionmentioning

confidence: 99%

A possible mechanism of action of plant growth-promoting rhizobacteria (PGPR) strain Bacillus pumilus WP8 via regulation of soil bacterial community structure

Kang

Shen

Wang

et al. 2013

J. Gen. Appl. Microbiol.

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According to the traditional view, establishment and maintenance of critical population densities in the rhizosphere was the premise of PGPR to exert growth-promoting effects. In light of the facts that soil bacterial community structures can be changed by some PGPR strains including Bacillus pumilus WP8, we hypothesize that regulation of soil bacterial community structure is one of the plant growth-promoting mechanisms of B. pumilus WP8, rather than depending on high-density cells in soil. In this study, denaturing gradient gel electrophoresis (PCR-DGGE) was performed to evaluate the relationship between changes in soil bacterial community structure and growth-promoting effect on the seedling growth of fava beans (Vicia faba L.) during three successive cultivations. We found that B. pumilus WP8 lacks capacity to reproduce in large enough numbers to survive in bulk soil more than 40 days, yet the bacterial community structures were gradually influenced by inoculation of WP8, especially on dominant populations. Despite WP8 being short-lived, it confers the ability of steadily promoting fava bean seedling growth on soil during the whole growing period for at least 90 days. Pseudomonas chlororaphis RA6, another tested PGPR strain, exists in large numbers for at least 60 days but less than 90 days, whilst giving rise to slight influence on bacterial community structure. In addition, along with the extinction of RA6 cells in bulk soils, the effect of growth promotion disappeared simultaneously. Furthermore, the increment of soil catalase activity from WP8 treatment implied the ability to stimulate soil microbial activity, which may be the reason why the dominant population changed and increased as time passed. Our study suggests that regulation of treated soil bacterial community structure may be another possible action mechanism.

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Section: Discussionmentioning

confidence: 99%

A possible mechanism of action of plant growth-promoting rhizobacteria (PGPR) strain Bacillus pumilus WP8 via regulation of soil bacterial community structure

Kang

Shen

Wang

et al. 2013

J. Gen. Appl. Microbiol.

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“…Several species of mycorrhizal fungi increased plant biomass in maize (Othira et al, 2012). Li et al, (2012) demonstrated that AMF communities increased plant height, shoot dry weight, root dry weight, and leaf area in cucumber. Mathew et al, (2003) achieved significant increase in height of banana cultivars during all growth stages, reaching a final height of 16.76 cm which was 60.7% higher than uninoculated control.…”

Section: Introductionmentioning

confidence: 98%

Evaluation of Arbuscular Mycorrhizal Fungi of Orchard Soils for Growth Improvement in Maize under Protected Conditions

Summuna¹,

Mushtaq²

2017

Int.J.Curr.Microbiol.App.Sci

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“…T he soil health is governed by the physico-chemical factors and the microorganisms present in the soil. The important soil processes such as organic matter decomposition, nutrient cycling and soil degradation are maintained by soil microorganisms [1,2] . The change in the soil microbial community is the most reliable indicator of the soil health of any agroecosystem [3] .…”

Section: Introductionmentioning

confidence: 99%

Vermicompost and cow dung admixture increases rhizosphere bacterial population and promotes rapid physiological maturity in Maize (Zea mays L.)

Chatterjeea

Mandala

Mandal

et al. 2020

NJAS

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Incessant application of chemical fertilizers to the agricultural fields may alter the composition and activities of soil microbiota. Thus, the shift of cultivation practices from chemical to organic is considered to be the need of the hour in order to maintain soil health. A study was conducted in the agricultural fields of the University of Burdwan, India to observe the impact of organic manure on rhizosphere bacterial community. The experiments were conducted on maize plants, supplemented with the recommended dose of chemical fertilizer and organic manure (vermicompost and cow dung mixture). Corresponding changes in the plant phenological events and soil health in terms of soil physico-chemical factors and rhizosphere bacterial groups up to the level of CFU g-1× 105 dry soil were noted.The results showed a significant increase in population of nitrifying bacteria, asymbiotic nitrogen-fixing bacteria and protein hydrolysing bacteria in the organically treated plots. Moreover, the organic manure increases the bacterial population of rhizosphere, which in turn has a positive impact on maize growth and yield. The growth of the three groups of bacteria was attributed to the type of organic manure supplied to the agricultural fields.In addition, strong correlation was observed between Zn and protein hydrolysing bacteria. The soil organic carbon and available nitrogen were strongly correlated with nitrifying, fat solubilizing and phosphate solubilizing groups of bacteria.

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Effects of Arbuscular Mycorrhizal Fungi Communities on Soil Quality and the Growth of Cucumber Seedlings in a Greenhouse Soil of Continuously Planting Cucumber

Cited by 30 publications

References 23 publications

A possible mechanism of action of plant growth-promoting rhizobacteria (PGPR) strain Bacillus pumilus WP8 via regulation of soil bacterial community structure

A possible mechanism of action of plant growth-promoting rhizobacteria (PGPR) strain Bacillus pumilus WP8 via regulation of soil bacterial community structure

Evaluation of Arbuscular Mycorrhizal Fungi of Orchard Soils for Growth Improvement in Maize under Protected Conditions

Vermicompost and cow dung admixture increases rhizosphere bacterial population and promotes rapid physiological maturity in Maize (Zea mays L.)

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