In-vessel composting of HMX and RDX contaminated sludge using microbes isolated from contaminated site

Meda, Arjun; Sangwan, Pritam; Kiran, Boggavarapu

doi:10.1016/j.envpol.2021.117394

Cited by 6 publications

(2 citation statements)

References 32 publications

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“…Some strains that can fix nitrogen also have other functions. For example, Agrobacterium is an important vector in genetic engineering, Paenarthrobacter [ 40 ] and Arthrobacter [ 41 ] are used for treating industrial wastewater and soil pollution, and for promoting plant growth, Bacillus is an important industrial microorganism used in cellulose degradation [ 42 ], while Pseudomonas is one of the most studied bacteria for use in biocontrol applications [ 43 ]. The results further indicated that regional differences influenced microbial species and that strains isolated from the same host in different regions may have relatively distant genetic relationships.…”

Section: Discussionmentioning

confidence: 99%

Screening of high-efficiency nitrogen-fixing bacteria from the traditional Chinese medicine plant Astragalus mongolicus and its effect on plant growth promotion and bacterial communities in the rhizosphere

Shi,

Guo,

Lei

et al. 2023

BMC Microbiol

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Background Astragalus mongolicus Bunge is used in traditional Chinese medicine and is thus cultivated in bulk. The cultivation of A. mongolicus requires a large amount of nitrogen fertilizer, increasing the planting cost of medicinal materials and polluting the environment. Isolation and screening of plant growth-promoting rhizobacteria (PGPR) and exploring the nitrogen fixation potential of A. mongolicus rhizosphere microorganisms would effectively reduce the production cost of A. mongolicus. Results This study used A. mongolicus roots and rhizosphere soil samples from Longxi County of Gansu Province, Jingle County, and Hunyuan County of Shanxi Province, China, to isolate and identify nitrogen-fixing bacteria. Through nitrogen fixation efficiency test, single strain inoculation test, and plant growth-promoting characteristics, three strains, Bacillus sp. J1, Arthrobacter sp. J2, and Bacillus sp. G4 were selected from 86 strains of potential nitrogen-fixing bacteria, which were the most effective in promoting the A. mongolicus growth and increasing the nitrogen, phosphorus, and potassium content in plants. The antagonistic test showed that these bacteria could grow smoothly under the co-culture conditions. The J1, J2, and G4 strains were used in a mixed inoculum and found to enhance the biomass of A. mongolicus plants and the accumulation of the main medicinal components in the field experiment. Mixed bacterial agent inoculation also increased bacterial diversity and changed the structure of the bacterial community in rhizosphere soil. Meanwhile, the relative abundance of Proteobacteria increased significantly after inoculation, suggesting that Proteobacteria play an important role in plant growth promotion. Conclusions These findings indicate that specific and efficient PGPRs have a significant promoting effect on the growth of A. mongolicus, while also having a positive impact on the structure of the host rhizosphere bacteria community. This study provides a basis for developing a nitrogen-fixing bacterial fertilizer and improving the ecological planting efficiency of A. mongolicus.

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Section: Discussionmentioning

confidence: 99%

Screening of high-efficiency nitrogen-fixing bacteria from the traditional Chinese medicine plant Astragalus mongolicus and its effect on plant growth promotion and bacterial communities in the rhizosphere

Shi,

Guo,

Lei

et al. 2023

BMC Microbiol

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“…This implies that the use of microbes for composting (biodegradation) should be nonphytopathogenic. In biodegradation processes of organic wastes, the microbes used have greater degradation ability if they originated from a similar environment (Meda et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Exploration of Potential Indigenous Non-phytopathogenic Fungi for Bio-organic Fertilizer Recycling from Organic Waste

Molla¹,

Zahan²,

Oliver³

et al. 2022

Environ. Nat. Resour. J.

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Using potential microbes in biodegradable solid waste management is an emerging science. Microbes play a significant role in recycling of organic solid wastes. Therefore, the present project was carried out to isolate indigenous potential non-phytopathogenic fungi from local relevant decomposed substrates for the purpose of organic waste recycling as bio-organic fertilizer (BOF). A total of thirteen fungal strains were isolated. Seven of them were identified as Trichoderma spp., and the rest were Penicillium spp. Germination of mung bean (Vigna radiata), mustard (Brassica campestris), and wheat (Triticum aestivum) seeds were assessed by application of 13 fungal isolate suspensions. Significant increase of germination percent was achieved in mung bean (98.35%), mustard (96.65%), and wheat (93.35%) by fungal treatments RW-T02, PL-P01, and CD-T01/MSW-T05, respectively, compared to the controls. But radicle and plumule lengths were not promoted by fungal treatments in the majority of cases. Significantly, the longest radicle and plumule lengths of mung bean and mustard were found in control treatments. Conversely, in wheat the longest radicle and plumule length were achieved in treatments MSW-T05 and RW-T03, respectively. Based on superior performances of percent germination and radicle/plumule length, six fungal isolates were selected for compatibility performance in mixed cultures. In the compatibility tests, two fungal combinations (ABF and BCE) presented superior mutual intermingle appearances. Perhaps these combinations may play significant roles in biodegradation of organic wastes.

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Introduction to Harnessing Microbial Potential for Multifarious Applications

Bala,

Ghosh,

Kumar

et al. 2024

Energy, Environment, and Sustainability

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In-vessel composting of HMX and RDX contaminated sludge using microbes isolated from contaminated site

Cited by 6 publications

References 32 publications

Screening of high-efficiency nitrogen-fixing bacteria from the traditional Chinese medicine plant Astragalus mongolicus and its effect on plant growth promotion and bacterial communities in the rhizosphere

Screening of high-efficiency nitrogen-fixing bacteria from the traditional Chinese medicine plant Astragalus mongolicus and its effect on plant growth promotion and bacterial communities in the rhizosphere

Exploration of Potential Indigenous Non-phytopathogenic Fungi for Bio-organic Fertilizer Recycling from Organic Waste

Introduction to Harnessing Microbial Potential for Multifarious Applications

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