Isolation and characterization of plant growth promoting bacteria (PGPB) from anaerobic digestate and their effect on common wheat (Triticum aestivum) seedling growth

Qi, Guangdou; Pan, Zhifei; Andriamanohiarisoamanana, Fetra J.; Yamashiro, Takaki; Iwasaki, Masahiro; Kawamoto, Keiko; Umetsu, Kazutaka

doi:10.25125/agriculture-journal-ijoear-nov-2017-11

Cited by 6 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this context, our results reinforce previous data indicating that psychrophilic AD is an efficient and viable process [61] to produce biogas with high methane content. The resulted digestate presented an absence or reduced load of potential microbial pathogens [50] and with the potential to harbor plant growth-promoting bacteria [62], which can benefit agricultural crops [63]. However, the feasibility of applying the digestate resulting of anaerobic digestion as a safe fertilizer for plants in large-scale agriculture still needs to be verified.…”

Section: Discussionmentioning

confidence: 99%

Microbial communities in anaerobic digesters change over time and sampling depth

et al. 2020

View full text Add to dashboard Cite

Anaerobic digestion (AD) is a process resulting from the anaerobic metabolism of specific microorganisms that produce an eco-friendly type of energy and a stabilized soil fertilizer. We described the microbial communities and their changes in three depths of BioKöhler® biodigester, fed with cattle manure for 18 days, under anaerobic incubation at the psychrophilic temperature range (~20°C). During the experiment, the maximum methane content in the raw biogas was 79.9%. Non-metric multidimensional scaling (MDS) showed significant differences among microbial communities in the bottom, medium, and upper depths. Considering all the periods of incubation, the microbial communities changed until the eighth day, and they remained stable from eighth to seventeenth days. Bacteroidetes, Firmicutes, and Synergistetes were the most abundant phyla in samples, representing approximately 41% of the total OTUs. The relative abundance of the phyla Euryarchaeota, Actinobacteria, Firmicutes, and Verrucomicrobia changed from bottom to medium sampling points. Moreover, Crenarchaeota differed in frequencies from medium to upper, and Acidobacteria from bottom to upper samples. Lentisphaerae, Chloroflexi, and LD1 were different solely at the bottom, whereas OP9 and Tenericutes only in the medium. Psychrophilic AD performed in this work removed pathogens like Salmonella and Escherichia, as observed at the digestate analyzed. This type of treatment of raw manure besides producing eco-friendly energy efficiently also generates a stabilized and safe biomass that can be used as fertilizer in soils.

show abstract

Section: Discussionmentioning

confidence: 99%

Microbial communities in anaerobic digesters change over time and sampling depth

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Indirectly, digestates may affect plant growth through modifications of the physical, chemical, and biological properties of the soil, for example, enhanced soil water holding capacity and CEC and improved soil structure (Stevenson, 1994). In addition, recent studies have identified beneficial microbes in digestates, such as plant growth promoting bacteria (PGPB) (Qi et al, 2017).…”

Section: Effects Of Msw Digestate On Plant Growthmentioning

confidence: 99%

Metal mobility in an anaerobic-digestate-amended soil: the role of two bioenergy crop plants and their metal phytoremediation potential

Bonet-Garcia,

Baldasso,

Robin

et al. 2023

Front. Environ. Sci.

View full text Add to dashboard Cite

Panicum virgatum and Pennisetum alopecuroides, two non-food bioenergy crops, were evaluated for their capacity to phyto-manage trace metals (Pb, Zn, Ni, Fe, Mn, Co, Cr, and Cu) from municipal solid waste digestate after its application to a marginal soil. For that, 90-day vertical soil column mesocosm (columns with 0.6 × 0.2 m) experiments were carried out to assess 1) the impact of digestate application on the health of marginal soil, 2) plant effect on digestate-borne trace metals’ mobility along the soil profile (measuring total metal levels and fractionation in different soil layers by atomic absorption spectroscopy, and 3) plant growth performance and trace metal (Pb, Zn, and Cu) uptake capacity. The results showed that trace metals were mostly confined in the 0–0.2 m soil horizon over the course of the experimental period, migrating from the digestate-amended soil layer (0–0.1 m) to the layer underneath (0.1–0.2 m) within the first 21 days and remaining stable afterward. No evidence of the trace metals’ mobility to deeper soil layers was detected. Migration of trace metals was reduced in the presence of P. virgatum and P. alopecuroides, suggesting a phytoremediation (phytostabilization) effect. For both plant species, no trace metal accumulation in the roots was observed (bioconcentration factor <1), although both plants showed a potential for Zn translocation for aboveground tissues (translocation factor >1). The growth of both plants was positively affected by municipal solid waste digestate application, which also improved soil quality (increased concentration of total organic carbon and available phosphorus, as well as cation exchange capacity and water holding capacity).

show abstract

“…Biosynthesis of IAA by Pseudomonas aeruginosa has been widely reported [59][60][61][62][63][64][65][66][67][68]; however, only a few studies have reported the production of GA3 by Pseudomonas aeruginosa [67][68][69]. Although cytokinin compounds have also been reported to be produced by Pseudomonas aeruginosa, there are quite a few reports on the biosynthesis of zeatin, and kinetin by this bacterial genus [68,[70][71][72].…”

Section: Assessment Of the Potential Biocontrol Of Robusta Coffee Nematodes And Plant-promoting Effect Of Pseudomonas Aeruginosa Tun03 Unmentioning

confidence: 99%

Potential Application of Rhizobacteria Isolated from the Central Highland of Vietnam as an Effective Biocontrol Agent of Robusta Coffee Nematodes and as a Bio-Fertilizer

et al. 2021

View full text Add to dashboard Cite

Robusta coffee is a major commercial crop in the Central Highland of Vietnam with high economic and export value. However, this crop is adversely affected by various pathogens, particularly nematodes. This study aimed to screen active anti-nematode rhizobacterial strains for sustainable coffee production. Among more than 200 isolates, the isolate TUN03 demonstrated efficient biocontrol with nearly 100% mortality of J2 coffee nematodes Meloidogyne spp. and 84% inhibition of nematode egg hatching. This active strain was identified as Pseudomonas aeruginosa TUN03 based on its 16S rRNA gene sequence and phylogenetic analysis. In greenhouse tests, the strain TUN03 significantly reduced the coffee nematode population in the rhizome-soil with an 83.23% inhibition rate and showed plant growth-promoting effects. Notably, this is the first report of the nematicidal effect of P. aeruginosa against coffee nematodes. This potent strain further showed an antifungal effect against various crop-pathogenic fungi and was found to be the most effective against Fusarium solani F04 (isolated from coffee roots) with a 70.51% inhibition rate. In addition, high-performance liquid chromatography analysis revealed that this bacterial strain also secretes plant growth regulators including indole acetic acid (IAA), gibberellic acid (GA3), kinetin, and zeatin in significant amounts of 100, 2700, 37, and 9.5 µg/mL, respectively. The data from this study suggest that P. aeruginosa TUN03 may be a potential biocontrol agent and biofertilizer for the sustainable production of Robusta coffee and other crops.

show abstract

Isolation and characterization of plant growth promoting bacteria (PGPB) from anaerobic digestate and their effect on common wheat (Triticum aestivum) seedling growth

Abstract: Abstract-

Cited by 6 publications

References 28 publications

Microbial communities in anaerobic digesters change over time and sampling depth

Microbial communities in anaerobic digesters change over time and sampling depth

Metal mobility in an anaerobic-digestate-amended soil: the role of two bioenergy crop plants and their metal phytoremediation potential

Potential Application of Rhizobacteria Isolated from the Central Highland of Vietnam as an Effective Biocontrol Agent of Robusta Coffee Nematodes and as a Bio-Fertilizer

Contact Info

Product

Resources

About