The Sustainable Use of Delftia in Agriculture, Bioremediation, and Bioproducts Synthesis

Braña, Victoria; Cagide, Célica; Morel, María A.

doi:10.1007/978-981-10-2555-6_11

Cited by 20 publications

(16 citation statements)

References 144 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has also been reported that Delftia sp. have potential roles in bioremediation of organic and inorganic pollutants and production of industrially valuable compounds [39]. In addition, the Delftia sp.…”

Section: Discussionmentioning

confidence: 99%

The Study on the Cultivable Microbiome of the Aquatic Fern Azolla Filiculoides L. as New Source of Beneficial Microorganisms

et al. 2019

View full text Add to dashboard Cite

The aim of the study was to determine the still not completely described microbiome associated with the aquatic fern Azolla filiculoides. During the experiment, 58 microbial isolates (43 epiphytes and 15 endophytes) with different morphologies were obtained. We successfully identified 85% of microorganisms and assigned them to 9 bacterial genera: Achromobacter, Bacillus, Microbacterium, Delftia, Agrobacterium, and Alcaligenes (epiphytes) as well as Bacillus, Staphylococcus, Micrococcus, and Acinetobacter (endophytes). We also studied an A. filiculoides cyanobiont originally classified as Anabaena azollae; however, the analysis of its morphological traits suggests that this should be renamed as Trichormus azollae. Finally, the potential of the representatives of the identified microbial genera to synthesize plant growth-promoting substances such as indole-3-acetic acid (IAA), cellulase and protease enzymes, siderophores and phosphorus (P) and their potential of utilization thereof were checked. Delftia sp. AzoEpi7 was the only one from all the identified genera exhibiting the ability to synthesize all the studied growth promoters; thus, it was recommended as the most beneficial bacteria in the studied microbiome. The other three potentially advantageous isolates (Micrococcus sp. AzoEndo14, Agrobacterium sp. AzoEpi25 and Bacillus sp. AzoEndo3) displayed 5 parameters: IAA (excluding Bacillus sp. AzoEndo3), cellulase, protease, siderophores (excluding Micrococcus sp. AzoEndo14), as well as mineralization and solubilization of P (excluding Agrobacterium sp. AzoEpi25).

show abstract

Section: Discussionmentioning

confidence: 99%

The Study on the Cultivable Microbiome of the Aquatic Fern Azolla Filiculoides L. as New Source of Beneficial Microorganisms

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Other members of order Burkholderiales associated with forest upper included genus Delftia and Massilia. Whereas Delftia are plant growth-promoting rhizobacterium characterized by the ability to transform or degrade a wide variety of organic and inorganic compounds including metallic ions (Braña et al, 2016), members of genus Massilia are important degraders of complex polysaccharides in soils (Wieczorek et al, 2019). Collectively, the differential abundance of these taxa suggests the key role they play in nutrient cycling and mineral weathering, mainly in the highly leached sandy/stony and nutrient-poor acidic soils characteristic of the steeper forest upper ecosystems.…”

Section: Distribution Of Bacterial Taxa Across and Specific To Forestmentioning

confidence: 99%

Local Geomorphological Gradients and Land Use Patterns Play Key Role on the Soil Bacterial Community Diversity and Dynamics in the Highly Endemic Indigenous Afrotemperate Coastal Scarp Forest Biome

2021

View full text Add to dashboard Cite

Southern Afrotemperate forests are small multi-layered and highly fragmented biodiversity rich biomes that support unique flora and fauna endemism. However, little is known about the microbial community and their contribution to these ecosystems. In this study, high throughput sequencing analysis was used to investigate the soil bacterial community structure and function, and understand the effect of local topography/geomorphological formations and land use patterns on a coastal scarp forest. Soil samples were collected from three forest topography sites: upper (steeper gradients, 30–55°; open canopy cover, <30%), mid (less steep, 15–30°; continuous forest canopy, >80%), and lower (flatter gradient, <15°; open canopy cover, 20–65%), and from the adjacent sugarcane farms. Results indicated that forest soils were dominated by members of phyla Proteobacteria (mainly members of α-proteobacteria), Actinobacteria, Acidobacteria, Firmicutes, and Planctomycetes, while Actinobacteria and to a lesser extent β-proteobacteria and γ-proteobacteria dominated SC soils. The core bacterial community clustered by habitat (forest vs. sugarcane farm) and differed significantly between the forest topography sites. The Rhizobiales (genera Variibacter, Bradyrhizobium, and unclassified Rhizobiales) and Rhodospirallales (unclassified Rhodospirillum DA111) were more abundant in forest mid and lower topographies. Steeper forest topography (forest_upper) characterized by the highly leached sandy/stony acidic soils, low in organic nutrients (C and N) and plant densities correlated to significant reduction of bacterial diversity and richness, associating significantly with members of order Burkholderiales (Burkholderia-Paraburkholderia, Delftia, and Massilia) as the key indicator taxa. In contrast, changes in the total nitrogen (TN), soil organic matter (SOM), and high acidity (low pH) significantly influenced bacterial community structure in sugarcane farm soils, with genus Acidothermus (Frankiales) and uncultured Solirubrobacterales YNFP111 were the most abundant indicator taxa. Availability of soil nutrients (TN and SOM) was the strongest driver of metabolic functions related to C fixation and metabolism, N and S cycling; these processes being significantly abundant in forest than sugarcane farm soils. Overall, these results revealed that the local topographical/geomorphological gradients and sugarcane farming affect both soil characteristics and forest vegetation (canopy coverage), that indirectly drives the structure and composition of bacterial communities in scarp forest soils.

show abstract

“…Here, we describe the draft genome sequence of Delftia acidovorans strain D4B, which was isolated from soil contaminated with perfluorinated compounds (PFCs). Delftia acidovorans strains are environmental bacteria with diverse metabolic pathways that make them strong candidates for bioremediation ( 1 ). D. acidovorans strain D4B grows aerobically in the presence of either 1 ppm or 100 ppm of the perfluoroalkyl substance (PFAS) perfluorooctanoic acid (PFOA) in Raymond’s medium ( 2 ) supplemented with 1,000 ppm glucose at 30°C with shaking.…”

Section: Announcementmentioning

confidence: 99%

Draft Genome Sequence of the Bacterium Delftia acidovorans Strain D4B, Isolated from Soil

Harris

Gross

Kemball

et al. 2021

Microbiol Resour Announc

View full text Add to dashboard Cite

show abstract

The Sustainable Use of Delftia in Agriculture, Bioremediation, and Bioproducts Synthesis

Cited by 20 publications

References 144 publications

The Study on the Cultivable Microbiome of the Aquatic Fern Azolla Filiculoides L. as New Source of Beneficial Microorganisms

The Study on the Cultivable Microbiome of the Aquatic Fern Azolla Filiculoides L. as New Source of Beneficial Microorganisms

Local Geomorphological Gradients and Land Use Patterns Play Key Role on the Soil Bacterial Community Diversity and Dynamics in the Highly Endemic Indigenous Afrotemperate Coastal Scarp Forest Biome

Draft Genome Sequence of the Bacterium Delftia acidovorans Strain D4B, Isolated from Soil

Contact Info

Product

Resources

About