Recovery and environmental recycling of sediments: the experience of CNR-IRET Pisa

Macci, Cristina; Vannucchi, Francesca; Doni, Serena; Peruzzi, Eleonora; Lucchetti, Stefano; Castellani, Maria Rita; Masciandaro, Grazia

doi:10.1007/s11368-022-03162-7

Cited by 12 publications

(7 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The marine port sediment came from Italy (Livorno Port), and prior to its use, it was phytoremediated for 2 years [ 19 ], briefly: the phytoremediation treatment was conducted at a pilot scale using 12 not covered containers of about 1 m [ 3 ] each. The following plant treatments were tested: Paspalum vaginatum, Phragmites australis, Spartium Junceum, P. vaginatum, Nerium oleander, P. vaginatum, Tamarix gallica, P. vaginatum , and unplanted control.…”

Section: Methodsmentioning

confidence: 99%

Effects of marine sediment as agricultural substrate on soil microbial diversity: an amplicon sequencing study

Núñez-Gómez,

Melgarejo,

Martínez-Nicolás

et al. 2023

Environmental Microbiome

View full text Add to dashboard Cite

Background The soil microbiota has a direct impact on plant development and other metabolic systems, such as the degradation of organic matter and the availability of microelements and metabolites. In the context of agricultural soils, microbial activity is crucial for maintaining soil health and productivity. Thus, the present study aimed to identify, characterize, and quantify the microbial communities of four types of substrates with varying proportions of marine port sediment used for cultivating lemons. By investigating microbial diversity and relative abundance, the work aimed to highlight the importance of soil microbial communities in agriculture when alternative culture media was used. Results The composition and structure of the sampled microbial communities were assessed through the amplification and sequencing of the V3-V4 variable regions of the 16 S rRNA gene The results revealed a diverse microbial community composition in all substrate samples, with a total of 41 phyla, 113 classes, 266 orders, 405 families, 715 genera, and 1513 species identified. Among these, Proteobacteria, Bacteroidota, Planctomycetota, Patescibacteria, Chloroflexi, Actinobacteriota, Acidobacteriota, Verrucomicrobiota, and Gemmatimonadota accounted for over 90% of the bacterial reads, indicating their dominance in the substrates. Conclusions The impact of the substrate origin on the diversity and relative abundace of the microbiota was confirmed. The higher content of beneficial bacterial communities for plant development identified in peat could explain why is considered an ideal agricultural substrate. Development of “beneficial for plants” bacterial communities in alternative agricultural substrates, regardless of the edaphic characteristics, opens the possibility of studying the forced and specific inoculation of these culture media aiming to be agriculturally ideals.

show abstract

Section: Methodsmentioning

confidence: 99%

Effects of marine sediment as agricultural substrate on soil microbial diversity: an amplicon sequencing study

Núñez-Gómez,

Melgarejo,

Martínez-Nicolás

et al. 2023

Environmental Microbiome

View full text Add to dashboard Cite

show abstract

“…Pomegranate trees (Punica granatum L., cv "Purple Queen") were cultivated in 40 L polyethylene pots using three different substrates: (1) 100% peat (PS0) as a substrate control; (2) 100% dredged remediated sediments (PS100); and (3) 50% peat and dredged remediated sediment mixed (PS50). The dredged remediated sediments (PS100) used came from Livorno Port (Italy) and was previously phytoremediated for three years [24,25]. The PS100 characteristics and composition were already reported by the authors [26,27].…”

Section: Plant Materials and Experimental Designmentioning

confidence: 96%

Metabolomic Approach to Study the ‘Purple Queen’ Pomegranate Cultivar Response to Alternative Culture Media and Phenological Stages

Martínez-Nicolás

Hernández

Núñez-Gómez

et al. 2023

Foods

View full text Add to dashboard Cite

The increasingly evident threat of depletion of world peat bogs is encouraging the search for and study of alternative agricultural substrates that can fully or partially replace peat, guaranteeing food supply (quality and quantity). On the other hand, the identification of the potential for the reuse of waste from relevant economic activities has increased in recent years, mainly motivated by the change to a sustainable circular economy, as is the case of port sediments. Taking into account that significant volumes of dredged port sediments are generated annually so that ports can maintain their economic activity, it is necessary to find objective, sustainable and safe reuse alternatives. In this sense, the objective of this study was to study the response of the “Purple Queen” pomegranate when grown with dredged port sediment. For this, the fruit production (kg), number of fruits (fruits tree-1), fruit weight (g), and seed yield (%) aiming to verify the correct tree development were evaluated. In addition, a 1H-NMR foliar metabolomic study for the three most relevant phenological phases was performed (flowering, fruit development, and post-harvest) to identify metabolic changes in trees. In total, 29 metabolites were identified; among them, 11 were amino acids, 6 organic acids, 5 sugars, and 7 secondary metabolites. The good agronomical development of the trees and fruits indicated the potential for using the dredged sediment as an agricultural substrate. On the other hand, the results revealed that the greatest variability in the metabolomic study occurred between the phenological phases and a lower variability is explained by the substrates used.

show abstract

“…The port sediment came from Italy (Livorno Port), and previously its use, it was phytoremediated for 4 years [17]. The same port sediment has already been used successfully, mixed with other substrates, for food, non-food and horticultural crops [13][14][15].…”

Section: Soil Samplesmentioning

confidence: 99%

Impact on the soil microbiota of marine sediment content as an agricultural substrate: metagenomic 16S rRNA analyzes

Núñez-Gómez

Melgarejo

Martínez-Nicolás

et al. 2022

Preprint

View full text Add to dashboard Cite

Background: The soil microorganisms play a fundamental role in maintaining the key functions of these ecosystems, with emphasis on agricultural soils, since they present a direct impact on the plant development and other metabolic systems as the degradation of organic matter, availability of microelements and/or metabolites, among others. In this context, the present study aimed to identify, characterise and quantify the microbial communities of four types of soils with different proportions of port sediment used to cultivate lemons. Results: The composition and structure of the sampled microbial communities were assessed through the amplification and sequencing of the V3-V4 variable regions of the 16S rRNA gene. The results were processed with microbiome bioinformatics platform QIIME2 and an open-source software package, Dada2. A total of 41 phylum, 113 classes, 266 orders, 405 families, 715 genera and 1513 species were identified in all the soil samples, where Proteobacteria, Bacteriodota, Planctomycetota, Patescibacteria, Chloroflexi, Actinobacteriota, Acidobacteriota, Verrucomicrobiota and Gemmatimonadota, represented more than 90% of the identified bacterial reads. Conclusions: The impact of the substrate origin on the diversity, qualitatively and quantitatively, of the soil microbiota was confirmed. The higher content of beneficial bacterial communities for plant development identified in peat could explain why is considered an ideal agricultural substrate. Development of "beneficial for plants" bacterial communities in alternative agricultural substrates, regardless of the edaphic characteristics, opens the possibility of studying the forced and specific inoculation of these culture media aiming to be agriculturally ideals.

show abstract

Recovery and environmental recycling of sediments: the experience of CNR-IRET Pisa

Cited by 12 publications

References 22 publications

Effects of marine sediment as agricultural substrate on soil microbial diversity: an amplicon sequencing study

Effects of marine sediment as agricultural substrate on soil microbial diversity: an amplicon sequencing study

Metabolomic Approach to Study the ‘Purple Queen’ Pomegranate Cultivar Response to Alternative Culture Media and Phenological Stages

Impact on the soil microbiota of marine sediment content as an agricultural substrate: metagenomic 16S rRNA analyzes

Contact Info

Product

Resources

About