Microbial communities and nitrogen cycling in Litopenaeus vannamei and Mercenaria mercenaria polyculture ponds

Liu, Qian; Lei, Xijuan; Li, Junnan; Chu, Luxin; Wang, Fang; Shan, Hongwei; Hu, Fanguang

doi:10.1016/j.aqrep.2023.101769

Cited by 3 publications

(3 citation statements)

References 37 publications

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“…Different microorganisms have adapted to thrive at specific pH levels, ranging from highly acidic to highly alkaline conditions. The pH of a habitat can influence microbial processes such as nitrification and denitrification, which are essential for nitrogen cycling in ecosystems [ 86 , 87 ].…”

Section: Soil Macronutrientsmentioning

confidence: 99%

Rhizosphere Microorganisms Supply Availability of Soil Nutrients and Induce Plant Defense

Thepbandit,

Athinuwat

2024

Microorganisms

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Plant health is necessary for food security, which is a key determinant of secure and sustainable food production systems. Deficiency of soil nutrients and invasion of plant pathogens or insects are the main destroyers of the world’s food production. Synthetic fertilizers and chemical-based pesticides are frequently employed to combat the problems. However, these have negative impacts on microbial ecosystems and ecosystem functioning. Rhizosphere microorganisms have demonstrated their potency to improve or manage plant nutrients to encourage plant growth, resulting in increased yield and quality by converting organic and inorganic substances around the rhizosphere zone into available plant nutrients. Besides regulating nutrient availability and plant growth enhancement, rhizobacteria or fungi can restrict plant pathogens that cause disease by secreting inhibitory chemicals and boosting plant immunity to combat pests or pathogens. Thus, rhizosphere microorganisms are viewed as viable, alluring economic approaches for sustainable agriculture as biofertilizers and biopesticides. This review provides an overview of the role of rhizosphere microorganisms in soil nutrients and inducing of plant defenses. Moreover, a discussion is presented surrounding the recent consequences of employing these microorganisms and a sustainable strategy towards improving fertilization effectiveness, and encouraging stronger, more pest-resistant plants.

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Section: Soil Macronutrientsmentioning

confidence: 99%

Rhizosphere Microorganisms Supply Availability of Soil Nutrients and Induce Plant Defense

Thepbandit,

Athinuwat

2024

Microorganisms

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“…Microbes are the most important biological factors in the culture environment, and they are also affected by the environment [34][35][36]. In WD, the abundance of Rhodobacteraceae gradually increased, while that of Flavobacteriaceae remained stable.…”

Section: Characteristics and Succession Of Dominant Bacteria In The B...mentioning

confidence: 99%

Bacterial Community Characteristics and Roles in Nitrogen Transformation in Industrial Farming Systems of Litopenaeus vannamei

Shan,

Du,

et al. 2024

JMSE

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Industrial farming is one of the main farming systems used for L. vannamei, and it is also the main direction of development in the future. To investigate the role of the bacterial community in nitrogen transformation in industrial L. vannamei farming systems, we studied the concentration of nitrogen compounds, the bacterial community using 16S rRNA sequencing, and nitrogen cycling genes’ abundance using absolute quantitative PCR in aquaculture water (using seawater (WD) and groundwater mixed with seawater (CY)) and analyzed the correlations between them using a person analysis. The results showed that the bacterial α-diversity index (ACE, Shannon, and Sobs) significantly changed during culture in WD but not in CY. Bacterial community species composition analysis and linear discriminant analysis effect size (LEfSe analysis) revealed that Cyanobiaceae and Microbacteriaceae were the dominant bacteria and biomarkers in WD. Vibrionaceae, Ateromonadaceae, Microbacteriaceae, Saprospiraceae, and Cryomorphaceae were the dominant bacteria and biomarkers in CY. A functional annotation of procaryotic taxa (FAPROTAX) analysis revealed that the bacterial community in WD exhibited a greater phototrophic activity at early culture stages, while at the same stage, CY exhibited strong nitrate reduction. A correlation analysis of nitrogen cycling genes and environmental factors revealed that napA, narG, ureC, amoA, and nirK were significantly correlated with the concentrations of total ammonia nitrogen (TAN), nitrite (NO2−-N), nitrate (NO3−-N), and total nitrogen (TN) in WD. In CY, amoA was positively correlated and napA and nirK were negatively correlated with TAN and TN concentrations. A correlation analysis between bacterial abundance and environmental factors revealed that Flavobacteriaceae, Saprospiraceae, Cryomorphaceae, Cyanobiaceae, Halieaceae, and Cyclobacteriaceae were significantly correlated with the concentrations of TAN and NO2−-N. The above results indicated that the bacterial community in industrial shrimp farming systems changed under different conditions, with consequent changes in the abundance of genes being involved in the nitrogen cycle and in this biogeochemical process in the water. Our study facilitates further understanding of microbes and their functions in nitrogen cycling in industrial shrimp farming systems.

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“…The relationship between ecosystem microbial community structure and nitrogen removal performance and environmental factors was currently being explored in an attempt to explain the environmental factors that have the greatest influence on it [ 24 , 25 ]. In addition, the microbial community structure differs greatly among different aquaculture areas or aquaculture modes, and the dominant nitrogen removal pathways were also different [ 6 , 26 ]. These basic studies are conducive to understanding of the interaction between microbial community structure and environment in different ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Removal Performance and Microbial Community Structure of IMTA Ponds (Apostistius japonicus-Penaeus japonicus-Ulva)

Chen,

Tian,

Yuan

et al. 2024

Microb Ecol

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Denitrification and anaerobic ammonium oxidation (anammox) are key processes for nitrogen removal in aquaculture, reducing the accumulated nitrogen nutrients to nitrogen gas or nitrous oxide gas. Complete removal of nitrogen from aquaculture systems is an important measure to solve environmental pollution. In order to evaluate the nitrogen removal potential of marine aquaculture ponds, this study investigated the denitrification and anammox rates, the flux of nitrous oxide (N2O) at the water–air interface, the sediment microbial community structure, and the gene expression associated with the nitrogen removal process in integrated multi-trophic aquaculture (IMTA) ponds (Apostistius japonicus-Penaeus japonicus-Ulva) with different culture periods. The results showed that the denitrification and anammox rates in sediments increased with the increase of cultivation periods and depth, and there was no significant difference in nitrous oxide gas flux at the water–air interface between different cultivation periods (p > 0.05). At the genus and phylum levels, the abundance of microorganisms related to nitrogen removal reactions in sediments changed significantly with the increase of cultivation period and depth, and was most significantly affected by the concentration of particulate organic nitrogen (PON) in sediments. The expression of denitrification gene (narG, nirS, nosZ) in surface sediments was significantly higher than that in deep sediments (p < 0.05), and was negatively correlated with denitrification rate. All samples had a certain anammox capacity, but no known anammox bacteria were found in the microbial diversity detection, and the expression of gene (hzsB) related to the anammox process was extremely low, which may indicate the existence of an unknown anammox bacterium. The data of this study showed that the IMTA culture pond had a certain potential for nitrogen removal, and whether it could make a contribution to reducing the pollution of culture wastewater still needed additional practice and evaluation, and also provided a theoretical basis for the nitrogen removal research of coastal mariculture ponds. Graphical Abstract

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Microbial communities and nitrogen cycling in Litopenaeus vannamei and Mercenaria mercenaria polyculture ponds

Cited by 3 publications

References 37 publications

Rhizosphere Microorganisms Supply Availability of Soil Nutrients and Induce Plant Defense

Rhizosphere Microorganisms Supply Availability of Soil Nutrients and Induce Plant Defense

Bacterial Community Characteristics and Roles in Nitrogen Transformation in Industrial Farming Systems of Litopenaeus vannamei

Nitrogen Removal Performance and Microbial Community Structure of IMTA Ponds (Apostistius japonicus-Penaeus japonicus-Ulva)

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