“…Both shrimp effluents (WW and DSW) exhibited comparable physicochemical values and elemental composition (Table 1). Concentrations of both Cl − and Na + in the WW effluents from the shrimp culture were higher than the reported characteristic concentrations for this type of water or those specified as restriction limits (Cl − , 355 mg l −1 ; León-Cañedo et al, 2019). The two shrimp effluents evaluated exhibited concentrations below those from the guidelines for trace metals in irrigation water so that the plants do not exhibit toxic effects.…”
Section: Resultscontrasting
confidence: 57%
“…The shrimp effluents from both treatments, WW and DSW, were characterized for physicochemical parameters, major components, trace metals and nutrients. This system, and the operating conditions, are described in detail in our previous paper (León-Cañedo et al, 2019) and in the supplemental section.Fig. 1Scheme of the experimental system used in this study.…”
Section: Methodsmentioning
confidence: 99%
“…In a recent paper, León-Cañedo et al (2019) investigated the concentrations of heavy metals in the lettuce Lactuca sativa grown in a deep flow technique (DFT) hydroponic system with shrimp culture effluent. In the present study, we include results obtained during the same experiments, on the quality of harvested lettuce in terms of phenolic compounds and their antioxidant capacity.…”
Highlights
Control lettuce showed higher levels of proline than lettuce from other treatments.
Well water lettuce exhibited higher levels of phenols than that from other treatments.
Lettuce with low-salinity shrimp effluent exhibit a quality comparable to the control.
“…Both shrimp effluents (WW and DSW) exhibited comparable physicochemical values and elemental composition (Table 1). Concentrations of both Cl − and Na + in the WW effluents from the shrimp culture were higher than the reported characteristic concentrations for this type of water or those specified as restriction limits (Cl − , 355 mg l −1 ; León-Cañedo et al, 2019). The two shrimp effluents evaluated exhibited concentrations below those from the guidelines for trace metals in irrigation water so that the plants do not exhibit toxic effects.…”
Section: Resultscontrasting
confidence: 57%
“…The shrimp effluents from both treatments, WW and DSW, were characterized for physicochemical parameters, major components, trace metals and nutrients. This system, and the operating conditions, are described in detail in our previous paper (León-Cañedo et al, 2019) and in the supplemental section.Fig. 1Scheme of the experimental system used in this study.…”
Section: Methodsmentioning
confidence: 99%
“…In a recent paper, León-Cañedo et al (2019) investigated the concentrations of heavy metals in the lettuce Lactuca sativa grown in a deep flow technique (DFT) hydroponic system with shrimp culture effluent. In the present study, we include results obtained during the same experiments, on the quality of harvested lettuce in terms of phenolic compounds and their antioxidant capacity.…”
Highlights
Control lettuce showed higher levels of proline than lettuce from other treatments.
Well water lettuce exhibited higher levels of phenols than that from other treatments.
Lettuce with low-salinity shrimp effluent exhibit a quality comparable to the control.
“…2018; León‐Cañedo et al . 2019). Since the quality of the harvested products is a very important factor for commercialization, a complementary study was carried out on the quality of the Tropicana M1 variety lettuce in all treatments (Ramos‐Sotelo et al .…”
Section: State Of the Art Of Integrated Shrimp–plant Culturesmentioning
Shrimp farming is one of the most important worldwide developed sectors; however, this development has induced a series of negative environmental impacts. One strategy to reduce these impacts is the integration or co‐culture of shrimp farming with agriculture. The integration of shrimp farming with commercial plants has been carried out with the objective of minimizing the environmental impact through the use of biosolids and effluents enriched with nutrients, taking advantage of available resources and generating greater income for producers. The aim of this review was to present the state of the art of integrated shrimp–vascular plant culture, focus on those plants with commercial interest and describe the different forms of integration. We reviewed over 158 studies dealing with integrated shrimp–plant cultures at different salinities, as well as the influence of salinity in the performance of both biological components. Plants suitable for the integration with shrimp farming are also examined, including advantages and disadvantages. Finally, several features that require further research are identified.
“…Excessive Cd 2+ and Pb 2+ accumulation in water spinach can reduce yields and cause potential threats to human health through the food chain [6][7][8]. Therefore, to ensure the safety of agricultural products, it is urgent that we carry out the bioremediation of farmland to remove medium and light heavy metals exceeding standard levels [9,10].…”
Microbial immobilization is considered as a novel and environmentally friendly technology that uses microbes to reduce heavy metals accumulation in plants. To explore microbial resources which are useful in these applications, three water spinach rhizosphere soils polluted by different levels of heavy metals (heavy pollution (CQ), medium pollution (JZ), and relative clean (NF)) were collected. The community composition of heavy metal-immobilizing bacteria in rhizosphere soils and its effects on reducing the Cd2+ and Pb2+ concentrations in water spinach were evaluated. Four hundred strains were isolated from the CQ (belonging to 3 phyla and 14 genera), JZ (belonging to 4 phyla and 25 genera) and NF (belonged to 6 phyla and 34 genera) samples, respectively. In the CQ sample, 137 strains showed a strong ability to immobilize Cd2+ and Pb2+, giving Cd2+ and Pb2+ removal rates of greater than 80% in solution; Brevundimonas, Serratia, and Pseudoarthrobacter were the main genera. In total, 62 strains showed a strong ability to immobilize Cd2+ and Pb2+ in the JZ sample and Bacillus and Serratia were the main genera. A total of 22 strains showed a strong ability to immobilize Cd2+ and Pb2+ in the NF sample, and Bacillus was the main genus. Compared to the control, Enterobacter bugandensis CQ-7, Bacillus thuringensis CQ-33, and Klebsiella michiganensis CQ-169 significantly increased the dry weight (17.16–148%) of water spinach and reduced the contents of Cd2+ (59.78–72.41%) and Pb2+ (43.36–74.21%) in water spinach. Moreover, the soluble protein and Vc contents in the shoots of water spinach were also significantly increased (72.1–193%) in the presence of strains CQ-7, CQ-33 and CQ-169 compared to the control. In addition, the contents of Cd and Pb in the shoots of water spinach meet the standard for limit of Cd2+ and Pb2+ in vegetables in the presence of strains CQ-7, CQ-33 and CQ-169. Thus, the results provide strains as resources and a theoretical basis for the remediation of Cd- and Pb-contaminated farmlands for the safe production of vegetables.
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