Use of selenium fertilizers for production of Se‐enriched Kenaf (<i>Hibiscus cannabinus</i>): Effect on Se concentration and plant productivity

Lavu, Rama; Schepper, Veerle De; Steppe, Kathy; Prasad, M.N.V.; Tack, Filip; Laing, Gijs Du

doi:10.1002/jpln.201200339

Cited by 20 publications

(13 citation statements)

References 40 publications

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“…Total Se concentration was determined by Inductively coupled plasma – mass spectrometer (ICP-MS) [46] . Cultured after 6 days, the 100 mg dried algal sample was digested with concentrated nitric acid and H 2 O 2 (3∶1 v/v) in a digestive stove (Qian Jian Measuring Instrument Co., Ltd., China) at 180°C for 3 h. Samples were allowed to cool, dissolved in 0.6% HNO 3 and filtered through Whattman fulter paper.…”

Section: Methodsmentioning

confidence: 99%

Selenium Accumulation in Unicellular Green Alga Chlorella vulgaris and Its Effects on Antioxidant Enzymes and Content of Photosynthetic Pigments

et al. 2014

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The aim of the present study was to investigate selenite effects in the unicellular green algae Chlorella vulgaris as a primary producer and the relationship with intracellular bioaccumulation. The effects of selenite were evaluated by measuring the effect of different selenite concentrations on algal growth during a 144 h exposure period. It was found that lower Se concentrations (≤75 mg L−1) positively promoted C. vulgaris growth and acted as antioxidant by inhibiting lipid peroxidation (LPO) and intracellular reactive oxygen species (ROS). The antioxidative effect was associated with an increase in guaiacol peroxidase (GPX), catalase (CAT), superoxide dismutase (SOD) and photosynthetic pigments. Meanwhile, significant increase in the cell growth rate and organic Se content was also detected in the algae. In contrast, these changes were opposite in C. vulgaris exposed to Se higher than 100 mg L−1. The antioxidation and toxicity appeared to be correlated to Se bioaccumulation, which suggests the appropriate concentration of Se in the media accumulation of C. vulgaris should be 75 mg L−1. Taken together, C. vulgaris possesses tolerance to Se, and Se-Chlorella could be developed as antioxidative food for aquaculture and human health.

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Section: Methodsmentioning

confidence: 99%

Selenium Accumulation in Unicellular Green Alga Chlorella vulgaris and Its Effects on Antioxidant Enzymes and Content of Photosynthetic Pigments

et al. 2014

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“…Iodine (I) was determined according to (Nitschke and Stengel 2015). Selenium (Se) was determined by an inductively coupled plasma-mass spectrometer (ICP-MS) (Lavu et al 2013).…”

Section: Chemical Analysesmentioning

confidence: 99%

Nutritional potential of marine and freshwater algae as dietary supplements for growing rabbits

Hafsa

Khalel

El-Gindy

et al. 2021

Italian Journal of Animal Science

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The aim of this study was to investigate the effect of including marine and freshwater algae in rabbit diets on their performance, digestibility, carcass characteristics, and blood metabolites. One hundred growing male rabbits, aged 30 d and weighing 783.5 ± 2.01 g initial body weight, were randomly assigned to five treatment groups (n ¼ 20 rabbits). Five comparable dietary groups were formulated as follows: the control diet was a basal diet without aquatic plants inclusion, while the diets for the other four treatments included the basal diet plus 4% of marine algae (U. lactuca and P. capillacea) or freshwater algae (S. polyrrhiza and C. aegagropila). Compared with the control group, final body weight, daily weight gain, and feed conversion ratio improved significantly in UL group; followed by those in PC and SP groups (p < .05). Total digestible nutrients and digestible crude protein increased significantly in UL, PC and SP groups. Rabbits in the CA group had lower nitrogen intake, N digested, and N balance decreased than the other groups (p < .05). The UL group had dressing weight and meat protein significant increases, but the SP and CA groups had significant increases in liver, kidney, and spleen weights (p < .05). Including marine and freshwater algae reduced (p < .05) total lipids, total bilirubin, triglycerides, and cholesterol especially in the UL and PC groups, and similarly, HDL and LDL levels were lower in the UL, PC, and SP groups compared to the CA and control groups. In conclusion, the responses in performance, digestibility, and blood metabolites suggest that aquatic plants (with the exception of CA) have the potential to be a sustainable feedstock for growing rabbits' diets. HIGHLIGHTSUlva lactuca, Pterocladia capillacea and Spirodela polyrrhiza improve rabbits' performance. Marine and freshwater algae inclusion showed no signs of disease. Marine and freshwater algae reduced total lipids, triglycerides, and cholesterol.

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“…The application of soil Se fertilizers has increased the total Se and also bioavailable Se for plant uptake ( Zhao et al, 2005 ; Broadley et al, 2010 ; Lavu et al, 2012 , 2013 ; Premarathna et al, 2012 ; Hawrylak-Nowak, 2013 ; Smolen et al, 2014 ). Compared with natural biofortiﬁcation and foliar Se fertilizer application approaches, the soil Se fertilizers can be effective under uniform soil conditions.…”

Section: Selenium-biofortified Agricultural Products In Chinamentioning

confidence: 99%

Biofortification and phytoremediation of selenium in China

et al. 2015

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Selenium (Se) is an essential trace element for humans and animals but at high concentrations, Se becomes toxic to organisms due to Se replacing sulfur in proteins. Selenium biofortification is an agricultural process that increases the accumulation of Se in crops, through plant breeding, genetic engineering, or use of Se fertilizers. Selenium phytoremediation is a green biotechnology to clean up Se-contaminated environments, primarily through phytoextraction and phytovolatilization. By integrating Se phytoremediation and biofortification technologies, Se-enriched plant materials harvested from Se phytoremediation can be used as Se-enriched green manures or other supplementary sources of Se for producing Se-biofortified agricultural products. Earlier studies primarily aimed at enhancing efficacy of phytoremediation and biofortification of Se based on natural variation in progenitor or identification of unique plant species. In this review, we discuss promising approaches to improve biofortification and phytoremediation of Se using knowledge acquired from model crops. We also explored the feasibility of applying biotechnologies such as inoculation of microbial strains for improving the efficiency of biofortification and phytoremediation of Se. The key research and practical challenges that remain in improving biofortification and phytoremediation of Se have been highlighted, and the future development and uses of Se-biofortified agricultural products in China has also been discussed.

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Use of selenium fertilizers for production of Se‐enriched Kenaf (Hibiscus cannabinus): Effect on Se concentration and plant productivity

Cited by 20 publications

References 40 publications

Selenium Accumulation in Unicellular Green Alga Chlorella vulgaris and Its Effects on Antioxidant Enzymes and Content of Photosynthetic Pigments

Selenium Accumulation in Unicellular Green Alga Chlorella vulgaris and Its Effects on Antioxidant Enzymes and Content of Photosynthetic Pigments

Nutritional potential of marine and freshwater algae as dietary supplements for growing rabbits

Biofortification and phytoremediation of selenium in China

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