Study on gender differences between male and female Sargassum thunbergii based on metabolomic analysis and physiological functions

Qiu, Tianyi; Sun, Yan; Qu, Tongfei; Xue, Song; Chen, Jun; Zang, Yu; Liu, Qian; Tang, Xuexi

doi:10.1016/j.algal.2023.103267

Cited by 1 publication

(1 citation statement)

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“…Tian et al found that increasing NH 4 + -N concentration, GS activity decreased while GDH expression levels increased [59]. In this pathway, α-ketoglutarate was converted to glutamate salt by GDH [60,61].…”

Section: Removal Mechanism and Limiting Factors Of Oocystis Lacustris...mentioning

confidence: 99%

Stress Responses and Ammonia Nitrogen Removal Efficiency of Oocystis lacustris in Saline Ammonium-Contaminated Wastewater Treatment

Zhu,

Zhang,

Chen

et al. 2024

Toxics

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The increasing concern over climate change has spurred significant interest in exploring the potential of microalgae for wastewater treatment. Among the various types of industrial wastewaters, high-salinity NH4+-N wastewater stands out as a common challenge. Investigating microalgae’s resilience to NH4+-N under high-salinity conditions and their efficacy in NH4+-N utilization is crucial for advancing industrial wastewater microalgae treatment technologies. This study evaluated the effectiveness of employing nitrogen-efficient microalgae, specifically Oocystis lacustris, for NH4+-N removal from saline wastewater. The results revealed Oocystis lacustris’s tolerance to a Na2SO4 concentration of 5 g/L. When the Na2SO4 concentration reached 10 g/L, the growth inhibition experienced by Oocystis lacustris began to decrease on the 6th day of cultivation, with significant alleviation observed by the 7th day. Additionally, the toxic mechanism of saline NH4+-N wastewater on Oocystis lacustris was analyzed through various parameters, including chlorophyll-a, soluble protein, oxidative stress indicators, key nitrogen metabolism enzymes, and microscopic observations of algal cells. The results demonstrated that when the Oocystis lacustris was in the stationary growth phase with an initial density of 2 × 107 cells/L, NH4+-N concentrations of 1, 5, and 10 mg/L achieved almost 100% removal of the microalgae on the 1st, 2nd, and 4th days of treatment, respectively. On the other hand, saline NH4+-N wastewater minimally impacted photosynthesis, protein synthesis, and antioxidant systems within algal cells. Additionally, NH4+-N within the cells was assimilated into glutamic acid through glutamate dehydrogenase-mediated pathways besides the conventional pathway involving NH4+-N conversion into glutamine and assimilation amino acids.

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Section: Removal Mechanism and Limiting Factors Of Oocystis Lacustris...mentioning

confidence: 99%

Stress Responses and Ammonia Nitrogen Removal Efficiency of Oocystis lacustris in Saline Ammonium-Contaminated Wastewater Treatment

Zhu,

Zhang,

Chen

et al. 2024

Toxics

View full text Add to dashboard Cite

show abstract

Study on gender differences between male and female Sargassum thunbergii based on metabolomic analysis and physiological functions

Cited by 1 publication

References 50 publications

Stress Responses and Ammonia Nitrogen Removal Efficiency of Oocystis lacustris in Saline Ammonium-Contaminated Wastewater Treatment

Stress Responses and Ammonia Nitrogen Removal Efficiency of Oocystis lacustris in Saline Ammonium-Contaminated Wastewater Treatment

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