Promoting Effect of Plant Hormone Gibberellin (Ga3) on Co-Metabolism of Sulfamethoxazole by Microalgae Chlorella Pyrenoidosa
In this study, sodium acetate (NaAC) as a co-substrate effectively promoted the metabolism of sulfamethoxazole (SMX) by microalgae Chlorella pyrenoidosa. In the cultivation supplied with 5.0 and 10.0 g L-1 NaAC, 51.1% and 61.2% SMX was removed, respectively. On this basis, the improvement effect of plant hormone gibberellin (GA3) on SMX removal by 5 g L-1 NaAC supplied as co-substrate was further investigated. The results showed that biodegradation played decisive role in the removal of SMX. As a plant hormone, GA3 effectively improved the co-metabolic removal efficiency of SMX by C. pyrenoidosa. Especially when GA3 dosage reached 10.0 and 50.0 mg L-1, C. pyrenoidosa showed a very high SMX removal rate of 83.5% and 95.3%, respectively. Transcriptome analysis showed that GA3 promoted the removal of SMX by C. pyrenoidosa was the result of the combined action of exogenous and endogenous plant hormones
Year of publication: |
[2022]
|
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Authors: | Gao, Feng ; Yang, Lei ; Chen, Ai-Jie ; Zhou, Wang-Hao ; Chen, Dong-Zhi ; Chen, Jian-Meng |
Publisher: |
[S.l.] : SSRN |
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freely available
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