EFFECTS OF SALINITY ON GROWTH AND CHLOROPHYLL FLUORESCENCE OF <i>MICROCYSTIS AERUGINOSA</i> UNDER ARTEMISININ STRESS

WANG Jiajia; NI Lixiao; JIANG Zhiyun; DU Cunhao; FANG Yuanyi; ZHU Chengjie; XU Chu; SANG Wenlu; CHEN Xuqing; XU Jian; SU Hua

doi:10.13205/j.hjgc.202301005

Volume 41 Issue 1

Jan. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(1): 35-41

WANG Jiajia, NI Lixiao, JIANG Zhiyun, DU Cunhao, FANG Yuanyi, ZHU Chengjie, XU Chu, SANG Wenlu, CHEN Xuqing, XU Jian, SU Hua. EFFECTS OF SALINITY ON GROWTH AND CHLOROPHYLL FLUORESCENCE OF MICROCYSTIS AERUGINOSA UNDER ARTEMISININ STRESS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(1): 35-41. doi: 10.13205/j.hjgc.202301005

Citation:

WANG Jiajia, NI Lixiao, JIANG Zhiyun, DU Cunhao, FANG Yuanyi, ZHU Chengjie, XU Chu, SANG Wenlu, CHEN Xuqing, XU Jian, SU Hua. EFFECTS OF SALINITY ON GROWTH AND CHLOROPHYLL FLUORESCENCE OF MICROCYSTIS AERUGINOSA UNDER ARTEMISININ STRESS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(1): 35-41. doi: 10.13205/j.hjgc.202301005

Citation:

WANG Jiajia, NI Lixiao, JIANG Zhiyun, DU Cunhao, FANG Yuanyi, ZHU Chengjie, XU Chu, SANG Wenlu, CHEN Xuqing, XU Jian, SU Hua. EFFECTS OF SALINITY ON GROWTH AND CHLOROPHYLL FLUORESCENCE OF MICROCYSTIS AERUGINOSA UNDER ARTEMISININ STRESS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(1): 35-41. doi: 10.13205/j.hjgc.202301005

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EFFECTS OF SALINITY ON GROWTH AND CHLOROPHYLL FLUORESCENCE OF MICROCYSTIS AERUGINOSA UNDER ARTEMISININ STRESS

doi: 10.13205/j.hjgc.202301005

WANG Jiajia^1,2,
NI Lixiao^{1,2
,
,},
JIANG Zhiyun^1,2,
DU Cunhao^1,2,
FANG Yuanyi^1,2,
ZHU Chengjie^1,2,
XU Chu^1,2,
SANG Wenlu^1,2,
CHEN Xuqing³,
XU Jian³,
SU Hua³

1. College of Environment, Hohai University, Nanjing 210098, China;
2. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;
3. River and Lake Governance and Water Resources Management Center, Wuxi 214000, China

Received Date: 2022-09-04
Available Online: 2023-03-23

Abstract

Abstract

The allelopathic substance artemisinin has been proven to be effective in controlling cyanobacterial blooms. In order to explore whether the stress of artemisinin on Microcystis aeruginosa is affected by salinity, we studied the effects of artemisinin on the growth, chlorophyll-a content, and chlorophyll fluorescence parameters of Microcystis aeruginosa under different salinity conditions (0~15‰). The results showed that Microcystis aeruginosa had a certain salinity adaptability. Salinity of 5‰ could promote the growth, but the salinity above 10‰ had a significant inhibitory effect on the growth of Microcystis aeruginosa. After the addition of artemisinin, the promoting effect of low salinity on algae disappeared, the salinity strengthened the inhibition of artemisinin on Microcystis aeruginosa and the damage to the photosynthetic system, which was reflected in the destruction of photosynthetic pigments and photosynthetic structure, the reduction of photosynthetic reaction center activity, and the decreasing of electron transport capacity of PSⅡ receptor side. The research results could provide reference for the application of artemisinin in brackish water.
- salinity,
- artemisinin,
- Microcystis aeruginosa,
- chlorophyll fluorescence parameters,
- rapid light curve

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References(29)

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