Abstract：
:The algal growth and physiological characters of Aphanizomenon flos-aquae were studied under the stress of Sagittaria sagittifolia extract. The results showed that the growth of A. flos-aquae was significantly inhibited by S. sagittifolia extract. The exopolysaccharide (EPS), total soluble protein, intracellular phosphorus (o-PO4-P) contents and malondialdehyde (MDA) contents in A. flos-aquae cells increased significantly. These results suggested that A. flos-aquae can adapt to stress by increasing its normal metabolic activity. The algal cellular antioxidant enzymes, superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD), were triggered to different degrees when exposed to S. sagittifolia extract. The MDA contents and activities of SOD, CAT and POD in algal cells suggested that oxidative damage induced by S. sagittifolia extract via the oxidation of ROS (O2·-) might be an important factor responsible for the inhibition of the growth of A. flos-aquae. In addition, SOD may be an important site for the inhibition of S. sagittifolia extract on A. flos-aquae cells. These results indicate that S. sagittifolia may be a good candidate for controlling A. flos-aquae blooms.
journal_name
Bull Environ Contam Toxicoljournal_title
Bulletin of environmental contamination and toxicologyauthors
Zhang SH,Xu PY,Chang JJdoi
10.1007/s00128-016-1948-7subject
Has Abstractpub_date
2016-12-01 00:00:00pages
870-875issue
6eissn
0007-4861issn
1432-0800pii
10.1007/s00128-016-1948-7journal_volume
97pub_type
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