PMID- 28349870 OWN - NLM STAT- MEDLINE DCOM- 20170719 LR - 20181202 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 141 DP - 2017 Jul TI - Improvement of cyanobacterial-killing biologically derived substances (BDSs) using an ecologically safe and cost-effective naphthoquinone derivative. PG - 188-198 LID - S0147-6513(17)30069-6 [pii] LID - 10.1016/j.ecoenv.2017.02.006 [doi] AB - In previous studies, naphthoquinone (NQ) compounds have been shown to be effective, selective, and ecologically safe algicides for controlling harmful algal blooming species (HABs) or winter bloom species, such as Stephanodiscus hantzschii. However, there are no reports on NQ-based algicides for use with cyanobacterial blooming species. In this study, we developed 31 NQ compounds to investigate algicides for mitigating cyanobacterial blooms. In addition, to better apply these compounds in the field, we reduced the number of production steps to develop a cost-effective algicide. In preliminary testing, we screened NQ compounds that showed the best algicidal activity on target cyanobacteria, including Aphanizomenon, Dolichospermum, Microcystis, Oscillatoria, and Nostoc species. The compound NQ 2-0 showed the highest algicidal activity (90%) at a low concentration (>/=1muM) on target algae. These were very limiting algicidal effects of 1microM NQ 2-0 observed against non-target algae, such as diatoms (Stephanodiscus hantzschii, Cyclotella meneghiniana, Synedra acus, and Aulacoseira granulata) or green algae (Cosmarium bioculatum and Scenedesmus quadricauda), and the effect did not exceed 15-25% (except against S. quadricauda). NQ 2-0 (1muM) showed no eco-toxicity, as represented by the survival rates of Pseudokirchneriella subcapitata (100%), Daphnia magna (100%), and Danio rerio (100%). Additionally, a chronic eco-toxicity assessment showed no toxicity toward the survival, growth or reproduction of D. magna. Moreover, NQ 2-0 quickly dissipated from field water samples and had a half-life of approximately 3.2 days. These results suggest that NQ 2-0 could be a selective and ecologically safe algicide to mitigate harmful cyanobacterial blooms. CI - Copyright (c) 2017. Published by Elsevier Inc. FAU - Joo, Jae-Hyoung AU - Joo JH AD - Department of Life Science, Hanyang University, Seoul 04763, South Korea. FAU - Wang, Pengbin AU - Wang P AD - Department of Life Science, Hanyang University, Seoul 04763, South Korea. FAU - Park, Bum Soo AU - Park BS AD - Department of Life Science, Hanyang University, Seoul 04763, South Korea. FAU - Byun, Jeong-Hwan AU - Byun JH AD - Department of Life Science, Hanyang University, Seoul 04763, South Korea. FAU - Choi, Hye Jeong AU - Choi HJ AD - Department of Life Science, Hanyang University, Seoul 04763, South Korea. FAU - Kim, Seong Hun AU - Kim SH AD - Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, South Korea. Electronic address: kimsh@hanyang.ac.kr. FAU - Han, Myung-Soo AU - Han MS AD - Department of Life Science, Hanyang University, Seoul 04763, South Korea; Research Institute for Natural Sciences, Hanyang University, Seoul 04763, South Korea. Electronic address: hanms@hanyang.ac.kr. LA - eng PT - Journal Article DEP - 20170327 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - 0 (Herbicides) RN - 0 (Naphthoquinones) SB - IM MH - Animals MH - Chlorophyta/drug effects/growth & development MH - Cyanobacteria/*drug effects/growth & development MH - Daphnia/drug effects/growth & development MH - Diatoms/drug effects/growth & development MH - Ecology MH - Half-Life MH - Harmful Algal Bloom/*drug effects MH - Herbicides/chemistry/*pharmacology/toxicity MH - Naphthoquinones/chemistry/*pharmacology/toxicity MH - Seasons MH - Time Factors MH - Toxicity Tests, Acute MH - Toxicity Tests, Chronic OTO - NOTNLM OT - Algicide OT - Eco-friendly mitigation OT - Harmful cyanobacteria blooms OT - Naphthoquinone derivatives EDAT- 2017/03/30 06:00 MHDA- 2017/07/20 06:00 CRDT- 2017/03/29 06:00 PHST- 2016/07/25 00:00 [received] PHST- 2017/01/06 00:00 [revised] PHST- 2017/02/06 00:00 [accepted] PHST- 2017/03/30 06:00 [pubmed] PHST- 2017/07/20 06:00 [medline] PHST- 2017/03/29 06:00 [entrez] AID - S0147-6513(17)30069-6 [pii] AID - 10.1016/j.ecoenv.2017.02.006 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2017 Jul;141:188-198. doi: 10.1016/j.ecoenv.2017.02.006. Epub 2017 Mar 27.