| Title: | Effects of phosphorus sources on volatile organic compound emissions from Microcystis flos-aquae and their toxic effects on Chlamydomonas reinhardtii |
| Author(s): | Zuo Z; Yang Y; Xu Q; Yang W; Zhao J; Zhou L; |
| Address: | "School of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China. zuozhaojiang@126.com. Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA. zuozhaojiang@126.com. College of Agriculture and Food Science, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China. School of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China" |
| DOI: | 10.1007/s10653-017-0055-y |
| ISSN/ISBN: | 1573-2983 (Electronic) 0269-4042 (Linking) |
| Abstract: | "There is diverse phosphorus (P) in eutrophicated waters, but it is considered as a crucial nutrient for cyanobacteria growth due to its easy precipitation as insoluble salts. To uncover the effects of complex P nutrients on the emission of volatile organic compounds (VOCs) from cyanobacteria and their toxic effects on other algae, the VOCs from Microcystis flos-aquae supplied with different types and amount of P nutrients were analyzed, and the effects of VOCs and their two main compounds on Chlamydomonas reinhardtii growth were investigated. When M. flos-aquae cells were supplied with K(2)HPO(4), sodium pyrophosphate and sodium hexametaphosphate as the sole P source, 27, 23 and 29 compounds were found, respectively, including furans, sulfocompounds, terpenoids, benzenes, aldehydes, hydrocarbons and esters. With K(2)HPO(4) as the sole P source, the VOC emission increased with reducing P amount, and the maximum emission was found under Non-P condition. In the treatments of M. flos-aquae VOCs under Non-P condition and two main terpenoids (eucalyptol and limonene) in the VOCs, remarkable decreases were found in C. reinhardtii cell growth, photosynthetic pigment content and photosynthetic abilities. Therefore, we deduce that multiple P nutrients in eutrophicated waters induce different VOC emissions from cyanobacteria, and P amount reduction caused by natural precipitation and algal massive growth results in more VOC emissions. These VOCs play toxic roles in cyanobacteria becoming dominant species, and eucalyptol and limonene are two toxic agents" |
| Keywords: | Chlamydomonas reinhardtii/*drug effects/growth & development/metabolism Cyclohexanols/pharmacology Cyclohexenes/pharmacology Eucalyptol Eutrophication Limonene Microcystis/*metabolism Monoterpenes/pharmacology Phosphorus/*chemistry Photosynthesis/drug eff; |
| Notes: | "MedlineZuo, Zhaojiang Yang, Youyou Xu, Qinghuan Yang, Wangting Zhao, Jingxian Zhou, Lv eng Netherlands 2017/12/22 Environ Geochem Health. 2018 Aug; 40(4):1283-1298. doi: 10.1007/s10653-017-0055-y. Epub 2017 Dec 20" |
