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Appl Microbiol Biotechnol

Title:		Inhibition of Scenedesmus quadricauda on Microcystis flos-aquae
Author(s):		Qiu Y; Wang Z; Liu F; Liu J; Tan K; Ji R;
Address:		"School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China. gdutwzhrg@163.com. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China. whjunxia@163.com"
Journal Title:		Appl Microbiol Biotechnol
Year:		2019
Volume:		20190521
Issue:		14
Page Number:		5907 - 5916
DOI:		10.1007/s00253-019-09809-9
ISSN/ISBN:		1432-0614 (Electronic) 0175-7598 (Linking)
Abstract:		"Allelopathy by hydrophytes can be utilized to control algal blooms. This study was conducted to investigate the allelopathic effect (inhibition) of Scenedesmus quadricauda on Microcystis flos-aquae. When M. flos-aquae was co-cultured with S. quadricauda, the secretion of high-MW biopolymer by M. flos-aquae was inhibited by S. quadricauda. We further identified the allelochemicals and found that 4-tert-butylpyrocatechol (TBC) was the main active ingredient that could inhibit the growth of M. flos-aquae. When the dose of TBC was larger than 0.2 mg/L, almost all of the M. flos-aquae died. Additionally, TBC was found to suppress the growth of M. flos-aquae by disturbing the synthesis and secretion of proteins and polysaccharides and harming the chlorophyll to affect the light harvesting of algal cells. Therefore, TBC has the potential for use as a potential and promising algaecide to restrain the biomass of M. flos-aquae"
Keywords:		Catechols/pharmacology Chlorophyll/metabolism Coculture Techniques Eutrophication/drug effects Herbicides/pharmacology Microcystis/*drug effects/*growth & development Pheromones/*pharmacology Scenedesmus/*physiology Superoxide Dismutase Allelochemicals Al;
Notes:		"MedlineQiu, Yongting Wang, Zhihong Liu, Feng Liu, Junxia Tan, Kaiting Ji, Ruibo eng 51308131/National Natural Science Foundation of China/ 51708130/National Natural Science Foundation of China/ Germany 2019/05/23 Appl Microbiol Biotechnol. 2019 Jul; 103(14):5907-5916. doi: 10.1007/s00253-019-09809-9. Epub 2019 May 21"