« Previous AbstractComparison of models for describing measured VOC emissions from wood-based panels under dynamic chamber test condition    Next Abstract"Identification and tissue distribution of odorant binding protein genes in the beet armyworm, Spodoptera exigua" »

Huan Jing Ke Xue

Title:		[Allelopathic influence of Myriophyllum spicatum on the photosynthetic efficiency of Microcystis aeruginosa]
Author(s):		Zhu JY; Liu BY; Wang J; Gao YN; Ge FJ; Liang W; Zhang LP; Wu ZB;
Address:		"State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China"
Journal Title:		Huan Jing Ke Xue
Year:		2011
Volume:		32
Issue:		10
Page Number:		2904 - 2908
DOI:
ISSN/ISBN:		0250-3301 (Print) 0250-3301 (Linking)
Abstract:		"The allelopathic influence of Myriophyllum spicatum on chlorophyll content and chlorophyll fluorescence parameters of Microcystis aeruginosa was studied in coexistence condition. Chlorophyll fluorescence parameters included q(N) (non-photochemical quenching), Y II (effective quantum yield), F(v)/F(m) (maximum quantum yield), F'(v)/F'(m) (effective quantum yield of photosystem II photochemistry) and ETR (electron transport rate). During the three days under coexistence condition, chlorophyll content and chlorophyll fluorescence parameters of M. aeruginosa were affected by M. spicatum and presented different sensitivities. Chlorophyll content of M. aeruginosa was significantly inhibited by 20.80% on the second day at 10.0 g/L of M. spicatum (P < 0.05). However, chlorophyll fluorescence parameters of M. aeruginosa decreased earlier and rapider than chlorophyll content. On the first day, q(N) and Y II of M. aeruginosa were significantly inhibited by 15.59% and 13.00% at 5.0 g/L of M. spicatum (P < 0.05), and F(v)/F(m) and F'(v) /F'(m) were declined by 15.87% and 12.07% at 10.0 g/L (P < 0.05), respectively. On the third day, ETR and three parameters based on ETR were affected at all levels of M. spicatum (P < 0.05). The inhibition effects on the photosynthetic activity of M. aeruginosa might be considered as one of the target sites of M. spicatum and chlorophyll fluorescence parameters were more sensitive parameters than chlorophyll content, especially q(n)"
Keywords:		Chlorophyll/metabolism Fluorescence Magnoliopsida/metabolism/*physiology Microcystis/*drug effects Pheromones/biosynthesis/*pharmacology Photosynthesis/*drug effects Photosystem II Protein Complex/drug effects/physiology;
Notes:		"MedlineZhu, Jun-Ying Liu, Bi-Yun Wang, Jing Gao, Yun-Ni Ge, Fang-Jie Liang, Wei Zhang, Li-Ping Wu, Zhen-Bin chi Research Support, Non-U.S. Gov't China 2012/01/28 Huan Jing Ke Xue. 2011 Oct; 32(10):2904-8"