@article{(Open Science Index):https://publications.waset.org/pdf/4690,
	  title     = {Effects of Allelochemical Gramine on Metabolic Activity and Ultrastructure of Cyanobacterium Microcystis aeruginosa},
	  author    = {Y. Hong and  H. Y. Hu and  A. Sakoda and  M. Sagehashi},
	  country	= {},
	  institution	= {},
	  abstract     = {In this study, inhibition of Microcystis aeruginosa by
antialgal alleochemical gramine, was studied by analyzing algal
metabolic activity (represented by esterase and total dehydrogenase
activities) and cell ultrastructure (showing morphological and
ultrastructure alterations using transmission electron microscopy and
DNA ladder analysis). After gramine exposure, esterase and total
dehydrogenase activities were increased firstly but decreased later. In
contrast with the controls, the cells exposed to gramine showed
apparent ultrastructure alterations with thylakoids in breakage,
phycobilins in decrease, lipid and cyanophycin granules abundant
firstly but dissolved afterwards, DNA in fragementation. The
occurrence of increase of metabolic activity and specific granules
reflected that the resistance of cellular response to gramine was
initiated. DNA fragementation associated with the increase of
metabolic activity and specific granules hinted that gramine caused M.
aeruginosa cells to initiate some morphotype of programmed cell
death.},
	    journal   = {International Journal of Environmental and Ecological Engineering},
	  volume    = {4},
	  number    = {11},
	  year      = {2010},
	  pages     = {574 - 578},
	  ee        = {https://publications.waset.org/pdf/4690},
	  url   	= {https://publications.waset.org/vol/47},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 47, 2010},
	}