Study On The Effect Laws Of NO On The Growth Of Prorocentrum Micans And Prorocentrum Donghaiense

Nitric oxide (NO) is affirmed the smallest and gaseous molecular biology messenger up to present. It exists in animal, plant and microorganism and has many physiological functions. The study of NO on biology has become a hotspot of bionomy. NO is intiuled as"Molecular of year"in 1992 by Science. The Nobel Prize of Physiology &Medicine in 1998 is awarded jointly to Robert F. Furchgott, Louis J. Ignarro and Ferid Murad for their discoveries concerning nitric oxide as a signaling molecule in the cardiovascular to regulate blood pressure and blood stream, and established a new concept of biological system signal conversion principle: A gas signal produced by one cell and penetrate cellular membrane to regulate the function of another cell. However, the research about NO in oceanological field especially in phytoplankton is rarely reported except a few reports by our laboratory. Therefore, this paper chooses two marine algae namely Prorocentrum micans and Prorocentrum donghaiense to discuss the laws of the NO effect on the growth of marine phytoplankton from chemical point of view. During the cultivation process, nitric oxide of different concentrations is added only one time or twice a day or the culture media are changed. This paper also discusses the variation of nitric oxide in Prorocentrum micans and Prorocentrum donghaiense solution through ISO-NOPMC NO microsensors. The conclusions are as follows:(1) These two algae are obviously promoted or inhibited when nitric oxide of different concentrations is added only one time or twice a day during the cultivation process.(2) Different media can influence the growth of Prorocentrum micans. But in different media, the effect laws of NO on the growth of alga are identical. The optimum NO concentration is 10-9mol/L in all media.(3) The NO effect on the growth of microalgae is kurtosis, which is consistent with...