ISSN:
1432-0991
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract Both high pH and cell senescence are believed to lead to the production of toxic extracellular metabolites in freshwater microalgae. However, there was no evidence for allelopathic suppression of photosynthesis when filtrates of either of two marine microalgae,Phaeodactylum tricornutum andDunaliella tertiolecta, were mixed with whole cultures of the other species. This was true even when filtrate ofP. tricornutum sample was derived from a culture at high pH or from one in various stages of senescence. It is believed that the major factor leading to the dominance ofP. tricornutum in intensive outdoor cultures is the unique ability of this alga to tolerate pH levels above 9.5, not the allelopathic inhibition of competing species.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01566876
