Aging Effects in Chlorella Cultures

Winokur, Morris

doi:10.1002/j.1537-2197.1949.tb05262.x

Cited by 12 publications

(2 citation statements)

References 28 publications

(21 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 (culture 12 days old). Similar observations on the loss of photosynthetic activity as cultures age have been recorded by Pratt (1943) and Winokur (1948). On the other hand, there was an increase in the absolute and relative amount of extracellular organic 14 C as the culture proceeded from the exponential to the stationary phase.…”

Section: Combined Effect Of Total Carbon Dioxide (2 Co 2 ) Concentratsupporting

confidence: 84%

Studies on the Factors Affecting the Release of Organic Matter BySkeletonema Costatum(Greville) Cleve in Culture

Ignatiades

Fogg

1973

J. Mar. Biol. Ass.

View full text Add to dashboard Cite

A few studies on the excretion of organic matter by marine phytoplankton in culture have been reported (Guillard & Wangersky, 1958; Wangersky & Guillard, 1960; Stewart, 1963; Hellebust, 1965). Eppley & Sloan (1965) reported extensive excretion in Skeletonema costatum (Greville) Cleve cultures as they approached senescence and emphasized that excretion is inversely proportional to the physiological activity of cells. Hellebust (1965) demonstrated the release of high amounts (up to 38% of the carbon assimilated) of organic matter by Sk. costatum cells exposed to low light intensities. It is apparent that more knowledge is needed in order to define the intra- and extracellular factors affecting the excretion.

show abstract