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Cell division periodicity and the nitrate environment of a marine diatom
Author(s) -
Yoder James A.,
Martin James,
Nill Andrew
Publication year - 1982
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1982.27.2.0352
Subject(s) - nitrate , diatom , cell division , limiting , division (mathematics) , nutrient , biology , environmental chemistry , chemistry , ecology , cell , biochemistry , mathematics , mechanical engineering , arithmetic , engineering
Cell division periodicity of a marine diatom grown with a 12:12 light/dark cycle was influenced by the manner in which a limiting nutrient (nitrate) was supplied to the external environment of the cell. When nitrate was provided by changing the medium once a day, cell division was periodic, beginning after the nitrate concentration reached the apparent steady state level (about 12 h after the addition). When the same daily ration of nitrate was supplied at 2‐h intervals, periodicity was eliminated in <1 day, and cell division occurred continuously throughout the 24‐h period.