Abstract
Monocolonal cultures of R. gibba were exposed to three levels of nitrate-nitrogen. Nutrient-diffusing substrates were used in a lake environment to create nine microhabitats of varying N and P ratios for natural populations of R. gibba and E. turgida. The number of endosymbionts per diatom increased as ambient N became limiting; mean endosymbiont volume increased as N increased. The mean endosymbiont surface area:volume ratio decreased with inceasing N. Total endosymbiont volume per diatom (the product of the number of endosymbionts per diatom and their individual biovolumes) did not have a simple response to increasing N. Phosphorous limitation uncoupled the relationship between endosymbiont load and N. Flexibility of the endosymbiont load can reduce the metabolic cost to the diatom if the endosymbionts are dependent on the diatom for a resource. -from Authors
| Original language | English (US) |
|---|---|
| Pages (from-to) | 773-777 |
| Number of pages | 5 |
| Journal | Journal of Phycology |
| Volume | 28 |
| Issue number | 6 |
| State | Published - 1992 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Aquatic Science
- Plant Science
Cite this
Effects of nitrogen and phosphorus on the endosymbiont load of Rhopalodia gibba and Epithemia turgida (Bacillariophyceae). / Deyoe, H. R.; Lowe, R. L.; Marks, Jane C.
In: Journal of Phycology, Vol. 28, No. 6, 1992, p. 773-777.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of nitrogen and phosphorus on the endosymbiont load of Rhopalodia gibba and Epithemia turgida (Bacillariophyceae)
AU - Deyoe, H. R.
AU - Lowe, R. L.
AU - Marks, Jane C
PY - 1992
Y1 - 1992
N2 - Monocolonal cultures of R. gibba were exposed to three levels of nitrate-nitrogen. Nutrient-diffusing substrates were used in a lake environment to create nine microhabitats of varying N and P ratios for natural populations of R. gibba and E. turgida. The number of endosymbionts per diatom increased as ambient N became limiting; mean endosymbiont volume increased as N increased. The mean endosymbiont surface area:volume ratio decreased with inceasing N. Total endosymbiont volume per diatom (the product of the number of endosymbionts per diatom and their individual biovolumes) did not have a simple response to increasing N. Phosphorous limitation uncoupled the relationship between endosymbiont load and N. Flexibility of the endosymbiont load can reduce the metabolic cost to the diatom if the endosymbionts are dependent on the diatom for a resource. -from Authors
AB - Monocolonal cultures of R. gibba were exposed to three levels of nitrate-nitrogen. Nutrient-diffusing substrates were used in a lake environment to create nine microhabitats of varying N and P ratios for natural populations of R. gibba and E. turgida. The number of endosymbionts per diatom increased as ambient N became limiting; mean endosymbiont volume increased as N increased. The mean endosymbiont surface area:volume ratio decreased with inceasing N. Total endosymbiont volume per diatom (the product of the number of endosymbionts per diatom and their individual biovolumes) did not have a simple response to increasing N. Phosphorous limitation uncoupled the relationship between endosymbiont load and N. Flexibility of the endosymbiont load can reduce the metabolic cost to the diatom if the endosymbionts are dependent on the diatom for a resource. -from Authors
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UR - http://www.scopus.com/inward/citedby.url?scp=0027011720&partnerID=8YFLogxK
M3 - Article
VL - 28
SP - 773
EP - 777
JO - Journal of Phycology
JF - Journal of Phycology
SN - 0022-3646
IS - 6
ER -