1,274
Views
29
CrossRef citations to date
0
Altmetric
Original Articles

Phytoplankton sterol contents vary with temperature, phosphorus and silicate supply: a study on three freshwater species

, &
Pages 138-145 | Received 14 Sep 2011, Accepted 27 Nov 2011, Published online: 04 May 2012

Figures & data

Fig. 1. Sterol concentrations of S. quadricauda, C. ovata and C. meneghiniana at 10°C and 25°C each at low-P (P–) and high-P supply (P+). Data shown are means and standard deviations. Significant effects of the two-way ANOVA: temperature (T), phosphorus (P), interaction (T × P): °P < 0.1, *P < 0.05, **P < 0.01, ***P < 0.001. Fungisterol (Fung), chondrillasterol (Chon), 22-dihydrochondrillasterol (Dhchon), (epi)brassicasterol (Brass), stigmasterol (Stig), 24-methylenecholesterol (Mchol), 22-dihydrobrassicasterol (Dhbrass).

Fig. 1. Sterol concentrations of S. quadricauda, C. ovata and C. meneghiniana at 10°C and 25°C each at low-P (P–) and high-P supply (P+). Data shown are means and standard deviations. Significant effects of the two-way ANOVA: temperature (T), phosphorus (P), interaction (T × P): °P < 0.1, *P < 0.05, **P < 0.01, ***P < 0.001. Fungisterol (Fung), chondrillasterol (Chon), 22-dihydrochondrillasterol (Dhchon), (epi)brassicasterol (Brass), stigmasterol (Stig), 24-methylenecholesterol (Mchol), 22-dihydrobrassicasterol (Dhbrass).

Fig. 2. Sterol concentrations of S. quadricauda, C. ovata and C. meneghiniana at different phosphorus supply levels. Data shown are means and standard deviations. Different letters indicate significant differences of means (post-hoc test, P < 0.05). Fungisterol (Fung), chondrillasterol (Chon), 22-dihydrochondrillasterol (Dhchon), (epi)brassicasterol (Brass), stigmasterol (Stig), 24-methylenecholesterol (Mchol), 22-dihydrobrassicasterol (Dhbrass).

Fig. 2. Sterol concentrations of S. quadricauda, C. ovata and C. meneghiniana at different phosphorus supply levels. Data shown are means and standard deviations. Different letters indicate significant differences of means (post-hoc test, P < 0.05). Fungisterol (Fung), chondrillasterol (Chon), 22-dihydrochondrillasterol (Dhchon), (epi)brassicasterol (Brass), stigmasterol (Stig), 24-methylenecholesterol (Mchol), 22-dihydrobrassicasterol (Dhbrass).

Fig. 3. Sterol concentration of C. meneghiniana at different silicate supply levels. Data shown are means and standard deviations. Different letters indicate significant differences of means (post-hoc test, P < 0.05). 24-methylenecholesterol (Mchol), 22-dihydrobrassicasterol (Dhbrass).

Fig. 3. Sterol concentration of C. meneghiniana at different silicate supply levels. Data shown are means and standard deviations. Different letters indicate significant differences of means (post-hoc test, P < 0.05). 24-methylenecholesterol (Mchol), 22-dihydrobrassicasterol (Dhbrass).
Supplemental material

Sterol concentrations of Scenedesmus after use of 4 different lipid extraction methods.

Download PDF (237.3 KB)

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.