Growth pattern and  13C 12C isotope fractionation of Cyanidium caldarium and hot spring algal mats

J. Seckbach; I. R. Kaplan

doi:10.1016/0009-2541(73)90086-7

Growth pattern and ¹³C¹²C isotope fractionation of Cyanidium caldarium and hot spring algal mats

J. Seckbach^*, I. R. Kaplan

^*Corresponding author for this work

Rothberg International School

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

A study was undertaken with the thermophilic green alga Cyanidium caldarium which grows optimally at low pH and high concentrations of CO₂. Carbon-isotope fractionation was not found to be a simple linear function of temperature. Maximum enrichment of ¹²C in cellular material occurred under optimum growth conditions (at approximately pH 2 and at temperatures between 40-50°C in a CO₂ atmosphere). A maximum measured fractionation of -24‰ may account for low values (δ ¹³C < -30‰ _PDB) in Precambrian kerogen presumably derived from algal mats.

Original language	English
Pages (from-to)	161-169
Number of pages	9
Journal	Chemical Geology
Volume	12
Issue number	3
DOIs	https://doi.org/10.1016/0009-2541(73)90086-7
State	Published - Nov 1973

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abstract = "A study was undertaken with the thermophilic green alga Cyanidium caldarium which grows optimally at low pH and high concentrations of CO2. Carbon-isotope fractionation was not found to be a simple linear function of temperature. Maximum enrichment of 12C in cellular material occurred under optimum growth conditions (at approximately pH 2 and at temperatures between 40-50°C in a CO2 atmosphere). A maximum measured fractionation of -24‰ may account for low values (δ 13C < -30‰ PDB) in Precambrian kerogen presumably derived from algal mats.",

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AU - Kaplan, I. R.

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AB - A study was undertaken with the thermophilic green alga Cyanidium caldarium which grows optimally at low pH and high concentrations of CO2. Carbon-isotope fractionation was not found to be a simple linear function of temperature. Maximum enrichment of 12C in cellular material occurred under optimum growth conditions (at approximately pH 2 and at temperatures between 40-50°C in a CO2 atmosphere). A maximum measured fractionation of -24‰ may account for low values (δ 13C < -30‰ PDB) in Precambrian kerogen presumably derived from algal mats.

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Growth pattern and ¹³C¹²C isotope fractionation of Cyanidium caldarium and hot spring algal mats

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