Temperature dependence of superoxide dismutase activity in plankton

Alexander Perelman; Zvy Dubinsky; Rosa Martínez

doi:10.1016/j.jembe.2006.02.009

Temperature dependence of superoxide dismutase activity in plankton

Alexander Perelman, Zvy Dubinsky, Rosa Martínez

The Mina and Everard Goodman Faculty of Life Sciences

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

19 Scopus citations

Abstract

The effect of temperature (from 1 to 37 °C) on in vitro effective superoxide dismutase (SOD) activity of several organisms was investigated and compared. Antarctic plankton, cultures of the alga Nannochloropsis sp., and the cyanobacterium Synechococcus strain WH 7803, and pure bovine erythrocyte SOD was studied. It was found that in all cases SOD activity increased with decreasing temperature within the temperature range assayed, in the Polar as well as the temperate plankton cells. This behavior of SOD is counterintuitive in terms of our experience when looking at enzyme activity or any other chemical reaction. We suggest a theoretical explanation for this apparently odd behavior. The advantage of such behavior is that the same amount of antioxidant will act better under low temperatures when reactive oxygen species (ROS) increase. Moreover, this protective process would act in vivo at a faster pace than the ex novo enzyme synthesis.

Original language	English
Pages (from-to)	229-235
Number of pages	7
Journal	Journal of Experimental Marine Biology and Ecology
Volume	334
Issue number	2
DOIs	https://doi.org/10.1016/j.jembe.2006.02.009
State	Published - 11 Jul 2006

Bibliographical note

Funding Information:
Work on Antarctic plankton was funded by Spanish Interministerial Comission for Science and Technology (CICYT) cruise HE047 (E-DOVETAIL). This research is part of A. P.'s Ph.D. thesis at Bar-Ilan University. We are grateful to the crew of R/V Hesperides and to our scientific colleagues on board. We acknowledge the improvements to the manuscript contributed to by two anonymous referees. [SS]

Funding

Work on Antarctic plankton was funded by Spanish Interministerial Comission for Science and Technology (CICYT) cruise HE047 (E-DOVETAIL). This research is part of A. P.'s Ph.D. thesis at Bar-Ilan University. We are grateful to the crew of R/V Hesperides and to our scientific colleagues on board. We acknowledge the improvements to the manuscript contributed to by two anonymous referees. [SS]

Funders	Funder number
E-DOVETAIL
Spanish Interministerial Comission for Science and Technology
Comisión Interministerial de Ciencia y Tecnología	HE047

Keywords

Antarctic Ocean
Enzyme activity
Oxygen radicals
Phytoplankton
Plankton
Superoxide dismutase
Temperature effect

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10.1016/j.jembe.2006.02.009

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title = "Temperature dependence of superoxide dismutase activity in plankton",

abstract = "The effect of temperature (from 1 to 37 °C) on in vitro effective superoxide dismutase (SOD) activity of several organisms was investigated and compared. Antarctic plankton, cultures of the alga Nannochloropsis sp., and the cyanobacterium Synechococcus strain WH 7803, and pure bovine erythrocyte SOD was studied. It was found that in all cases SOD activity increased with decreasing temperature within the temperature range assayed, in the Polar as well as the temperate plankton cells. This behavior of SOD is counterintuitive in terms of our experience when looking at enzyme activity or any other chemical reaction. We suggest a theoretical explanation for this apparently odd behavior. The advantage of such behavior is that the same amount of antioxidant will act better under low temperatures when reactive oxygen species (ROS) increase. Moreover, this protective process would act in vivo at a faster pace than the ex novo enzyme synthesis.",

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note = "Funding Information: Work on Antarctic plankton was funded by Spanish Interministerial Comission for Science and Technology (CICYT) cruise HE047 (E-DOVETAIL). This research is part of A. P.'s Ph.D. thesis at Bar-Ilan University. We are grateful to the crew of R/V Hesperides and to our scientific colleagues on board. We acknowledge the improvements to the manuscript contributed to by two anonymous referees. [SS] ",

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AU - Dubinsky, Zvy

AU - Martínez, Rosa

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PY - 2006/7/11

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N2 - The effect of temperature (from 1 to 37 °C) on in vitro effective superoxide dismutase (SOD) activity of several organisms was investigated and compared. Antarctic plankton, cultures of the alga Nannochloropsis sp., and the cyanobacterium Synechococcus strain WH 7803, and pure bovine erythrocyte SOD was studied. It was found that in all cases SOD activity increased with decreasing temperature within the temperature range assayed, in the Polar as well as the temperate plankton cells. This behavior of SOD is counterintuitive in terms of our experience when looking at enzyme activity or any other chemical reaction. We suggest a theoretical explanation for this apparently odd behavior. The advantage of such behavior is that the same amount of antioxidant will act better under low temperatures when reactive oxygen species (ROS) increase. Moreover, this protective process would act in vivo at a faster pace than the ex novo enzyme synthesis.

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KW - Oxygen radicals

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Temperature dependence of superoxide dismutase activity in plankton

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