The chloroplast Ndh complex mediates the dark reduction of the plastoquinone pool in response to heat stress in tobacco leaves

L.A. Sazanov, P. Burrows, P. Nixon, FEBS Letters 429 (1998) 115–118.

Download
No fulltext has been uploaded. References only!

Journal Article | Published
Author
Sazanov, Leonid AIST Austria ; Burrows, Paul A; Nixon, Peter J
Abstract
We have examined the effects of heat stress on electron transfer in the thylakoid membrane of an engineered plastid ndh deletion mutant, Δ1, incapable of performing the Ndh-mediated reduction of the plastoquinone pool in the chloroplast. Upon heat stress in the dark, the rate of PSII- independent reduction of PSI after subsequent illumination by far-red light is dramatically enhanced in both Δ1 and a wild-type control plant (WT). In contrast, in the dark, only the WT shows an increase in the reduction state of the plastoquinone pool. We conclude that the heat stress-induced reduction of the intersystem electron transport chain can be mediated by Ndh- independent pathways in the light but that in the dark the dominant pathway for reduction of the plastoquinone pool is catalysed by the Ndh complex. Our results therefore demonstrate a functional role for the Ndh complex in the dark.
Publishing Year
Date Published
1998-06-05
Journal Title
FEBS Letters
Acknowledgement
This work was funded by the BBSRC
Volume
429
Issue
1
Page
115 - 118
IST-REx-ID

Cite this

Sazanov LA, Burrows P, Nixon P. The chloroplast Ndh complex mediates the dark reduction of the plastoquinone pool in response to heat stress in tobacco leaves. FEBS Letters. 1998;429(1):115-118. doi:10.1016/S0014-5793(98)00573-0
Sazanov, L. A., Burrows, P., & Nixon, P. (1998). The chloroplast Ndh complex mediates the dark reduction of the plastoquinone pool in response to heat stress in tobacco leaves. FEBS Letters, 429(1), 115–118. https://doi.org/10.1016/S0014-5793(98)00573-0
Sazanov, Leonid A, Paul Burrows, and Peter Nixon. “The Chloroplast Ndh Complex Mediates the Dark Reduction of the Plastoquinone Pool in Response to Heat Stress in Tobacco Leaves.” FEBS Letters 429, no. 1 (1998): 115–18. https://doi.org/10.1016/S0014-5793(98)00573-0.
L. A. Sazanov, P. Burrows, and P. Nixon, “The chloroplast Ndh complex mediates the dark reduction of the plastoquinone pool in response to heat stress in tobacco leaves,” FEBS Letters, vol. 429, no. 1, pp. 115–118, 1998.
Sazanov LA, Burrows P, Nixon P. 1998. The chloroplast Ndh complex mediates the dark reduction of the plastoquinone pool in response to heat stress in tobacco leaves. FEBS Letters. 429(1), 115–118.
Sazanov, Leonid A., et al. “The Chloroplast Ndh Complex Mediates the Dark Reduction of the Plastoquinone Pool in Response to Heat Stress in Tobacco Leaves.” FEBS Letters, vol. 429, no. 1, Elsevier, 1998, pp. 115–18, doi:10.1016/S0014-5793(98)00573-0.

Export

Marked Publications

Open Data IST Research Explorer

Search this title in

Google Scholar