EurekaMag.com logo
+ Site Statistics
References:
53,623,987
Abstracts:
29,492,080
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Differential carbon monoxide sensitivity of cytochrome C oxidase in the leaves of c(3) and c(4) plants



Differential carbon monoxide sensitivity of cytochrome C oxidase in the leaves of c(3) and c(4) plants



Plant Physiology 98(3): 984-987



CO sensitivity of cytochrome a(3) in the leaves of a number of C(3) and C(4) plants was monitored by the nitrate reductase assay under differing CO to O(2) ratios. All the C(3) plants were relatively insensitive to CO and required a high CO to O(2) ratio of 40 to promote significant nitrate reductase activity. However, when treated with 2 millimolar 2,4-dinitrophenol, these leaves readily responded to CO even at low CO to O(2) ratios of 10 or less. On the other hand, the leaves of all C(4) plants tested, belonging to the three subgroups, were highly sensitive to CO, even at CO to O(2) ratios of 5 or less. In these leaves, the uncoupler was without any effect, probably because the mitochondria, either from mesophyll or bundle sheath cells or both, lacked tight respiratory control.

(PDF same-day service: $19.90)

Accession: 002072527

Download citation: RISBibTeXText

PMID: 16668775

DOI: 10.1104/pp.98.3.984



Related references

Differential carbon monoxide sensitivity of cytochrome-oxidase in the leaves of tall and dwarf wheat cultivars. Journal of Plant Biochemistry & Biotechnology 7(1): 29-34, 1998

Cytochrome oxidase sensitivity to carbon monoxide in leaves of various tall and dwarf wheat cultivars and their crosses. Plant cell reports 20(12): 1188-1190, 2002

Mitochondrial complex I impairment and differential carbon monoxide sensitivity of cytochrome c oxidase in wild type and CMS II mutants of Nicotiana sylvestris. Indian Journal of Biochemistry and Biophysics 45(2): 126-129, 2008

Mitochondrial complex I impairment and differential carbon monoxide sensitivity of cytochrome c oxidase in wild type and CMS II mutants of Nicotiana sylvestris. Indian Journal of Biochemistry & Biophysics 45(2): 126-129, 2010

Carbon monoxide sensitivity of cytochrome oxidase in wheat leaves in relation to dwarfing genes (Rht) in wheat cultivars. Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 72(6): 735-736, 1986

Carbon monoxide sensitivity of cytochrome oxidase in wheat triticum aestivum leaves in relation to dwarfing genes rht in wheat cultivars. Theoretical & Applied Genetics 72(6): 735-736, 1986

Carbon monoxide sensitivity of cytochrome c oxidase of rice oryza sativa l. cultivars. Indian Journal of Experimental Biology 30(5): 421-423, 1992

Carbon monoxide sensitivity of cytochrome c oxidase in male sterile seedlings of sorghum. Phytochemistry (Oxford) 27(11): 3367-3372, 1988

Carbon monoxide sensitivity of cytochrome c oxidase in male sterile seedlings of pearl millet. Phytochemistry (Oxford) 27(7): 1955-1958, 1988

Time resolved resonance raman studies on a photolabile intermediate formed after photodissociation of carbon monoxide from reduced carbon monoxide cytochrome c oxidase. Biophysical Journal 59(2 PART 2): 472A, 1991

The reactions between the carbon monoxide complex of cytochrome c oxidase and oxygen an investigation of electron transfer between the functional units of cytochrome c oxidase. Chemica Scripta 28A: 57-62, 1988

Spectroelectrochemical study of the cytochrome a site in carbon monoxide inhibited cytochrome c oxidase. Biochemistry 25(1): 161-167, 1986

Characterization of two low Em forms of cytochrome a3 and their carbon monoxide complexes in mammalian cytochrome c oxidase. Biophysical Journal 57(6): 1125-1140, 1990

Evidence for a low spin cytochrome a 3 transient following photodissociation of carbon monoxide cytochrome oxidase. Biophysical Journal 57(2 PART 2): 558A, 1990

Proton linkage of cytochrome a oxidoreduction in carbon monoxide-treated cytochrome c oxidase. Biochimica et Biophysica Acta 1412(2): 184-189, June 30, 1999