STAGES OF OZONE DAMAGE TO RESPIRATION OF TOBACCO LEAVES

1965 ◽  
Vol 43 (4) ◽  
pp. 419-427 ◽  
Author(s):  
F. D. H. Macdowall
Keyword(s):  
Carbon Monoxide ◽  
Oxidative Phosphorylation ◽  
Cytochrome Oxidase ◽  
Oxidase Activity ◽  
Leaf Respiration ◽  
Tobacco Leaves ◽  
Tobacco Leaf ◽  
Cytochrome Oxidase Activity ◽  
Leaf Tissues ◽  
Two Stages

Two stages of damage were observed in the respiration of tobacco leaf tissues after fumigation with ozone. A damaging dose of ozone initially inhibited the respiration of fumigated leaves and of mitochondria removed from them.Stimulation of leaf respiration occurred later together with visible signs of damage and inhibition of photosynthesis. Mitochondria prepared from such visibly damaged tissue also showed stimulated activity. However, their cytochrome oxidase activity was inhibited and their oxidative phosphorylation was suppressed, like known effects of cyanide and carbon monoxide.

Correlation between blastocyst oxygen consumption and trophoblast cytochrome oxidase reaction at initiation of implantation of delayed mouse blastocysts

Development ◽  
1982 ◽  
Vol 71 (1) ◽  
pp. 75-82
Author(s):  
B. Ove Nilsson ◽  
Claes Magnusson ◽  
Sibylle Widéhn ◽  
Torbjörn Hillensjö
Keyword(s):  
Oxygen Consumption ◽  
Oxidative Phosphorylation ◽  
Cytochrome Oxidase ◽  
Oxidase Activity ◽  
Energy Production ◽  
Cytochrome Oxidase Activity ◽  
Uterine Secretion ◽  
Oxidase Reaction

Delayed blastocysts had an oxygen consumption of 0·24 nl/h, while only 4 h after an oestrogen injection the respiration had increased nearly two fold, remaining at this level both 8 and 18 h after activation for implantation. The mitochondria of delayed blastocysts exhibited no positive cytochrome oxidase reaction, neither in the trophoblast nor in the embryoblasts. A few mitochondria at 8 h and most of those of blastocysts activated for 18 h were positive. It is suggested that the activation of blastocysts for implantation is initiated by a surge of substrates for glycolysis into the uterine secretion causing an increased energy production by glycolysis which in turn makes possible an increase of the cytochrome oxidase activity of the mitochondria thus getting oxidative phosphorylation into action.

scholarly journals Myocardial cytochrome oxidase activity is decreased following carbon monoxide exposure

2007 ◽  
Vol 1772 (9) ◽  
pp. 1112-1116 ◽  
Author(s):  
Kelechi N. Iheagwara ◽  
Stephen R. Thom ◽  
Clifford S. Deutschman ◽  
Richard J. Levy
Keyword(s):  
Carbon Monoxide ◽  
Cytochrome Oxidase ◽  
Oxidase Activity ◽  
Cytochrome Oxidase Activity

Cytochrome Oxidase Activity at The Hepatic Parenchyma Different Periods of Ischemia and Obstructive Jaundice

2019 ◽  
Vol 9 (5) ◽  
pp. p8944
Author(s):  
Askarov Tahir Askarovich ◽  
Akhmedov Mirhalil Dzhalilovich ◽  
Fayziev Yokub Nishanovic ◽  
Ashurmetov Ahmadjon Makhamadjonovich ◽  
Dalimov Kenjabek Sabutaevich ◽  
...  
Keyword(s):  
Obstructive Jaundice ◽  
Cytochrome Oxidase ◽  
Oxidase Activity ◽  
Hepatic Parenchyma ◽  
Cytochrome Oxidase Activity

Histochemical assessment of cytochrome oxidase activity for monitoring ischemic muscle injury

1985 ◽  
Vol 88 (2) ◽  
pp. 265-276 ◽  
Author(s):  
Richard M. Millis ◽  
Theodore A. Stephens ◽  
Gerard Harris ◽  
Columbus Anonye ◽  
Michael Reynolds
Keyword(s):  
Cytochrome Oxidase ◽  
Oxidase Activity ◽  
Muscle Injury ◽  
Cytochrome Oxidase Activity ◽  
Ischemic Muscle
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