Estimation of the whole-plant CO2 compensation point of tobacco (Nicotiana tabacum L.)

2005 ◽  
Vol 0 (0) ◽  
pp. 050922094851001-??? ◽  
Author(s):  
Catherine D. Campbell ◽  
Rowan F. Sage ◽  
Ferit Kocacinar ◽  
Danielle A. Way
Keyword(s):  
Nicotiana Tabacum ◽  
Compensation Point ◽  
Co2 Compensation Point ◽  
Whole Plant ◽  
Nicotiana Tabacum L

The influence of red and blue light on the rate of photosynthesis and the CO2 compensation point at various oxygen concentrations

1970 ◽  
Vol 48 (6) ◽  
pp. 1251-1257 ◽  
Author(s):  
N. P. Voskresenskaya ◽  
G. S. Grishina ◽  
S. N. Chmora ◽  
N. M. Poyarkova
Keyword(s):  
Nicotiana Tabacum ◽  
Blue Light ◽  
Photosynthetic Rate ◽  
Prolonged Exposure ◽  
Red Light ◽  
Compensation Point ◽  
Gas Analyzer ◽  
Co2 Compensation Point ◽  
Rate Of Photosynthesis ◽  
Light Inhibition

Apparent photosynthesis of attached leaves of Phaseolus vulgaris, Vicia faba, Pisum sativum, and Nicotiana tabacum at various intensities of blue and red light was measured by infrared CO2 gas analyzer in a closed system. Simultaneously the CO2 compensation point was measured.It was found that light-limited photosynthetic rate in blue light was equal to or more than that in red light. Inhibition of photosynthesis, which sometimes occurred at light-saturated intensities of blue light, could be avoided by addition of red light, prolonged exposure of the plants to blue light, or by lowering the O2 concentration. Accordingly, the increase of photosynthetic rate due to change of O2 concentration from 21 to 3% O2 is higher in blue light only when photosynthesis is inhibited by blue light at 21% O2. The data on the action of blue and red light on the CO2 compensation point seems to exclude the activation of photorespiration by blue light.The possible effects of blue light on apparent photosynthesis are discussed on the basis of the results presented.

Mild reductions in guard cell sucrose synthase 2 expression leads to slower stomatal opening and decreased whole plant transpiration in Nicotiana tabacum L

2021 ◽  
pp. 104370
Author(s):  
Francisco Bruno S. Freire ◽  
Ricardo L.G. Bastos ◽  
Raissa S.C. Bret ◽  
Silvio A. Cândido-Sobrinho ◽  
David B. Medeiros ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Guard Cell ◽  
Sucrose Synthase ◽  
Stomatal Opening ◽  
Plant Transpiration ◽  
Whole Plant ◽  
Nicotiana Tabacum L

Tobacco Chemistry/Chemische Zusammensetzung des Tabaks

1976 ◽  
Vol 8 (6) ◽  
Author(s):  
Arne J. Aasen ◽  
Sven-Olof Almquist ◽  
Curt R. Enzell
Keyword(s):  
Nicotiana Tabacum ◽  
Nicotiana Tabacum L

Abstract35: two isomeric 5,6-Epoxy-3-hydroxy-7-megastigmen-9-ones from Nicotiana tabacum L.

Inheritance of the Conversion of Nicotine to Nornicotine in Varieties of Nicotiana tabacum L. and Related Amphiploids 1

Crop Science ◽  
1964 ◽  
Vol 4 (4) ◽  
pp. 349-353 ◽  
Author(s):  
T. J. Mann ◽  
J. A. Weybrew ◽  
D. F. Matzinger ◽  
J. L. Hall
Keyword(s):  
Nicotiana Tabacum ◽  
Nicotiana Tabacum L
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