A gas-exchange study of photosynthesis and isoprene emission inQuercus rubra L.

Planta ◽  
1990 ◽  
Vol 182 (4) ◽  
pp. 523-531 ◽  
Author(s):  
Francesco Loreto ◽  
Thomas D. Sharkey
Keyword(s):  
Gas Exchange ◽  
Isoprene Emission ◽  
Exchange Study

scholarly journals Wind Speed and Sea State Dependencies of Air‐Sea Gas Transfer: Results From the High Wind Speed Gas Exchange Study (HiWinGS)

2017 ◽  
Vol 122 (10) ◽  
pp. 8034-8062 ◽  
Author(s):  
B. W. Blomquist ◽  
S. E. Brumer ◽  
C. W. Fairall ◽  
B. J. Huebert ◽  
C. J. Zappa ◽  
...  
Keyword(s):  
Wind Speed ◽  
Gas Exchange ◽  
Gas Transfer ◽  
High Wind ◽  
Sea State ◽  
High Wind Speed ◽  
Exchange Study

Leaf gas exchange and isoprene emission in poplar in response to long-term experimental night-time warming and summer drought in a forest-steppe ecosystem

2018 ◽  
Vol 152 ◽  
pp. 60-67 ◽  
Author(s):  
Isabel Nogues ◽  
Mauro Medori ◽  
Alessio Fortunati ◽  
Eszter Lellei-Kovács ◽  
György Kröel-Dulay ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Forest Steppe ◽  
Summer Drought ◽  
Night Time ◽  
Isoprene Emission ◽  
Steppe Ecosystem

A gas-exchange study of the differential response of Quercus species to long-term fumigations with a gradient of sulphur dioxide

1995 ◽  
Vol 85 (3) ◽  
pp. 1257-1262 ◽  
Author(s):  
G. Lorenzini ◽  
A. Panicucci ◽  
C. Nali
Keyword(s):  
Gas Exchange ◽  
Sulphur Dioxide ◽  
Differential Response ◽  
Exchange Study ◽  
Quercus Species

scholarly journals Isoprene emission and photosynthesis during heatwaves and drought in black locust

2017 ◽  
Vol 14 (15) ◽  
pp. 3649-3667 ◽  
Author(s):  
Ines Bamberger ◽  
Nadine K. Ruehr ◽  
Michael Schmitt ◽  
Andreas Gast ◽  
Georg Wohlfahrt ◽  
...  
Keyword(s):  
Heat Stress ◽  
Drought Stress ◽  
Stomatal Conductance ◽  
Gas Exchange ◽  
Black Locust ◽  
Leaf Gas Exchange ◽  
Net Photosynthesis ◽  
Response Curves ◽  
Drought Treatment ◽  
Isoprene Emission

Abstract. Extreme weather conditions like heatwaves and drought can substantially affect tree physiology and the emissions of isoprene. To date, however, there is only limited understanding of isoprene emission patterns during prolonged heat stress and next to no data on emission patterns during coupled heat–drought stress or during post-stress recovery. We studied gas exchange and isoprene emissions of black locust trees under episodic heat stress and in combination with drought. Heatwaves were simulated in a controlled greenhouse facility by exposing trees to outside temperatures +10 °C, and trees in the heat–drought treatment were supplied with half of the irrigation water given to heat and control trees. Leaf gas exchange of isoprene, CO2 and H2O was quantified using self-constructed, automatically operating chambers, which were permanently installed on leaves (n = 3 per treatment). Heat and combined heat–drought stress resulted in a sharp decline of net photosynthesis (Anet) and stomatal conductance. Simultaneously, isoprene emissions increased 6- to 8-fold in the heat and heat–drought treatment, which resulted in a carbon loss that was equivalent to 12 and 20 % of assimilated carbon at the time of measurement. Once temperature stress was released at the end of two 15-day-long heatwaves, stomatal conductance remained reduced, while isoprene emissions and Anet recovered quickly to values of the control trees. Further, we found that isoprene emissions covaried with Anet during nonstress conditions, while during the heatwaves, isoprene emissions were not related to Anet but to light and temperature. Under standard air temperature and light conditions (here 30 °C and photosynthetically active radiation of 500 µmol m−2 s−1), isoprene emissions of the heat trees were by 45 % and the heat–drought trees were by 27 % lower than in control trees. Moreover, temperature response curves showed that not only the isoprene emission factor changed during both heat and heat–drought stress, but also the shape of the response. Because introducing a simple treatment-specific correction factor could not reproduce stress-induced isoprene emissions, different parameterizations of light and temperature functions are needed to describe tree isoprene emissions under heat and combined heat–drought stress. In order to increase the accuracy of predictions of isoprene emissions in response to climate extremes, such individual stress parameterizations should be introduced to current BVOC models.

DLCO versus DLCO/VA as predictors of pulmonary gas exchange

2008 ◽  
Vol 2008 ◽  
pp. 174-175
Author(s):  
K.L. Lewis
Keyword(s):  
Gas Exchange ◽  
Pulmonary Gas Exchange

Effects of chloride and sodium on gas exchange parameters and water relations of Citrus plants

1992 ◽  
Vol 86 (1) ◽  
pp. 115-123 ◽  
Author(s):  
J. Banuls ◽  
E. Primo-Millo
Keyword(s):  
Gas Exchange ◽  
Water Relations ◽  
Gas Exchange Parameters ◽  
Exchange Parameters

Effects of atmospheric CO2 enrichment and root restriction on leaf gas exchange and growth of banana (Musa)

1996 ◽  
Vol 97 (4) ◽  
pp. 685-693
Author(s):  
B. Schaffer ◽  
C. Searle ◽  
A. W. Whiley ◽  
R. J. Nissen
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Co2 Enrichment ◽  
Atmospheric Co2 ◽  
Root Restriction

Mercury gas exchange from aquatic plants

2003 ◽  
Vol 107 ◽  
pp. 1075-1078 ◽  
Author(s):  
L. Poissant ◽  
C. Beauvais ◽  
M. Pilote
Keyword(s):  
Gas Exchange ◽  
Aquatic Plants
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