scholarly journals Leaf gas exchange and carbohydrate concentrations in Pinus pinaster plants subjected to elevated CO2 and a soil drying cycle

1999 ◽  
Vol 56 (1) ◽  
pp. 71-76 ◽  
Author(s):  
Catherine Picon-Cochard ◽  
Jean-Marc Guehl
Keyword(s):  
Gas Exchange ◽  
Elevated Co2 ◽  
Pinus Pinaster ◽  
Leaf Gas Exchange ◽  
Soil Drying

scholarly journals Effects of elevated CO2 and soil quality on leaf gas exchange and above-ground growth in beech-spruce model ecosystems

1998 ◽  
Vol 140 (2) ◽  
pp. 185-196 ◽  
Author(s):  
PHILIPP EGLI ◽  
STEFAN MAURER ◽  
MADELEINE S. GUNTHARDT-GOERG ◽  
CHRISTIAN KORNER
Keyword(s):  
Gas Exchange ◽  
Soil Quality ◽  
Elevated Co2 ◽  
Leaf Gas Exchange ◽  
Model Ecosystems

Elevated CO2 increases the leaf temperature of two glasshouse-grown C4 grasses

2002 ◽  
Vol 29 (12) ◽  
pp. 1377 ◽  
Author(s):  
Katharina Siebke ◽  
Oula Ghannoum ◽  
Jann P. Conroy ◽  
Susanne von Caemmerer
Keyword(s):  
Gas Exchange ◽  
Elevated Co2 ◽  
Leaf Gas Exchange ◽  
Stomatal Closure ◽  
Co2 Assimilation ◽  
High Irradiance ◽  
Leaf Temperature ◽  
C4 Grasses ◽  
Co2 Partial Pressure ◽  
The Difference

This study investigates the effect of elevated CO2 partial pressure (pCO2)-induced stomatal closure on leaf temperature and gas exchange of C4 grasses. Two native Australian C4 grasses, Astrebla lappacea (Lindl.) Domin and Bothriochloa bladhii Kuntze, were grown at three different pCO2 (35, 70 and 120 Pa) in three matched, temperature-controlled glasshouse compartments. The difference between leaf and air temperature (ΔT) was monitored diurnally with thermocouples. ΔT increased with both step-increases of ambient pCO2. Average noon leaf temperature increased by 0.4 and 0.3°C for A. lappacea with the 35–70 and 70–120 Pa steps of pCO2 elevation, respectively. For B. bladhii, the increases were 0.5°C for both pCO2 steps. ΔT was strongly dependent on irradiance, pCO2 and air humidity. Leaf gas exchange was measured at constant temperature and high irradiance at the three growth pCO2. Under these conditions, CO2 assimilation saturated at 70 Pa, while stomatal conductance decreased by the same extent (0.58-fold) with both step-increases in pCO2, suggesting that whole-plant water use efficiency of C4 grasses would increase beyond a doubling of ambient pCO2. The ratio of intercellular to ambient pCO2 was not affected by short- or long-term doubling or near-tripling of pCO2, in either C4 species when measured under standard conditions.

Leaf gas exchange responses of 13 prairie grassland species to elevated CO2 and increased nitrogen supply

2001 ◽  
Vol 150 (2) ◽  
pp. 405-418 ◽  
Author(s):  
Tali D. Lee ◽  
Mark G. Tjoelker ◽  
David S. Ellsworth ◽  
Peter B. Reich
Keyword(s):  
Gas Exchange ◽  
Elevated Co2 ◽  
Leaf Gas Exchange ◽  
Nitrogen Supply ◽  
Grassland Species

Effect of soil drying on growth, biomass allocation and leaf gas exchange of two annual grass species

1996 ◽  
Vol 185 (1) ◽  
pp. 137-149 ◽  
Author(s):  
Tibor Kalapos ◽  
Riki van den Boogaard ◽  
Hans Lambers
Keyword(s):  
Gas Exchange ◽  
Biomass Allocation ◽  
Leaf Gas Exchange ◽  
Grass Species ◽  
Soil Drying ◽  
Annual Grass

Leaf gas exchange and water relation characteristics of field quinoa (Chenopodium quinoa Willd.) during soil drying

2000 ◽  
Vol 13 (1) ◽  
pp. 11-25 ◽  
Author(s):  
C.R Jensen ◽  
S.-E Jacobsen ◽  
M.N Andersen ◽  
N Núñez ◽  
S.D Andersen ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Chenopodium Quinoa ◽  
Water Relation ◽  
Soil Drying

scholarly journals Isolates of Arbuscular Mycorrhizal (AM) Fungi Alter Citrus Leaf Gas Exchange during Soil Water Deficit Stress and Recovery

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 541D-541
Author(s):  
Matthew W. Fidelibus ◽  
Chris A. Martin
Keyword(s):  
Gas Exchange ◽  
Soil Water ◽  
Glomus Mosseae ◽  
Leaf Gas Exchange ◽  
Am Fungi ◽  
Water Deficit Stress ◽  
Soil Drying ◽  
Soil Water Deficit ◽  
The Third ◽  
Mycorrhizal Plants

Four AM fungal isolates (Glomus sp.) from disparate edaphic conditions were screened for effects on leaf gas exchange of `Volkamer' lemon (Citrus volkameriana Ten. and Pasq.) plants of similar size under conditions of increased soil water deficit stress and recovery from stress. Mycorrhizal and non-mycorrhizal plants were grown in 8-L containers for 10 weeks under well-watered conditions in a glasshouse and then subjected to three consecutive soil-drying episodes of increased severity (mean soil water tension reached –0.02, –0.06, and –0.08 MPa, respectively). Gas exchange measurements were made on the last day of each soil-drying episode. Plants were irrigated after each soil-drying episode, and measurements were repeated on the following 2 recovery days, when soil remained moist. All measurements were made at mid-day with a LI-COR 6200 portable photosynthesis system. The effect of AM fungi on leaf gas exchange fluxes varied depending on the isolate and the intensity of soil water stress. Leaf gas exchange fluxes always were highest for plants colonized by Glomus mosseae (Nicol. & Gerde.) isolate 114C, except during the third soil-drying episode, when all mycorrhizal plants had similar, and lower, gas exchange fluxes compared with non-mycorrhizal plants. During recovery from the third soil-drying episode, Glomus mosseae isolate 51C had lower leaf gas exchange fluxes compared with all other plants. Our results show that AM fungi can alter leaf gas exchange fluxes of citrus, under conditions of optimal P nutrition, in an isolate-specific manner.

CO2 elevation modulates the response of leaf gas exchange to progressive soil drying in tomato plants

2019 ◽  
Vol 268 ◽  
pp. 181-188 ◽  
Author(s):  
Jie Liu ◽  
Tiantian Hu ◽  
Liang Fang ◽  
Xiaoying Peng ◽  
Fulai Liu
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Soil Drying ◽  
Tomato Plants ◽  
Co2 Elevation
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