Effect of Temperature on Stomatal Conductance and Ozone Injury of Pinto Bean Leaves

Plant Disease ◽  
1981 ◽  
Vol 65 (9) ◽  
pp. 750 ◽  
Author(s):  
C. A. Miller
Keyword(s):  
Stomatal Conductance ◽  
Effect Of Temperature ◽  
Ozone Injury ◽  
Pinto Bean ◽  
Bean Leaves

scholarly journals Land surface model photosynthesis and parameter calibration for boreal sites with adaptive population importance sampler

2019 ◽  
Author(s):  
Jarmo Mäkelä ◽  
Jürgen Knauer ◽  
Mika Aurela ◽  
Andrew Black ◽  
Martin Heimann ◽  
...  
Keyword(s):  
Stomatal Conductance ◽  
Land Surface ◽  
Carbon Fixation ◽  
Gross Primary Production ◽  
Effect Of Temperature ◽  
Coefficient Of Determination ◽  
Surface Model ◽  
Drought Event ◽  
Forest Site ◽  
Delayed Effect

Abstract. We calibrated the JSBACH model with six different stomatal conductance formulations using measurements from 10 FLUXNET coniferous evergreen sites in the Boreal zone. The parameter posterior distributions were generated by adaptive population importance sampler and the optimal values by a simple stochastic optimisation algorithm. The observations used to constrain the model are evapotranspiration (ET) and gross primary production (GPP). We identified the key parameters in the calibration process. These parameters control the soil moisture stress function and the overall rate of carbon fixation. We were able to improve the coefficient of determination and the model bias with all stomatal conductance formulations. There was no clear candidate for the best stomatal conductance model, although certain versions produced better estimates depending on the examined variable (ET, GPP) and the used metric. We were also able to significantly enhance the model behaviour during a drought event in a Finnish Scots pine forest site. The JSBACH model was also modified to use a delayed effect of temperature for photosynthetic activity. This modification enabled the model to correctly time and replicate the springtime increase in GPP (and ET) for conifers throughout the measurements sites used in this study.

METABOLIC CHANGES ASSOCIATED WITH OZONE INJURY OF BEAN LEAVES

1972 ◽  
Vol 52 (4) ◽  
pp. 589-597 ◽  
Author(s):  
L. E. CRAKER ◽  
J. S. STARBUCK
Keyword(s):  
Air Pollution ◽  
Phaseolus Vulgaris ◽  
Oxidant Injury ◽  
Metabolic Processes ◽  
Ozone Injury ◽  
Free Amine ◽  
Bean Plants ◽  
Amine Groups ◽  
Ozone Stress ◽  
Bean Leaves

Metabolic processes in primary leaves of bean plants (Phaseolus vulgaris) were altered by ozone stress. Decreases in levels of ribonucleic acid (RNA) and protein, and increases in ribonuclease (RNase) and free amine groups were associated with visible oxidant injury to the leaves. It appears that some air pollution injury to plants may result from changes in metabolic processes.

Effects of ambient ozone pretreatment on transpiration and susceptibility to ozone injury

1977 ◽  
Vol 55 (2) ◽  
pp. 193-197 ◽  
Author(s):  
V. C. Runeckles ◽  
P. M. Rosen
Keyword(s):  
Acute Injury ◽  
Relative Susceptibility ◽  
Ambient Ozone ◽  
Ozone Injury ◽  
Early Increase ◽  
Initial Decrease ◽  
Ozone Pretreatment ◽  
Low Levels ◽  
Ozone Levels ◽  
Bean Leaves

The effects of daily pretreatment with low levels of ozone (0.02 μl litre−1) on the susceptibility of primary bean leaves to acute ozone injury involve several stages. Plants subjected daily to low ozone from the time of sowing exhibit an early resistance to acute injury which decreases with time. When the low ozone pretreatments begin about 10 days after sowing, there is no change in susceptibility for 2–3 days, then it increases to a level which remains constant. At the start of this period of greater susceptibility, such pretreated plants are more susceptible than controls in filtered air; after about 8 days, they are less susceptible because of the marked increase insusceptibility of the controls with time. In contrast, daily pretreatments with higher (0.05 μl litre−1) levels, beginning 8 days after sowing, cause an initial decrease in susceptibility followed by a marked increase, leading to predisposition to acute injury.The early increase in susceptibility of plants transferred from filtered air to 0.02 μl ozone litre−1appears to be the result of the decreased ability of stomates to close in response to high ozone levels. The later stage of decreased relative susceptibility is associated with a dampening of stomatal activity, which is independent of the presence of high ozone levels.

scholarly journals Acid-Soluble Nucleotides of Pinto Bean Leaves at Different Stages of Development

1969 ◽  
Vol 44 (11) ◽  
pp. 1499-1510 ◽  
Author(s):  
L. H. Weinstein ◽  
D. C. McCune ◽  
Jill F. Mancini ◽  
P. van Leuken
Keyword(s):  
Stages Of Development ◽  
Pinto Bean ◽  
Bean Leaves

Timing of events in crown-gall tumor development on pinto bean leaves

1965 ◽  
Vol 12 (2) ◽  
pp. 309-327 ◽  
Author(s):  
James A. Lippincott ◽  
Barbara B. Lippincott
Keyword(s):  
Crown Gall ◽  
Tumor Development ◽  
Crown Gall Tumor ◽  
Pinto Bean ◽  
Bean Leaves

Permeability Changes in Pinto Bean Leaves Exposed to Gaseous HCl

1979 ◽  
Vol 92 (3) ◽  
pp. 271-276 ◽  
Author(s):  
Robert L. Heath ◽  
Anton G. Endress
Keyword(s):  
Permeability Changes ◽  
Pinto Bean ◽  
Bean Leaves

Susceptibility of Pinto Bean Leaves to Tobacco Mosaic Virus and its Relationship to Leaf Ribonuclease Content

Nature ◽  
1962 ◽  
Vol 193 (4816) ◽  
pp. 656-658 ◽  
Author(s):  
V. SANTILLI ◽  
C. M. NEPOKROEFF ◽  
N. C. GAGLIARDI
Keyword(s):  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Pinto Bean ◽  
Bean Leaves
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