• Corpus ID: 34526434

Tansley review Plant responses to low [ CO 2 ] of the past

@inproceedings{Gerhart2010TansleyRP,
  title={Tansley review Plant responses to low [ CO 2 ] of the past},
  author={Laci M Gerhart and Joy K Ward},
  year={2010}
}
During the Last Glacial Maximum (LGM; 18 000–20 000 yr ago) and previous glacial periods, atmospheric [CO2] dropped to 180–190 ppm, which is among the lowest concentrations that occurred during the evolution of land plants. Modern atmospheric CO2 concentrations ([CO2]) are more than twice those of the LGM and 45% higher than pre-industrial concentrations. Since CO2 is the carbon source for photosynthesis, lower carbon availability during glacial periods likely had a major impact on plant… 
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Learning from the past: how low [CO₂] studies inform plant and ecosystem response to future climate change.
TLDR
These studies have primarily been conducted on modern plants grown for a single generation in low [CO2], and do not address the potential evolutionary adaptive responses to low CO2 which would only become evident in plants growing for long-time periods and many generations under these environmental conditions.
Increasing atmospheric [CO2] from glacial to future concentrations affects drought tolerance via impacts on leaves, xylem and their integrated function.
TLDR
It is shown that, under glacial conditions, changes in leaf and xylem properties could increase drought tolerance, while under future conditions, greater productivity may only occur when higher water use can be accommodated.
CO2 studies remain key to understanding a future world.
TLDR
Three examples of topics in which significant questions in CO2 research remain unresolved are discussed, including mechanisms of CO2 effects on plant developmental transitions; implications of rising [CO2 ] for integrated plant-water dynamics and drought tolerance; and CO2 effect on symbiotic interactions and eco-evolutionary feedbacks.
Life at the boundary: photosynthesis at the soil-fluid interface. A synthesis focusing on mosses.
TLDR
Mosses are among the earliest branching embryophytes and probably originated not later than the early Ordovician when atmospheric CO2 was higher and O2 was lower than today, with evidence, albeit limited, for positive selection of moss Rubisco.
Was low CO 2 a driving force of C 4 evolution : Arabidopsis responses to long-term low CO 2 stress
The responses of long-term growth of plants under elevated CO2 have been studied extensively. Comparatively, the responses of plants to subambient CO2 concentrations have not been well studied. This…
Photosynthesis of C 3 , C 3 -C 4 , and C 4 grasses at glacial CO 2
TLDR
Under glacial CO2, high resource use efficiency offers a key evolutionary advantage for the transition from C 3 to C4 photosynthesis in water- and nutrient-limited environments.
Arabis alpina and Arabidopsis thaliana have different stomatal development strategies in response to high altitude pressure conditions
TLDR
The adaptation of the high altitude plant A. alpina to high altitude pressure conditions does not consist in a genetically fixed elevatedStomatal density but in a different response strategy of stomatal development to environmental factors compared to the lowland plant A thaliana.
Multi-seasonal effects of warming and elevated CO 2 on the physiology, growth and production of mature, field grown, Shiraz grapevines
TLDR
Interactive effects of the treatments on gas exchange were observed; photosynthesis rates were significantly higher in the eCO2+eTemp treatment, compared to e CO2 alone, suggesting that the likely future climate will have a larger impact on viticulture than might be predicted from experiments examining only one of these factors.
Analysis of the photosynthetic response induced by variation potential in geranium
TLDR
The results support the hypothesis that Calvin cycle inactivation plays a key role in photosynthetic response induced by electrical signals and suggest that there are two different mechanisms of light-stage inactivation induced by the variation potential in geranium.
Palaeo-precipitation is a major determinant of palm species richness patterns across Madagascar: a tropical biodiversity hotspot
TLDR
It is found that palaeoclimate exerted a strong influence on palm species richness patterns, with richness peaking in areas with higher LGM precipitation relative to present-day even after controlling for modern environment.
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