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in plant discuss ways in which stomatal density might change due to increasing g

ID: 71222 • Letter: I

Question

in plant discuss ways in which stomatal density might change due to increasing global warming/climate change?

The Effects of Climate Change: the rapidly increasing levels of greenhouse gases, particularly CO2, in our atmosphere is a serious global concern. What would be your hypothesis of ways in which stomatal density might change due to increasing global warming/climate change? Specifically address the following: Paleobotanists and paleoclimatologists agree that leaf development was due to low levels of atmospheric CO2 concentrations (Beerling, 2005). Given what you know about stomata function, what would be your hypothesis about possible changes in leaf morphology with increasing CO2 concentrations? Also consider what effects that those possible changes might have on other organisms. Beerling, David J. 2005. Leaf evolution: gases, genes, and geochemistry. Annals of Botany 96:345-352.

Explanation / Answer

99 % of the carbondioxide used in the process of photosynthesis is through stomata.Accumulation of greenhouse gases in the atmosphere depleted the ozone layer and consequently causes global warming. Some greenhouse gases such as carbondioxide occur naturally and are emitted to the atmosphere through natural processes and human activities.

The more stomata per unit area (stomata density) the more CO2 can be taken up, and the more water can be released. Thus, higher stomata density can greatly amplify the potential for behavioral control over water loss rate and CO2 uptake.

With the increase in carbondioxide at alarming levels in atmosphere, we can expect the stomatal density gets reduced in leaves to reduce water loss and reduce carbondioxide uptake