Wednesday, 28 March 2012

Inquery into the possibility of natural genetic variation having a significant effect on photosynthesis

Christian Forstner
42751843                       
Inquery into the possibility of natural genetic variation having a significant effect on photosynthesis


The article(Natural genetic variation in plant photosynthesis)

·          had two main themes
o   The researchers attempted to develop a good method for measuring the photosynthetic rate of a plant
o   The researchers discussed the results of their attempts to show that photosynthesis was affected  by natural genetic variation

·         A number of methods were considered, most prominently photosynthetic rate per unit area and photosynthetic rate per unit leaf area.

·         The reader was also made aware of factors such as canopy structure, however these were not considered in the model.

·         Photosynthetic rate per unit leaf area was considered the most advantageous as it is not affected by how close plants grow to each other.

·         The study did show that natural genetic variation affected the photosynthetic rate per unit leaf area.

·         Flood et. al. observed high rates of photosynthesis especially in very invasive plants.

·         This could be problematic if a plant is not controlled properly.

·         The researcher noted that this would enable a whole new perspective on increasing farm yields.

·         It was also noted that, considering such circumstances as the diminishing importance of harvest index and the increasing importance of total biomass in increasing crop yields, a genetically induced increase in the rate of photosynthesis could bring considerable advantages. This relates to a shift from sink to source limitation




Bibliography

Flood P. J. et. al. , 2011. Natural genetic variation in plant photosynthesis

. Trends in Plant Science, [Online] 16 (6), 327-335. Available through: Science direct [19 March 2012]

Reece J.B. et. al., 2012, Campbell Biology. 9th edition, Pearsons Australia Group Pty Ltd.


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