Friday, March 29, 2013

Plants and Bac

www.sciencedaily.com/releases/2012/10/121031214140.htm
(University of Milan, Italy)

In the article I read a not-so-new discovery was made. Scientists have known for  a while about the way different organisms work together in their environments. In many cases these symbiotic relationships are necessary for life for the individuals. However, not until recently was this idea used with plants in drought conditions being supported by bacteria. In environments with little water availability, some plants have formed alliances with soil microbes that help promote plant growth even in these conditions. As we have been learning about how plants adapt to environmental difficulties this is a long the same lines. Although this development is not specifically a phsyical or physiological adaptation of the plants, it is an adaptation of communication between the bacteria and plant roots.

Reading on, the scientists researching this actually discovered that it is an endosymbiotic relationship. In areas of drought stress, these bacterial communities become 40% more productive at increasing plant photosynthesis and biomass production. Also it raises the level of bacteria in the area. So as drought occurs, the bacteria grow and become more effective and thus the plants are able to continue to live with little to no water.

These findings lead scientists at the University to say that plants can't be considered single organisms when fully-functional in these conditions. Instead the are referred to as "meta-organisms" of plants and microbiome. This discovery can lead to a higher efficiency in the farm industry in certain regions. Those farmers that suffer damage to their crops from drought would be able to insert these microbes into the soil to increase productivity in hard times.

Personally, I found this article to be interesting because it is a perfect example of symbiotic and endosymbiotic relationships that we have always heard about in biology. And this one especially can be put forth for further developments!

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