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Frontiers news briefs: July 4
Date:7/4/2013

s of the model plant Arabidopsis thaliana in the presence or absence (i.e. in sterilized soil) of microbes extracted from compost soil. Surprisingly, leaf growth was doubled in the presence of microbes. Chemical analyses and high-throughput analysis of gene expression within plant tissues and soil surrounding roots revealed that the added microorganisms facilitated iron acquisition by plants. Soil microbes also affected other plant processes, including acquisition of nitrogen, production of free radicals, and defense against diseases. In conclusion, this study showed the main underlying processes occurring in plants during interactions with soil microbial populations and emphasized the important role of soil microbes for plant growth.

Researcher contact:

Prof. Peer Schenk
School of Agriculture and Food Sciences
University of Queensland
E-mail: p.schenk@uq.edu.au

URL: http://www.frontiersin.org/Plant-Microbe_Interaction/10.3389/fpls.2013.00235/abstract


Frontiers in Neuroscience

Dopamine imbalance in Huntington's disease: a mechanism for the lack of behavioral flexibility

Huntington's disease is a hereditary neurodegenerative disease that is caused by a mutation in the human huntingtin gene. It is characterized by uncontrollable dance-like movements (chorea) in the early stages of the disease and loss of voluntary movement (behavioral inflexibility) in the later stages. Huntington's disease leads to massive cell death in the striatum, a part of the brain involved in voluntary motor movement, as well as to degenerative changes in the brain's cortex. Since many cells in the striatum use dopamine as a chemical signal for communication, changes in dopamine neurotransmission may hinder cell-to-cell communication in
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Contact: Gozde Zorlu
gozde.zorlu@frontiersin.org
Frontiers
Source:Eurekalert

Page: 1 2 3 4 5 6

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