Two Mechanosensitive Channel Homologs Influence Division Ring Placement in Arabidopsis Chloroplasts
نویسندگان
چکیده
منابع مشابه
Two mechanosensitive channel homologs influence division ring placement in Arabidopsis chloroplasts.
Chloroplasts must divide repeatedly to maintain their population during plant growth and development. A number of proteins required for chloroplast division have been identified, and the functional relationships between them are beginning to be elucidated. In both chloroplasts and bacteria, the future site of division is specified by placement of the Filamentous temperature sensitive Z (FtsZ) r...
متن کاملTwo MscS Homologs Provide Mechanosensitive Channel Activities in the Arabidopsis Root
In bacterial and animal systems, mechanosensitive (MS) ion channels are thought to mediate the perception of pressure, touch, and sound [1-3]. Although plants respond to a wide variety of mechanical stimuli, and although many mechanosensitive channel activities have been characterized in plant membranes by the patch-clamp method, the molecular nature of mechanoperception in plant systems has re...
متن کاملA role for mechanosensitive channels in chloroplast and bacterial fission.
The division site in both chloroplasts and bacteria is established by the medial placement of the FtsZ ring, a process that is in part regulated by the evolutionarily conserved components of the Min system. We recently showed that mechanosensitive ion channels influence FtsZ ring assembly in both Arabidopsis thaliana chloroplasts and in Escherichia coli; in chloroplasts they do so through the s...
متن کاملTwo families of mechanosensitive channel proteins.
Mechanosensitive (MS) channels that provide protection against hypoosmotic shock are found in the membranes of organisms from the three domains of life: bacteria, archaea, and eucarya. Two families of ubiquitous MS channels are recognized, and these have been designated the MscL and MscS families. A high-resolution X-ray crystallographic structure is available for a member of the MscL family, a...
متن کاملSingle-channel mechanosensitive currents.
Morris and Horn (1) describe ion channel activity, elicited by mechanical stimulation, in both membrane patches and in whole neurons from the snail Lymnaea stagnalis. In whole-cell recordings, mechanical stimulation did not elicit the large macroscopic mechanosensitive currents (IMs) that were anticipated from studies of single mechanosensitive (MS) channels in membrane patches. These negative ...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2011
ISSN: 1532-298X,1040-4651
DOI: 10.1105/tpc.111.088112