scholarly journals Involvement of two-component signalling systems in the regulation of stomatal aperture by light inArabidopsis thaliana

2014 ◽  
Vol 203 (2) ◽  
pp. 462-468 ◽  
Author(s):  
Elodie Marchadier ◽  
Alistair M. Hetherington
Keyword(s):  
Stomatal Aperture ◽  
Two Component ◽  
Signalling Systems

scholarly journals Improving Orthogonality in Two-Component Biological Signalling Systems Using Feedback Control

2019 ◽  
Vol 3 (2) ◽  
pp. 326-331 ◽  
Author(s):  
Harrison Steel ◽  
Aivar Sootla ◽  
Benjamin Smart ◽  
Nicolas Delalez ◽  
Antonis Papachristodoulou
Keyword(s):  
Feedback Control ◽  
Two Component ◽  
Signalling Systems

scholarly journals Clock-associated genes in Arabidopsis : a family affair

2001 ◽  
Vol 356 (1415) ◽  
pp. 1745-1753 ◽  
Author(s):  
David E. Somers
Keyword(s):  
Transcription Factor ◽  
Circadian Clock ◽  
Gene Families ◽  
Forward Genetics ◽  
Pas Domain ◽  
Receiver Domain ◽  
Domain Structures ◽  
Two Component ◽  
Similarities And Differences ◽  
Signalling Systems

The identification of components of the plant circadian clock has been advanced recently with the success of two forward genetics approaches. The ZEITLUPE and TOC1 loci were cloned and each was found to be part of two separate, larger gene families with intriguing domain structures. The ZTL family of proteins contains a subclass of the PAS domain coupled to an F box and kelch motifs, suggesting that they play a role in a novel light–regulated ubiquitination mechanism. TOC1 shares similarity to the receiver domain of the well–known two–component phosphorelay signalling systems, combined with a strong similarity to a region of the CONSTANS transcription factor, which is involved in controlling flowering time. When added to the repertoire of previously identified clock–associated genes, it is clear that both similarities and differences with other circadian systems will emerge in the coming years.

Inhibitors of bacterial two-component signalling systems

2000 ◽  
Vol 9 (10) ◽  
pp. 2351-2369 ◽  
Author(s):  
Mark J Macielag ◽  
Raul Goldschmidt
Keyword(s):  
Two Component ◽  
Signalling Systems

The two-component signalling networks of Mycobacterium tuberculosis display extensive cross-talk in vitro

2015 ◽  
Vol 469 (1) ◽  
pp. 121-134 ◽  
Author(s):  
Ruchi Agrawal ◽  
Akancha Pandey ◽  
Mayooreshwar P. Rajankar ◽  
Narendra M. Dixit ◽  
Deepak K. Saini
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Cross Talk ◽  
Environmental Changes ◽  
Two Component ◽  
Sense And Respond ◽  
Signalling Systems

Bacteria use two-component signalling systems (TCSs) to sense and respond to environmental changes. Currently, they are thought to be highly specific, with each TCS functioning independently. Here, unlike the prevalent paradigm, we show that the TCSs of M. tuberculosis cross-talk extensively, thereby proposing an alternative signalling scenario.

scholarly journals Predicting Inter-Species Cross-Talk in Two-Component Signalling Systems

PLoS ONE ◽  
2012 ◽  
Vol 7 (5) ◽  
pp. e37737 ◽  
Author(s):  
Sonja Pawelczyk ◽  
Kathryn A. Scott ◽  
Rebecca Hamer ◽  
Gareth Blades ◽  
Charlotte M. Deane ◽  
...  
Keyword(s):  
Cross Talk ◽  
Two Component ◽  
Signalling Systems ◽  
Species Cross

Spectroscopic Observations of Visual Double Stars

1965 ◽  
Vol 5 ◽  
pp. 109-111
Author(s):  
Frederick R. West
Keyword(s):  
Radial Velocity ◽  
High Dispersion ◽  
Velocity Difference ◽  
Spectrograph Slit ◽  
Spectroscopic Observations ◽  
Double Stars ◽  
Visual Double Stars ◽  
Relative Orbit ◽  
Two Component ◽  
Star Images

There are certain visual double stars which, when close to a node of their relative orbit, should have enough radial velocity difference (10-20 km/s) that the spectra of the two component stars will appear resolved on high-dispersion spectrograms (5 Å/mm or less) obtainable by use of modern coudé and solar spectrographs on bright stars. Both star images are then recorded simultaneously on the spectrograph slit, so that two stellar components will appear on each spectrogram.

A technique for protecting delicate specimens during processing

1989 ◽  
Vol 47 ◽  
pp. 982-983
Author(s):  
R.J. Mount ◽  
R.V. Harrison
Keyword(s):  
Basilar Membrane ◽  
Low Cost ◽  
Organ Of Corti ◽  
Region Of Interest ◽  
Sensory Epithelium ◽  
Physical Damage ◽  
Air Drying ◽  
Specimen Handling ◽  
Two Component

The sensory end organ of the ear, the organ of Corti, rests on a thin basilar membrane which lies between the bone of the central modiolus and the bony wall of the cochlea. In vivo, the organ of Corti is protected by the bony wall which totally surrounds it. In order to examine the sensory epithelium by scanning electron microscopy it is necessary to dissect away the protective bone and expose the region of interest (Fig. 1). This leaves the fragile organ of Corti susceptible to physical damage during subsequent handling. In our laboratory cochlear specimens, after dissection, are routinely prepared by the O-T- O-T-O technique, critical point dried and then lightly sputter coated with gold. This processing involves considerable specimen handling including several hours on a rotator during which the organ of Corti is at risk of being physically damaged. The following procedure uses low cost, readily available materials to hold the specimen during processing ,preventing physical damage while allowing an unhindered exchange of fluids.Following fixation, the cochlea is dehydrated to 70% ethanol then dissected under ethanol to prevent air drying. The holder is prepared by punching a hole in the flexible snap cap of a Wheaton vial with a paper hole punch. A small amount of two component epoxy putty is well mixed then pushed through the hole in the cap. The putty on the inner cap is formed into a “cup” to hold the specimen (Fig. 2), the putty on the outside is smoothed into a “button” to give good attachment even when the cap is flexed during handling (Fig. 3). The cap is submerged in the 70% ethanol, the bone at the base of the cochlea is seated into the cup and the sides of the cup squeezed with forceps to grip it (Fig.4). Several types of epoxy putty have been tried, most are either soluble in ethanol to some degree or do not set in ethanol. The only putty we find successful is “DUROtm MASTERMENDtm Epoxy Extra Strength Ribbon” (Loctite Corp., Cleveland, Ohio), this is a blue and yellow ribbon which is kneaded to form a green putty, it is available at many hardware stores.

Fifth virial coefficient of a two-component mixture of hard discs

1997 ◽  
Vol 90 (4) ◽  
pp. 679-681
Author(s):  
F. SAIJA ◽  
G. FIUMARA ◽  
P.V. GIAQUINTA
Keyword(s):  
Virial Coefficient ◽  
Component Mixture ◽  
Two Component
Sign in / Sign up

Export Citation Format

Share Document