| Value |
2.94
µm/sec
Range: ±0.34 µm/sec
|
| Organism |
Archaea Halobacterium halobium |
| Reference |
Marwan W, Alam M, Oesterhelt D. Rotation and switching of the flagellar motor assembly in Halobacterium halobium. J Bacteriol. 1991 Mar173(6):1971-7. p.1972 caption of fig.2PubMed ID2002000
|
| Method |
"When
the
swimming
behavior
of
monopolarly
flagellated
cells
was
observed,
often
faster
and
smoother
swimming
during
CW [clockwise]
than
during
CCW [counter clockwise]
rotation
could
be
seen.
A
typical
example
of
this
behavior
is
shown
in
Fig.
1.
To
quantitate
the
efficiency
of
flagellar
propulsion
in
the
two
modes,
[investigators]
recorded
the
swimming
pattern
and
the
velocity
of
single
cells
with
a
computer-assisted
motion
analysis
system
under
simultaneous
observation
of
the
rotational
sense
of
the
flagellar
bundle
by
high-intensity
dark-field
microscopy." |
| Comments |
"The speed of a single cell during successive intervals of CW and CCW rotation of its flagellar bundle was recorded as in Fig.1 for periods of 5s. Each bar represents the average velocity of the cell during this period. From time to time, the cell was stimulated with light to induce motor switching. The
cell
had
a
speed
of
2.94±0.34µm/s
(mean
±
standard
deviation
n
=
48)
during
CW
rotation
and
a
speed
of
1.59±0.39µm/s
(n
=
45)
during
CCW
rotation." |
| Entered by |
timurt |
| ID |
111147 |