Original file (954 × 890 pixels, file size: 123 KB, MIME type: image/jpeg)
Summary
DescriptionAlgaeconjugate.jpg |
I took this image using a digital camera and a compound light microscope at a total magnification of 100X. This is fresh water green algae collected from the scum on the top of a pond in February 2007 in Waxahachie, Texas. The weather had been warm and was turning cold again. I think that it induced these algae to conjugate. The pointer is showing conjugating filamentous green algae. The two strands are still separate at the bottom where the cells have not yet conjugated. As the strands get closer together a sex pilus is formed and one cell moves across to fuse with the other cell. The empty cell walls in the other strand can clearly be seen. Rozzychan|User:Rozzychan|Rozzychan 13:05, 17 February 2007 (UTC) |
Date | |
Source | Own work |
Author | Rozzychan (talk) (Uploads) |
I took this image using a digital camera and a compound light microscope at a total magnification of 100X. This is fresh water green algae collected from the scum on the top of a pond in February 2007 in Waxahachie, Texas. The weather had been warm and was turning cold again. I think that it induced these algae to conjugate.
The pointer is showing conjugating filamentous green algae. The two strands are still separate at the bottom where the cells have not yet conjugated. As the strands get closer together a sex pilus is formed and one cell moves across to fuse with the other cell. The empty cell walls in the other strand can clearly be seen. Rozzychan 13:05, 17 February 2007 (UTC)
Licensing
Public domainPublic domainfalsefalse |
This work has been released into the public domain by its author, Rozzychan~enwiki. This applies worldwide. In some countries this may not be legally possible; if so: |
Original upload log
Transferred from en.wikipedia to Commons using For the Common Good.
Date/Time | Dimensions | User | Comment |
---|---|---|---|
09:33, 15 February 2010 | 954 × 890 (126,060 bytes) | w:en:Bob Blaylock (talk | contribs) | I hope the creator of the original version doesn't mind, but this file seemed to be desperately in need of some minor adjustments, which I have performed under PhotoShop. |
13:05, 17 February 2007 | 954 × 890 (114,533 bytes) | w:en:Rozzychan~enwiki (talk | contribs) | I took this image using a digital camera and a compound light microscope at a total magnification of 100X. This is fresh green algae collected from the scum on the top of a pond in February 2007 in Waxahachie, Texas. The weather had been warm and was turn |
Items portrayed in this file
depicts
copyright status
copyrighted, dedicated to the public domain by copyright holder
copyright license
released into the public domain by the copyright holder
inception
15 February 2010
captured with
Nikon Coolpix L4
exposure time
0.01666666666666666666 second
f-number
2.8
focal length
6.3 millimetre
ISO speed
100
media type
image/jpeg
instance of
photograph
checksum
d3ce43923dce968bef7aa1085827c1021b53e36c
data size
126,060 byte
height
890 pixel
width
954 pixel
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:07, 5 May 2015 | 954 × 890 (123 KB) | OgreBot | (BOT): Reverting to most recent version before archival | |
00:07, 5 May 2015 | 954 × 890 (112 KB) | OgreBot | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2007-02-17 13:05:12 by Rozzychan~enwiki | ||
10:05, 28 April 2015 | 954 × 890 (123 KB) | Samee | Transferred from en.wikipedia: see original upload log above |
File usage
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Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | NIKON |
---|---|
Camera model | COOLPIX L4 |
Copyright holder |
|
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/2.8 |
ISO speed rating | 100 |
Date and time of data generation | Unknown date |
Lens focal length | 6.3 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop 7.0 |
File change date and time | 01:29, 15 February 2010 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | Unknown date |
Meaning of each component |
|
Image compression mode | 2 |
APEX aperture | 2.97 |
Exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 38 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
IIM version | 2 |
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Annuals36
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Bulbs, Corms & Tubers41
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Ferns27
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Fruits3
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Herb17
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Northeast Native Plants112
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Rose1
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Wetland Plants4
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