File:(MHNT) Ranunculus asiaticus - example of Totipotency.jpg
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Ranunculus asiaticus - example of totipotency L., 1759 |
Photographer |
Didier Descouens and Boris Presseq |
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Description |
Deutsch: Ranunculus asiaticus. Seltenes Ereignis, das natürlich sein kann, aber bei Gartenbausorten, die Monster begünstigen, weitaus häufiger vorkommt. Pflanzenzellen sind totipotent und daher befinden sich in der Mitte der Blütenknospe stammzellnahe Zellen. Normalerweise sollen sie Blütenblätter geben; Aber unter der Einwirkung eines Krankheitserregers, der Tageslänge, des Regens oder eines anderen unvorhergesehenen Ereignisses können diese Zellen jede Art von Organ oder im Fall dieses Bildes neue Pflanzen hervorbringen. Diese Originalität der Pflanzenwelt wurde ausgenutzt, um diese Gewebe in vitro zu kultivieren und eine Pflanze durch Klonen zu vermehren. English: Ranunculus asiaticus. Rare event which can be natural but much more common in horticultural varieties which favor monsters. Plant cells are totipotent and therefore in the center of the flower bud there are cells close to stem cells. Normally they are supposed to give petals; but under the effect of a pathogen, a length of day, rain or any other unforeseen event, these cells can give rise to any type of organ, or new plants in the case of this image. This originality of the plant world has been exploited to cultivate these tissues in vitro and to multiply a plant by cloning. Français : Ranunculus asiaticus. Evènement rare qui peut être naturel mais beaucoup plus fréquent dans les obtentions horticoles qui favorisent les monstres. Les cellules végétales sont totipotentes et donc au centre du bouton floral il existe cellules proche des cellules souches. Normalement elles qui sont censées donner des pétales; mais sous l'effet d'un pathogène, d'une longueur de jour, de la pluie ou tout autre imprévu, ces cellules peuvent donner n'importe quel type d'organe, ou de nouvelles plantes dans le cas ce l'image. Cette originalité du monde végétal a été exploité pour faire de la culture in vitro de ces tissus et multiplier une plante par clonage. |
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Place of discovery InfoField | ||||||||||||||||||||||||
Date | Taken on 11 February 2024 | |||||||||||||||||||||||
Collection |
institution QS:P195,Q422 |
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Source | Self-photographed | |||||||||||||||||||||||
Permission (Reusing this file) |
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Items portrayed in this file
depicts
some value
16 April 2023
0.03333333333333333333 second
20
105 millimetre
200
image/jpeg
484e811f51262b6d0caade0c876b1adb77b19306
14,440,457 byte
4,697 pixel
7,348 pixel
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:22, 16 February 2024 | 7,348 × 4,697 (13.77 MB) | Archaeodontosaurus | {{Information |Description= |Source={{own}} |Date= |Author= Archaeodontosaurus |Permission= |other_versions= }} |
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Image title |
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Camera manufacturer | NIKON CORPORATION |
Camera model | NIKON D850 |
Author | Didier Descouens |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/20 |
ISO speed rating | 200 |
Date and time of data generation | 11:28, 11 February 2024 |
Lens focal length | 105 mm |
Short title |
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Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop 25.5 (20240203.m.2489 2d36d5a) (Windows) |
File change date and time | 10:46, 11 February 2024 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 11:28, 11 February 2024 |
Shutter speed | 4.906891 |
APEX aperture | 8.643856 |
Exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 14 |
DateTimeOriginal subseconds | 14 |
DateTimeDigitized subseconds | 14 |
Color space | Uncalibrated |
Focal plane X resolution | 2,301.3246154785 |
Focal plane Y resolution | 2,301.3246154785 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 6017486 |
Lens used | 24.0-120.0 mm f/4.0 |
Rating (out of 5) | 0 |
Date metadata was last modified | 11:46, 11 February 2024 |
Unique ID of original document | EC012094AB254531AC8B9E26474B7F47 |
Keywords |
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