File:58. Движење на цитоплазма во прашнички конци на Tradescantia virginiana.ogv
Original file (Ogg multiplexed audio/video file, Theora/Vorbis, length 2 min 9 s, 1,920 × 1,080 pixels, 5.03 Mbps overall, file size: 77.64 MB)
Captions
Summary[edit]
Description58. Движење на цитоплазма во прашнички конци на Tradescantia virginiana.ogv |
English: Cytoplasmic streaming in threads of anthers of Tradescantia virginiana under microscope
Native, aqueous or temporary slides, as they are also called, are slides that last for a certain period of time and ordinary water is used for their preparation. They are easy and fast for preparation and do not require additional reagents, as well as are quite practical for observing certain structures under a microscope. The procedure for their preparation begins with the preparation of the object and cover glass, which should be wiped thoroughly. Two drops of water are placed on the object glass, one central large and one peripheral smaller. The flower is taken from Tradescantia sp. With tweezers, threads are detached from the filaments of the anthers and placed in the central drop of water. A cover glass is placed on it, which is lowered next to the peripheral drop of water and at an angle of 45° it moves towards the middle of the object glass until the moment when the two drops of water merge, during which it is lowered. This procedure needs to be performed precisely because otherwise air bubbles will form which will count during microscopy. In this way the native microscopic slide is prepared and it is ready for microscopy. Anthers are made up of a single string of cells. There are more vacuoles inside the cells, so the cytoplasm circulates through the vacuoles in the form of thin threads. This type of movement is called circulatory streaming or cyclosis. Prepared and performed by Sara Cvetanoska, Institute of Biology, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.Македонски: Движење на цитоплазма во прашнички конци на Tradescantia virginiana под микроскоп
Врз предметното стакленце се ставаат две капки вода, една средишна поголема и една странична помала капка вода. Се зема цветот од Tradescantia virginiana. Со пинцета се откинуваат прашнички конци од филаментите на прашниците и се ставаат во средишната капка вода. Се става покровно стакленце кое се спушта покрај страничната капка со вода и под агол од 45° се движи кон средината на предметното стакленце се до моментот кога ќе се спојат двете капки со вода, при што се спушта. Оваа постапка потребно е да се изведе прецизно затоа што во спротивно ќе се создадат воздушни меурчина кои ќе сметаат при микроскопирањето. На овој начин е подготвен нативниот микроскопски препарат и истиот е спремен за микроскопирање. Прашничките конци се изградени од една низа на клетки. Во внатрешноста на клетките се наоѓаат повеќе вакуоли, па цитоплазмата циркулира низ вакуолите во вид на тенки конци. Ваквиот тип на движење се вика кружно/циркулаторно движење или циклозис. Подготвено и изведено од Сара Цветаноска, Институт за биологија, ПМФ, УКИМ, Скопје. |
Date | |
Source | Own work |
Author | Deni Ingilizovski |
This biology experiment video was made within the Wikiexperiments 2022 set up by Shared Knowledge.
You can see all the videos in the category Biology Wikiexperiments. English | македонски | +/− |
Licensing[edit]
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 19:30, 15 November 2022 | 2 min 9 s, 1,920 × 1,080 (77.64 MB) | Dandarmkd (talk | contribs) | Uploaded own work with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following 2 pages use this file:
Transcode status
Update transcode statusFile usage on other wikis
The following other wikis use this file:
- Usage on meta.wikimedia.org
- Usage on mk.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Software used | |
---|---|
Language | eng |