File:Sporangium-Exposure-and-Spore-Release-in-the-Peruvian-Maidenhair-Fern-(Adiantum-peruvianum-pone.0138495.s008.ogv

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Sporangium-Exposure-and-Spore-Release-in-the-Peruvian-Maidenhair-Fern-(Adiantum-peruvianum-pone.0138495.s008.ogv ‎(Ogg Theora video file, length 13 s, 704 × 160 pixels, 296 kbps, file size: 472 KB)

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Description
English: Annulus relaxation and spore ejection, recorded with 100.000 fps. For better visibility, the original movie with a resolution of 140 x 32 pixels was digitally enlarged without interpolation. Furthermore, we added a timescale and chose a very slow playback frame rate in the second part of the video for a better understanding of when the first, very fast annulus relaxation step has ended (at t = 40 μs, the vast majority of spores emerge from the apical cup). The sporangium was gripped with tweezers (MOV, 20 fps, 700 x 160 pixels, 946 KB).
Date
Source S7 Video from Poppinga S, Haushahn T, Warnke M, Masselter T, Speck T (2015). "Sporangium Exposure and Spore Release in the Peruvian Maidenhair Fern (Adiantum peruvianum, Pteridaceae)". PLOS ONE. DOI:10.1371/journal.pone.0138495. PMID 26444002. PMC: 4596474.
Author Poppinga S, Haushahn T, Warnke M, Masselter T, Speck T
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This file is licensed under the Creative Commons Attribution 4.0 International license.
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  • 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.
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This file was transferred to Wikimedia Commons from PubMed Central by way of the Open Access Media Importer.
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WikiProject Open Access

File history

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Date/TimeThumbnailDimensionsUserComment
current02:19, 23 October 201513 s, 704 × 160 (472 KB)Open Access Media Importer Bot (talk | contribs)Automatically uploaded media file from Open Access source. Please report problems or suggestions here.

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Transcode status

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Format Bitrate Download Status Encode time
VP9 360P 90 kbps Completed 08:50, 20 October 2018 4.0 s
Streaming 360p (VP9) Not ready Unknown status
VP9 240P 50 kbps Completed 08:49, 20 October 2018 4.0 s
Streaming 240p (VP9) 50 kbps Completed 16:47, 16 December 2023 0.0 s
WebM 360P 420 kbps Completed 02:19, 23 October 2015 5.0 s
Streaming 144p (MJPEG) 479 kbps Completed 22:59, 18 November 2023 1.0 s

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