Walker, Spike (2021). CIL:41737, Micrasterias denticulata. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0FF3R7B

Differential interference contrast micrograph of a Micrasterias, a type of green alga called a desmid. Each cell is constructed of two semicells which are mirror images of each other. The two semicells are joined by a narrow central bridge, or isthmus, containing the nucleus. Each semicell contains a single chloroplast. Micrasterias can reproduce asexually by binary fission (resulting in two separate cells, each of which has one of the parent's semicells and one new semicell). During this process, genetic material is duplicated and two new semicells grow between the original semicells. Micrasterias can also reproduce sexually through a process known as conjugation, which involves the transfer of genetic material between two cells. Wellcome Image Award 2012.

• 2021

• Walker, Spike

2011 Collection: Wellcome Images Copyrighted work available under Creative Commons by-nc-nd 2.0 UK: England & Wales, see http://images.wellcome.ac.uk/indexplus/page/Prices.html

Relation to intact cell: whole mounted tissue
Item type: recorded image
Imaging mode: differential interference contrast microscopy
Parameter imaged: optical path length gradient
Source of contrast: boundaries between regions with different refractive index

• Micrasterias denticulata

• Isthmus
• Nucleus
• Semicell

• Binary fission
• Chloroplast localization
• Conjugation

• data
• image

• No linguistic content; Not applicable

Samplenumber: 41737

Doi: https://doi.org/10.6075/J0FF3R7B

Source data

• Source Record in the Cell Image Library: https://doi.org/10.7295/W9CIL41737

Other resource

• Wellcome Collection Images (B0008453): https://wellcomecollection.org/works

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License

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2022-08-12