File:The perfect sphere.jpg
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Captions
Captions
Tobacco protoplast
Summary[edit]
| Description |
English: Protoplasts are plant cells deprived of the cell wall thanks to the combined action of the cellulase and pectinase enzymes. The protoplast in the photo, isolated from the foliar mesophyll of a tobacco plant (Nicotiana tabacum), takes on a spherical shape being devoid of the rigid wall but is still able to perform normal metabolic functions. Particular attention must be paid to the osmotic pressure of the culture medium which must be isotonic with the cellular environment to avoid protoplast rupture.
Protoplasts can be manipulated with different cellular and molecular engineering techniques. Through their fusion, for example, it is possible to obtain the so-called somatic and c-hybrid hybrids that are used in genetic improvement techniques. (Differential interference contrast optical microscope, 400 x). |
| Date | |
| Source | Own work |
| Author | Massimo Vischi |
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This image was uploaded as part of Wiki Science Competition 2019. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:11, 12 December 2019 | | 4,724 × 2,362 (1.99 MB) | Visma21 (talk | contribs) | User created page with UploadWizard |
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