Credit: SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY

Caption: Light microscopy of colonies of Volvox, a freshwater green alga. Each colony is a hollow sphere comprising a single layer of hundreds or thousands of cells, joined by a glycoprotein matrix. Each cell has two flagella, which are beaten in a co-ordinated fashion to propel the colony towards light, which is detected using eyespots. The colonies contain several daughter colonies, smaller spheres within the parent, which are produced asexually and released when large enough. Volvox colonies may reach around a millimetre in diameter. Filmed with differential interference contrast illumination.

Release details: Model release not required. Property release not required.

Keywords: alga, algae, aquatic, ball, balls, cell, cells, chlorophyte, chlorophytes, coenobium, colonial, colony, daughter, dic, differential interference contrast, flagellate, fresh, freshwater, globe, green, grey background, light micrograph, light microscope, lm, microscopy, multi-cellular, optical, organism, photosynthetic, plant, plants, pond life, sphere, spheres, spherical, under water, underwater, volvox, water

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.

Volvox colonies

K004/1978 Rights Managed

Downloadable master

Duration: 00:00:14.02

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 708.2M

Original

Capture format: Sony FS700

Codec: Apple ProRes 422 (HQ)

Please contact Science Photo Library if you require the original, or other formats.

 

Save watermarked comp

Request un-watermarked file

Price clip Pricing

Please login to use the price calculator