Hyalodiscus rubicundus feeding on an algae
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Hyalodiscus rubicundus feeding on an algae
The next sequence shows how a cell of Hyalotheka dissilens is attacked by Hyalodiscus rubicundus.
Hyalodiscus rubicundus is a vampyrellid amoeboid which opens cells of algae and sucks their content, hence its name.
Hyalodiscus rubicundus penetrates the mucous layer around the algae.
The amoeba reaches the cell membrane of the algae and starts to open a cell. This process lasts for about 10 minutes.
Suddenly, within seconds, a large part of the cell content moves into the amoeba. This goes fast.
The next 15 minutes Hyalodiscus pulls all the remaining pieces of the chloroplast in its cytoplasm, piece by piece.
The job is done.
Hyalodiscus moves to the neighbouring cell and the process starts again.
16 minutes later the cell is open.
When Hyalodiscus is filled with food, it builds a digestive cyst.
After some days the amoeba (left, orange spot) leaves its cyst, leaving indigestible residue behind.
Holes made by Hyalodiscus in cell walls of Hyalotheka dissilens.
Hyalodiscus rubicundus is a vampyrellid amoeboid which opens cells of algae and sucks their content, hence its name.
Hyalodiscus rubicundus penetrates the mucous layer around the algae.
The amoeba reaches the cell membrane of the algae and starts to open a cell. This process lasts for about 10 minutes.
Suddenly, within seconds, a large part of the cell content moves into the amoeba. This goes fast.
The next 15 minutes Hyalodiscus pulls all the remaining pieces of the chloroplast in its cytoplasm, piece by piece.
The job is done.
Hyalodiscus moves to the neighbouring cell and the process starts again.
16 minutes later the cell is open.
When Hyalodiscus is filled with food, it builds a digestive cyst.
After some days the amoeba (left, orange spot) leaves its cyst, leaving indigestible residue behind.
Holes made by Hyalodiscus in cell walls of Hyalotheka dissilens.
Last edited by Ferry on Fri Nov 21, 2014 3:27 pm, edited 1 time in total.
Excellent shots Ferry ... brilliant sequence of events ... stills (in story board fashion) are sometimes better than video ...
I haven't ventured into Micro Photography but I could sit and watch these all day long ... very informative ...
I haven't ventured into Micro Photography but I could sit and watch these all day long ... very informative ...
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RiG II - 'Bamboo': Olympus CH Focus Block with Inverted Arca/Swiss | Canon 430 EX (x2) | Olympus T20 flash (x2) | Youngnuo YN-622C Wireless triggers (x3) | Ikea Jansjo 3W LED Lighting (x3)
Stepper Motor Focusing System (Helicon Remote)
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Thank you all!
@ Jörgen,
Look at www.arcella.nl/humidity-chambers where I explain how to keep wet mounts fresh and wet for many days. Essentially every mount or slide is a small culture and a lot of 'new' species come out of the debris, or cysts. It is the way I usually work, especially for observing small species.
@ Jörgen,
Look at www.arcella.nl/humidity-chambers where I explain how to keep wet mounts fresh and wet for many days. Essentially every mount or slide is a small culture and a lot of 'new' species come out of the debris, or cysts. It is the way I usually work, especially for observing small species.