What is a stromule?

Q: What is a stromule?


A: A stromule is a microscopic structure found in plant cells that extends from the surface of all plastids, including chloroplasts.

Q: When were protrusions from and interconnections between plastids first observed?


A: Protrusions from and interconnections between plastids were seen in 1888 and 1908.

Q: When were stromules rediscovered?


A: Stromules were recently rediscovered in 1997.

Q: In which plant species do stromules exist?


A: Stromules exist in a number of angiosperm species including Arabidopsis thaliana, wheat, rice and tomato.

Q: Are the roles of stromules in plant cells fully understood?


A: No, the roles of stromules in plant cells are not yet fully understood.

Q: What are stromules made of?


A: Stromules are made of stroma-filled tubules.

Q: Are stromules static or dynamic structures?


A: Stromules are highly dynamic structures.

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