In septate fungi....?

Question

In septate fungi, what structures allow cytoplasmic streaming to distribute needed nutrients, synthesized compounds, and organells throughout the hypae:

Answer 1

That differs in the different fungal groups.  

In Ascomycetes, there is a large central pore that allows the materials to get through, but the mycelium also contains Woronin bodies that can block off the pores to prevent passage.

Some fungi have multiple smaller pores called micropores.

Basidiomycetes have a large central pore with swollen edges along the two sides of the septa and a perforated membrane surrounding the swellings.  These structures are called parenthosomes (sort of like reverse parentheses:  |-)  (-|  )  - just imagine there's a top and bottom to the set of parantheses that has pores in it.  This whole structure is called a dolipore.  Here's a diagram from the web, and so you get the right orientation, the mycelium would be running up and down with the septum running right to left:  http://images.search.yahoo.com/search/im...

Since you mention organelles, the Large central pore is probably the correct answer - the micropores and dolipores would be too small to allow organelles to pass through, although they allow the cytoplasm and nutrients to pass.