Dennis Bittisnich wrote:
>> Dear Plant Ed people,
>> Could any one suggest some examples of tissues which display
> cytoplasmic streaming suitable for student observation... the best we know
> of is Tradescantia stamen hair cells but we are after other tissue types
> for a comparison.
>> Thanks
>> ********************
> Dr Dennis Bittisnich
> Education Officer
> Plant Science Centre
> RSBS
> Australian National University ph +61 6 249 2878
> GPO Box 475 fax +61 6 247 5896
> e-mail: dennis.bittisnich at anu.edu.au> WWW Site: http://biology.anu.edu.au/Groups/Plantsc/CRC.htm> Canberra ACT 2601
> AUSTRALIA
> ********************Dear Dennis,
I teach Botany lab at the University of Texas at Arlington, Texas. We usually use
leaves from the water plant, Elodea or onion bulb epidermis to demonstrate cytoplasmic
streaming. If you use Elodea, it's good to use the youngest leaves possible and look
toward the tip of the leaf, or the tissues may become too dense to see through. For the
onion epidermis, snap a "leaf" backwards and peel. This will usually net you a clear,
thin layer of epidermal tissue that when lightly stained with iodine is also quite good
at demonstrating the nucleus, nucleolus, cytoplasm and cell wall.
If you have any trouble with this, you can e-mail me at this address.
Good Luck,
Regina M. Huse
--
Buzz Huse
Euless, Texas, USA
The best things in life are prohibitively expensive.
