oxygen bubbles from photosynthesis

David R. Hershey dh321 at PGSTUMAIL.PG.CC.MD.US
Wed May 28 11:27:08 EST 1997

Wisconsin fast plants work well as detailed in the Wisconsin Fast Plant
Manual (Carolina Biological Supply) which uses 5-ml syringes to apply a
vacuum. I have had success with coleus, which is useful to compare green
and nongreen leaf disks. 

David R. Hershey

Snail mail: 6700 Belcrest Road #112, Hyattsville, MD 20782-1340

Adjunct Professor, Biology/Horticulture Dept.
Prince George's Community College, Largo, MD 20772-2199

Email: dh321 at pgstumail.pg.cc.md.us


On 27 May 1997, nb2 wrote:

>         In our freshman nonmajors course we measure photosynthesis by timing
> the rise of vacuum-infiltrated spinach leaf disks on oxygen bubbles
> generated in the light.  Spinach from the supermarket works slowly, spinach
> we grow in the greenhouse works much faster, but we can only grow it in the
> fall because of bolting.  Does anyone know of another species that works as
> well as spinach?
>                                                 Neal Barnett
> Email:Neal_M_BARNETT at umail.umd.edu (nb2)
> Phone:51638

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