Class Notes (835,432)
Canada (509,186)
Biology (38)
BIOL-2152 (12)
Lecture

Myxomycota (Slime Molds)

2 Pages
124 Views
Unlock Document

Department
Biology
Course
BIOL-2152
Professor
Kent Simmons
Semester
Winter

Description
MYXOMYCOTA  Plasmodial slime molds No real parasitic forms  Heterotrophic  Abundant in temperate forests  Plasmodial stage is found in cool, shady, moist places on rotting logs, leaf litter and moist shaded  soil  Plasmodia: naked network of protoplasm, engulfing decaying organic matter, bacteria, protozoa  and other organisns,  Veins: transfer materials. Density can be changed by adding proteins. Increase cytoplasm density  that forms hollow tubes.  Coenocytic: single massive multinucleate cell  Cyclosis: cytoplasmic streaming  Synchronous nuclei division: all in the same stage of mitosis at the same time. Valuable cell biology  tool. All closed mitosis in the plasmodial stage. Spindle apparatus inside the nuclear envelope  Mitosis in the amoeboid stages is open mitosis  3 different types of plasmodia recognized  phaneroplasmodium: conspicuous protoplasmic veins with shuttle stream. Leaves behind a trace  as the plasmodium creeps over the surface. Slime left behind becomes part of the aggregates for  soils  aphaneroplasmodium: nongranular and very transparent. No slime sheath protopasmodium: most primitive. Smallest.  Sclerotium: unfavourable conditions of moisture and nutrition, a hard dormant body. Nuclei within  the protoplasm aggregate and form cell walls around themselves (spherules: uni/multinucleate  macrocytes)  Virtually inanimate  Sexual reprudction: sporophores. Spore format
More Less

Related notes for BIOL-2152

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit