Class Notes (808,126)
United States (312,917)
Genetics (140)
01:447:390 (34)
Lecture 22

01:447:390 Lecture 22: Our Microbial Planet

2 Pages
Unlock Document

Rutgers University
Dr.Anne Keating

Our Microbial Planet Monday, May 1, 2017 9:47 AM I. Gaia hypothesis A. James Lovelack -1970s • Earth is living organism , maintains conditions suitable for life • Earth behaves like a superorganism B. Controversial spectrum of hypothesis • Organisms on earth have radically altered its composition • Earth's biosphere acts as if it is a self-organizing system -> system kept in equilibrium • Entire earth is a single, unified organism 1. Biosphere consciously manipulating climate in order to make conditions more conductive of life C. Self- regulating system • Organic and inorganic components of earth have evolved together -> single living , self regulating system • Factors controlled for ex. Global temp , atmospheric control, ocean salinity • Earth -> individual • Evidence ? 1. Luminosity of sun has increased by about 30% since life began on earth Living system has reacted to maintain temp at levels suitable for life Computer stimulations -> controversial 2. Cloud formation over open ocean a. Phytoplantkton - microscopic algae in upper ocean water b. Some species synthesize DMSP dimethyl sulfanic propionate -> protect from freezing and high salinity Phytoplankton cells -> release DM SP into water c. DMSP -
More Less

Related notes for 01:447:390

Log In


Don't have an account?

Join OneClass

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

Sign up

Join to view


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.