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ASM Attends UN General Assembly

ASM President, Susan Sharp, Ph.D., joined global leaders at the United Nations General Assembly in New York today in a historical meeting to focus on the commitment to fight AMR.

UN General Assembly Focuses on AMR

Leaders at the UN General Assembly draft a plan for coordinated, cross-cutting efforts to improve the current state of AMR.

Superbugs are a 'Fundamental Threat'

If antibiotics were telephones, we would still be calling each other using clunky rotary dials and copper lines," Stefano Bertuzzi, CEO of ASM, told NBC News.
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Antibacterial Development Conference


By visiting three stations, each equipped with microscopes, slides, live materials and various supplies arranged by the teacher, the students will observe three symbiotic relationships involving microbes.  The students prepare wet mounts to observe the microbial symbionts found in the termite gut, lichen, and Rhizobium root nodules.

Intended Audience 

5-8 X
9-12 X


Learning Objectives

By completing this activity, the student will be able to:
  1. Describe different types of symbiotic relationships.
  2. Identify three mutually symbiotic relationships involving a microbe and another microbe, an animal or a plant. 
  3. Describe the microbial symbionts in the termite gut, a lichen, and a legume.
  4. Identify how these symbiotic relationships benefit both partners.
  5. Transfer and apply the principles presented in this activity to other examples of symbiosis.
  6. Prepare a wet mount slide of termite hindgut to observe endosymbionts.
  7. Use the squash technique to prepare lichen and root nodules.

Necessary Student Background

None required.


Ecology; Microbial Ecology, Endosymbiosis, Evolution, Microbial Interactions

Print a PDF of this activity

“I Can’t Live Without You!” A Close-up Examination of Microorganisms Involved in Mutually Beneficial Symbiotic Relationships (19 pages)