In the Company of Microbes. Moselio Schaechter
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perspective on the manuscript, the status of the field of synthetic biology, and its regulation. A number of ASM members, including myself, gave expert opinions in newspapers, on the radio, and on TV. President Obama requested his Presidential Commission for the Study of Bioethical Issues to undertake a study of the implications of this scientific research and other advances that may lie ahead in this field. I will testify at the first Commission hearing on July 8 (day +8 of my term—at last we’re into positive numbers!). I feel well equipped to represent us. Last year I was the organizer and chair of the National Academies of Sciences Keck Futures Conference on Synthetic Biology. I continue to learn about new developments in the field, and I am expertly advised by our PSAB staff, our new PSAB Chair Roberto Kolter, and other knowledgeable ASM members. My specific role is to compare and contrast the engineering perspective with that of the biological and genetic sciences, and to explain how approaches represented by synthetic biology differ from other approaches to biological manipulation. I will also address what has been accomplished and what is likely to be accomplished in this field and what I think are important obstacles to the advancement of synthetic biology.
May you find what you are seeking: Over this past year (day –365 to day 0) as president-elect, I got to know the Society inside and out. I learned what remarkable accomplishments 40,000 volunteers can achieve. I saw our members donate huge blocks of time for the good of our discipline and the health of our planet. I became fully convinced that collectively we have the potential and the expertise to make the world healthier, to enable a sustainable relationship with our environment, and to ensure the promise and prominence of science and technology in our culture. It has been a magical and eye-opening year. I am beginning to understand the vast breadth and depth of this organization and the position of its members in leading the nation and the world in all in matters touched by microbes.
There’s nothing like a few ominous curses to get the blood flowing. I am eagerly looking forward to this coming year with the hope that I can make significant contributions to the ASM and to our community at large. I will do my best to further enhance our reputation in public policy, education, outreach, and scientific advancement. Now at day +1 and counting, I look forward to meeting you!
We have a tradition of hosting a few reflections from the incoming president of the ASM.
Bonnie Bassler is the Squibb Professor of Molecular Biology at Princeton University and a Howard Hughes Medical Institute Investigator. She is a fellow of the American Academy of Microbiology and a member of both the National Academy of Sciences and the American Academy of Arts and Sciences.
July 1, 2010
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#86
by Elio
Given that so many kinds of bacteria are intimately associated with animals and plants, why are so relatively few pathogenic?
April 12, 2012
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The View from Here: The Evolution of the Genetic Code
by Charles Yanofsky
Although the genetic code is well established, a very exciting unsolved problem is discovering how codons were related to amino acids in the evolution of protein synthesis. How did a tRNA and a tRNA synthetase first evolve, and what was their ancestral source? How were the genes for the first tRNA and tRNA synthetase duplicated, and how was their specificity varied? Can we offer any explanation for why there are two classes of tRNA synthetases? Can one predict which tRNAs evolved from one another? Similarly, can we predict which tRNA synthetases evolved from an existing tRNA synthetase?
A related series of exciting experiments would be to attempt to reproduce some evolutionary events and determine how many mutational changes it would take—and where—to evolve a tRNA synthetase with new specificity from an existing synthetase. Suppression studies many years ago showed that tRNAs may acquire new decoding specificity following single mutational changes, but synthetase suppressors were not recovered, as I recall. Also, we now know that synthetases recognize both the anticodon and acceptor end sequence of each tRNA. Is this consistent with what is known about suppressing tRNAs?
Reference
Carter CW Jr. 2008. Whence the genetic code? Thawing the ‘Frozen Accident’. Heredity 100:339–340.
Charles Yanofsky is Professor Emeritus of Biological Sciences at Stanford University and a 2003 recipient of the National Medal of Science.
May 8, 2008
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#19
by Elio
You are stranded on a desert island. During a walk on the beach, you stub your toe against a bottle, which rolls against a rock and breaks. A genie is liberated, eager to grant you one wish. You ask for a microbiological laboratory fully equipped to your specifications. The genie grants you that but with the condition that you can study only one sample. What sample would you collect for study, what would you do with it, and why?
July 8, 2007
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3
Microbes Touch Everything
By Tim Donohue
As I wheeled my bag away from the Convention Center in New Orleans after the 115th General Meeting, I noticed its ASM luggage tag, which states “Microbes Touch Everything.” This simple line is a perfect summary of the importance of the microbial sciences and the core mission of ASM to promote and advance this field. In history there are many examples of times when the right confluence of people and technology has led to events that rapidly push back frontiers. Two examples, one old, one of our time—Leeuwenhoek seeing animalcules through his lens and the elucidation of the structure of DNA and the genetic code—both transformed science and opened new fields of exploration. The microbial sciences are now poised to enter a renaissance that is based on interdisciplinary approaches and new technologies.
In order to take advantage of this scientific moment, we must reach out to our colleagues in other fields. At the General Meeting I heard many talks that highlighted the importance of bringing new scientific disciplines into the microbial sciences. Du-ring his opening lecture, Pieter Dorrestein shared his exciting work to understand the activities of microbial communities using mass spectrometry. He began and ended his talk by noting that he is a chemist, but that his work is in the microbial sciences. Minyoung Chun of the Kavli Foundation reflected on the foundation’s interest in microbiology during the president’s lecture. She noted that Kavli has historically funded researchers focused on astronomy, nanoscience, and neuroscience. In the past year they have held a series of symposia focused on the microbiome because they repeatedly heard from their physical scientists that microbiology is one of the most exciting new frontiers and thus is worth exploring. From looking for alien life to connecting the brain to the gut microbiome, microbiologists are now involved in a huge number of other fields. Clearly, our attention to interdisciplinary science must continue to grow.
Parallel to the expansion into the microbial sciences of traditionally separate