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Dynamics of the Neoproterozoic carbon cycle.
Rothman DH, Hayes JM, Summons RE. Rothman DH, et al. Among authors: summons re. Proc Natl Acad Sci U S A. 2003 Jul 8;100(14):8124-9. doi: 10.1073/pnas.0832439100. Epub 2003 Jun 24. Proc Natl Acad Sci U S A. 2003. PMID: 12824461 Free PMC article.
Biosynthesis of 2-methylbacteriohopanepolyols by an anoxygenic phototroph.
Rashby SE, Sessions AL, Summons RE, Newman DK. Rashby SE, et al. Among authors: summons re. Proc Natl Acad Sci U S A. 2007 Sep 18;104(38):15099-104. doi: 10.1073/pnas.0704912104. Epub 2007 Sep 11. Proc Natl Acad Sci U S A. 2007. PMID: 17848515 Free PMC article.
Sterols in a unicellular relative of the metazoans.
Kodner RB, Summons RE, Pearson A, King N, Knoll AH. Kodner RB, et al. Among authors: summons re. Proc Natl Acad Sci U S A. 2008 Jul 22;105(29):9897-902. doi: 10.1073/pnas.0803975105. Epub 2008 Jul 15. Proc Natl Acad Sci U S A. 2008. PMID: 18632573 Free PMC article.
Direct chemical evidence for eumelanin pigment from the Jurassic period.
Glass K, Ito S, Wilby PR, Sota T, Nakamura A, Bowers CR, Vinther J, Dutta S, Summons R, Briggs DE, Wakamatsu K, Simon JD. Glass K, et al. Proc Natl Acad Sci U S A. 2012 Jun 26;109(26):10218-23. doi: 10.1073/pnas.1118448109. Epub 2012 May 21. Proc Natl Acad Sci U S A. 2012. PMID: 22615359 Free PMC article.
169 results