Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Research Paper
  • Published:

Applications of Imaging Spectroscopy in Molecular Biology: I. Screening Photosynthetic Bacteria

Abstract

We have developed an imaging spectrophotometer that combines the spatial-resolving properties of a video camera with the wavelength-resolving properties of a spectrophotometer. This instrument is especially useful for screening photosynthetic bacteria, since hundreds of colonies may be analyzed simultaneously through the chromophoric properties of the photosynthetic pigments. Enhanced fluorescence mutants (possessing defective photosynthetic reaction centers) can be imaged in realtime using a silicon target camera. Mutant screening is further facilitated through imaging spectroscopy, wherein images obtained at specific wavelengths are mixed to generate pseudo images of the colonies. Digital image processing techniques can then be used to highlight distinguishing spectroscopic features of the colonies. Future applications of imaging spectroscopy to other areas of molecular biology are discussed.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Lillesand, T.M. and Kiefer, R.W. 1987. Remote Sensing and Image Interpretation. John Wiley & Sons, New York, NY.

    Google Scholar 

  2. National Aeronautics and Space Administration. 1987. HIRIS—High-Resolution Imaging Spectrometer: Science Opportunities for the 1990s: Earth Observing System. Volume IIc.

  3. Fabry, C. and Perot, A. 1899. Theorie et applications d'une nouvelle methode de spectroscopie interferentielle. Ann. Chim. Phys., Paris 7th series 16:115–144.

    CAS  Google Scholar 

  4. Macleod, H.A. 1986. Thin-Film Optical Filters. Macmillan Publishing Company, New York, NY.

    Book  Google Scholar 

  5. Youvan, D.C. and Marrs, B.L. 1984. Molecular genetics and the light reactions of photosynthesis. Cell. 39:1–3.

    Article  CAS  Google Scholar 

  6. Youvan, D.C. and Marrs, B.L. 1987. Molecular mechanisms of photosynthesis. Scientific American. June:42–48.

    Article  Google Scholar 

  7. Youvan, D.C., Hearst, J.E. and Marrs, B.L. 1983. Isolation and characterization of enhanced fluorescence mutants of Rhodopseudomonas capsulata. J. Bacteriol. 154:748–755.

    CAS  PubMed  PubMed Central  Google Scholar 

  8. Youvan, D.C. and Bylina, E.J. 1988. Photosynthesis in Rhodospmllaceae. In: Genetics of Bacterial Diversity. Hopwood, D. A. and Chater, K. F., (Eds. ). Academic Press, New York, NY. In press.

    Google Scholar 

  9. Scolnik, P.A., Walker, M.A. and Marrs, B.L. 1980. Biosynthesis of carotenoids derived from neurosporene in Rhodopseudomonas capsulata. J. Biol. Chem. 155:2427–2432.

    Google Scholar 

  10. Youvan, D.C., Ismail, S. and Bylina, E.J. 1985. Chromosomal deletion and plasmid complementation of the photosynthetic reaction center and light-harvesting genes from Rhodopseudomonas capsulata. Gene 38:19–30.

    Article  CAS  Google Scholar 

  11. Bylina, E.J., Ismail, S. and Youvan, D.C. 1986. Site-specific mutagen-esis of bacteriochlorophyll-binding sites affects biogenesis of the photosynthetic apparatus. In: Microbial Energy Transduction: Genetics, Structure, and Function of Membrane Proteins. Youvan, D. C. and Daldal, F.(Ed.). Cold Spring Harbor Laboratory, Cold Spring Harbor, NY.

    Google Scholar 

  12. Bylina, E.J. and Youvan, D.C. 1987. Genetic engineering of herbicide resistance: Saturation mutagenesis of isoleucine 229 of the reaction center L subunit. Z. Naturforsch. 42c:769–774.

    Article  Google Scholar 

  13. Bylina, E.J. and Youvan, D.C. 1988. Directed mutations affecting spectroscopie and electron transfer properties of the primary donor in the photosynthetic reaction center. Proc. Natl. Acad. Sci. USA. In Press.

  14. Davidson, E., Prince, R.C., Daldal, F., Hauska, G. and Marrs, B.L. 1987. Rhodobacter capsulatus MT113: A single mutation results in the absence of c-type cytochromes and in the absence of the cytochrome bc1 complex. Biochem. Biophys. Acta. 890:292–301.

    CAS  Google Scholar 

  15. Zuber, H. 1986. Structure of light-harvesting antenna complexes of photosynthetic bacteria, cyanobacteria and red algae. TIBS 4:414–419.

    Google Scholar 

  16. Yang, M. and Youvan, D.C. Application of imaging spectroscopy in molecular biology. II. Enhancing gel electrophoresis bands with kernels and visualizing fluorescent dideoxy-terminators. In preparation.

  17. Prober, J.M., Trainor, G.L., Dam, R.J., Hobbs, F.W., Robertson, C.W., Zagursky, R.J., Cocuzza, A.J., Jensen, M.A. and Baumeister, K. 1987. A system for rapid DNA sequencing with fluorescent chain-terminating dideoxynucleotides. Science. 238:336–341.

    Article  CAS  Google Scholar 

  18. Yen, H-C. and Marrs, B. 1977. Growth of Rhodopseudomonas capsulata under anaerobic dark conditions with dimethyl sulfoxide. Arch. Biochem. and Biophys. 181:411–418.

    Article  CAS  Google Scholar 

  19. Gonzalez, R.C. and Wintz, P. 1987. Digital Image Processing. Addison-Wesley Publishing Co., Inc., Reading, MA.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Yang, M., Youvan, D. Applications of Imaging Spectroscopy in Molecular Biology: I. Screening Photosynthetic Bacteria. Nat Biotechnol 6, 939–942 (1988). https://doi.org/10.1038/nbt0888-939

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1038/nbt0888-939

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing