Red Pigments of Dactynotus rudbeckiae and D. ambrosiae[Homoptera, Aphididae]

Abstract

THE extensive investigations of Lord Todd and his colleagues1 have shown that several related perylene-quinone pigments, the erythroaphins (Fig. 1), can be obtained from many aphid species; the two most completely investigated representatives, the erythroaphins fb and sl, are stereoisomers of the formula C30H22O8. These pigments, however, are not present in the live insect, but are formed through post-mortem enzymatic transformations of yellow precursors, the protoaphins, which do not contain the perylene nucleus1a. In the course of research on naturally occurring perylenequinones2, we have investigated the pigments of two bright red species of-the aphid genus Dactynotus, since it seemed possible that their colour might be due to preformed perylenequinones. Earlier, Todd et al.3 had observed the occurrence of very small amounts of aphin pigments in D.jaceae; D. cirsii, however, was found to contain instead a red pigment which has not been described in detail but which, from its uncharacteristic absorption spectrum, is not a perylenequinone.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    (a) Lord Todd, Experientia, 18, 433 (1962). (b) Cameron, D. W., Kingston, D. G. I., Sheppard, N., and Lord Todd, J. Chem. Soc., 98 (1964) and earlier papers.

  2. 2

    Batterham, T. J., and Weiss, U., Proc. Chem. Soc., 89 (1963). Weiss, U., et al., Canad. J. Microbiol., 11, 57 (1965).

  3. 3

    Duewell, H., Human, J. P. E., Johnson, A. W., MacDonald, S. F., and Todd, A. R., J. Chem. Soc., 3304 (1950).

  4. 4

    Palmer, L. S., and Knight, H. H., J. Biol. Chem., 59, 451 (1924).

  5. 5

    Roberts, J. C., and Warren, C. W. H., J. Chem. Soc., 2992 (1955).

  6. 6

    Cameron, D. W., Cromartie, R. I. T., Hamied, Y. K., Scott, P. M., Sheppard, N., and Lord Todd, J. Chem. Soc., 90 (1964).

  7. 7

    Barlow, J. S., Canad. J. Biochem., 42, 1365 (1964).

  8. 8

    Strong, F. E., Hilgardia, 34, 43 (1963).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

WEISS, U., ALTLAND, H. Red Pigments of Dactynotus rudbeckiae and D. ambrosiae[Homoptera, Aphididae]. Nature 207, 1295–1297 (1965). https://doi.org/10.1038/2071295b0

Download citation

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.