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Phytochrome Distribution in Johnsongrass Rhizomes

Published online by Cambridge University Press:  12 June 2017

S.O. Duke  and
R.D. Williams
S.O. Duke
Affiliation:
South. Weed Sci. Lab., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
R.D. Williams
Affiliation:
South. Weed Sci. Lab., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
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Abstract

Phytochrome was assayed in vivo in the rhizomes of 12 to 14-week old johnsongrass [Sorghum halapense (L.) Pers.] plants. The phytochrome levels decreased basipetally from the apex through the eighth node. The decrease was logarithmic on a dry weight basis, but less rapid on a per segment basis. On a dry weight basis, higher phytochrome measurements were obtained with samples from the interior of the rhizome than from the external regions. The far-red absorbing form of phytochrome (Pfr) was shown to be very labile at 25 C in johnsongrass rhizomes. These results provide a basis for examining photomorphogenic responses of rhizomes to light and for correlating these responses to phytochrome photophysiology.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 3 , May 1977 , pp. 229 - 232
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

Literature Cited

1. Briggs, W.R. and Siegelman, H.W. 1965. Distribution of phytochrome in etiolated seedlings. Plant Physiol. 40:934–941.CrossRefGoogle ScholarPubMed
2. Butler, W.L., Norris, K.H., Seigelman, H.W., and Hendricks, S.B. 1959. Detection, assay, and preliminary purification of the pigment controlling photoresponsive development of plants. Proc. Nat. Acad. Sci. U.S.A. 45:1703–1708.CrossRefGoogle ScholarPubMed
3. Butler, W.L. 1972. Photochemical properties of phytochrome in vivo. Pages 185–192 in Phytochrome. Mitrakos, K. and Shropshire, W. Jr., eds. Academic Press, New York.Google Scholar
4. Correll, D.L., Edwards, J.L., and Medina, V.J. 1968. Phytochrome distribution in etiolated rye II. Distribution of photoreversible phytochrome in the coleoptile and primary leaf. Planta 70:284–291.CrossRefGoogle Scholar
5. Frankland, B. 1972. Biosynthesis and dark transformations of phytochrome. Pages 195–225 in Phytochrome. Mitrakos, K. and Shropshire, W. Jr., eds. Academic Press, New York.Google Scholar
6. Furuya, M. and Hillman, W.S. 1964. Observations on spectrophotometrically assayble phytochrome in vivo in etiolated Pisum seedlings. Planta 63:31–42.Google Scholar
7. Holm, L. 1969. Weed problems in developing countries. Weed Sci. 17:113–118.CrossRefGoogle Scholar
8. Kondo, N., Inoue, Y., and Shibata, K. 1973. Phytochrome distribution in Avena seedlings measured by scanning a single seedling. Plant Sci. Lett. 1:165–168.Google Scholar
9. Koukkari, W.L. and Hillman, W.S. 1966. Phytochrome levels assayed by in vivo spectrophotometry in modified underground stems and storage roots. Physiol. Plant. 19:1073–1078.Google Scholar
10. McWhorter, C.G. 1971. Anatomy of johnsongrass. Weed Sci. 19:385–393.Google Scholar
11. Pratt, L.H. and Coleman, R.A. 1971. Immunocytological localization of phytochrome. Proc. Nat. Acad. Sci. U.S.A. 68:2431–2435.Google Scholar
12. Pratt, L.H. and Coleman, R.A. 1974. Phytochrome distribution in etiolated grass seedlings as assayed by an indirect antibodylabelling method. Am. J. Bot. 61:195–202.CrossRefGoogle Scholar