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Effect of sw26 and erythrosin-b on atpase activity and related processes in ricinus cotyledons and cucumber hypocotyls

Effect of sw26 and erythrosin-b on atpase activity and related processes in ricinus cotyledons and cucumber hypocotyls
Effect of sw26 and erythrosin-b on atpase activity and related processes in ricinus cotyledons and cucumber hypocotyls
The herbicide SW26 and erythrosin B (EB) both inhibited ATPase activity in microsomal and plasma membrane-enriched fractions isolated from Ricinus cotyledons and cucumber hypocotyls. Both inhibitors were more effective with the vanadate-sensitive plasma membrane fraction.
With intact tissues, EB was an effective inhibitor of both medium acidification and sucrose uptake by Ricinus cotyledons, whereas SW26 had no effect. EB was also a more effective inhihitor than SW26 of medium acidification and elongation growth by cucumber hypocotyls. Neither EB or SW26 affected tissue respiration.
Thus, these reagents are useful additions to the limited range of inhibitors available to investigate the function of proton-pumping ATPases using both isolated membrane fractions and intact tissues
0168-9452
1-5
Ball, J.H.
9f7ae497-4842-47ee-badc-22488202ec44
Williams, L.E.
79ee1856-3732-492b-8ac5-239749c85d9e
Hall, J.L.
24cd62e9-4050-4514-9446-5a03949007f4
Ball, J.H.
9f7ae497-4842-47ee-badc-22488202ec44
Williams, L.E.
79ee1856-3732-492b-8ac5-239749c85d9e
Hall, J.L.
24cd62e9-4050-4514-9446-5a03949007f4

Ball, J.H., Williams, L.E. and Hall, J.L. (1987) Effect of sw26 and erythrosin-b on atpase activity and related processes in ricinus cotyledons and cucumber hypocotyls. Plant Science, 52 (1-2), 1-5. (doi:10.1016/0168-9452(87)90097-5).

Record type: Article

Abstract

The herbicide SW26 and erythrosin B (EB) both inhibited ATPase activity in microsomal and plasma membrane-enriched fractions isolated from Ricinus cotyledons and cucumber hypocotyls. Both inhibitors were more effective with the vanadate-sensitive plasma membrane fraction.
With intact tissues, EB was an effective inhibitor of both medium acidification and sucrose uptake by Ricinus cotyledons, whereas SW26 had no effect. EB was also a more effective inhihitor than SW26 of medium acidification and elongation growth by cucumber hypocotyls. Neither EB or SW26 affected tissue respiration.
Thus, these reagents are useful additions to the limited range of inhibitors available to investigate the function of proton-pumping ATPases using both isolated membrane fractions and intact tissues

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Published date: 1987

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Local EPrints ID: 483167
URI: http://eprints.soton.ac.uk/id/eprint/483167
ISSN: 0168-9452
PURE UUID: 588baeea-4e2f-4b37-b422-eaa626a4297b

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Date deposited: 25 Oct 2023 17:10
Last modified: 17 Mar 2024 05:17

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Contributors

Author: J.H. Ball
Author: L.E. Williams
Author: J.L. Hall

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