2,4-D resistance in wild radish reduced herbicide translocation via inhibition of cellular transport

2,4-D resistance in wild radish : reduced herbicide translocation via inhibition of cellular transport

© The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 67(2016), 11 vom: 15. Mai, Seite 3223-35
1. Verfasser: Goggin, Danica E (VerfasserIn)
Weitere Verfasser: Cawthray, Gregory R, Powles, Stephen B
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't ABCB transporters Brassicaceae auxin mimics herbicide resistance translocation weeds. Herbicides 2,4-Dichlorophenoxyacetic Acid 2577AQ9262
Beschreibung
Zusammenfassung:© The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.
Resistance to auxinic herbicides is increasing in a range of dicotyledonous weed species, but in most cases the biochemical mechanism of resistance is unknown. Using (14)C-labelled herbicide, the mechanism of resistance to 2,4-dichlorophenoxyacetic acid (2,4-D) in two wild radish (Raphanus raphanistrum L.) populations was identified as an inability to translocate 2,4-D out of the treated leaf. Although 2,4-D was metabolized in wild radish, and in a different manner to the well-characterized crop species wheat and bean, there was no difference in metabolism between the susceptible and resistant populations. Reduced translocation of 2,4-D in the latter was also not due to sequestration of the herbicide, or to reduced uptake by the leaf epidermis or mesophyll cells. Application of auxin efflux or ABCB transporter inhibitors to 2,4-D-susceptible plants caused a mimicking of the reduced-translocation resistance phenotype, suggesting that 2,4-D resistance in the populations under investigation could be due to an alteration in the activity of a plasma membrane ABCB-type auxin transporter responsible for facilitating long-distance transport of 2,4-D
Beschreibung:Date Completed 20.12.2017
Date Revised 25.03.2024
published: Print-Electronic
CommentIn: J Exp Bot. 2016 May;67(11):3177-9. - PMID 27241489
Citation Status MEDLINE
ISSN:1460-2431
DOI:10.1093/jxb/erw120