In:
Zeitschrift für Naturforschung C, Walter de Gruyter GmbH, Vol. 41, No. 7-8 ( 1986-8-1), p. 729-732
Abstract:
Dimethazone is a bleaching herbicide without any peroxidative activity. In addition to the inhibition of chlorophylls, carotenes, and xanthophylls, decreased formation of other prenyl lipids (phytol and α-tocopherol) can be observed in the presence of dimethazone. Application of this herbicide to pea plants results in the inhibition of longitudinal growth of the newly formed internodes which can be reversed by gibberellic acid. Apparently, dimethazone also decreases the endogenous gibberellin levels. As the formation of all the compounds assayed is inhibited to the same extent and as I 50 -values for chlorophyll and carotenoid biosynthesis are identical (about 10 µᴍ dimethazone), the various effects of dimethazone are explained by a single enzyme target in the terpenoid biosynthetic pathway between acetate and geranylgeranyl pyrophosphate.
Type of Medium:
Online Resource
ISSN:
1865-7125
,
0939-5075
DOI:
10.1515/znc-1986-7-812
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
1986
detail.hit.zdb_id:
2078107-6
SSG:
12
