We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Herbicides which inhibit photosystem II or produce chlorosis and their effect on production and transformation of pigments in etiolated radish seedlings (Raphanus sativus).
- Authors
Buschmann, Claus; Grumbach, Karl H.; Bach, Thomas J.
- Abstract
The herbicides DCMU, bentazon, amitrole, and SAN 6706 were tested for their ability to influence the carotenoid and protochlorophyll(ide) composition as well as the protochlorophyll(ide) phototransformation and the Shibata shift in dark-grown radish seedlings (Raphanus sativus L. cv. Saxa Treib). Bentazon enhanced the formation of lutein and carotenes, while SAN 6706 suppressed the biosynthesis of carotenoids. Amitrole led to a reduced accumulation of phototransformable protochlorophyll(ide). The phototransformation of protochlorophyll(ide) and the Shibata shift were not affected by any of the tested herbicides, irrespective of the presence or absence of activated phytochrome. From this we conclude that herbicides inhibiting photosystem II or producing chlorosis partly affect, but do not block, carotenoid and chlorophyll biosynthesis in dark-grown plants. The main herbicide effect becomes visible only after prolonged illumination.
- Subjects
CHLOROSIS (Plants); DEFICIENCY diseases; CAROTENOIDS; PLANT photomorphogenesis; PHOTOSYNTHETIC pigments; CHLOROPLAST pigments; PLANTS
- Publication
Physiologia Plantarum, 1980, Vol 49, Issue 4, p455
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1980.tb03334.x