title: Uptake of diuron and concomitant loss of photosynthetic activity in leaves as visualized by imaging the red chlorophyll fluorescence.
abstract: The principles of the chlorophyll (Chl) fluorescence induction kinetics (known as Kautsky effect) and their change by the photosystem II herbicide diuron are presented together with the Chl fluorescence emission spectra of a normal and diuron-inhibited leaf. By imaging the Chl fluorescence emission of green leaves the successive uptake of diuron and the concomitant loss of photosynthetic quantum conversion from the leaf base to the leaf tip are documented.
authors.affiliation: Botanisches Institut (Physiology and Biochemistry of Plants), Karlsruhe Institute of Technology (KIT), University Division, Kaiserstr. 12, 76128, Karlsruhe, Germany, hartmut.lichtenthaler@kit.edu.
authors.forename: Hartmut K
authors.initials: HK
authors.lastname: Lichtenthaler
authors.forename: Gabriele
authors.initials: G
authors.lastname: Langsdorf
authors.forename: Claus
authors.initials: C
authors.lastname: Buschmann
mesh_terms: D002734:Chlorophyll / Q000378:metabolism*; D004070:Digitalis / Q000378:metabolism*; D004237:Diuron / Q000378:metabolism*; D007700:Kinetics; D061848:Optical Imaging; D027805:Phaseolus / Q000378:metabolism*; D010788:Photosynthesis; D045332:Photosystem II Protein Complex / Q000378:metabolism; D018515:Plant Leaves / Q000378:metabolism*; D013050:Spectrometry, Fluorescence; D013997:Time Factors
chemical_list: D045332:Photosystem II Protein Complex; D002734:Chlorophyll; D004237:Diuron