Excellent wavelength-dependence of laser-induced delayed light-emission from mesophyll and bundle-sheath cells of maize.
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ABSTRACT: Mesophyll and bundle-sheath cells from maize (Zea mays) were examined for delayed light-emission. An enzymic procedure was used to isolate the mesophyll and bundle-sheath cells. A tunable dye laser was used at 695-720 nm to excite delayed light-emission. The mesophyll cells show a typical Photosystem-II dependence on excitation wavelength for delayed light-emission, and this emission was eliminated by hydroxylamine and 3-(3,4-dichlorophenyl)-1,1-dimethylurea. The bundle-sheath cells show no delayed light-emission with these excitation wavelengths. Photosystem-I emission was not observed from either cell type, there being no effect of Methyl Viologen on the observed signals.
SUBMITTER: Ross DA
PROVIDER: S-EPMC1158599 | biostudies-other | 1982 Aug
REPOSITORIES: biostudies-other
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