NDLI: Comparative investigation of the appearance of primary chlorophyllide forms in etiolated leaves, prolamellar bodies and prothylakoids

Content Provider	Springer Nature Link
Author	Belyaeva, Olga Sundqvist, Christer
Copyright Year	1998
Abstract	A comparative investigation of the first steps of chlorophyllide formation from protochlorophyllide in the etiolated leaves, prolamellar bodies and prothylakoids was performed by measuring fluorescence emission spectra. It was shown that the formation of the first fluorescent chlorophyllide forms from non-fluorescent intermediates is a complex process including several dark reactions with different temperature dependencies. When the temperature of samples which had been illuminated at 77 K was increased to 190 K, four primary chlorophyllide forms were found by Gaussian deconvolution of the 77 K emission spectra. They had fluorescence emission maxima at 690, 696, 684 and 706 nm, respectively. Two new forms of chlorophyllide - Chlide690 and Chlide706 - were found in addition to the major known forms. A prolonged exposure to 190 K as well as rise of the temperature to 253 K led to a disappearance of Chlide690. The fate of this form is not clear. Chlide696 and Chlide706 were transformed into Chld673 and Chld684, respectively, during the prolonged dark exposure at 253 K. The existence of two pathways of native short wavelength chlorophyllide forms formation was proposed with different temperature dependencies.
Starting Page	41
Ending Page	48
Page Count	8
File Format	PDF
ISSN	01668595
Journal	Photosynthesis Research
Volume Number	55
Issue Number	1
e-ISSN	15735079
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1998-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Plant Science Medicine Biochemistry

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