Results 251 to 260 of about 13,690,399 (304)

Cofactor Requirement of the Enzymatic Reduction of Chlorophyll B to Chlorophyll A

1999
There is only little known about the formation and degradation of chlorophyll b (Chl b). Ito et al. [1] suggested a chlorophyll cycle, in which Chl b is converted to Chl a and vice versa. This chlorophyll cycle can be important for the plants: during acclimation from low light to high light conditions the Chl a to Chl b ratio increases [2].
V. Scheumann, S. Schoch, W. Rüdiger
openaire   +1 more source

On the enzymatic conversion of 14C-labeled chlorophyll a to 14C-labeled chlorophyll b

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1970
Abstract Through the addition of NADP + to homogenates of soybean leaves incubated in the dark at room temperature with uniformly 14 C-labeled chlorophyll a , significant yields of 14 C-labeled chlorophyll b (purified as pheophytin b ) were obtained.
R K, Ellsworth, H J, Perkins, J P, Detwiller, K, Liu   +3 more
openaire   +2 more sources

Quantification of chlorophyll a, chlorophyll b and pheopigments a in lake sediments through deconvolution of bulk UV–VIS absorption spectra

Journal of Paleolimnology, 2020
A. Sanchini, M. Grosjean
semanticscholar   +1 more source

Photodisaggregation of chlorophyll a and b dimers

Journal of the American Chemical Society, 1979
At room temperature, chlorophyll a (10/sup -4/M) in dry methylcyclohexane containing 0.01M methanol shows only the monomer peak at 661 nm. At -78/sup 0/C, it is partially converted to dimer, absorbing at 695 nm. Flash photolysis using a 30-ns ruby laser probe selectively excites and bleaches the dimer.
N. Periasamy, H. Linschitz
openaire   +1 more source

New chlorophyll-b forms in a chlorophyll-detergent photosynthetic model system

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1975
The absorption spectra of chlorophyll b in Triton X-100 micelles at room temperature are superpositions of components with absorption maxima at 640.8, 648.9, 659.5, 669.6, 682.1 and 695.7 nm, obtained from Gaussian analysis of the spectra. The last four forms strongly overlap the chlorophyll a forms of this system obtained with maxima at 659.3, 667.6 ...
openaire   +2 more sources

High temperature specifically affects the photoprotective responses of chlorophyll b-deficient wheat mutant lines

Photosynthesis Research, 2016
M. Brestič, M. Živčák, Kristyna Kunderlikova, S. Allakhverdiev   +3 more
semanticscholar   +1 more source

A NEW PROKARYOTE CONTAINING CHLOROPHYLL-A AND CHLOROPHYLL-B

Nature, 1986
Burger-Wiersma, T., Veenhuis, M., Korthals, H.J., Van de Wiel, C.C.M., Mur, L.R.   +4 more
openaire   +2 more sources

Predicting macroalgal pigments (chlorophyll a, chlorophyll b, chlorophyll a + b, carotenoids) in various environmental conditions using high-resolution hyperspectral spectroradiometers

, 2018
E. Vahtmäe, J. Kotta, H. Orav-Kotta, I. Kotta, M. Pärnoja, T. Kutser   +5 more
semanticscholar   +1 more source

Chlorophyll b in angiosperms: Functions in photosynthesis, signaling and ontogenetic regulation.

Journal of plant physiology, 2015
O. Voitsekhovskaja, E. V. Tyutereva
semanticscholar   +1 more source

On the role of chlorophyll b in ontogenetic adaptations of plants

Biology Bulletin Reviews, 2014
E. V. Tyutereva, A. Ivanova, O. Voitsekhovskaja   +2 more
semanticscholar   +1 more source