Results 21 to 30 of about 424,712 (212)

The moss Bryum argenteum var. muticum Brid. is well adapted to cope with high light in continental Antarctica [PDF]

open access: yes, 2012
The net photosynthetic rate (NP), chlorophyll fluorescence, carotenoid content and chlorophyll content of the cosmopolitan moss Bryum argenteum were measured in the field at Botany Bay, southern Victoria Land, continental Antarctica (77°S).
Green, T.G. Allan   +5 more
core   +3 more sources

Proton-Electron Hyperfine Coupling Constants of the Chlorophyll a Cation Radical by ENDOR Spectroscopy [PDF]

open access: yes, 1977
In this paper we describe the assignment of the major coupling constants in monomer chlorophyll a cation free radical by ENDOR spectroscopy. To facilitate chemical manipulation methylpyrochlorophyllide a has been used as a stand-in, and a suite of six ...
Katz, J. J., Norris, J. R., Scheer, Hugo
core   +1 more source

The coloring mechanism of a novel golden variety in Populus deltoides based on the RGB color mode

open access: yesForestry Research, 2021
Compared to flower color and red leaf mutants, the mechanism of yellow leaf formation in woody plants is more complicated and less understood. Poplars are common and widely distributed perennial trees.
Yuru Tian   +6 more
doaj   +1 more source

From chlorophyll a towards bacteriochlorophyll a: Excited-state processes of modified pigments [PDF]

open access: yes, 1994
By means of fluorescence spectroscopy and nonlinear absorption experiments, excited-state processes of the modified pigments [3-acetyl]-chlorophyll a, [31-OH]-bacteriochlorophyll a and [3-vinyl]-bacteriochlorophyll a were investigated and compared with ...
Katheder, Ingrid   +4 more
core   +1 more source

Chlorophyll and Chlorophyll Catabolite Analysis by HPLC [PDF]

open access: yes, 2018
The most obvious event of leaf senescence is the loss of chlorophyll. Chlorophyll degradation proceeds in a well-characterized pathway that, although being common to higher plants, yields a species-specific set of chlorophyll catabolites, termed phyllobilins.
Das, Aditi   +2 more
openaire   +2 more sources

Morpho-Biochemical Modification of Petunia to Saline Water and Salicylic Acid Applications

open access: yesHorticulturae, 2023
Petunia (Petunia × hybrida Hort. Vilm.-Andr.) is a well-suited plant for sustainable landscape issues in borderline areas with irrigation with saline water.
Khalid M. Elhindi   +2 more
doaj   +1 more source

Macronutrient Fertilization and Cadmium Absorption in Two Cocoa Clones

open access: yesHorticulturae, 2023
Soil Cd is absorbed by roots and accumulated in cocoa plants, which represents a problem in the commercialization of beans. In order to evaluate whether the exogenous application of macronutrients (N, N-P, N-P-K, N-P-K-S, N-P-K-S-Mg, and N-P-K-S-Mg-Ca ...
Juan J. Reyes-Pérez   +5 more
doaj   +1 more source

Extinction coefficient for red-shifted chlorophylls: Chlorophyll d and chlorophyll f

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2012
Both chlorophyll f and chlorophyll d are red-shifted chlorophylls in oxygenic photosynthetic organisms, which extend photon absorbance into the near infrared region. This expands the range of light that can be used to drive photosynthesis. Quantitative determination of chlorophylls is a crucial step in the investigation of chlorophyll-photosynthetic ...
Li, Yaqiong   +4 more
openaire   +2 more sources

Metal-Enhanced Fluorescence of Chlorophylls in Single Light-Harvesting Complexes [PDF]

open access: yes, 2008
Ensemble and single-molecule spectroscopy demonstrates that both emission and absorption of peridinin−chlorophyll−protein photosynthetic antennae can be largely enhanced through plasmonic interactions.
Brotosudarmo, Tatas H. P.   +8 more
core   +1 more source

Targeted Metabolome and Transcriptome Analyses Reveal the Pigmentation Mechanism of Hippophae (Sea Buckthorn) Fruit

open access: yesFoods, 2022
The genus Hippophae (sea buckthorn) is widely cultivated and consumed in Asia and Europe. The fruit color is an important appearance and commercial trait for sea buckthorn, which is closely related to the biosynthesis and accumulation of various ...
Jialong Liang   +4 more
doaj   +1 more source

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