نتایج جستجو برای: chlorophyll b and total chlorophylls
تعداد نتایج: 16990652 فیلتر نتایج به سال:
The thermal process of green amaranth leads to the partial or complete degradation chlorophyll pigments and loss colour due formation derivatives. This study aimed evaluate a stabilisation utilising metal ions obtain stable metal-chlorophyll derivative complexes. In this study, effects CuSO4 (0–240 ppm), ZnCl2 (0–1800 ppm) ions, pH (4–9), temperature (60–100 °C) on purees with constant time 15 ...
The plant light-harvesting complex of photosystem II (LHC-II) collects and transmits solar energy for photosynthesis in chloroplast membranes and has essential roles in regulation of photosynthesis and in photoprotection. The 2.5 A structure of pea LHC-II determined by X-ray crystallography of stacked two-dimensional crystals shows how membranes interact to form chloroplast grana, and reveals t...
We provide a new and definitive spectral assignment for the absorption, emission, high-resolution fluorescence excitation, linear dichroism, and/or magnetic circular dichroism spectra of 32 chlorophyllides in various environments. This encompases all data used to justify previous assignments and provides a simple interpretation of unexplained complex decoherence phenomena associated with Qx → Q...
Spontaneous pigment mutants of Anacystis nidulans were self-selected for improved growth in far red light (> 650 nanometers). Questions were asked about those features of the light-harvesting mechanism which altered to give the mutants improved photosynthetic performance in far red. Answers were sought by comparing pigment and reaction center concentrations for the parent and six mutants grown ...
Radish (Raphanus sativus) is a Brassica vegetable important for human nutrition and health because it rich in diverse metabolites. Although previous studies have evaluated various metabolites, few comprehensively profiled the primary secondary metabolites roots of white- green-colored radishes. Thus, this study aimed to provide information about contents beneficial both cultivars investigate re...
Chlorophylls are essential components of the photosynthetic apparati that sustain all of the life forms that ultimately depend on solar energy. However, a drawback of the extraordinary photosensitizing efficiency of certain chlorophyll species is their ability to generate harmful singlet oxygen. Recent studies have clarified the catabolic processes involved in the detoxification of chlorophylls...
Salinization is a global environmental problem. It particularly prevalent in Africa areas with low rainfall trend such as the Senegalese groundnut basin where 20% of land affected. reduces food production by more than 10%. In Senegal, sesame (Sesamum indicum L.) moderately tolerant to drought and salinity increasingly cultivated. an alternative fight poverty rural allows revaluation salty land....
Chlorophotoautotrophy, the use of chlorophylls to convert light energy into chemical energy for carbon dioxide fixation, is the primary metabolic process linking the inorganic and organic carbon pools on Earth. To understand the potential effects of various environmental constraints on the evolution of chlorophototrophy better, we studied the distribution, diversity, and abundance of chlorophyl...
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