Chlorophyll catabolites in conditioned media of green microalga Desmodesmus subspicatus
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چکیده
منابع مشابه
How the Colourless ‘Nonfluorescent’ Chlorophyll Catabolites Rust
For a long time, the appearance of the fall colours has been associated with the enigmatic chlorophyll breakdown in higher plants. However, the extensive earlier search for coloured chlorophyll breakdown products has remained unsuccessful. When chlorophyll catabolites from higher plants were first tentatively identified, they were indicated to be colourless. These colourless compounds readily d...
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During senescence, chlorophyll (chl) is metabolized to colorless nonfluorescent chl catabolites (NCCs). A central reaction of the breakdown pathway is the ring cleavage of pheophorbide (pheide) a to a primary fluorescent chl catabolite. Two enzymes catalyze this reaction, pheide a oxygenase (PAO) and red chl catabolite reductase. Five NCCs and three fluorescent chl catabolites (FCCs) accumulate...
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1 Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway, 2 Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA, 3 Marine Laboratory, Nicholas School of the Environment, Duke University, Beaufort, NC, USA, 4 Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation, East China Sea Fisheries Research Institute, Shanghai, China
متن کاملBreakdown of chlorophyll: a nonenzymatic reaction accounts for the formation of the colorless "nonfluorescent" chlorophyll catabolites.
Senescent higher plants degrade their chlorophylls (Chls) to polar colorless tetrapyrrolic Chl catabolites, which accumulate in the vacuoles. In extracts from degreened leaves of the tree Cercidiphyllum japonicum an unpolar catabolite of this type was discovered. This tetrapyrrole was named Cj-NCC-2 and was found to be identical with the product of a stereoselective nonenzymatic isomerization o...
متن کاملRapid Estimation of Astaxanthin and the Carotenoid-to-Chlorophyll Ratio in the Green Microalga Chromochloris zofingiensis Using Flow Cytometry
The green microalga Chromochloris zofingiensis can accumulate significant amounts of valuable carotenoids, mainly natural astaxanthin, a product with applications in functional food, cosmetics, nutraceuticals, and with potential therapeutic value in cardiovascular and neurological diseases. To optimize the production of astaxanthin, it is essential to monitor the content of astaxanthin in algal...
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ژورنال
عنوان ژورنال: Journal of Applied Phycology
سال: 2015
ISSN: 0921-8971,1573-5176
DOI: 10.1007/s10811-015-0618-1