A New Chlorophyll Degradation Pathway
نویسندگان
چکیده
منابع مشابه
A new chlorophyll degradation pathway.
Chlorophyll degradation is vital during leaf senescence and fruit ripening, as it allows for recycling of nitrogen and other nutrients and for protection from buildup of phototoxic chlorophyll intermediates (Hörtensteiner, 2006). The first steps in chlorophyll breakdown are the removal of the phytol tail (dephytylation) and the central Mg atom. It has been thought that dephytylation typically o...
متن کاملChlorophyll Degradation.
Although the loss of green color in senescent leaves and ripening fruits is a spectacular natural phenomenon, research on chlorophyll breakdown has been largely neglected until recently. This review summarizes knowledge about the fate of chlorophyll in degreening tissues that has been gained during the past few years. Structures of end- and intermediary products of degradation as well as the bi...
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This study reveals by in vivo deuterium labeling that in higher plants chlorophyll (Chl) b is converted to Chl a before degradation. For this purpose, de-greening of excised green primary leaves of barley (Hordeum vulgare) was induced by permanent darkness in the presence of heavy water (80 atom % (2)H). The resulting Chl a catabolite in the plant extract was subjected to chemical degradation b...
متن کاملEvolution of a new chlorophyll metabolic pathway driven by the dynamic changes in enzyme promiscuous activity Running head Evolution of a new chlorophyll metabolic pathway Authors
Title Evolution of a New Chlorophyll Metabolic Pathway Driven by the Dynamic Changes in Enzyme Promiscuous Activity Author(s) Ito, Hisashi; Tanaka, Ayumi Citation Plant and Cell Physiology, 55(3): 593-603 Issue Date 2014-03 Doc URL http://hdl.handle.net/2115/58225 Right This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Plant and Cell Physiology following ...
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Mycobacterium sp. strain HL 4-NT-1, isolated from a mixed soil sample from the Stuttgart area, utilized 4-nitrotoluene as the sole source of nitrogen, carbon, and energy. Under aerobic conditions, resting cells of the Mycobacterium strain metabolized 4-nitrotoluene with concomitant release of small amounts of ammonia; under anaerobic conditions, 4-nitrotoluene was completely converted to 6-amin...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2009
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.109.210313