Chlorophyll Breakdown in Tobacco: On the Structure of Two Nonfluorescent Chlorophyll Catabolites

2004 ◽  
Vol 1 (4) ◽  
pp. 657-668 ◽  
Author(s):  
Joachim Berghold ◽  
Christian Eichmüller ◽  
Stefan Hörtensteiner ◽  
Bernhard Kräutler
Keyword(s):  
Chlorophyll Breakdown ◽  
Chlorophyll Catabolites

scholarly journals Structures of Chlorophyll Catabolites in Bananas (Musa acuminata)Reveal a Split Path of Chlorophyll Breakdown in a Ripening Fruit

2012 ◽  
Vol 18 (35) ◽  
pp. 10873-10885 ◽  
Author(s):  
Simone Moser ◽  
Thomas Müller ◽  
Andreas Holzinger ◽  
Cornelius Lütz ◽  
Bernhard Kräutler
Keyword(s):  
Musa Acuminata ◽  
Chlorophyll Breakdown ◽  
Chlorophyll Catabolites

scholarly journals Chlorophyll Breakdown in Senescent Arabidopsis Leaves. Characterization of Chlorophyll Catabolites and of Chlorophyll Catabolic Enzymes Involved in the Degreening Reaction

2005 ◽  
Vol 139 (1) ◽  
pp. 52-63 ◽  
Author(s):  
Adriana Pružinská ◽  
Gaby Tanner ◽  
Sylvain Aubry ◽  
Iwona Anders ◽  
Simone Moser ◽  
...  
Keyword(s):  
Catabolic Enzymes ◽  
Chlorophyll Breakdown ◽  
Chlorophyll Catabolites

Unravelling chlorophyll catabolism in higher plants

2002 ◽  
Vol 30 (4) ◽  
pp. 625-630 ◽  
Author(s):  
B. Kräutler
Keyword(s):  
Higher Plants ◽  
Structural Features ◽  
Spectroscopic Methods ◽  
Chlorophyll Metabolism ◽  
Chlorophyll Breakdown ◽  
Chlorophyll Catabolites

Chlorophyll metabolism is probably the most visible manifestation of life. In spite of this, chlorophyll catabolism has remained something of a mystery until about 10 years ago. At that time, the first non-green tetrapyrrolic chlorophyll breakdown products from higher plants were discovered, and the structure of the first one of them was elucidated by modern spectroscopic methods. In the meantime, the essential structural features of chlorophyll catabolites and some of the biochemistry of chlorophyll breakdown in higher plants have been uncovered, as outlined in this article.

scholarly journals MES16, a Member of the Methylesterase Protein Family, Specifically Demethylates Fluorescent Chlorophyll Catabolites during Chlorophyll Breakdown in Arabidopsis

2011 ◽  
Vol 158 (2) ◽  
pp. 628-641 ◽  
Author(s):  
Bastien Christ ◽  
Silvia Schelbert ◽  
Sylvain Aubry ◽  
Iris Süssenbacher ◽  
Thomas Müller ◽  
...  
Keyword(s):  
Protein Family ◽  
Chlorophyll Breakdown ◽  
Chlorophyll Catabolites

Chlorophyll Breakdown in Maize: On the Structure of Two Nonfluorescent Chlorophyll Catabolites

2006 ◽  
Vol 137 (6) ◽  
pp. 751-763 ◽  
Author(s):  
Joachim Berghold ◽  
Thomas Müller ◽  
Markus Ulrich ◽  
Stefan Hörtensteiner ◽  
Bernhard Kräutler
Keyword(s):  
Chlorophyll Breakdown ◽  
Chlorophyll Catabolites

scholarly journals Fluorescent chlorophyll catabolites in bananas light up blue halos of cell death

2009 ◽  
Vol 106 (37) ◽  
pp. 15538-15543 ◽  
Author(s):  
Simone Moser ◽  
Thomas Müller ◽  
Andreas Holzinger ◽  
Cornelius Lütz ◽  
Steffen Jockusch ◽  
...  
Keyword(s):  
Cell Death ◽  
Uv Light ◽  
Physiological Role ◽  
In Vivo Studies ◽  
Time Resolved ◽  
Color Changes ◽  
Chlorophyll Breakdown ◽  
Fluorescence Measurements ◽  
Chlorophyll Catabolites

Breakdown of chlorophyll is a major contributor to the diagnostic color changes in fall leaves, and in ripening apples and pears, where it commonly provides colorless, nonfluorescent tetrapyrroles. In contrast, in ripening bananas (Musa acuminata) chlorophylls fade to give unique fluorescent catabolites (FCCs), causing yellow bananas to glow blue, when observed under UV light. Here, we demonstrate the capacity of the blue fluorescent chlorophyll catabolites to signal symptoms of programmed cell death in a plant. We report on studies of bright blue luminescent rings on the peel of very ripe bananas, which arise as halos around necrotic areas in ‘senescence associated’ dark spots. These dark spots appear naturally on the peel of ripe bananas and occur in the vicinity of stomata. Wavelength, space, and time resolved fluorescence measurements allowed the luminescent areas to be monitored on whole bananas. Our studies revealed an accumulation of FCCs in luminescent rings, within senescing cells undergoing the transition to dead tissue, as was observable by morphological textural cellular changes. FCCs typically are short lived intermediates of chlorophyll breakdown. In some plants, FCCs are uniquely persistent, as is seen in bananas, and can thus be used as luminescent in vivo markers in tissue undergoing senescence. While FCCs still remain to be tested for their own hypothetical physiological role in plants, they may help fill the demand for specific endogenous molecular reporters in noninvasive assays of plant senescence. Thus, they allow for in vivo studies, which provide insights into critical stages preceding cell death.

scholarly journals Inside Cover: Structures of Chlorophyll Catabolites in Bananas (Musa acuminata)Reveal a Split Path of Chlorophyll Breakdown in a Ripening Fruit (Chem. Eur. J. 35/2012)

2012 ◽  
Vol 18 (35) ◽  
pp. 10766-10766
Author(s):  
Simone Moser ◽  
Thomas Müller ◽  
Andreas Holzinger ◽  
Cornelius Lütz ◽  
Bernhard Kräutler
Keyword(s):  
Musa Acuminata ◽  
Chlorophyll Breakdown ◽  
Chlorophyll Catabolites
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