Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect
A singular adaptive phenotype of a parthenogenetic insect species (Acyrthosiphon pisum) was selected in cold conditions and is characterized by a remarkable apparition of a greenish colour. The aphid pigments involve carotenoid genes well defined in chloroplasts and cyanobacteria and amazingly present in the aphid genome, likely by lateral transfer during evolution. The abundant carotenoid synthesis in aphids suggests strongly that a major and unknown physiological role is related to these compounds beyond their canonical anti-oxidant properties. We report here that the capture of light energy in living aphids results in the photo induced electron transfer from excited chromophores to acceptor molecules. The redox potentials of molecules involved in this process would be compatible with the reduction of the NAD+ coenzyme. This appears as an archaic photosynthetic system consisting of photo-emitted electrons that are in fine funnelled into the mitochondrial reducing power in order to synthesize ATP molecules.
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Subjects: | L50 - Physiologie et biochimie animales, Acyrthosiphon pisum, caroténoïde, couleur, biosynthèse, ATP, physiologie animale, mitochondrie, génétique animale, lumière, rayonnement ultraviolet, photosynthèse, http://aims.fao.org/aos/agrovoc/c_24591, http://aims.fao.org/aos/agrovoc/c_1333, http://aims.fao.org/aos/agrovoc/c_1773, http://aims.fao.org/aos/agrovoc/c_928, http://aims.fao.org/aos/agrovoc/c_125, http://aims.fao.org/aos/agrovoc/c_25187, http://aims.fao.org/aos/agrovoc/c_4869, http://aims.fao.org/aos/agrovoc/c_49986, http://aims.fao.org/aos/agrovoc/c_4322, http://aims.fao.org/aos/agrovoc/c_8046, http://aims.fao.org/aos/agrovoc/c_5812, |
Online Access: | http://agritrop.cirad.fr/566006/ http://agritrop.cirad.fr/566006/1/document_566006.pdf |
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dig-cirad-fr-5660062024-01-28T20:49:23Z http://agritrop.cirad.fr/566006/ http://agritrop.cirad.fr/566006/ Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect. Valmalette Jean Christophe, Dombrovsky Aviv, Brat Pierre, Mertz Christian, Capovilla Maria, Robichon Alain. 2012. Scientific Reports, 2 (579), 8 p.https://doi.org/10.1038/srep00579 <https://doi.org/10.1038/srep00579> Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect Valmalette, Jean Christophe Dombrovsky, Aviv Brat, Pierre Mertz, Christian Capovilla, Maria Robichon, Alain eng 2012 Scientific Reports L50 - Physiologie et biochimie animales Acyrthosiphon pisum caroténoïde couleur biosynthèse ATP physiologie animale mitochondrie génétique animale lumière rayonnement ultraviolet photosynthèse http://aims.fao.org/aos/agrovoc/c_24591 http://aims.fao.org/aos/agrovoc/c_1333 http://aims.fao.org/aos/agrovoc/c_1773 http://aims.fao.org/aos/agrovoc/c_928 http://aims.fao.org/aos/agrovoc/c_125 http://aims.fao.org/aos/agrovoc/c_25187 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_49986 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_8046 http://aims.fao.org/aos/agrovoc/c_5812 A singular adaptive phenotype of a parthenogenetic insect species (Acyrthosiphon pisum) was selected in cold conditions and is characterized by a remarkable apparition of a greenish colour. The aphid pigments involve carotenoid genes well defined in chloroplasts and cyanobacteria and amazingly present in the aphid genome, likely by lateral transfer during evolution. The abundant carotenoid synthesis in aphids suggests strongly that a major and unknown physiological role is related to these compounds beyond their canonical anti-oxidant properties. We report here that the capture of light energy in living aphids results in the photo induced electron transfer from excited chromophores to acceptor molecules. The redox potentials of molecules involved in this process would be compatible with the reduction of the NAD+ coenzyme. This appears as an archaic photosynthetic system consisting of photo-emitted electrons that are in fine funnelled into the mitochondrial reducing power in order to synthesize ATP molecules. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/566006/1/document_566006.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1038/srep00579 10.1038/srep00579 info:eu-repo/semantics/altIdentifier/doi/10.1038/srep00579 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1038/srep00579 |
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L50 - Physiologie et biochimie animales Acyrthosiphon pisum caroténoïde couleur biosynthèse ATP physiologie animale mitochondrie génétique animale lumière rayonnement ultraviolet photosynthèse http://aims.fao.org/aos/agrovoc/c_24591 http://aims.fao.org/aos/agrovoc/c_1333 http://aims.fao.org/aos/agrovoc/c_1773 http://aims.fao.org/aos/agrovoc/c_928 http://aims.fao.org/aos/agrovoc/c_125 http://aims.fao.org/aos/agrovoc/c_25187 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_49986 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_8046 http://aims.fao.org/aos/agrovoc/c_5812 L50 - Physiologie et biochimie animales Acyrthosiphon pisum caroténoïde couleur biosynthèse ATP physiologie animale mitochondrie génétique animale lumière rayonnement ultraviolet photosynthèse http://aims.fao.org/aos/agrovoc/c_24591 http://aims.fao.org/aos/agrovoc/c_1333 http://aims.fao.org/aos/agrovoc/c_1773 http://aims.fao.org/aos/agrovoc/c_928 http://aims.fao.org/aos/agrovoc/c_125 http://aims.fao.org/aos/agrovoc/c_25187 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_49986 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_8046 http://aims.fao.org/aos/agrovoc/c_5812 |
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L50 - Physiologie et biochimie animales Acyrthosiphon pisum caroténoïde couleur biosynthèse ATP physiologie animale mitochondrie génétique animale lumière rayonnement ultraviolet photosynthèse http://aims.fao.org/aos/agrovoc/c_24591 http://aims.fao.org/aos/agrovoc/c_1333 http://aims.fao.org/aos/agrovoc/c_1773 http://aims.fao.org/aos/agrovoc/c_928 http://aims.fao.org/aos/agrovoc/c_125 http://aims.fao.org/aos/agrovoc/c_25187 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_49986 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_8046 http://aims.fao.org/aos/agrovoc/c_5812 L50 - Physiologie et biochimie animales Acyrthosiphon pisum caroténoïde couleur biosynthèse ATP physiologie animale mitochondrie génétique animale lumière rayonnement ultraviolet photosynthèse http://aims.fao.org/aos/agrovoc/c_24591 http://aims.fao.org/aos/agrovoc/c_1333 http://aims.fao.org/aos/agrovoc/c_1773 http://aims.fao.org/aos/agrovoc/c_928 http://aims.fao.org/aos/agrovoc/c_125 http://aims.fao.org/aos/agrovoc/c_25187 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_49986 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_8046 http://aims.fao.org/aos/agrovoc/c_5812 Valmalette, Jean Christophe Dombrovsky, Aviv Brat, Pierre Mertz, Christian Capovilla, Maria Robichon, Alain Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect |
description |
A singular adaptive phenotype of a parthenogenetic insect species (Acyrthosiphon pisum) was selected in cold conditions and is characterized by a remarkable apparition of a greenish colour. The aphid pigments involve carotenoid genes well defined in chloroplasts and cyanobacteria and amazingly present in the aphid genome, likely by lateral transfer during evolution. The abundant carotenoid synthesis in aphids suggests strongly that a major and unknown physiological role is related to these compounds beyond their canonical anti-oxidant properties. We report here that the capture of light energy in living aphids results in the photo induced electron transfer from excited chromophores to acceptor molecules. The redox potentials of molecules involved in this process would be compatible with the reduction of the NAD+ coenzyme. This appears as an archaic photosynthetic system consisting of photo-emitted electrons that are in fine funnelled into the mitochondrial reducing power in order to synthesize ATP molecules. |
format |
article |
topic_facet |
L50 - Physiologie et biochimie animales Acyrthosiphon pisum caroténoïde couleur biosynthèse ATP physiologie animale mitochondrie génétique animale lumière rayonnement ultraviolet photosynthèse http://aims.fao.org/aos/agrovoc/c_24591 http://aims.fao.org/aos/agrovoc/c_1333 http://aims.fao.org/aos/agrovoc/c_1773 http://aims.fao.org/aos/agrovoc/c_928 http://aims.fao.org/aos/agrovoc/c_125 http://aims.fao.org/aos/agrovoc/c_25187 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_49986 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_8046 http://aims.fao.org/aos/agrovoc/c_5812 |
author |
Valmalette, Jean Christophe Dombrovsky, Aviv Brat, Pierre Mertz, Christian Capovilla, Maria Robichon, Alain |
author_facet |
Valmalette, Jean Christophe Dombrovsky, Aviv Brat, Pierre Mertz, Christian Capovilla, Maria Robichon, Alain |
author_sort |
Valmalette, Jean Christophe |
title |
Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect |
title_short |
Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect |
title_full |
Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect |
title_fullStr |
Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect |
title_full_unstemmed |
Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect |
title_sort |
light- induced electron transfer and atp synthesis in a carotene synthesizing insect |
url |
http://agritrop.cirad.fr/566006/ http://agritrop.cirad.fr/566006/1/document_566006.pdf |
work_keys_str_mv |
AT valmalettejeanchristophe lightinducedelectrontransferandatpsynthesisinacarotenesynthesizinginsect AT dombrovskyaviv lightinducedelectrontransferandatpsynthesisinacarotenesynthesizinginsect AT bratpierre lightinducedelectrontransferandatpsynthesisinacarotenesynthesizinginsect AT mertzchristian lightinducedelectrontransferandatpsynthesisinacarotenesynthesizinginsect AT capovillamaria lightinducedelectrontransferandatpsynthesisinacarotenesynthesizinginsect AT robichonalain lightinducedelectrontransferandatpsynthesisinacarotenesynthesizinginsect |
_version_ |
1792498306326200320 |