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Cloning of 9-cis-epoxycarotenoid dioxygenase (NCED) gene and the role of ABA on fruit ripening

Identifieur interne : 000A61 ( Ncbi/Curation ); précédent : 000A60; suivant : 000A62

Cloning of 9-cis-epoxycarotenoid dioxygenase (NCED) gene and the role of ABA on fruit ripening

Auteurs : Mei Zhang [République populaire de Chine] ; Bing Yuan [République populaire de Chine] ; Ping Leng [République populaire de Chine]

Source :

Plant Signaling & Behavior [ 1559-2316 ] ; 2009.

RBID : PMC:2676767

Abstract

In order to understand more details about the role of abscisic acid (ABA) in fruit ripening and senescence, six 740 bp cDNAs (LeNCED1, LeNCED2, PpNCED1, VVNCED1, DKNCED1 and CMNCED1) which encode 9-cis-epoxycarotenoid dioxygenase (NCED) as a key enzyme in ABA biosynthesis, were cloned from fruits of tomato, peach, grape, persimmon and melon using an RT-PCR approach. A Blast homology search revealed a similarity of amino acid 85.76% between the NCEDs. A relationship between ABA and ethylene during ripening was also investigated. At the mature green stage, exogenous ABA treatment increased ABA content in flesh, and promoting ethylene synthesis and fruit ripening, while treatment with nordihydroguaiaretic acid (NDGA), inhibited them, delayed fruit ripening and softening. However, ABA inhibited the ethylene synthesis obviously while NDGA promoted them when treated the immature fruit with these chemicals. At the breaker, NDGA treatment cannot block ABA accumulation and ethylene synthesis. Based on the results obtained in this study, it was concluded that ABA plays different role in ethylene synthesis system in different stages of tomato fruit ripening.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2676767

PubMed: 19816120
PubMed Central: 2676767

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PMC:2676767

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Cloning of 9-<italic>cis</italic>
-epoxycarotenoid dioxygenase (NCED) gene and the role of ABA on fruit ripening</title>
<author><name sortKey="Zhang, Mei" sort="Zhang, Mei" uniqKey="Zhang M" first="Mei" last="Zhang">Mei Zhang</name>
<affiliation wicri:level="1"><nlm:aff id="A1">College of Agronomy and Biotechnology; China Agricultural University; Beijing, China</nlm:aff>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Agronomy and Biotechnology; China Agricultural University; Beijing</wicri:regionArea>
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<author><name sortKey="Yuan, Bing" sort="Yuan, Bing" uniqKey="Yuan B" first="Bing" last="Yuan">Bing Yuan</name>
<affiliation wicri:level="1"><nlm:aff id="A2">Department of Chemistry; Fudan University; Shanghai, China</nlm:aff>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Department of Chemistry; Fudan University; Shanghai</wicri:regionArea>
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<author><name sortKey="Leng, Ping" sort="Leng, Ping" uniqKey="Leng P" first="Ping" last="Leng">Ping Leng</name>
<affiliation wicri:level="1"><nlm:aff id="A1">College of Agronomy and Biotechnology; China Agricultural University; Beijing, China</nlm:aff>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Agronomy and Biotechnology; China Agricultural University; Beijing</wicri:regionArea>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Cloning of 9-<italic>cis</italic>
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<author><name sortKey="Zhang, Mei" sort="Zhang, Mei" uniqKey="Zhang M" first="Mei" last="Zhang">Mei Zhang</name>
<affiliation wicri:level="1"><nlm:aff id="A1">College of Agronomy and Biotechnology; China Agricultural University; Beijing, China</nlm:aff>
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<wicri:regionArea>College of Agronomy and Biotechnology; China Agricultural University; Beijing</wicri:regionArea>
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<author><name sortKey="Yuan, Bing" sort="Yuan, Bing" uniqKey="Yuan B" first="Bing" last="Yuan">Bing Yuan</name>
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<wicri:regionArea>Department of Chemistry; Fudan University; Shanghai</wicri:regionArea>
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<author><name sortKey="Leng, Ping" sort="Leng, Ping" uniqKey="Leng P" first="Ping" last="Leng">Ping Leng</name>
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<country xml:lang="fr">République populaire de Chine</country>
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<series><title level="j">Plant Signaling & Behavior</title>
<idno type="ISSN">1559-2316</idno>
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<front><div type="abstract" xml:lang="en"><p>In order to understand more details about the role of abscisic acid (ABA) in fruit ripening and senescence, six 740 bp cDNAs (<italic>LeNCED1, LeNCED2, PpNCED1, VVNCED1, DKNCED1 and CMNCED1</italic>
) which encode 9-cis-epoxycarotenoid dioxygenase (NCED) as a key enzyme in ABA biosynthesis, were cloned from fruits of tomato, peach, grape, persimmon and melon using an RT-PCR approach. A Blast homology search revealed a similarity of amino acid 85.76% between the <italic>NCEDs</italic>
. A relationship between ABA and ethylene during ripening was also investigated. At the mature green stage, exogenous ABA treatment increased ABA content in flesh, and promoting ethylene synthesis and fruit ripening, while treatment with nordihydroguaiaretic acid (NDGA), inhibited them, delayed fruit ripening and softening. However, ABA inhibited the ethylene synthesis obviously while NDGA promoted them when treated the immature fruit with these chemicals. At the breaker, NDGA treatment cannot block ABA accumulation and ethylene synthesis. Based on the results obtained in this study, it was concluded that ABA plays different role in ethylene synthesis system in different stages of tomato fruit ripening.</p>
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Cloning of 9-cis-epoxycarotenoid dioxygenase (NCED) gene and the role of ABA on fruit ripening

Cloning of 9-cis-epoxycarotenoid dioxygenase (NCED) gene and the role of ABA on fruit ripening

Source :

Abstract

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