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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/err063
|2 doi
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|a pubmed24n0692.xml
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|a (DE-627)NLM207652686
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|a (NLM)21511911
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Atkinson, Ross G
|e verfasserin
|4 aut
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| 245 |
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|a Dissecting the role of climacteric ethylene in kiwifruit (Actinidia chinensis) ripening using a 1-aminocyclopropane-1-carboxylic acid oxidase knockdown line
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 07.11.2011
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|a Date Revised 15.11.2012
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|a published: Print-Electronic
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|a GENBANK: HQ293204, HQ293205, HQ293206, HQ293207, HQ293208, HQ293209, HQ293210, HQ293211, HQ293212
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|a Citation Status MEDLINE
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|a During climacteric fruit ripening, autocatalytic (Type II) ethylene production initiates a transcriptional cascade that controls the production of many important fruit quality traits including flavour production and softening. The last step in ethylene biosynthesis is the conversion of 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene by the enzyme ACC oxidase (ACO). Ten independent kiwifruit (Actinidia chinensis) lines were generated targeting suppression of fruit ripening-related ACO genes and the fruit from one of these lines (TK2) did not produce detectable levels of climacteric ethylene. Ripening behaviour in a population of kiwifruit at harvest is asynchronous, so a short burst of exogenous ethylene was used to synchronize ripening in TK2 and control fruit. Following such a treatment, TK2 and control fruit softened to an 'eating-ripe' firmness. Control fruit produced climacteric ethylene and softened beyond eating-ripe by 5 d. In contrast, TK2 fruit maintained an eating-ripe firmness for >25 d and total volatile production was dramatically reduced. Application of continuous exogenous ethylene to the ripening-arrested TK2 fruit re-initiated fruit softening and typical ripe fruit volatiles were detected. A 17 500 gene microarray identified 401 genes that changed after ethylene treatment, including a polygalacturonase and a pectate lyase involved in cell wall breakdown, and a quinone oxidoreductase potentially involved in volatile production. Many of the gene changes were consistent with the softening and flavour changes observed after ethylene treatment. However, a surprisingly large number of genes of unknown function were also observed, which could account for the unique flavour and textural properties of ripe kiwifruit
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a DNA, Complementary
|2 NLM
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|a Ethylenes
|2 NLM
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| 650 |
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|a Plant Growth Regulators
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a ethylene
|2 NLM
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| 650 |
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|a 91GW059KN7
|2 NLM
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| 650 |
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|a Amino Acid Oxidoreductases
|2 NLM
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| 650 |
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|a EC 1.4.-
|2 NLM
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| 650 |
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|a 1-aminocyclopropane-1-carboxylic acid oxidase
|2 NLM
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| 650 |
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|a EC 1.4.3.-
|2 NLM
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| 700 |
1 |
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|a Gunaseelan, Kularajathevan
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Mindy Y
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Luke
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Tianchi
|e verfasserin
|4 aut
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| 700 |
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|a Norling, Cara L
|e verfasserin
|4 aut
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| 700 |
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|a Johnston, Sarah L
|e verfasserin
|4 aut
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| 700 |
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|a Maddumage, Ratnasiri
|e verfasserin
|4 aut
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|a Schröder, Roswitha
|e verfasserin
|4 aut
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| 700 |
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|a Schaffer, Robert J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 62(2011), 11 vom: 15. Juli, Seite 3821-35
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:62
|g year:2011
|g number:11
|g day:15
|g month:07
|g pages:3821-35
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|u http://dx.doi.org/10.1093/jxb/err063
|3 Volltext
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|a AR
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|d 62
|j 2011
|e 11
|b 15
|c 07
|h 3821-35
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