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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2018.05.014
|2 doi
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|a pubmed25n0957.xml
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|a (DE-627)NLM28720104X
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|a (NLM)30080594
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|a (PII)S0168-9452(18)30064-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Ban, Qiuyan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Functional characterization of persimmon β-galactosidase gene DkGAL1 in tomato reveals cell wall modification related to fruit ripening and radicle elongation
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|c 2018
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 09.10.2018
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|a Date Revised 07.12.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2018 Elsevier B.V. All rights reserved.
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|a Cell wall metabolism during fruit ripening is a highly organized process that involves complex interplay among various cell wall hydrolases. Among these cell wall hydrolases, β-galactosidase has been identified to participate in cell wall metabolism via its ability to catalyze galactosyl metabolism from the large and complex side chains of cell walls. In this study, the galactose content in the pericarp increased during persimmon fruit ripening, but cell wall galactosyl residues decreased, indicating a relationship between galactose metabolism and persimmon fruit ripening. Expression of a previously isolated β-galactosidase gene, DkGAL1, increased 25.01-fold during fruit ripening. Heterologous expression of DkGAL1 under the CaMV 35S promoter in tomato accelerated on-plant and postharvest fruits ripening. The fruit firmness of one of transgenic line, OE-18, was 23.83% lower than that of WT at the breaker stage. The transgenic fruits produced more ethylene by promoting the expression of ethylene synthesis-related genes and cell wall degradation-related genes. Overexpression of DkGAL1 in tomato also reduced cell-to-cell adhesion and promoted both wider intercellular spaces and less cell compaction in transgenic fruit structures. Moreover, DkGAL1 was involved in seed germination and radicle elongation in transgenic tomato seeds. These results confirm the role of DkGAL1 in fruit ripening and suggest that this gene alters galactose metabolism in the fruit, which can promote ripening and reduce cellular adhesion. In addition, the role of DkGAL1 is not limited to fruit softening; DkGAL1 was also involved in seed germination and radicle elongation in transgenic tomato seeds
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|a Journal Article
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|a Cell wall
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|a Germination
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|a Persimmon
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|a Radicle elongation
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|a Ripening
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|a β-Galactosidase
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|a Ethylenes
|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 beta-Galactosidase
|2 NLM
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| 650 |
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|a EC 3.2.1.23
|2 NLM
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| 700 |
1 |
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|a Han, Ye
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Yiheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jin, Mijing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Shoukun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Suo, Jiangtao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rao, JingPing
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 274(2018) vom: 01. Sept., Seite 109-120
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
1 |
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|g volume:274
|g year:2018
|g day:01
|g month:09
|g pages:109-120
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| 856 |
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|u http://dx.doi.org/10.1016/j.plantsci.2018.05.014
|3 Volltext
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|d 274
|j 2018
|b 01
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|h 109-120
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