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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erz284
|2 doi
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|a pubmed24n0993.xml
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|a DE-627
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|a eng
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| 100 |
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|a Yang, Yanqiu
|e verfasserin
|4 aut
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| 245 |
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|a Arabidopsis IPGA1 is a microtubule-associated protein essential for cell expansion during petal morphogenesis
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 10.08.2020
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|a Date Revised 08.10.2020
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Unlike animal cells, plant cells do not possess centrosomes that serve as microtubule organizing centers; how microtubule arrays are organized throughout plant morphogenesis remains poorly understood. We report here that Arabidopsis INCREASED PETAL GROWTH ANISOTROPY 1 (IPGA1), a previously uncharacterized microtubule-associated protein, regulates petal growth and shape by affecting cortical microtubule organization. Through a genetic screen, we showed that IPGA1 loss-of-function mutants displayed a phenotype of longer and narrower petals, as well as increased anisotropic cell expansion of the petal epidermis in the late phases of flower development. Map-based cloning studies revealed that IPGA1 encodes a previously uncharacterized protein that colocalizes with and directly binds to microtubules. IPGA1 plays a negative role in the organization of cortical microtubules into parallel arrays oriented perpendicular to the axis of cell elongation, with the ipga1-1 mutant displaying increased microtubule ordering in petal abaxial epidermal cells. The IPGA1 family is conserved among land plants and its homologs may have evolved to regulate microtubule organization. Taken together, our findings identify IPGA1 as a novel microtubule-associated protein and provide significant insights into IPGA1-mediated microtubule organization and petal growth anisotropy
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis
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|a INCREASED PETAL GROWTH ANISOTROPY 1 (IPGA1)
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|a cortical microtubule
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|a growth anisotropy
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|a microtubule-associated protein
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|a petal
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|a AT4G18570 protein, Arabidopsis
|2 NLM
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Microtubule-Associated Proteins
|2 NLM
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| 700 |
1 |
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|a Chen, Binqinq
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dang, Xie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhu, Lilan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rao, Jinqiu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ren, Huibo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lin, Chentao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qin, Yuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lin, Deshu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 70(2019), 19 vom: 15. Okt., Seite 5231-5243
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:70
|g year:2019
|g number:19
|g day:15
|g month:10
|g pages:5231-5243
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|u http://dx.doi.org/10.1093/jxb/erz284
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