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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/jpy.13073
|2 doi
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|a pubmed24n1051.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Zheng, Zhenbing
|e verfasserin
|4 aut
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| 245 |
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|a Co-suppression in Pyropia yezoensis (Rhodophyta) Reveals the Role of PyLHCI in Light Harvesting and Generation Switch
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|c 2021
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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
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|a Date Completed 20.04.2021
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|a Date Revised 20.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 Phycological Society of America.
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|a The red macroalga Pyropia yezoensis is an economically important seaweed widely cultured in Asian countries and is a model organism for molecular biological and commercial research. This species is unique in that it utilizes both phycobilisomes and transmembrane light-harvesting proteins as its antenna system. Here, one of the genes of P. yezoensis (PyLHCI) was selected for introduction into its genome to overexpress PyLHCI. However, the co-suppression phenomenon occurred. This is the first documentation of co-suppression in algae, in which it exhibits a different mechanism from that in higher plants. The transformant (T1) was demonstrated to have higher phycobilisomes and lower LHC binding pigments, resulting in a redder color, higher sensitivity to salt stress, smaller in size, and slower growth rate than the wildtype (WT). The photosynthetic performances of T1 and WT showed similar characteristics; however, P700 reduction was slower in T1. Most importantly, T1 could release a high percentage of carpospores in young blades to switch generation during its life cycle, which was rarely seen in WT. The co-suppression of PyLHCI revealed its key roles in light harvesting, stress resistance, and generation alternation (generation switch from gametophytes to sporophytes, and reproduction from asexual to sexual)
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Pyropia yezoensis
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4 |
|a LHCI
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|a co-suppression
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|a generation switch
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| 650 |
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4 |
|a life cycle
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| 700 |
1 |
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|a He, Bangxiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xie, Xiujun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Guangce
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 57(2021), 1 vom: 15. Feb., Seite 160-171
|w (DE-627)NLM098182994
|x 1529-8817
|7 nnns
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| 773 |
1 |
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|g volume:57
|g year:2021
|g number:1
|g day:15
|g month:02
|g pages:160-171
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|u http://dx.doi.org/10.1111/jpy.13073
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