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240114s2024 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erae003
|2 doi
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|a pubmed24n1377.xml
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|a (DE-627)NLM366802011
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|a (NLM)38189579
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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 Kimura, Izumi
|e verfasserin
|4 aut
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| 245 |
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|a A phytochrome/phototropin chimeric photoreceptor promotes growth of fern gametophytes under limited light conditions
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|c 2024
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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 16.04.2024
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|a Date Revised 16.04.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Many ferns thrive even in low-light niches such as under an angiosperm forest canopy. However, the shade adaptation strategy of ferns is not well understood. Phytochrome 3/neochrome (phy3/neo) is an unconventional photoreceptor, found in the fern Adiantum capillus-veneris, that controls both red and blue light-dependent phototropism and chloroplast photorelocation, which are considered to improve photosynthetic efficiency in ferns. Here we show that phy3/neo localizes not only at the plasma membrane but also in the nucleus. Since both phototropism and chloroplast photorelocation are mediated by membrane-associated phototropin photoreceptors, we speculated that nucleus-localized phy3/neo possesses a previously undescribed biological function. We reveal that phy3/neo directly interacts with Adiantum cryptochrome 3 (cry3) in the nucleus. Plant cryptochromes are blue light receptors that transcriptionally regulate photomorphogenesis; therefore, phy3/neo may function via cry3 to synchronize light-mediated development with phototropism and chloroplast photorelocation to promote fern growth under low-light conditions. Furthermore, we demonstrate that phy3/neo regulates the expression of the Cyclin-like gene AcCyc1 and promotes prothallium expansion growth. These findings provide insight into the shade adaptation strategy of ferns and suggest that phy3/neo plays a substantial role in the survival and growth of ferns during the tiny gametophytic stage under low-light conditions, such as those on the forest floor
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|a Journal Article
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|a Adiantum
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| 650 |
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4 |
|a cryptochrome
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| 650 |
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|a fern
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| 650 |
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4 |
|a neochrome
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| 650 |
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4 |
|a phototropin
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| 650 |
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4 |
|a phy3
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| 650 |
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4 |
|a phytochrome
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| 650 |
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7 |
|a Phytochrome
|2 NLM
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| 650 |
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7 |
|a 11121-56-5
|2 NLM
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| 650 |
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7 |
|a Phototropins
|2 NLM
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| 650 |
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7 |
|a Cryptochromes
|2 NLM
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| 700 |
1 |
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|a Kanegae, Takeshi
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 75(2024), 8 vom: 15. Apr., Seite 2403-2416
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:75
|g year:2024
|g number:8
|g day:15
|g month:04
|g pages:2403-2416
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erae003
|3 Volltext
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|h 2403-2416
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