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NAC domain transcription factors VNI2 and ATAF2 form protein complexes and regulate leaf senescence

Nagahage, Isura Sumeda Priyadarshana (author)
Umeå universitet,Institutionen för fysiologisk botanik,Graduate School of Science and Engineering, Saitama University, Saitama, Japan
Matsuda, Kohei (author)
Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
Miyashita, Kyoko (author)
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
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Fujiwara, Sumire (author)
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
Mannapperuma, Chanaka, 1982- (author)
Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
Yamada, Takuya (author)
Graduate School of Science and Engineering, Saitama University, Saitama, Japan
Sakamoto, Shingo (author)
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan; Global Zero-Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
Ishikawa, Toshiki (author)
Graduate School of Science and Engineering, Saitama University, Saitama, Japan
Nagano, Minoru (author)
Graduate School of Science and Engineering, Saitama University, Saitama, Japan
Ohtani, Misato (author)
Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
Kato, Ko (author)
Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
Uchimiya, Hirofumi (author)
Institute for Environmental Science and Technology, Saitama University, Saitama, Japan
Mitsuda, Nobutaka (author)
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan; Global Zero-Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
Kawai-Yamada, Maki (author)
Graduate School of Science and Engineering, Saitama University, Saitama, Japan
Demura, Taku (author)
Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
Yamaguchi, Masatoshi (author)
Graduate School of Science and Engineering, Saitama University, Saitama, Japan
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 (creator_code:org_t)
John Wiley & Sons, 2023
2023
English.
In: Plant Direct. - : John Wiley & Sons. - 2475-4455. ; 7:9
Related links:
https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
https://urn.kb.se/re...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The NAM, ATAF1/2, and CUC2 (NAC) domain transcription factor VND-INTERACTING2 (VNI2) negatively regulates xylem vessel formation by interacting with another NAC domain transcription factor, VASCULAR-RELATED NAC-DOMAIN7 (VND7), a master regulator of xylem vessel formation. Here, we screened interacting proteins with VNI2 using yeast two-hybrid assay and isolated two NAC domain transcription factors, Arabidopsis thaliana ACTIVATION FACTOR 2 (ATAF2) and NAC DOMAIN CONTAINING PROTEIN 102 (ANAC102). A transient gene expression assay showed that ATAF2 upregulates the expression of genes involved in leaf senescence, and VNI2 effectively inhibits the transcriptional activation activity of ATAF2. vni2 mutants accelerate leaf senescence, whereas ataf2 mutants delay leaf senescence. In addition, the accelerated leaf senescence phenotype of the vni2 mutant is recovered by simultaneous mutation of ATAF2. Our findings strongly suggest that VNI2 interacts with and inhibits ATAF2, resulting in negatively regulating leaf senescence.

Subject headings

NATURVETENSKAP  -- Biologi -- Botanik (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Botany (hsv//eng)
NATURVETENSKAP  -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)

Keyword

Arabidopsis thaliana
leaf senescence
NAC domain protein
protein–protein interaction
transcription factor

Publication and Content Type

ref (subject category)
art (subject category)

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