Evidence map›Paper›PMID 35294032›Full record

ArticlePlant physiology2022

Sucrose nonfermenting-1-related protein kinase 1 regulates sheath-to-panicle transport of nonstructural carbohydrates during rice grain filling.

Yuxiang Hu, Jiajun Liu, Yan Lin, Xuemei Xu, Yongqing Xia, Jiaqi Bai, Yongchao Yu, Feng Xiao, Yanfeng Ding, Chengqiang Ding and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
12.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 63 citations in OpenAlex.

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  14. How to switch on a master switch.Journal of experimental botany · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 1 institution in 1 country.

Yuxiang HuCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.
Jiajun LiuCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.
Yan LinCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.
Xuemei XuCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.ORCID 0000-0002-0052-9284
Yongqing XiaCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.
Jiaqi BaiCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.ORCID 0000-0003-0485-4727
Yongchao YuCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.ORCID 0000-0003-3876-4367
Feng XiaoCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.
Yanfeng DingCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.ORCID 0000-0002-7747-8956
Chengqiang DingCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.ORCID 0000-0001-6061-1979
Lin ChenCollege of Agriculture, Nanjing Agricultural University, Nanjing, China.ORCID 0000-0001-5890-7682
Nanjing Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The remobilization of nonstructural carbohydrates (NSCs) reserved in rice (Oryza sativa) sheaths is essential for grain filling. This assimilate distribution between plant tissues and organs is determined by sucrose non-fermenting-1-related protein kinase 1 (SnRK1). However, the SnRK1-mediated mechanism regulating the sheath-to-panicle transport of NSCs in rice remains unknown. In this study, leaf cutting treatment was used to accelerate NSC transport in the rice sheaths. Accelerated NSC transport was accompanied by increased levels of OsSnRK1a mRNA expression, SnRK1a protein expression, catalytic subunit phosphorylation of SnRK1, and SnRK1 activity, indicating that SnRK1 activity plays an important role in sheath NSC transport. We also discovered that trehalose-6-phosphate, a signal of sucrose availability, slightly reduced SnRK1 activity in vitro. Since SnRK1 activity is mostly regulated by OsSnRK1a transcription in response to low sucrose content, we constructed an snrk1a mutant to verify the function of SnRK1 in NSC transport. NSCs accumulated in the sheaths of snrk1a mutant plants and resulted in a low seed setting rate and grain weight, verifying that SnRK1 activity is essential for NSC remobilization. Using phosphoproteomics and parallel reaction monitoring, we identified 20 SnRK1-dependent phosphosites that are involved in NSC transport. In addition, the SnRK1-mediated phosphorylation of the phosphosites directly affected starch degradation, sucrose metabolism, phloem transport, sugar transport across the tonoplast, and glycolysis in rice sheaths to promote NSC transport. Therefore, our findings reveal the importance, function, and possible regulatory mechanism of SnRK1 in the sheath-to-panicle transport of NSCs in rice.

Indexed as

OryzaCarbohydratesEdible GrainPlant ProteinsProtein Serine-Threonine KinasesSeedsSucroseCarbohydratesPlant ProteinsProtein Serine-Threonine KinasesSucrose

Identifiers

PMID35294032
PMCPMC9237689
OpenAlexW4220981036

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.