Evidence map›Paper›PMID 42021465›Full record

ArticlePlant, cell & environment2026

CbuBIM1 Antagonizes CbuMYB27 to Regulate Tension Wood Formation in Catalpa bungei.

Dian Wang, Shaofeng Li, Shumin Wang, Jichun Li, Junhang Fu, Fei Xia, Nan Lu, Wenjun Ma, Peng Wang, Gongke Zhou and 2 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Plant, cell & environment, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

12 authors.

Dian WangShandong Key Laboratory for Germplasm Innovation of Saline-Alkaline Tolerant Grasses and Trees, Qingdao Agricultural University, Qingdao, Shandong, China.
Shaofeng LiState Key Laboratory of Tree Genetics and Breeding, Experimental Center of Forestry in North China, National Permanent Scientific Research Base for Warm Temperate Zone Forestry of Jiulong Mountain in Beijing, Chinese Academy of Forestry, Beijing, China.
Shumin WangShandong Key Laboratory for Germplasm Innovation of Saline-Alkaline Tolerant Grasses and Trees, Qingdao Agricultural University, Qingdao, Shandong, China.
Jichun LiCollege of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong, China.
Junhang FuCollege of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong, China.
Fei XiaCollege of Agronomy, Qingdao Agricultural University, Qingdao, China.
Nan LuState Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China.
Wenjun MaState Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China.
Peng WangInstitute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China.
Gongke ZhouShandong Key Laboratory for Germplasm Innovation of Saline-Alkaline Tolerant Grasses and Trees, Qingdao Agricultural University, Qingdao, Shandong, China.
Junhui WangState Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China.
Xianfeng TangCollege of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong, China.

Funding

Key R&D Program of Shandong Province, China 2025CXPT149The Fundamental Research Funds of CAF CAFYBB2020QD001
6 · The paper itself

Abstract

Catalpa bungei is a valuable timber species famous for its high-quality wood properties, which are greatly compromised by tension wood (TW) formation. However, the molecular mechanisms underlying TW remain unclear. In this study, we identified that CbuMYB27 was specifically upregulated during TW formation in C. bungei. CbuMYB27 exhibits the highest expression level in the stem and its encoded protein possesses transcriptional activation activity. Overexpression of CbuMYB27 in hybrid poplar (84K) resulted in increased cambium layers and xylem width. Further analysis revealed that CbuMYB27 negatively regulates lignin biosynthesis. Molecular analysis indicated that CbuMYB27 positively regulates cambial activity and negatively regulates lignin biosynthesis by directly activating cambium-related genes and suppressing lignin-biosynthetic genes, respectively. Protein interaction assays indicated that CbuMYB27 physically interacts with a bHLH transcription factor, CbuBIM1. Although CbuBIM1 cannot directly regulate the target genes of CbuMYB27, it antagonizes CbuMYB27-mediated transcriptional regulation of these downstream genes. Moreover, CbuBIM1 attenuates the promoting effect of CbuMYB27 in TW formation caused by bending stress. In summary, our findings identify a functionally antagonistic module of CbuMYB27- CbuBIM1, which is involved in TW formation by modulating cambium activity and lignin biosynthesis in C. bungei and thus provides a potential target for the improvement of wood quality in C. bungei.

Indexed as

Plant ProteinsTranscription FactorsWoodCambiumGene Expression Regulation, PlantLigninPlants, Genetically ModifiedPopulusXylemLigninPlant ProteinsTranscription Factorscambium activityCatalpa bungeifunctionally antagonistic modulelignin biosynthesistension wood formationtranscriptional regulation

Identifiers

PMID42021465
PMCPMC13353648

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Registered trials

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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.