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Hao Y, Chu L, He X, Zhao S, Tang F. PagEXPA1 combines with PagCDKB2;1 to regulate plant growth and the elongation of fibers in Populus alba × Populus glandulosa. Int J Biol Macromol 2024; 268:131559. [PMID: 38631576 DOI: 10.1016/j.ijbiomac.2024.131559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/25/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
Expansins are important plant cell wall proteins. They can loosen and soften the cell walls and lead to wall extension and cell expansion. To investigate their role in wood formation and fiber elongation, the PagEXPA1 that highly expressed in cell differentiation and expansion tissues was cloned from 84K poplar (Populus alba × P. glandulosa). The subcellular localization showed that PagEXPA1 located in the cell wall and it was highly expressed in primary stems and young leaves. Compared with non-transgenic 84K poplar, overexpression of PagEXPA1 can promote plant-growth, lignification, and fiber cell elongation, while PagEXPA1 Cas9-editing mutant lines exhibited the opposite phenotype. Transcriptome analysis revealed that DEGs were mainly enriched in some important processes, which are associated with cell wall formation and cellulose synthesis. The protein interaction prediction and expression analysis showed that PagCDKB2:1 and PagEXPA1 might have an interaction relationship. The luciferase complementary assay and bimolecular fluorescence complementary assay validated that PagEXPA1 can combined with PagCDKB2;1. So they promoted the expansion of xylem vascular tissues and the development of poplar though participating in the regulation of cell division and differentiation by programming the cell-cycle. It provides good foundation for molecular breeding of fast-growing and high-quality poplar varieties.
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Affiliation(s)
- Yuanyuan Hao
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
| | - Liwei Chu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China; College of Life and Health, Dalian University, Dalian, Liaoning 116622, China.
| | - Xuejiao He
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Shutang Zhao
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China; Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China.
| | - Fang Tang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China; Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China.
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Wu X, Wang Z, Du A, Gao H, Liang J, Yu W, Yu H, Fan S, Chen Q, Guo J, Xiao Y, Peng F. Transcription factor LBD16 targets cell wall modification/ion transport genes in peach lateral root formation. PLANT PHYSIOLOGY 2024; 194:2472-2490. [PMID: 38217865 DOI: 10.1093/plphys/kiae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/30/2023] [Accepted: 12/14/2023] [Indexed: 01/15/2024]
Abstract
LATERAL ORGAN BOUNDARIES DOMAIN/ASYMMETRIC LEAVES2-LIKEs (LBDs/ASLs) are plant-specific transcription factors that function downstream of auxin-regulated lateral root (LR) formation. Our previous research found that PpLBD16 positively regulates peach (Prunus persica) LR formation. However, the downstream regulatory network and target genes of PpLBD16 are still largely unknown. Here, we constructed a PpLBD16 homologous overexpression line and a PpLBD16 silenced line. We found that overexpressing PpLBD16 promoted peach root initiation, while silencing PpLBD16 inhibited peach root formation. Through RNA sequencing (RNA-seq) analysis of roots from PpLBD16 overexpression and silenced lines, we discovered that genes positively regulated by PpLBD16 were closely related to cell wall synthesis and degradation, ion/substance transport, and ion binding and homeostasis. To further detect the binding motifs and potential target genes of PpLBD16, we performed DNA-affinity purification sequencing (DAP-seq) analysis in vitro. PpLBD16 preferentially bound to CCNGAAANNNNGG (MEME-1), [C/T]TTCT[C/T][T/C] (MEME-2), and GCGGCGG (ABR1) motifs. By combined analysis of RNA-seq and DAP-seq data, we screened candidate target genes for PpLBD16. We demonstrated that PpLBD16 bound and activated the cell wall modification-related genes EXPANSIN-B2 (PpEXPB2) and SUBTILISIN-LIKE PROTEASE 1.7 (PpSBT1.7), the ion transport-related gene CYCLIC NUCLEOTIDE-GATED ION CHANNEL 1 (PpCNGC1) and the polyphenol oxidase (PPO)-encoding gene PpPPO, thereby controlling peach root organogenesis and promoting LR formation. Moreover, our results displayed that PpLBD16 and its target genes are involved in peach LR primordia development. Overall, this work reveals the downstream regulatory network and target genes of PpLBD16, providing insights into the molecular network of LBD16-mediated LR development.
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Affiliation(s)
- Xuelian Wu
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Zhe Wang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Anqi Du
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Huaifeng Gao
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Jiahui Liang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Wenying Yu
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Haixiang Yu
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Shihao Fan
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Qiuju Chen
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Jian Guo
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Yuansong Xiao
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
| | - Futian Peng
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An 271018, China
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Chang F, Liu L, Wang Y, Liu J, Bai X. Impact of social networks on fertilizer use efficiency in China: Evidence from kiwifruit production in Shaanxi province. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:101841-101857. [PMID: 37659020 DOI: 10.1007/s11356-023-29508-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/22/2023] [Indexed: 09/05/2023]
Abstract
Improving fertilizer use efficiency (FUE) is an effective way to reduce the fertilizer use and non-point source pollution in agriculture production in China. Existing research related to fertilizer use efficiency ignores the impact of famers' social networks, which can significantly affect the fertilizer use and its efficiency. This paper analyzed the impact of social networks on fertilizer use efficiency and the mediator effect of green fertilization technology adoption, based on the calculation of fertilizer use efficiency of 569 kiwifruit farmers in Shaanxi province of China surveyed in 2021 by using stochastic frontier method. The results show that the FUE of kiwifruit production ranged within 0.1027-0.9945, with an average value of 0.333, which showed great variability, and fertilizer input had an average 66.7% reduction potential without reducing output. Social networks and its four dimensions all had a significant positive impact on FUE, in which network trust and network learning had a greater impact on FUE. Farmers' adoption of green fertilization technology played a positive mediator effect in the process of social networks influencing their fertilizer use efficiency, which was mainly promoted by network trust and learning. Farmers' experience in agricultural production, joining the cooperative, the quantity of village agricultural supply points had a significant positive impact on fertilizer use efficiency, while age and gentle of the head of household had a significant negative impact of fertilizer use efficiency. Planting scale had a U-shape impact on FUE. Policies aimed at improving FUE and reducing non-point source pollution should, therefore, focus on improving the social networks of farmers, especially young farmers, strengthening network trust, promoting network learning, network reciprocity and network interaction, strengthening the research and development and extension of green fertilization technology, encouraging farmers to join agricultural cooperative, improving village production conditions, guiding sustainable agricultural production.
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Affiliation(s)
- Fangyuan Chang
- College of Economics and Management, Northwest A&F University, NO. 3 Taicheng Road, Yangling, 712100, Shaanxi, China
| | - Li Liu
- Collage of Economics and Management, Shanxi Normal University, Taiyuan, 030000, Shanxi, China
| | - Yu Wang
- College of Economics and Management, Northwest A&F University, NO. 3 Taicheng Road, Yangling, 712100, Shaanxi, China
| | - Jundi Liu
- College of Economics and Management, Northwest A&F University, NO. 3 Taicheng Road, Yangling, 712100, Shaanxi, China
| | - Xiuguang Bai
- College of Economics and Management, Northwest A&F University, NO. 3 Taicheng Road, Yangling, 712100, Shaanxi, China.
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Basso MF, Lourenço-Tessutti IT, Moreira-Pinto CE, Mendes RAG, Pereira DG, Grandis A, Macedo LLP, Macedo AF, Gomes ACMM, Arraes FBM, Togawa RC, do Carmo Costa MM, Marcelino-Guimaraes FC, Silva MCM, Floh EIS, Buckeridge MS, de Almeida Engler J, Grossi-de-Sa MF. Overexpression of the GmEXPA1 gene reduces plant susceptibility to Meloidogyne incognita. PLANT CELL REPORTS 2023; 42:137-152. [PMID: 36348064 DOI: 10.1007/s00299-022-02941-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The overexpression of the soybean GmEXPA1 gene reduces plant susceptibility to M. incognita by the increase of root lignification. Plant expansins are enzymes that act in a pH-dependent manner in the plant cell wall loosening and are associated with improved tolerance or resistance to abiotic or biotic stresses. Plant-parasitic nematodes (PPN) can alter the expression profile of several expansin genes in infected root cells. Studies have shown that overexpression or downregulation of particular expansin genes can reduce plant susceptibility to PPNs. Root-knot nematodes (RKN) are obligate sedentary endoparasites of the genus Meloidogyne spp. of which M. incognita is one of the most reported species. Herein, using a transcriptome dataset and real-time PCR assays were identified an expansin A gene (GmEXPA1; Glyma.02G109100) that is upregulated in the soybean nematode-resistant genotype PI595099 compared to the susceptible cultivar BRS133 during plant parasitism by M. incognita. To understand the role of the GmEXPA1 gene during the interaction between soybean plant and M. incognita were generated stable A. thaliana and N. tabacum transgenic lines. Remarkably, both A. thaliana and N. tabacum transgenic lines overexpressing the GmEXPA1 gene showed reduced susceptibility to M. incognita. Furthermore, plant growth, biomass accumulation, and seed yield were not affected in these transgenic lines. Interestingly, significant upregulation of the NtACC oxidase and NtEFE26 genes, involved in ethylene biosynthesis, and NtCCR and Nt4CL genes, involved in lignin biosynthesis, was observed in roots of the N. tabacum transgenic lines, which also showed higher lignin content. These data suggested a possible link between GmEXPA1 gene expression and increased lignification of the root cell wall. Therefore, these data support that engineering of the GmEXPA1 gene in soybean offers a powerful biotechnology tool to assist in RKN management.
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Affiliation(s)
- Marcos Fernando Basso
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Isabela Tristan Lourenço-Tessutti
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Clidia Eduarda Moreira-Pinto
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Reneida Aparecida Godinho Mendes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Debora Gonçalves Pereira
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Adriana Grandis
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | - Leonardo Lima Pepino Macedo
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Amanda Ferreira Macedo
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | | | - Fabrício Barbosa Monteiro Arraes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Roberto Coiti Togawa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Marcos Mota do Carmo Costa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
| | - Francismar Corrêa Marcelino-Guimaraes
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
- Embrapa Soybean, Londrina, PR, 86001-970, Brazil
| | - Maria Cristina Mattar Silva
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Eny Iochevet Segal Floh
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | | | - Janice de Almeida Engler
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
- INRAE, Université Côte d'Azur, CNRS, ISA, 06903, Sophia Antipolis, France
| | - Maria Fatima Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil.
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil.
- Catholic University of Brasília, Brasília, DF, 71966-700, Brazil.
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