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Yang L, Zhu M, Yang Y, Wang K, Che Y, Yang S, Wang J, Yu X, Li L, Wu S, Palme K, Li X. CDC48B facilitates the intercellular trafficking of SHORT-ROOT during radial patterning in roots. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:843-858. [PMID: 35088574 DOI: 10.1111/jipb.13231] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
CELL DIVISION CONTROL PROTEIN48 (CDC48) is essential for membrane fusion, protein degradation, and other cellular processes. Here, we revealed the crucial role of CDC48B in regulating periclinal cell division in roots by analyzing the recessive gen1 mutant. We identified the GEN1 gene through map-based cloning and verified that GEN1 encodes CDC48B. gen1 showed severely inhibited root growth, increased periclinal cell division in the endodermis, defective middle cortex (MC) formation, and altered ground tissue patterning in roots. Consistent with these phenotypes, CYCLIND 6;1(CYCD6;1), a periclinal cell division marker, was upregulated in gen1 compared to Col-0. The ratio of SHRpro :SHR-GFP fluorescence in pre-dividing nuclei versus the adjacent stele decreased by 33% in gen1, indicating that the trafficking of SHORT-ROOT (SHR) decreased in gen1 when endodermal cells started to divide. These findings suggest that the loss of function of CDC48B inhibits the intercellular trafficking of SHR from the stele to the endodermis, thereby decreasing SHR accumulation in the endodermis. These findings shed light on the crucial role of CDC48B in regulating periclinal cell division in roots.
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Affiliation(s)
- Lihui Yang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Institute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Schänzlestrasse 1, Freiburg, D-79104, Germany
- Department of Genetics, Northwest Women's and Children's Hospital, Xi'an, 710061, China
| | - Mingyue Zhu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Shandong Engineering Research Center of Plant-Microbia Restoration for Saline-alkali Land, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Sino German Joint Research Center for Agricultural Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
| | - Yi Yang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Shandong Engineering Research Center of Plant-Microbia Restoration for Saline-alkali Land, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Sino German Joint Research Center for Agricultural Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
| | - Ke Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Shandong Engineering Research Center of Plant-Microbia Restoration for Saline-alkali Land, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Sino German Joint Research Center for Agricultural Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
| | - Yulei Che
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Shandong Engineering Research Center of Plant-Microbia Restoration for Saline-alkali Land, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Sino German Joint Research Center for Agricultural Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
| | - Shurui Yang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Shandong Engineering Research Center of Plant-Microbia Restoration for Saline-alkali Land, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Sino German Joint Research Center for Agricultural Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
| | - Jinxiang Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources & College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510640, China
| | - Xin Yu
- Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Lixin Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Shuang Wu
- FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Klaus Palme
- Institute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Schänzlestrasse 1, Freiburg, D-79104, Germany
- Sino German Joint Research Center for Agricultural Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
| | - Xugang Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Shandong Engineering Research Center of Plant-Microbia Restoration for Saline-alkali Land, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
- Sino German Joint Research Center for Agricultural Biology, College of Life Sciences, Shandong Agricultural University, Daizong Street 61, Tai'an, 271018, China
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da Silveira SR, Koehler AD, Mendes Gomes ACM, Cabral GB, de Campos Carneiro VT, de Alencar Dusi DM, Martinelli AP. Somatic Embryogenesis of Brachiaria brizantha (Syn. Urochloa brizantha) Analyzed by In Situ Hybridization. Methods Mol Biol 2022; 2527:247-263. [PMID: 35951196 DOI: 10.1007/978-1-0716-2485-2_18] [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] [Indexed: 06/15/2023]
Abstract
In situ hybridization with mRNA probes enables the detection and localization of gene expression in plant somatic embryogenesis samples. BbrizSERK is a gene that is expressed in embryogenic cells and tissues of Brachiaria. Here we describe methods used for in situ hybridization to localize BbrizSERK transcripts during somatic embryogenesis of Brachiaria brizantha according to the plant material and observations intended, using paraffin or butyl methyl methacrylate resin-embedded samples, as well as a method for whole-mount preparation applicable for the analysis of other genes involved in embryogenic processes, along with other in vitro processes.
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Affiliation(s)
- Sylvia Rodrigues da Silveira
- Plant Biotechnology Lab, Center of Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, Brazil
| | - Andréa Dias Koehler
- Plant Biotechnology Lab, Center of Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, Brazil
| | - Ana Cristina M Mendes Gomes
- Brazilian Agricultural Research Corporation (Embrapa), Embrapa Genetic Resources and Biotechnology, Brasilia, DF, Brazil
| | - Glaucia Barbosa Cabral
- Brazilian Agricultural Research Corporation (Embrapa), Embrapa Genetic Resources and Biotechnology, Brasilia, DF, Brazil
| | | | - Diva Maria de Alencar Dusi
- Brazilian Agricultural Research Corporation (Embrapa), Embrapa Genetic Resources and Biotechnology, Brasilia, DF, Brazil.
| | - Adriana Pinheiro Martinelli
- Plant Biotechnology Lab, Center of Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, Brazil.
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Gautam V, Singh A, Yadav S, Singh S, Kumar P, Sarkar Das S, Sarkar AK. Conserved LBL1-ta-siRNA and miR165/166 -RLD1/2 modules regulate root development in maize. Development 2021; 148:dev.190033. [PMID: 33168582 DOI: 10.1242/dev.190033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 11/02/2020] [Indexed: 01/25/2023]
Abstract
Root system architecture and anatomy of monocotyledonous maize is significantly different from dicotyledonous model Arabidopsis The molecular role of non-coding RNA (ncRNA) is poorly understood in maize root development. Here, we address the role of LEAFBLADELESS1 (LBL1), a component of maize trans-acting short-interfering RNA (ta-siRNA), in maize root development. We report that root growth, anatomical patterning, and the number of lateral roots (LRs), monocot-specific crown roots (CRs) and seminal roots (SRs) are significantly affected in lbl1-rgd1 mutant, which is defective in production of ta-siRNA, including tasiR-ARF that targets AUXIN RESPONSE FACTOR3 (ARF3) in maize. Altered accumulation and distribution of auxin, due to differential expression of auxin biosynthesis and transporter genes, created an imbalance in auxin signalling. Altered expression of microRNA165/166 (miR165/166) and its targets, ROLLED1 and ROLLED2 (RLD1/2), contributed to the changes in lbl1-rgd1 root growth and vascular patterning, as was evident by the altered root phenotype of Rld1-O semi-dominant mutant. Thus, LBL1/ta-siRNA module regulates root development, possibly by affecting auxin distribution and signalling, in crosstalk with miR165/166-RLD1/2 module. We further show that ZmLBL1 and its Arabidopsis homologue AtSGS3 proteins are functionally conserved.
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Affiliation(s)
- Vibhav Gautam
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India.,Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Archita Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Sandeep Yadav
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Sharmila Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Pramod Kumar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Shabari Sarkar Das
- Department of Botany and Forestry, Vidyasagar University, Midnapore, WB 721104, India
| | - Ananda K Sarkar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
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