1
|
Li T, Zhou X, Wang Y, Liu X, Fan Y, Li R, Zhang H, Xu Y. AtCIPK20 regulates microtubule stability to mediate stomatal closure under drought stress in Arabidopsis. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39189953 DOI: 10.1111/pce.15112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 08/05/2024] [Accepted: 08/12/2024] [Indexed: 08/28/2024]
Abstract
Drought stress is a common abiotic challenge that profoundly impacts plant growth and development. As sessile organisms, plants rely on various physiological and morphological adaptations to cope with drought conditions. The CIPK (calcineurin B-like protein-interacting protein kinase) family proteins play a pivotal role in mediating plant responses to abiotic stress through modulation of cellular membrane events via the CBL-CIPK complex. However, reports documenting the CIPKs' regulation of non-membrane events are scant. In this study, we discovered a novel subcellular localisation pattern of the AtCIPK20 protein of Arabidopsis, specifically to cortical microtubules (cMT), which is distinct from previously reported localisation patterns of plant CIPKs. AtCIPK20 regulates ABA-induced loss of cMT organisation in guard cells, thereby facilitating stomatal closure, mitigating leaf water loss, and protecting plants from drought stress in Arabidopsis. The C-terminal regulatory domain of AtCIPK20 governs its cMT targeting, whereas the interaction of AtCIPK20 with its CBL partners disrupts this localisation. Notably, the cMT targeting characteristic of AtCIPK20 is not exclusive, as several other CIPK members in Arabidopsis, maize, and rice exhibit similar localisation patterns. These findings broaden our current understanding of the role of plant CIPK members in abiotic stress resistance and suggest that future exploration of CIPK molecular functions should adopt a more comprehensive perspective.
Collapse
Affiliation(s)
- Tao Li
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Xuna Zhou
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Yixiao Wang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Xueqin Liu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Yudong Fan
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Ruiqi Li
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Huiyong Zhang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Yufang Xu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| |
Collapse
|
2
|
Zhang R, Ren Y, Wu H, Yang Y, Yuan M, Liang H, Zhang C. Mapping of Genetic Locus for Leaf Trichome Formation in Chinese Cabbage Based on Bulked Segregant Analysis. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10040771. [PMID: 33919922 PMCID: PMC8070908 DOI: 10.3390/plants10040771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/11/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Chinese cabbage is a leafy vegetable, and its leaves are the main edible organs. The formation of trichomes on the leaves can significantly affect its taste, so studying this phenomenon is of great significance for improving the quality of Chinese cabbage. In this study, two varieties of Chinese cabbage, W30 with trichome leaves and 082 with glabrous leaves, were crossed to generate F1 and F1 plants, which were self-fertilized to develop segregating populations with trichome or glabrous morphotypes. The two bulks of the different segregating populations were used to conduct bulked segregant analysis (BSA). A total of 293.4 M clean reads were generated from the samples, and plants from the trichome leaves (AL) bulk and glabrous leaves (GL) bulk were identified. Between the two DNA pools generated from the trichome and glabrous plants, 55,048 SNPs and 272 indels were generated. In this study, three regions (on chromosomes 6, 10 and scaffold000100) were identified, and the annotation revealed three candidate genes that may participate in the formation of leaf trichomes. These findings suggest that the three genes-Bra025087 encoding a cyclin family protein, Bra035000 encoding an ATP-binding protein/kinase/protein kinase/protein serine/threonine kinase and Bra033370 encoding a WD-40 repeat family protein-influence the formation of trichomes by participating in trichome morphogenesis (GO: 0010090). These results demonstrate that BSA can be used to map genes associated with traits and provide new insights into the molecular mechanism of leafy trichome formation in Chinese cabbage.
Collapse
|
3
|
Aono AH, Pimenta RJG, Garcia ALB, Correr FH, Hosaka GK, Carrasco MM, Cardoso-Silva CB, Mancini MC, Sforça DA, dos Santos LB, Nagai JS, Pinto LR, Landell MGDA, Carneiro MS, Balsalobre TW, Quiles MG, Pereira WA, Margarido GRA, de Souza AP. The Wild Sugarcane and Sorghum Kinomes: Insights Into Expansion, Diversification, and Expression Patterns. FRONTIERS IN PLANT SCIENCE 2021; 12:668623. [PMID: 34305969 PMCID: PMC8294386 DOI: 10.3389/fpls.2021.668623] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/17/2021] [Indexed: 05/11/2023]
Abstract
The protein kinase (PK) superfamily is one of the largest superfamilies in plants and the core regulator of cellular signaling. Despite this substantial importance, the kinomes of sugarcane and sorghum have not been profiled. Here, we identified and profiled the complete kinomes of the polyploid Saccharum spontaneum (Ssp) and Sorghum bicolor (Sbi), a close diploid relative. The Sbi kinome was composed of 1,210 PKs; for Ssp, we identified 2,919 PKs when disregarding duplications and allelic copies, and these were related to 1,345 representative gene models. The Ssp and Sbi PKs were grouped into 20 groups and 120 subfamilies and exhibited high compositional similarities and evolutionary divergences. By utilizing the collinearity between the species, this study offers insights into Sbi and Ssp speciation, PK differentiation and selection. We assessed the PK subfamily expression profiles via RNA-Seq and identified significant similarities between Sbi and Ssp. Moreover, coexpression networks allowed inference of a core structure of kinase interactions with specific key elements. This study provides the first categorization of the allelic specificity of a kinome and offers a wide reservoir of molecular and genetic information, thereby enhancing the understanding of Sbi and Ssp PK evolutionary history.
Collapse
Affiliation(s)
- Alexandre Hild Aono
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, Brazil
| | - Ricardo José Gonzaga Pimenta
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, Brazil
| | - Ana Letycia Basso Garcia
- Department of Genetics, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, Brazil
| | - Fernando Henrique Correr
- Department of Genetics, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, Brazil
| | - Guilherme Kenichi Hosaka
- Department of Genetics, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, Brazil
| | - Marishani Marin Carrasco
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, Brazil
| | | | - Melina Cristina Mancini
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, Brazil
| | - Danilo Augusto Sforça
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, Brazil
| | - Lucas Borges dos Santos
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, Brazil
| | - James Shiniti Nagai
- Faculty of Medicine, Institute for Computational Genomics, RWTH Aachen University, Aachen, Germany
| | - Luciana Rossini Pinto
- Advanced Center of Sugarcane Agrobusiness Technological Research, Agronomic Institute of Campinas (IAC), Ribeirão Preto, Brazil
| | | | - Monalisa Sampaio Carneiro
- Departamento de Biotecnologia e Produção Vegetal e Animal, Centro de Ciências Agrárias, Universidade Federal de São Carlos (UFSCar), São Carlos, Brazil
| | - Thiago Willian Balsalobre
- Departamento de Biotecnologia e Produção Vegetal e Animal, Centro de Ciências Agrárias, Universidade Federal de São Carlos (UFSCar), São Carlos, Brazil
| | - Marcos Gonçalves Quiles
- Instituto de Ciência e Tecnologia (ICT), Universidade Federal de São Paulo (Unifesp), São José dos Campos, Brazil
| | | | | | - Anete Pereira de Souza
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, Brazil
- Department of Plant Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
- *Correspondence: Anete Pereira de Souza,
| |
Collapse
|
4
|
Hennessey KM, Alas GCM, Rogiers I, Li R, Merritt EA, Paredez AR. Nek8445, a protein kinase required for microtubule regulation and cytokinesis in Giardia lamblia. Mol Biol Cell 2020; 31:1611-1622. [PMID: 32459558 PMCID: PMC7521801 DOI: 10.1091/mbc.e19-07-0406] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Giardia has 198 Nek kinases whereas humans have only 11. Giardia has a complex microtubule cytoskeleton that includes eight flagella and several unique microtubule arrays that are utilized for parasite attachment and facilitation of rapid mitosis and cytokinesis. The need to regulate these structures may explain the parallel expansion of the number of Nek family kinases. Here we use live and fixed cell imaging to uncover the role of Nek8445 in regulating Giardia cell division. We demonstrate that Nek8445 localization is cell cycle regulated and this kinase has a role in regulating overall microtubule organization. Nek8445 depletion results in short flagella, aberrant ventral disk organization, loss of the funis, defective axoneme exit, and altered cell shape. The axoneme exit defect is specific to the caudal axonemes, which exit from the posterior of the cell, and this defect correlates with rounding of the cell posterior and loss of the funis. Our findings implicate a role for the funis in establishing Giardia’s cell shape and guiding axoneme docking. On a broader scale our results support the emerging view that Nek family kinases have a general role in regulating microtubule organization.
Collapse
Affiliation(s)
| | - Germain C M Alas
- Department of Biology, University of Washington, Seattle, WA 98195
| | - Ilse Rogiers
- Department of Biochemistry, University of Washington, Seattle, WA 98195
| | - Renyu Li
- Department of Biology, University of Washington, Seattle, WA 98195
| | - Ethan A Merritt
- Department of Biochemistry, University of Washington, Seattle, WA 98195
| | | |
Collapse
|
5
|
Lee YRJ, Liu B. Microtubule nucleation for the assembly of acentrosomal microtubule arrays in plant cells. THE NEW PHYTOLOGIST 2019; 222:1705-1718. [PMID: 30681146 DOI: 10.1111/nph.15705] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 01/07/2019] [Indexed: 05/15/2023]
Abstract
Contents Summary I. Introduction II. MT arrays in plant cells III. γ-Tubulin and MT nucleation IV. MT nucleation sites or flexible MTOCs in plant cells V. MT-dependent MT nucleation VI. Generating new MTs for spindle assembly VII. Generation of MTs for phragmoplast expansion during cytokinesis VIII. MT generation for the cortical MT array IX. MT nucleation: looking forward Acknowledgements References SUMMARY: Cytoskeletal microtubules (MTs) have a multitude of functions including intracellular distribution of molecules and organelles, cell morphogenesis, as well as segregation of the genetic material and separation of the cytoplasm during cell division among eukaryotic organisms. In response to internal and external cues, eukaryotic cells remodel their MT network in a regulated manner in order to assemble physiologically important arrays for cell growth, cell proliferation, or for cells to cope with biotic or abiotic stresses. Nucleation of new MTs is a critical step for MT remodeling. Although many key factors contributing to MT nucleation and organization are well conserved in different kingdoms, the centrosome, representing the most prominent microtubule organizing centers (MTOCs), disappeared during plant evolution as angiosperms lack the structure. Instead, flexible MTOCs may emerge on the plasma membrane, the nuclear envelope, and even organelles depending on types of cells and organisms and/or physiological conditions. MT-dependent MT nucleation is particularly noticeable in plant cells because it accounts for the primary source of MT generation for assembling spindle, phragmoplast, and cortical arrays when the γ-tubulin ring complex is anchored and activated by the augmin complex. It is intriguing what proteins are associated with plant-specific MTOCs and how plant cells activate or inactivate MT nucleation activities in spatiotemporally regulated manners.
Collapse
Affiliation(s)
- Yuh-Ru Julie Lee
- Department of Plant Biology, University of California, Davis, CA, 95616, USA
| | - Bo Liu
- Department of Plant Biology, University of California, Davis, CA, 95616, USA
| |
Collapse
|
6
|
Kesawat MS, Kim DK, Zeba N, Suh MC, Xia X, Hong CB. Ectopic RING zinc finger gene from hot pepper induces totally different genes in lettuce and tobacco. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2018; 38:70. [PMID: 29780273 PMCID: PMC5956013 DOI: 10.1007/s11032-018-0812-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 03/27/2018] [Indexed: 05/28/2023]
Abstract
Advances in molecular biology have improved crops through transferring genes from one organism to new hosts, and these efforts have raised concerns about potential unexpected outcomes. Here, we provide evidence that a gene with a specific function in one organism can yield completely different effects in a new host. CaRZFP1 is a C3HC4-type RING zinc finger protein gene previously isolated from a cDNA library for heat-stressed hot pepper. In our previous work investigating in vivo CaRZFP1 function, we transferred CaRZFP1 into tobacco; transgenic tobacco exhibited enhanced growth and tolerance to abiotic stresses. As further analysis of CaRZFP1 ectopic expression in a heterologous host plant, here we mobilized and constitutively overexpressed CaRZFP1 in lettuce. In contrast to tobacco, transgenic lettuce exhibited poorer growth and delayed flowering compared with vector-only controls. To identify genes that might be involved in this phenotypic effect, transcriptome analyses on transgenic plants of both species were performed, uncovering dozens of genes that reflect the different outcomes between tobacco and lettuce. These included protein kinase, transcriptional factor, transporter protein, hormone and metabolism-related genes, and some unannotated genes. The opposite effects of CaRZFP1 ectopic expression in lettuce and tobacco address concerns of unexpectedly different outcomes in different host species.
Collapse
Affiliation(s)
- Mahipal Singh Kesawat
- School of Biological Sciences, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 151-742 South Korea
| | - Dong Kyun Kim
- School of Biological Sciences, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 151-742 South Korea
| | - Naheed Zeba
- Present Address: Department of Genetics and Plant Breeding, Sher-e-Bangla Agricultural University, Dhaka, 1207 Bangladesh
| | - Mi Chung Suh
- Present Address: Department of Bioenergy Science and Technology, Chonnam National University, Gwangju, 500-757 South Korea
| | - Xinli Xia
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083 People’s Republic of China
| | - Choo Bong Hong
- School of Biological Sciences, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 151-742 South Korea
| |
Collapse
|
7
|
Otani K, Ishizaki K, Nishihama R, Takatani S, Kohchi T, Takahashi T, Motose H. An evolutionarily conserved NIMA-related kinase directs rhizoid tip growth in the basal land plant Marchantia polymorpha. Development 2018; 145:dev.154617. [PMID: 29440300 DOI: 10.1242/dev.154617] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 01/23/2018] [Indexed: 12/30/2022]
Abstract
Tip growth is driven by turgor pressure and mediated by the polarized accumulation of cellular materials. How a single polarized growth site is established and maintained is unclear. Here, we analyzed the function of NIMA-related protein kinase 1 (MpNEK1) in the liverwort Marchantia polymorpha In the wild type, rhizoid cells differentiate from the ventral epidermis and elongate through tip growth to form hair-like protrusions. In Mpnek1 knockout mutants, rhizoids underwent frequent changes in growth direction, resulting in a twisted and/or spiral morphology. The functional MpNEK1-Citrine protein fusion localized to microtubule foci in the apical growing region of rhizoids. Mpnek1 knockouts exhibited increases in both microtubule density and bundling in the apical dome of rhizoids. Treatment with the microtubule-stabilizing drug taxol phenocopied the Mpnek1 knockout. These results suggest that MpNEK1 directs tip growth in rhizoids through microtubule organization. Furthermore, MpNEK1 expression rescued ectopic outgrowth of epidermal cells in the Arabidopsis thaliana nek6 mutant, strongly supporting an evolutionarily conserved NEK-dependent mechanism of directional growth. It is possible that such a mechanism contributed to the evolution of the early rooting system in land plants.
Collapse
Affiliation(s)
- Kento Otani
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Kimitsune Ishizaki
- Department of Biology, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Ryuichi Nishihama
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Shogo Takatani
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Takayuki Kohchi
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Taku Takahashi
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Hiroyasu Motose
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| |
Collapse
|
8
|
Lee YRJ, Hiwatashi Y, Hotta T, Xie T, Doonan JH, Liu B. The Mitotic Function of Augmin Is Dependent on Its Microtubule-Associated Protein Subunit EDE1 in Arabidopsis thaliana. Curr Biol 2017; 27:3891-3897.e4. [DOI: 10.1016/j.cub.2017.11.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/30/2017] [Accepted: 11/09/2017] [Indexed: 01/13/2023]
|
9
|
Takatani S, Ozawa S, Yagi N, Hotta T, Hashimoto T, Takahashi Y, Takahashi T, Motose H. Directional cell expansion requires NIMA-related kinase 6 (NEK6)-mediated cortical microtubule destabilization. Sci Rep 2017; 7:7826. [PMID: 28798328 PMCID: PMC5552743 DOI: 10.1038/s41598-017-08453-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 07/12/2017] [Indexed: 11/09/2022] Open
Abstract
Plant cortical microtubules align perpendicular to the growth axis to determine the direction of cell growth. However, it remains unclear how plant cells form well-organized cortical microtubule arrays in the absence of a centrosome. In this study, we investigated the functions of Arabidopsis NIMA-related kinase 6 (NEK6), which regulates microtubule organization during anisotropic cell expansion. Quantitative analysis of hypocotyl cell growth in the nek6-1 mutant demonstrated that NEK6 suppresses ectopic outgrowth and promotes cell elongation in different regions of the hypocotyl. Loss of NEK6 function led to excessive microtubule waving and distortion, implying that NEK6 suppresses the aberrant cortical microtubules. Live cell imaging showed that NEK6 localizes to the microtubule lattice and to the shrinking plus and minus ends of microtubules. In agreement with this observation, the induced overexpression of NEK6 reduced and disorganized cortical microtubules and suppressed cell elongation. Furthermore, we identified five phosphorylation sites in β-tubulin that serve as substrates for NEK6 in vitro. Alanine substitution of the phosphorylation site Thr166 promoted incorporation of mutant β-tubulin into microtubules. Taken together, these results suggest that NEK6 promotes directional cell growth through phosphorylation of β-tubulin and the resulting destabilization of cortical microtubules.
Collapse
Affiliation(s)
- Shogo Takatani
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama, 700-8530, Japan
| | - Shinichiro Ozawa
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama, 700-8530, Japan.,Japan Science and Technology Agency, 4-1-8 Kawaguchi, Saitama, 332-0012, Japan
| | - Noriyoshi Yagi
- Graduate School of Biological Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan.,Department of Applied Biological Science, Tokyo University of Science, Noda, Chiba, 278-8510, Japan
| | - Takashi Hotta
- Graduate School of Biological Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan.,Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD, 21218, USA
| | - Takashi Hashimoto
- Graduate School of Biological Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan
| | - Yuichiro Takahashi
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama, 700-8530, Japan.,Japan Science and Technology Agency, 4-1-8 Kawaguchi, Saitama, 332-0012, Japan
| | - Taku Takahashi
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama, 700-8530, Japan
| | - Hiroyasu Motose
- Department of Biological Science, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama, 700-8530, Japan.
| |
Collapse
|
10
|
Pan WJ, Tao JJ, Cheng T, Shen M, Ma JB, Zhang WK, Lin Q, Ma B, Chen SY, Zhang JS. Soybean NIMA-Related Kinase1 Promotes Plant Growth and Improves Salt and Cold Tolerance. PLANT & CELL PHYSIOLOGY 2017; 58:1268-1278. [PMID: 28444301 DOI: 10.1093/pcp/pcx060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 04/17/2017] [Indexed: 05/15/2023]
Abstract
NEK (NIMA-related kinase) is known as a family of serine/threonine kinases which mainly participate in microtubule-related mitotic events in fungi, mammals and other eukaryotes. Our previous studies found that Arabidopsis NEK6 plays an important role in plant response to abiotic stress. We further investigated roles of the NEK family in soybean and found that at least eight members can respond to abiotic stresses. Among them, only GmNEK1, a novel NEK member which is distantly related to Arabidopsis NEK6, enhanced plant growth and promoted salt and cold tolerance in transgenic Arabidopsis plants. The growth of soybean plants harboring GmNEK1-overexpressing hairy roots under saline condition was also improved. A series of stress-related genes including RH3, CORI3 and ALDH10A8 were found to be up-regulated in GmNEK1-overexpressing Arabidopsis plants and soybean hairy roots. Moreover, soybean plants with GmRH3-overexpressing hairy roots exhibited increased salt tolerance, while soybean plants with GmRH3-RNAi (RNA interference) roots were more sensitive to salt stress than the wild-type plants. Our study uncovers a novel role for GmNEK1 in promoting plant adaptive growth under adverse conditions at least partially through up-regulation of GmRH3. Manipulation of these genes in soybean or other crops may improve growth and production under stress conditions.
Collapse
Affiliation(s)
- Wen-Jia Pan
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Jun Tao
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tong Cheng
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Shen
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jin-Biao Ma
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang, China
| | - Wan-Ke Zhang
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Qin Lin
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Biao Ma
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Shou-Yi Chen
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jin-Song Zhang
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|