1
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Symonds K, Teresinski HJ, Hau B, Dwivedi V, Belausov E, Bar-Sinai S, Tominaga M, Haraguchi T, Sadot E, Ito K, Snedden WA. Functional characterization of calmodulin-like proteins, CML13 and CML14, as novel light chains of Arabidopsis class VIII myosins. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:2313-2329. [PMID: 38280207 PMCID: PMC11272076 DOI: 10.1093/jxb/erae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/24/2024] [Indexed: 01/29/2024]
Abstract
Myosins are important motor proteins that associate with the actin cytoskeleton. Structurally, myosins function as heteromeric complexes where smaller light chains, such as calmodulin (CaM), bind to isoleucine-glutamine (IQ) domains in the neck region to facilitate mechano-enzymatic activity. We recently identified Arabidopsis CaM-like (CML) proteins CML13 and CML14 as interactors of proteins containing multiple IQ domains, including a myosin VIII. Here, we demonstrate that CaM, CML13, and CML14 bind the neck region of all four Arabidopsis myosin VIII isoforms. Among CMLs tested for binding to myosins VIIIs, CaM, CML13, and CML14 gave the strongest signals using in planta split-luciferase protein interaction assays. In vitro, recombinant CaM, CML13, and CML14 showed specific, high-affinity, calcium-independent binding to the IQ domains of myosin VIIIs. CaM, CML13, and CML14 co-localized to plasma membrane-bound puncta when co-expressed with red fluorescent protein-myosin fusion proteins containing IQ and tail domains of myosin VIIIs. In vitro actin motility assays using recombinant myosin VIIIs demonstrated that CaM, CML13, and CML14 function as light chains. Suppression of CML13 or CML14 expression using RNA silencing resulted in a shortened-hypocotyl phenotype, similar to that observed in a quadruple myosin mutant, myosin viii4KO. Collectively, our data indicate that Arabidopsis CML13 and CML14 are novel myosin VIII light chains.
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Affiliation(s)
- Kyle Symonds
- Department of Biology, Queen’s University, Kingston, ON, Canada
| | | | - Bryan Hau
- Department of Biology, Queen’s University, Kingston, ON, Canada
| | - Vikas Dwivedi
- Institute of Plant Sciences, Volcani Institute, ARO, Rishon LeZion 7528809, Israel
| | - Eduard Belausov
- Institute of Plant Sciences, Volcani Institute, ARO, Rishon LeZion 7528809, Israel
| | - Sefi Bar-Sinai
- Institute of Plant Sciences, Volcani Institute, ARO, Rishon LeZion 7528809, Israel
| | - Motoki Tominaga
- Faculty of Education and Integrated Arts and Sciences, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
- Graduate School of Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
| | - Takeshi Haraguchi
- Department of Biology, Graduate School of Science, Chiba University, Inage-ku, Chiba 263-8522, Japan
| | - Einat Sadot
- Institute of Plant Sciences, Volcani Institute, ARO, Rishon LeZion 7528809, Israel
| | - Kohji Ito
- Department of Biology, Graduate School of Science, Chiba University, Inage-ku, Chiba 263-8522, Japan
| | - Wayne A Snedden
- Department of Biology, Queen’s University, Kingston, ON, Canada
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2
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Xu J, Zhou T, Wang Y, Yang Y, Pu Y, Chen Q, Zheng K, Sun G. Functional Analysis of the GhIQD1 Gene in Cotton Resistance to Verticillium Wilt. PLANTS (BASEL, SWITZERLAND) 2024; 13:1005. [PMID: 38611533 PMCID: PMC11013105 DOI: 10.3390/plants13071005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/12/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024]
Abstract
Cotton is a critical crop with massive economic implications worldwide. Verticillium wilt is a soil-borne ailment caused by Verticillium dahliae, which harms the growth and development of cotton. Therefore, investigating the genes associated with resistance to verticillium wilt is of particular significance. In this study, we identified the GhIQD1 gene through transcriptome analysis and experimentally characterized the role of the GhIQD1 gene in cotton against V. dahliae. The findings indicated that GhIQD1 acts as a calmodulin-binding protein. The expression of GhIQD1 was the highest in stems, and the expression level increased significantly following infection with V. dahliae. The expression in resistant cotton varieties was higher than in susceptible cotton varieties. Through overexpression of the GhIQD1 gene in tobacco, these transgenic plants exhibited improved resistance to V. dahliae. In contrast, by silencing the GhIQD1 gene in cotton through VIGS, the resistance to V. dahliae was reduced. Following inoculation, the leaves yellowed, and the disease index was higher. Transcriptome analysis of transgenic tobacco 72 h after inoculation indicated that overexpression of GhIQD1 increased the enrichment of the calmodulin pathway and stimulated the production of plant hormones alongside secondary metabolites. Consequently, we investigated the relationship between the GhIQD1 gene and plant disease-resistant hormones SA, JA, and ABA. In summary, this study uncovered the mechanism by which GhIQD1 conferred resistance to V. dahliae in cotton through positive regulation of JA and ABA, providing crucial information for further research on the adaptation of plants to pathogen invasion.
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Affiliation(s)
- Jianglin Xu
- Engineering Research Centre of Cotton, Ministry of Education, College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China; (J.X.); (Y.W.); (Q.C.)
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (T.Z.); (Y.Y.)
| | - Ting Zhou
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (T.Z.); (Y.Y.)
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030800, China
| | - Yongqiang Wang
- Engineering Research Centre of Cotton, Ministry of Education, College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China; (J.X.); (Y.W.); (Q.C.)
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (T.Z.); (Y.Y.)
| | - Yejun Yang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (T.Z.); (Y.Y.)
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030800, China
| | - Yuanchun Pu
- Institute of Western Agriculture, The Chinese Academy of Agricultural Sciences, Changji 831100, China;
| | - Quanjia Chen
- Engineering Research Centre of Cotton, Ministry of Education, College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China; (J.X.); (Y.W.); (Q.C.)
| | - Kai Zheng
- Engineering Research Centre of Cotton, Ministry of Education, College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China; (J.X.); (Y.W.); (Q.C.)
| | - Guoqing Sun
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (T.Z.); (Y.Y.)
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3
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Zeng H, Zhu Q, Yuan P, Yan Y, Yi K, Du L. Calmodulin and calmodulin-like protein-mediated plant responses to biotic stresses. PLANT, CELL & ENVIRONMENT 2023; 46:3680-3703. [PMID: 37575022 DOI: 10.1111/pce.14686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/10/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023]
Abstract
Plants have evolved a set of finely regulated mechanisms to respond to various biotic stresses. Transient changes in intracellular calcium (Ca2+ ) concentration have been well documented to act as cellular signals in coupling environmental stimuli to appropriate physiological responses with astonishing accuracy and specificity in plants. Calmodulins (CaMs) and calmodulin-like proteins (CMLs) are extensively characterized as important classes of Ca2+ sensors. The spatial-temporal coordination between Ca2+ transients, CaMs/CMLs and their target proteins is critical for plant responses to environmental stresses. Ca2+ -loaded CaMs/CMLs interact with and regulate a broad spectrum of target proteins, such as ion transporters (including channels, pumps, and antiporters), transcription factors, protein kinases, protein phosphatases, metabolic enzymes and proteins with unknown biological functions. This review focuses on mechanisms underlying how CaMs/CMLs are involved in the regulation of plant responses to diverse biotic stresses including pathogen infections and herbivore attacks. Recent discoveries of crucial functions of CaMs/CMLs and their target proteins in biotic stress resistance revealed through physiological, molecular, biochemical, and genetic analyses have been described, and intriguing insights into the CaM/CML-mediated regulatory network are proposed. Perspectives for future directions in understanding CaM/CML-mediated signalling pathways in plant responses to biotic stresses are discussed. The application of accumulated knowledge of CaM/CML-mediated signalling in biotic stress responses into crop cultivation would improve crop resistance to various biotic stresses and safeguard our food production in the future.
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Affiliation(s)
- Houqing Zeng
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Qiuqing Zhu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Peiguo Yuan
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas, USA
| | - Yan Yan
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, USA
| | - Keke Yi
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liqun Du
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
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4
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Bao Z, Guo Y, Deng Y, Zang J, Zhang J, Deng Y, Ouyang B, Qu X, Bürstenbinder K, Wang P. Microtubule-associated protein SlMAP70 interacts with IQ67-domain protein SlIQD21a to regulate fruit shape in tomato. THE PLANT CELL 2023; 35:4266-4283. [PMID: 37668409 PMCID: PMC10689142 DOI: 10.1093/plcell/koad231] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 09/06/2023]
Abstract
Tomato (Solanum lycopersicum) fruit shape is related to microtubule organization and the activity of microtubule-associated proteins (MAPs). However, insights into the mechanism of fruit shape formation from a cell biology perspective remain limited. Analysis of the tissue expression profiles of different microtubule regulators revealed that functionally distinct classes of MAPs, including members of the plant-specific MICROTUBULE-ASSOCIATED PROTEIN 70 (MAP70) and IQ67 DOMAIN (IQD, also named SUN in tomato) families, are differentially expressed during fruit development. SlMAP70-1-3 and SlIQD21a are highly expressed during fruit initiation, which relates to the dramatic microtubule pattern rearrangements throughout this developmental stage of tomato fruits. Transgenic tomato lines overexpressing SlMAP70-1 or SlIQD21a produced elongated fruits with reduced cell circularity and microtubule anisotropy, while their loss-of-function mutants showed the opposite phenotype, harboring flatter fruits. Fruits were further elongated in plants coexpressing both SlMAP70-1 and SlIQD21a. We demonstrated that SlMAP70s and SlIQD21a physically interact and that the elongated fruit phenotype is likely due to microtubule stabilization induced by the SlMAP70-SlIQD21a interaction. Together, our results identify SlMAP70 proteins and SlIQD21a as important regulators of fruit elongation and demonstrate that manipulating microtubule function during early fruit development provides an effective approach to alter fruit shape.
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Affiliation(s)
- Zhiru Bao
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Ye Guo
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Yaling Deng
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Jingze Zang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Junhong Zhang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Yingtian Deng
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Bo Ouyang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaolu Qu
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale) 06120, Germany
| | - Pengwei Wang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
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5
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Gonzalez JP, Frandsen KEH, Kesten C. The role of intrinsic disorder in binding of plant microtubule-associated proteins to the cytoskeleton. Cytoskeleton (Hoboken) 2023; 80:404-436. [PMID: 37578201 DOI: 10.1002/cm.21773] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/15/2023]
Abstract
Microtubules (MTs) represent one of the main components of the eukaryotic cytoskeleton and support numerous critical cellular functions. MTs are in principle tube-like structures that can grow and shrink in a highly dynamic manner; a process largely controlled by microtubule-associated proteins (MAPs). Plant MAPs are a phylogenetically diverse group of proteins that nonetheless share many common biophysical characteristics and often contain large stretches of intrinsic protein disorder. These intrinsically disordered regions are determinants of many MAP-MT interactions, in which structural flexibility enables low-affinity protein-protein interactions that enable a fine-tuned regulation of MT cytoskeleton dynamics. Notably, intrinsic disorder is one of the major obstacles in functional and structural studies of MAPs and represents the principal present-day challenge to decipher how MAPs interact with MTs. Here, we review plant MAPs from an intrinsic protein disorder perspective, by providing a complete and up-to-date summary of all currently known members, and address the current and future challenges in functional and structural characterization of MAPs.
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Affiliation(s)
- Jordy Perez Gonzalez
- Department for Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Kristian E H Frandsen
- Department for Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Christopher Kesten
- Department for Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark
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6
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Li H, Xie J, Gao Y, Wang X, Qin L, Ju W, Roberts JA, Cheng B, Zhang X, Lu X. IQ domain-containing protein ZmIQD27 modulates water transport in maize. PLANT PHYSIOLOGY 2023; 193:1834-1848. [PMID: 37403650 DOI: 10.1093/plphys/kiad390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 07/06/2023]
Abstract
Plant metaxylem vessels provide physical support to promote upright growth and the transport of water and nutrients. A detailed characterization of the molecular network controlling metaxylem development is lacking. However, knowledge of the events that regulate metaxylem development could contribute to the development of germplasm with improved yield. In this paper, we screened an EMS-induced B73 mutant library, which covers 92% of maize (Zea mays) genes, to identify drought-sensitive phenotypes. Three mutants were identified, named iqd27-1, iqd27-2, and iqd27-3, and genetic crosses showed that they were allelic to each other. The causal gene in these 3 mutants encodes the IQ domain-containing protein ZmIQD27. Our study showed that defective metaxylem vessel development likely causes the drought sensitivity and abnormal water transport phenotypes in the iqd27 mutants. ZmIQD27 was expressed in the root meristematic zone where secondary cell wall deposition is initiated, and loss-of-function iqd27 mutants exhibited a microtubular arrangement disorder. We propose that association of functional ZmIQD27 with microtubules is essential for correct targeted deposition of the building blocks for secondary cell wall development in maize.
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Affiliation(s)
- Haiyan Li
- National Engineering Laboratory of Crop Stress Resistance, School of Life Science, Anhui Agricultural University, Hefei 230036, China
| | - Jun Xie
- National Engineering Laboratory of Crop Stress Resistance, School of Life Science, Anhui Agricultural University, Hefei 230036, China
| | - Yongmeng Gao
- National Engineering Laboratory of Crop Stress Resistance, School of Life Science, Anhui Agricultural University, Hefei 230036, China
| | - Xuemei Wang
- National Engineering Laboratory of Crop Stress Resistance, School of Life Science, Anhui Agricultural University, Hefei 230036, China
| | - Li Qin
- Institute of Advanced Agricultural Technology, Qilu Normal University, Jinan 250200, China
| | - Wei Ju
- Nanbei Agriculture Technology Co., Ltd., Harbin 150000, China
| | - Jeremy A Roberts
- Faculty of Science and Engineering, School of Biological & Marine Sciences, University of Plymouth, Plymouth PL4 8AA, UK
| | - Beijiu Cheng
- National Engineering Laboratory of Crop Stress Resistance, School of Life Science, Anhui Agricultural University, Hefei 230036, China
| | - Xuebin Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Xiaoduo Lu
- National Engineering Laboratory of Crop Stress Resistance, School of Life Science, Anhui Agricultural University, Hefei 230036, China
- Institute of Advanced Agricultural Technology, Qilu Normal University, Jinan 250200, China
- Lab of Molecular Breeding by Design in Maize Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya 572000, China
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7
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Goldman IL, Wang Y, Alfaro AV, Brainard S, Oravec MW, McGregor CE, van der Knaap E. Form and contour: breeding and genetics of organ shape from wild relatives to modern vegetable crops. FRONTIERS IN PLANT SCIENCE 2023; 14:1257707. [PMID: 37841632 PMCID: PMC10568141 DOI: 10.3389/fpls.2023.1257707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 08/28/2023] [Indexed: 10/17/2023]
Abstract
Shape is a primary determinant of consumer preference for many horticultural crops and it is also associated with many aspects of marketing, harvest mechanics, and postharvest handling. Perceptions of quality and preference often map to specific shapes of fruits, tubers, leaves, flowers, roots, and other plant organs. As a result, humans have greatly expanded the palette of shapes available for horticultural crops, in many cases creating a series of market classes where particular shapes predominate. Crop wild relatives possess organs shaped by natural selection, while domesticated species possess organs shaped by human desires. Selection for visually-pleasing shapes in vegetable crops resulted from a number of opportunistic factors, including modification of supernumerary cambia, allelic variation at loci that control fundamental processes such as cell division, cell elongation, transposon-mediated variation, and partitioning of photosynthate. Genes that control cell division patterning may be universal shape regulators in horticultural crops, influencing the form of fruits, tubers, and grains in disparate species. Crop wild relatives are often considered less relevant for modern breeding efforts when it comes to characteristics such as shape, however this view may be unnecessarily limiting. Useful allelic variation in wild species may not have been examined or exploited with respect to shape modifications, and newly emergent information on key genes and proteins may provide additional opportunities to regulate the form and contour of vegetable crops.
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Affiliation(s)
- Irwin L. Goldman
- Department of Plant and Agroecosystem Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - Yanbing Wang
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, United States
| | - Andrey Vega Alfaro
- Department of Plant and Agroecosystem Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - Scott Brainard
- Department of Plant and Agroecosystem Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - Madeline W. Oravec
- Department of Plant and Agroecosystem Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - Cecilia Elizabeth McGregor
- Department of Horticulture, University of Georgia, Athens, GA, United States
- Institute of Plant Breeding, Genetics and Genomics, University of Georgia, Athens, GA, United States
| | - Esther van der Knaap
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, United States
- Department of Horticulture, University of Georgia, Athens, GA, United States
- Institute of Plant Breeding, Genetics and Genomics, University of Georgia, Athens, GA, United States
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8
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Müller S. Update: on selected ROP cell polarity mechanisms in plant cell morphogenesis. PLANT PHYSIOLOGY 2023; 193:26-41. [PMID: 37070572 DOI: 10.1093/plphys/kiad229] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/20/2023] [Accepted: 04/02/2023] [Indexed: 06/19/2023]
Abstract
The unequal (asymmetric) distribution of cell structures and proteins within a cell is designated as cell polarity. Cell polarity is a crucial prerequisite for morphogenetic processes such as oriented cell division and directed cell expansion. Rho-related GTPase from plants (ROPs) are required for cellular morphogenesis through the reorganization of the cytoskeleton and vesicle transport in various tissues. Here, I review recent advances in ROP-dependent tip growth, vesicle transport, and tip architecture. I report on the regulatory mechanisms of ROP upstream regulators found in different cell types. It appears that these regulators assemble in nanodomains with specific lipid compositions and recruit ROPs for activation in a stimulus-dependent manner. Current models link mechanosensing/mechanotransduction to ROP polarity signaling involved in feedback mechanisms via the cytoskeleton. Finally, I discuss ROP signaling components that are upregulated by tissue-specific transcription factors and exhibit specific localization patterns during cell division, clearly suggesting ROP signaling in division plane alignment.
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Affiliation(s)
- Sabine Müller
- Department of Biology, Friedrich-Alexander University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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9
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Li Q, Luo S, Zhang L, Feng Q, Song L, Sapkota M, Xuan S, Wang Y, Zhao J, van der Knaap E, Chen X, Shen S. Molecular and genetic regulations of fleshy fruit shape and lessons from Arabidopsis and rice. HORTICULTURE RESEARCH 2023; 10:uhad108. [PMID: 37577396 PMCID: PMC10419822 DOI: 10.1093/hr/uhad108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/12/2023] [Indexed: 08/15/2023]
Abstract
Fleshy fruit shape is an important external quality trait influencing the usage of fruits and consumer preference. Thus, modification of fruit shape has become one of the major objectives for crop improvement. However, the underlying mechanisms of fruit shape regulation are poorly understood. In this review we summarize recent progress in the genetic basis of fleshy fruit shape regulation using tomato, cucumber, and peach as examples. Comparative analyses suggest that the OFP-TRM (OVATE Family Protein - TONNEAU1 Recruiting Motif) and IQD (IQ67 domain) pathways are probably conserved in regulating fruit shape by primarily modulating cell division patterns across fleshy fruit species. Interestingly, cucumber homologs of FRUITFULL (FUL1), CRABS CLAW (CRC) and 1-aminocyclopropane-1-carboxylate synthase 2 (ACS2) were found to regulate fruit elongation. We also outline the recent progress in fruit shape regulation mediated by OFP-TRM and IQD pathways in Arabidopsis and rice, and propose that the OFP-TRM pathway and IQD pathway coordinate regulate fruit shape through integration of phytohormones, including brassinosteroids, gibberellic acids, and auxin, and microtubule organization. In addition, functional redundancy and divergence of the members of each of the OFP, TRM, and IQD families are also shown. This review provides a general overview of current knowledge in fruit shape regulation and discusses the possible mechanisms that need to be addressed in future studies.
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Affiliation(s)
- Qiang Li
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Shuangxia Luo
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Liying Zhang
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Qian Feng
- Center for Applied Genetic Technologies, Institute for Plant Breeding, Genetics and Genomics, Department of Horticulture, University of Georgia, Athens, GA, USA
| | - Lijun Song
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Manoj Sapkota
- Center for Applied Genetic Technologies, Institute for Plant Breeding, Genetics and Genomics, Department of Horticulture, University of Georgia, Athens, GA, USA
| | - Shuxin Xuan
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Yanhua Wang
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Jianjun Zhao
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Esther van der Knaap
- Center for Applied Genetic Technologies, Institute for Plant Breeding, Genetics and Genomics, Department of Horticulture, University of Georgia, Athens, GA, USA
| | - Xueping Chen
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Shuxing Shen
- College of Horticulture, State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, Hebei Agricultural University, Baoding, Hebei 071000, China
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10
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Dahiya P, Bürstenbinder K. The making of a ring: Assembly and regulation of microtubule-associated proteins during preprophase band formation and division plane set-up. CURRENT OPINION IN PLANT BIOLOGY 2023; 73:102366. [PMID: 37068357 DOI: 10.1016/j.pbi.2023.102366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 06/10/2023]
Abstract
The preprophase band (PPB) is a transient cytokinetic structure that marks the future division plane at the onset of mitosis. The PPB forms a dense cortical ring of mainly microtubules, actin filaments, endoplasmic reticulum, and associated proteins that encircles the nucleus of mitotic cells. After PPB disassembly, the positional information is preserved by the cortical division zone (CDZ). The formation of the PPB and its contribution to timely CDZ set-up involves activities of functionally distinct microtubule-associated proteins (MAPs) that interact physically and genetically to support robust division plane orientation in plants. Recent studies identified two types of plant-specific MAPs as key regulators of PPB formation, the TON1 RECRUITMENT MOTIF (TRM) and IQ67 DOMAIN (IQD) families. Both families share hallmarks of disordered scaffold proteins. Interactions of IQDs and TRMs with multiple binding partners, including the microtubule severing KATANIN1, may provide a molecular framework to coordinate PPB formation, maturation, and disassembly.
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Affiliation(s)
- Pradeep Dahiya
- Leibniz Institute of Plant Biochemistry, Dept. of Molecular Signal Processing, 06120 Halle/Saale, Germany
| | - Katharina Bürstenbinder
- Leibniz Institute of Plant Biochemistry, Dept. of Molecular Signal Processing, 06120 Halle/Saale, Germany.
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11
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Li X, Wang L, Cui Y, Liu C, Liu Y, Lu L, Luo M. The cotton protein GhIQD21 interacts with GhCaM7 and modulates organ morphogenesis in Arabidopsis by influencing microtubule stability. PLANT CELL REPORTS 2023; 42:1025-1038. [PMID: 37010557 DOI: 10.1007/s00299-023-03010-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 03/20/2023] [Indexed: 05/12/2023]
Abstract
KEY MESSAGE GhIQD21, a cotton IQ67-domain protein, interacts with GhCaM7 and alters organ shape in Arabidopsis by modulating microtubule stability. Calcium ion (Ca2+) and the calcium sensor calmodulin play crucial roles in the growth and development of plants. GhCaM7, a calmodulin in upland cotton (Gossypium hirsutum L.), is highly expressed in cotton fiber cells during the rapid elongation period and plays an important role in fiber cell development. In this study, we screened for GhCaM7-interacting proteins and identified GhIQD21, which contains a typical IQ67-domain. GhIQD21 was preferentially expressed at the fiber rapid elongation stage, and the protein localized to microtubules (MTs). Ectopic expression of GhIQD21 in Arabidopsis resulted in shorter leaves, petals, siliques, and plant height, thicker inflorescences, and more trichomes when compared with wild type (WT). Further investigation indicated that the morphogenesis of leaf epidermal cells and silique cells was altered. There was less consistency in the orientation of cortical microtubules in cotyledon and hypocotyl epidermal cells. Furthermore, compared with WT, transgenic seedling hypocotyls were more sensitive to oryzalin, a MT depolymerization drug. These results indicated that GhIQD21 is a GhCaM7-interacting protein located in MTs and that it plays a role in plant growth and potentially cotton fiber development. This study provides a foundation for further studies of the function and regulatory mechanism of GhIQD21 in fiber cell development.
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Affiliation(s)
- Xing Li
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Li Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Yupeng Cui
- Anyang Institute of Technology, Anyang, 455000, China
| | - Chen Liu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Yujie Liu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Lili Lu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, 572024, Hainan, China.
| | - Ming Luo
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- Key Laboratory of Biotechnology and Crop Quality Improvement of Ministry of Agriculture, Biotechnology Research Center, Southwest University, Chongqing, 400716, China.
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12
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Fu G, Ren Y, Kang J, Wang B, Zhang J, Fang J, Wu W. Integrative analysis of grapevine ( Vitis vinifera L) transcriptome reveals regulatory network for Chardonnay quality formation. Front Nutr 2023; 10:1187842. [PMID: 37324731 PMCID: PMC10265639 DOI: 10.3389/fnut.2023.1187842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 04/25/2023] [Indexed: 06/17/2023] Open
Abstract
Anthocyanins, total phenols, soluble sugar and fruit shape plays a significant role in determining the distinct fruit quality and customer preference. However, for the majority of fruit species, little is known about the transcriptomics and underlying regulatory networks that control the generation of overall quality during fruit growth and ripening. This study incorporated the quality-related transcriptome data from 6 ecological zones across 3 fruit development and maturity phases of Chardonnay cultivars. With the help of this dataset, we were able to build a complex regulatory network that may be used to identify important structural genes and transcription factors that control the anthocyanins, total phenols, soluble sugars and fruit shape in grapes. Overall, our findings set the groundwork to improve grape quality in addition to offering novel views on quality control during grape development and ripening.
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Affiliation(s)
- Guangqing Fu
- Research Institute of Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Yanhua Ren
- Department of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
- Horticultural College, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Jun Kang
- Department of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Bo Wang
- Research Institute of Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Junxiang Zhang
- Food and Wine Academy, Ningxia University, Yinchuan, Ningxia, China
| | - Jinggui Fang
- Department of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, China
- Food and Wine Academy, Ningxia University, Yinchuan, Ningxia, China
| | - Weimin Wu
- Research Institute of Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
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13
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Uyehara AN, Rasmussen CG. Redundant mechanisms in division plane positioning. Eur J Cell Biol 2023; 102:151308. [PMID: 36921356 DOI: 10.1016/j.ejcb.2023.151308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/05/2023] [Accepted: 03/11/2023] [Indexed: 03/18/2023] Open
Abstract
Redundancies in plant cell division contribute to the maintenance of proper division plane orientation. Here we highlight three types of redundancy: 1) Temporal redundancy, or correction of earlier defects that results in proper final positioning, 2) Genetic redundancy, or functional compensation by homologous genes, and 3) Synthetic redundancy, or redundancy within or between pathways that contribute to proper division plane orientation. Understanding the types of redundant mechanisms involved provides insight into current models of division plane orientation and opens up new avenues for exploration.
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Affiliation(s)
- Aimee N Uyehara
- Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, USA
| | - Carolyn G Rasmussen
- Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, USA.
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14
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Ai H, Liu X, Hu Z, Cao Y, Kong N, Gao F, Hu S, Shen X, Huang X, Xu G, Sun S. Mutation of OsLPR3 Enhances Tolerance to Phosphate Starvation in Rice. Int J Mol Sci 2023; 24:ijms24032437. [PMID: 36768758 PMCID: PMC9917114 DOI: 10.3390/ijms24032437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/12/2023] [Accepted: 01/18/2023] [Indexed: 01/28/2023] Open
Abstract
Low Phosphate Root (LPR) encodes a protein localized to the endoplasmic reticulum (ER) and cell wall. This gene plays a key role in responding to phosphate (Pi) deprivation, especially in remodeling the root system architecture (RSA). An identification and expression analysis of the OsLPR family in rice (Oryza sativa) has been previously reported, and OsLPR5, functioning in Pi uptake and translocation, is required for the normal growth and development of rice. However, the role of OsLPR3, one of the five members of this family in rice, in response to Pi deficiency and/or in the regulation of plant growth and development is unknown. Therefore, in this study, the roles of OsLPR3 in these processes were investigated, and some functions were found to differ between OsLPR3 and OsLPR5. OsLPR3 was found to be induced in the leaf blades, leaf sheaths, and roots under Pi deprivation. OsLPR3 overexpression strongly inhibited the growth and development of the rice but did not affect the Pi homeostasis of the plant. However, oslpr3 mutants improved RSA and Pi utilization, and they exhibited a higher tolerance to low Pi stress in rice. The agronomic traits of the oslpr3 mutants, such as 1000-grain weight and seed length, were stimulated under Pi-sufficient conditions, indicating that OsLPR3 plays roles different from those of OsLPR5 during plant growth and development, as well as in the maintenance of the Pi status of rice.
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Affiliation(s)
- Hao Ai
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiuli Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhi Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yue Cao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Nannan Kong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Feiyan Gao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Siwen Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xing Shen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xianzhong Huang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China
| | - Guohua Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shubin Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: ; Fax: +86-25-84396238
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15
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Kanapin A, Rozhmina T, Bankin M, Surkova S, Duk M, Osyagina E, Samsonova M. Genetic Determinants of Fiber-Associated Traits in Flax Identified by Omics Data Integration. Int J Mol Sci 2022; 23:ijms232314536. [PMID: 36498863 PMCID: PMC9738745 DOI: 10.3390/ijms232314536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022] Open
Abstract
In this paper, we explore potential genetic factors in control of flax phenotypes associated with fiber by mining a collection of 306 flax accessions from the Federal Research Centre of the Bast Fiber Crops, Torzhok, Russia. In total, 11 traits were assessed in the course of 3 successive years. A genome-wide association study was performed for each phenotype independently using six different single-locus models implemented in the GAPIT3 R package. Moreover, we applied a multivariate linear mixed model implemented in the GEMMA package to account for trait correlations and potential pleiotropic effects of polymorphisms. The analyses revealed a number of genomic variants associated with different fiber traits, implying the complex and polygenic control. All stable variants demonstrate a statistically significant allelic effect across all 3 years of the experiment. We tested the validity of the predicted variants using gene expression data available for the flax fiber studies. The results shed new light on the processes and pathways associated with the complex fiber traits, while the pinpointed candidate genes may be further used for marker-assisted selection.
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Affiliation(s)
- Alexander Kanapin
- Centre for Computational Biology, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Tatyana Rozhmina
- Laboratory of Breeding Technologies, Federal Research Center for Bast Fiber Crops, 172002 Torzhok, Russia
| | - Mikhail Bankin
- Mathematical Biology & Bioinformatics Laboratory, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Svetlana Surkova
- Mathematical Biology & Bioinformatics Laboratory, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Maria Duk
- Mathematical Biology & Bioinformatics Laboratory, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
- Theoretical Department, Ioffe Institute, 194021 St. Petersburg, Russia
| | - Ekaterina Osyagina
- Mathematical Biology & Bioinformatics Laboratory, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Maria Samsonova
- Mathematical Biology & Bioinformatics Laboratory, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
- Correspondence: ; Tel.: +7-812-290-9645
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16
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Liu H, Cao Y, Zhang W, Liu Z, Li Y, Chen Y, Zhang H, Yu F, Liu X. The wheat TaIQD3D-6 gene encodes a microtubule-associated protein and regulates cell morphogenesis in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 324:111420. [PMID: 35985415 DOI: 10.1016/j.plantsci.2022.111420] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 07/07/2022] [Accepted: 08/12/2022] [Indexed: 05/26/2023]
Abstract
A plethora of microtubule-associated proteins (MAPs) modulate the dynamics of microtubules (MTs) to ensure the proper elaboration of developmental programs in plants. Among the plant-specific MAPs are the IQ67 domain (IQD) family proteins. Despite the great progress in elucidating IQD protein functions, the majority of IQD proteins, especially IQDs in crop species, remain to be functionally explored. In this study, we identified 78 putative IQD family genes in the genome of hexaploid wheat (Triticum aestivum). Phylogenetic analysis of wheat and Arabidopsis IQDs supports the previous notion that the expansion of the IQD family coincides with plant terrestrialization. Further characterization of one TaIQD, TaIQD3D-6, revealed that TaIQD3D-6 directly binds to MTs and free tubulins in vitro and is associated with cortical MTs in interphase cells in vivo. Overexpressing TaIQD3D-6 in Arabidopsis leads to a spectrum of phenotypes that are indicative of perturbed MT homeostasis, including spiral growth, hypersensitivity to MT-destabilizing drugs, defects in cell morphogenesis, and altered organization of cMT arrays. Finally, we determined that TaIQD3D-6-GFP localizes to the expanding cell plate during cytokinesis and the overexpression of TaIQD3D-6 interferes with asymmetric cell division in the stomatal lineage in Arabidopsis. In summary, our findings establish that TaIQD3D-6 is a MAP that regulates plant cell and organ morphogenesis and provide new insights into the functions of crop IQD proteins.
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Affiliation(s)
- Haofeng Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Yongxin Cao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Wenjing Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Zhu Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Yan Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Yu Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Hongchang Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Fei Yu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Xiayan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China.
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17
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Yang B, Stamm G, Bürstenbinder K, Voiniciuc C. Microtubule-associated IQD9 orchestrates cellulose patterning in seed mucilage. THE NEW PHYTOLOGIST 2022; 235:1096-1110. [PMID: 35488480 DOI: 10.1111/nph.18188] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Arabidopsis seeds release large capsules of mucilaginous polysaccharides, which are shaped by an intricate network of cellulosic microfibrils. Cellulose synthase complexes are guided by the microtubule cytoskeleton, but it is unclear which proteins mediate this process in the seed coat epidermis. Using reverse genetics, we identified IQ67 DOMAIN 9 (IQD9) and KINESIN LIGHT CHAIN-RELATED 1 (KLCR1) as two highly expressed genes during seed development and comprehensively characterized their roles in cell wall polysaccharide biosynthesis. Mutations in IQD9 as well as in KLCR1 lead to compact mucilage capsules with aberrant cellulose distribution, which can be rescued by transgene complementation. IQD9 physically interacts with KLCR1 and localizes to cortical microtubules (MTs) to maintain their organization in seed coat epidermal (SCE) cells. IQD9 as well as a previously identified TONNEAU1 (TON1) RECRUITING MOTIF 4 (TRM4) protein act to maintain cellulose synthase velocity. Our results demonstrate that IQD9, KLCR1 and TRM4 are MT-associated proteins that are required for seed mucilage architecture. This study provides the first direct evidence that members of the IQD, KLCR and TRM families have overlapping roles in cell wall biosynthesis. Therefore, SCE cells provide an attractive system to further decipher the complex genetic regulation of polarized cellulose deposition.
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Affiliation(s)
- Bo Yang
- Independent Junior Research Group-Designer Glycans, Leibniz Institute of Plant Biochemistry, 06120, Halle (Saale), Germany
| | - Gina Stamm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120, Halle (Saale), Germany
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120, Halle (Saale), Germany
| | - Cătălin Voiniciuc
- Independent Junior Research Group-Designer Glycans, Leibniz Institute of Plant Biochemistry, 06120, Halle (Saale), Germany
- Horticultural Sciences Department, University of Florida, Gainesville, FL, 32611, USA
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18
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Lavagi-Craddock I, Dang T, Comstock S, Osman F, Bodaghi S, Vidalakis G. Transcriptome Analysis of Citrus Dwarfing Viroid Induced Dwarfing Phenotype of Sweet Orange on Trifoliate Orange Rootstock. Microorganisms 2022; 10:microorganisms10061144. [PMID: 35744662 PMCID: PMC9228058 DOI: 10.3390/microorganisms10061144] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/25/2022] [Accepted: 05/30/2022] [Indexed: 01/27/2023] Open
Abstract
Dwarfed citrus trees for high-density plantings or mechanized production systems will be key for future sustainable citrus production. Citrus trees consist of two different species of scion and rootstock. Therefore, any observed phenotype results from gene expression in both species. Dwarfed sweet orange trees on trifoliate rootstock have been produced using citrus dwarfing viroid (CDVd). We performed RNA-seq transcriptome analysis of CDVd-infected stems and roots and compared them to non-infected controls. The identified differentially expressed genes validated with RT-qPCR corresponded to various physiological and developmental processes that could be associated with the dwarfing phenotype. For example, the transcription factors MYB13 and MADS-box, which regulate meristem functions and activate stress responses, were upregulated in the stems. Conversely, a calcium-dependent lipid-binding protein that regulates membrane transporters was downregulated in the roots. Most transcriptome reprogramming occurred in the scion rather than in the rootstock; this agrees with previous observations of CDVd affecting the growth of sweet orange stems while not affecting the trifoliate rootstock. Furthermore, the lack of alterations in the pathogen defense transcriptome supports the term “Transmissible small nuclear ribonucleic acid,” which describes CDVd as a modifying agent of tree performance with desirable agronomic traits rather than a disease-causing pathogen.
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Affiliation(s)
- Irene Lavagi-Craddock
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Tyler Dang
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Stacey Comstock
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Fatima Osman
- Department of Plant Pathology, University of California, Davis, CA 95616, USA;
| | - Sohrab Bodaghi
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Georgios Vidalakis
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
- Correspondence:
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19
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Yi P, Goshima G. Division site determination during asymmetric cell division in plants. THE PLANT CELL 2022; 34:2120-2139. [PMID: 35201345 PMCID: PMC9134084 DOI: 10.1093/plcell/koac069] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/20/2022] [Indexed: 05/19/2023]
Abstract
During development, both animals and plants exploit asymmetric cell division (ACD) to increase tissue complexity, a process that usually generates cells dissimilar in size, morphology, and fate. Plants lack the key regulators that control ACD in animals. Instead, plants have evolved two unique cytoskeletal structures to tackle this problem: the preprophase band (PPB) and phragmoplast. The assembly of the PPB and phragmoplast and their contributions to division plane orientation have been extensively studied. However, how the division plane is positioned off the cell center during asymmetric division is poorly understood. Over the past 20 years, emerging evidence points to a critical role for polarly localized membrane proteins in this process. Although many of these proteins are species- or cell type specific, and the molecular mechanism underlying division asymmetry is not fully understood, common features such as morphological changes in cells, cytoskeletal dynamics, and nuclear positioning have been observed. In this review, we provide updates on polarity establishment and nuclear positioning during ACD in plants. Together with previous findings about symmetrically dividing cells and the emerging roles of developmental cues, we aim to offer evolutionary insight into a common framework for asymmetric division-site determination and highlight directions for future work.
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Affiliation(s)
| | - Gohta Goshima
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba 517-0004, Japan
- Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya Aichi 464-8602, Japan
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20
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Barda O, Levy M. IQD1 Involvement in Hormonal Signaling and General Defense Responses Against Botrytis cinerea. FRONTIERS IN PLANT SCIENCE 2022; 13:845140. [PMID: 35557724 PMCID: PMC9087847 DOI: 10.3389/fpls.2022.845140] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/15/2022] [Indexed: 06/15/2023]
Abstract
IQ Domain 1 (IQD1) is a novel Arabidopsis thaliana calmodulin-binding protein, which was found to be a positive regulator of glucosinolate (GS) accumulation and plant defense responses against insects. We demonstrate here that the IQD1 overexpressing line (IQD1 OXP ) was also more resistant also to the necrotrophic fungus Botrytis cinerea, whereas an IQD1 knockout line (iqd1-1) was much more sensitive. Furthermore, we showed that IQD1 is up-regulated by jasmonic acid (JA) and downregulated by salicylic acid (SA). A comparison of whole transcriptome expression between iqd1-1 and wild type plants revealed a substantial downregulation of genes involved in plant defense and hormone regulation. Further examination revealed a marked reduction of SA and increases in the levels of ethylene, JA and abscisic acid response genes in the iqd1-1 line. Moreover, quantification of SA, JA, and abscisic acids in IQD1 OXP and iqd1-1 lines relative to the wild type, showed a significant reduction in endogenous JA levels in the knockout line, simultaneously with increased SA levels. Relations between IQD1 OXP and mutants defective in plant-hormone response indicated that IQD1 cannot rescue the absence of NPR1 or impaired SA accumulation in the NahG line. IQD1 cannot rescue ein2 or eto1 mutations connected to the ethylene pathway involved in both defense responses against B. cinerea and in regulating GS accumulation. Furthermore, IQD1cannot rescue the aos, coi1 or jar1mutations, all involved in the defense response against B. cinerea and it depends on JAR1 to control indole glucosinolate accumulation. We also found that in the B. cinerea, which infected the iqd1-1 mutant, the most abundant upregulated group of proteins is involved in the degradation of complex carbohydrates, as correlated with the sensitivity of this mutant. In summary, our results suggest that IQD1 is an important A. thaliana defensive protein against B. cinerea that is integrated into several important pathways, such as those involved in plant defense and hormone responses.
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Naumann C, Heisters M, Brandt W, Janitza P, Alfs C, Tang N, Toto Nienguesso A, Ziegler J, Imre R, Mechtler K, Dagdas Y, Hoehenwarter W, Sawers G, Quint M, Abel S. Bacterial-type ferroxidase tunes iron-dependent phosphate sensing during Arabidopsis root development. Curr Biol 2022; 32:2189-2205.e6. [PMID: 35472311 PMCID: PMC9168544 DOI: 10.1016/j.cub.2022.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 02/21/2022] [Accepted: 04/04/2022] [Indexed: 12/02/2022]
Abstract
Access to inorganic phosphate (Pi), a principal intermediate of energy and nucleotide metabolism, profoundly affects cellular activities and plant performance. In most soils, antagonistic Pi-metal interactions restrict Pi bioavailability, which guides local root development to maximize Pi interception. Growing root tips scout the essential but immobile mineral nutrient; however, the mechanisms monitoring external Pi status are unknown. Here, we show that Arabidopsis LOW PHOSPHATE ROOT 1 (LPR1), one key determinant of Fe-dependent Pi sensing in root meristems, encodes a novel ferroxidase of high substrate specificity and affinity (apparent KM ∼ 2 μM Fe2+). LPR1 typifies an ancient, Fe-oxidizing multicopper protein family that evolved early upon bacterial land colonization. The ancestor of streptophyte algae and embryophytes (land plants) acquired LPR1-type ferroxidase from soil bacteria via horizontal gene transfer, a hypothesis supported by phylogenomics, homology modeling, and biochemistry. Our molecular and kinetic data on LPR1 regulation indicate that Pi-dependent Fe substrate availability determines LPR1 activity and function. Guided by the metabolic lifestyle of extant sister bacterial genera, we propose that Arabidopsis LPR1 monitors subtle concentration differentials of external Fe availability as a Pi-dependent cue to adjust root meristem maintenance via Fe redox signaling and cell wall modification. We further hypothesize that the acquisition of bacterial LPR1-type ferroxidase by embryophyte progenitors facilitated the evolution of local Pi sensing and acquisition during plant terrestrialization. Arabidopsis thaliana LPR1 multicopper oxidase typifies a novel ferroxidase cohort Fe availability tunes LPR1-dependent root responses to phosphate (Pi) limitation LPR1 specificity links Fe-Pi interactions to root Pi sensing via redox cycling Streptophyte ancestors acquired LPR1-type ferroxidase from soil bacteria by HGT
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Noack LC, Bayle V, Armengot L, Rozier F, Mamode-Cassim A, Stevens FD, Caillaud MC, Munnik T, Mongrand S, Pleskot R, Jaillais Y. A nanodomain-anchored scaffolding complex is required for the function and localization of phosphatidylinositol 4-kinase alpha in plants. THE PLANT CELL 2022; 34:302-332. [PMID: 34010411 PMCID: PMC8774046 DOI: 10.1093/plcell/koab135] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/10/2021] [Indexed: 05/24/2023]
Abstract
Phosphoinositides are low-abundant lipids that participate in the acquisition of membrane identity through their spatiotemporal enrichment in specific compartments. Phosphatidylinositol 4-phosphate (PI4P) accumulates at the plant plasma membrane driving its high electrostatic potential, and thereby facilitating interactions with polybasic regions of proteins. PI4Kα1 has been suggested to produce PI4P at the plasma membrane, but how it is recruited to this compartment is unknown. Here, we pin-point the mechanism that tethers Arabidopsis thaliana phosphatidylinositol 4-kinase alpha1 (PI4Kα1) to the plasma membrane via a nanodomain-anchored scaffolding complex. We established that PI4Kα1 is part of a complex composed of proteins from the NO-POLLEN-GERMINATION, EFR3-OF-PLANTS, and HYCCIN-CONTAINING families. Comprehensive knockout and knockdown strategies revealed that subunits of the PI4Kα1 complex are essential for pollen, embryonic, and post-embryonic development. We further found that the PI4Kα1 complex is immobilized in plasma membrane nanodomains. Using synthetic mis-targeting strategies, we demonstrate that a combination of lipid anchoring and scaffolding localizes PI4Kα1 to the plasma membrane, which is essential for its function. Together, this work opens perspectives on the mechanisms and function of plasma membrane nanopatterning by lipid kinases.
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Affiliation(s)
- Lise C Noack
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, F-69342, Lyon, France
| | - Vincent Bayle
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, F-69342, Lyon, France
| | - Laia Armengot
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, F-69342, Lyon, France
| | - Frédérique Rozier
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, F-69342, Lyon, France
| | - Adiilah Mamode-Cassim
- Laboratoire de Biogenèse Membranaire, UMR5200, Université de Bordeaux, CNRS, 33140 Villenave d’Ornon, France
- Agroécologie, AgroSup Dijon, CNRS, INRA, University Bourgogne Franche-Comté, F-21000 Dijon, France
| | - Floris D Stevens
- Research Cluster Green Life Sciences, Section Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, 1090 GE, The Netherlands
| | - Marie-Cécile Caillaud
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, F-69342, Lyon, France
| | - Teun Munnik
- Research Cluster Green Life Sciences, Section Plant Cell Biology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, 1090 GE, The Netherlands
| | - Sébastien Mongrand
- Laboratoire de Biogenèse Membranaire, UMR5200, Université de Bordeaux, CNRS, 33140 Villenave d’Ornon, France
| | - Roman Pleskot
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 16502 Prague 6, Czech Republic
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Jagdale S, Rao U, Giri AP. Effectors of Root-Knot Nematodes: An Arsenal for Successful Parasitism. FRONTIERS IN PLANT SCIENCE 2021; 12:800030. [PMID: 35003188 PMCID: PMC8727514 DOI: 10.3389/fpls.2021.800030] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/23/2021] [Indexed: 05/13/2023]
Abstract
Root-knot nematodes (RKNs) are notorious plant-parasitic nematodes first recorded in 1855 in cucumber plants. They are microscopic, obligate endoparasites that cause severe losses in agriculture and horticulture. They evade plant immunity, hijack the plant cell cycle, and metabolism to modify healthy cells into giant cells (GCs) - RKN feeding sites. RKNs secrete various effector molecules which suppress the plant defence and tamper with plant cellular and molecular biology. These effectors originate mainly from sub-ventral and dorsal oesophageal glands. Recently, a few non-oesophageal gland secreted effectors have been discovered. Effectors are essential for the entry of RKNs in plants, subsequently formation and maintenance of the GCs during the parasitism. In the past two decades, advanced genomic and post-genomic techniques identified many effectors, out of which only a few are well characterized. In this review, we provide molecular and functional details of RKN effectors secreted during parasitism. We list the known effectors and pinpoint their molecular functions. Moreover, we attempt to provide a comprehensive insight into RKN effectors concerning their implications on overall plant and nematode biology. Since effectors are the primary and prime molecular weapons of RKNs to invade the plant, it is imperative to understand their intriguing and complex functions to design counter-strategies against RKN infection.
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Affiliation(s)
- Shounak Jagdale
- Plant Molecular Biology Unit, Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Uma Rao
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Ashok P. Giri
- Plant Molecular Biology Unit, Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Cheng Z, Liu Z, Xu Y, Ma L, Chen J, Gou J, Su L, Wu W, Chen Y, Yu W, Wang P. Fine mapping and identification of the candidate gene BFS for fruit shape in wax gourd (Benincasa hispida). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:3983-3995. [PMID: 34480584 DOI: 10.1007/s00122-021-03942-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/18/2021] [Indexed: 05/18/2023]
Abstract
Non-synonymous mutations in the BFS gene, which encodes the IQD protein, are responsible for the shape of wax gourd fruits. Fruit shape is an important agronomic trait in wax gourds. Therefore, in this study, we employed bulked segregant analysis (BSA) to identify a candidate gene for fruit shape in wax gourds within F2 populations derived by crossing GX-71 (long cylindrical fruit, fruit shape index = 4.56) and MY-1 (round fruit, fruit shape index = 1.06) genotypes. According to BSA, the candidate gene is located in the 17.18 Mb region on chromosome 2. Meanwhile, kompetitive allele-specific PCR (KASP) markers were used to reduce it to a 19.6 Kb region. Only one gene was present within the corresponding region of the reference genome, namely Bch02G016830 (designated BFS). Subsequently, BFS was sequenced in six wax gourd varieties with different fruit shapes. Sequence analysis revealed two non-synonymous mutations in the round wax gourd and one non-synonymous mutation in the cylindrical wax gourd. Quantitative real‑time PCR (qRT-PCR) analysis further showed that the expression of BFS in round fruits was significantly higher than in long cylindrical fruits at the ovary formation stage. Therefore, BFS is a candidate gene for determination wax gourd shape. The predicted protein encoded by the BFS gene belongs to the IQ67-domain protein family, which have the structural characteristics of scaffold proteins and coordinate Ca2+ CaM signaling from the membrane to the nucleus. Ultimately, two derived cleaved amplified polymorphic sequence (dCAPS) markers were developed to facilitate marker-assisted selection for wax gourds breeding.
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Affiliation(s)
- Zhikui Cheng
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Zhengguo Liu
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Yuanchao Xu
- SinoDutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lianlian Ma
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Jieying Chen
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Jiquan Gou
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Liwen Su
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Wenting Wu
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Yong Chen
- Institute for New Rural Development, Guangxi University, Guangxi, 530004, China
| | - Wenjin Yu
- College of Agriculture, Guangxi University, Guangxi, 530004, China
| | - Peng Wang
- College of Agriculture, Guangxi University, Guangxi, 530004, China.
- Institute of Vegetables, Guangxi Academy of Agricultural Sciences, Guangxi, 530004, China.
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Vaddepalli P, de Zeeuw T, Strauss S, Bürstenbinder K, Liao CY, Ramalho JJ, Smith RS, Weijers D. Auxin-dependent control of cytoskeleton and cell shape regulates division orientation in the Arabidopsis embryo. Curr Biol 2021; 31:4946-4955.e4. [PMID: 34610273 PMCID: PMC8612740 DOI: 10.1016/j.cub.2021.09.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 07/22/2021] [Accepted: 09/07/2021] [Indexed: 11/25/2022]
Abstract
Premitotic control of cell division orientation is critical for plant development, as cell walls prevent extensive cell remodeling or migration. While many divisions are proliferative and add cells to existing tissues, some divisions are formative and generate new tissue layers or growth axes. Such formative divisions are often asymmetric in nature, producing daughters with different fates. We have previously shown that, in the Arabidopsis thaliana embryo, developmental asymmetry is correlated with geometric asymmetry, creating daughter cells of unequal volume. Such divisions are generated by division planes that deviate from a default “minimal surface area” rule. Inhibition of auxin response leads to reversal to this default, yet the mechanisms underlying division plane choice in the embryo have been unclear. Here, we show that auxin-dependent division plane control involves alterations in cell geometry, but not in cell polarity axis or nuclear position. Through transcriptome profiling, we find that auxin regulates genes controlling cell wall and cytoskeleton properties. We confirm the involvement of microtubule (MT)-binding proteins in embryo division control. Organization of both MT and actin cytoskeleton depends on auxin response, and genetically controlled MT or actin depolymerization in embryos leads to disruption of asymmetric divisions, including reversion to the default. Our work shows how auxin-dependent control of MT and actin cytoskeleton properties interacts with cell geometry to generate asymmetric divisions during the earliest steps in plant development. Auxin responses regulate directional cell expansion in Arabidopsis embryos Cell shape and division orientation are tightly coupled Transcriptome analysis identifies MT-associated IQD proteins in division control Cytoskeletal dynamics control division orientation
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Affiliation(s)
- Prasad Vaddepalli
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands.
| | - Thijs de Zeeuw
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands
| | - Sören Strauss
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, Germany
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Weinberg 3, Halle (Saale), Germany
| | - Che-Yang Liao
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands
| | - João Jacob Ramalho
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands
| | - Richard S Smith
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, Germany; John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands.
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Godinho Mendes RA, Basso MF, Fernandes de Araújo J, Paes de Melo B, Lima RN, Ribeiro TP, da Silva Mattos V, Saliba Albuquerque EV, Grossi-de-Sa M, Dessaune Tameirao SN, da Rocha Fragoso R, Mattar da Silva MC, Vignols F, Fernandez D, Grossi-de-Sa MF. Minc00344 and Mj-NULG1a effectors interact with GmHub10 protein to promote the soybean parasitism by Meloidogyne incognita and M. javanica. Exp Parasitol 2021; 229:108153. [PMID: 34508716 DOI: 10.1016/j.exppara.2021.108153] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 05/31/2021] [Accepted: 08/28/2021] [Indexed: 10/24/2022]
Abstract
Several economically important crops are susceptible to root-knot nematode (RKNs). Meloidogyne incognita and M. javanica are the two most reported species from the RKN complex, causing damage to several crops worldwide. The successful outcome of the Meloidogyne-plant interaction is associated with molecular factors secreted by the nematode to suppress the plant's immune response and promote nematode parasitism. In contrast, several plant factors are associated with defense against nematode infection. In this study, we identified and characterized the specific interaction of Minc00344 and Mj-NULG1a effectors with soybean GmHub10 (Glyma.19G008200) protein in vitro and in vivo. An Arabidopsis thaliana T-DNA mutant of AtHub10 (AT3G27960, an orthologous gene of GmHub10) showed higher susceptibility to M. incognita. Thus, since soybean and A. thaliana Hub10 proteins are involved in pollen tube growth and indirect activation of the defense response, our data suggest that effector-Hub10 interactions could be associated with an increase in plant susceptibility. These findings indicate the potential of these effector proteins to develop new biotechnological tools based on RNA interference and the overexpression of engineered Hub10 proteins for the efficient management of RKN in crops.
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Affiliation(s)
- Reneida Aparecida Godinho Mendes
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil; Federal University of Brasília, Brasília-DF, 70910-900, Brazil
| | - Marcos Fernando Basso
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil; National Institute of Science and Technology-INCT PlantStress Biotech-EMBRAPA, Brazil
| | | | - Bruno Paes de Melo
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil; Federal University of Viçosa, Viçosa-MG, 36570-900, Brazil
| | - Rayane Nunes Lima
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil
| | | | | | | | - Maira Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil; IRD, Cirad, Univ Montpellier, IPME, 911, Avenue Agropolis, 34394, Montpellier Cedex 5, France
| | | | | | - Maria Cristina Mattar da Silva
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil; National Institute of Science and Technology-INCT PlantStress Biotech-EMBRAPA, Brazil
| | - Florence Vignols
- Biochimie et Physiologie Moléculaire des Plantes, CNRS/INRA/Université de Montpellier/SupAgro, Montpellier, France
| | - Diana Fernandez
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil; IRD, Cirad, Univ Montpellier, IPME, 911, Avenue Agropolis, 34394, Montpellier Cedex 5, France; National Institute of Science and Technology-INCT PlantStress Biotech-EMBRAPA, Brazil
| | - Maria Fatima Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, Brasília-DF, 70297-400, Brazil; Catholic University of Brasília, Brasília-DF, 71966-700, Brazil; National Institute of Science and Technology-INCT PlantStress Biotech-EMBRAPA, Brazil.
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Zang J, Kriechbaumer V, Wang P. Plant cytoskeletons and the endoplasmic reticulum network organization. JOURNAL OF PLANT PHYSIOLOGY 2021; 264:153473. [PMID: 34298331 DOI: 10.1016/j.jplph.2021.153473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/07/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
Plant endoplasmic reticulum (ER) remodelling is likely to be important for its function in targeted protein secretion, organelle interaction and signal exchange. It has been known for decades that the structure and movement of the ER network is mainly regulated by the actin cytoskeleton through actin motor proteins and membrane-cytoskeleton adaptors. Recent discoveries also revealed alternative pathways that influence ER movement, through a microtubule-based machinery. Therefore, plants utilize both cytoskeletal components to drive ER dynamics, a process that is likely to be dependent on the cell type and the developmental stages. On the other hand, the ER membrane also has a direct effect towards the organization of the cytoskeletal network and disrupting the tethering factors at the ER-PM interface also rearranges the cytoskeletal structure. However, the influence of the ER network on the cytoskeleton organization has not been studied. In this review, we will provide an overview of the ER-cytoskeleton network in plants, and discuss the most recent discoveries in the field.
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Affiliation(s)
- Jingze Zang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Verena Kriechbaumer
- Plant Cell Biology, Department of Biological and Medical Sciences, Oxford Brookes University, Oxford, OX3 0BP, UK
| | - Pengwei Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China.
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28
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Rehman A, Peng Z, Li H, Qin G, Jia Y, Pan Z, He S, Qayyum A, Du X. Genome wide analysis of IQD gene family in diploid and tetraploid species of cotton (Gossypium spp.). Int J Biol Macromol 2021; 184:1035-1061. [PMID: 34174315 DOI: 10.1016/j.ijbiomac.2021.06.115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/31/2021] [Accepted: 06/16/2021] [Indexed: 12/25/2022]
Abstract
Calmodulin (CaM) is considered as the most significant Ca2+ signaling messenger that mediate various biochemical and physiological reactions. IQ domain (IQD) proteins are plant specific CML/CaM calcium binding which are characterized by domains of 67 amino acids. 50, 50, 94, and 99 IQD genes were detected from G. arboreum (A2), G. raimondii (D5), G. barbadense (AD2) and G. hirsutum (AD1) respectively. Existence of more orthologous genes in cotton species than Arabidopsis, advocated that polyploidization produced new cotton specific orthologous gene clusters. Duplication of gene events depicts that IQD gene family of cotton evolution was under strong purifying selection. G. hirsutum exhibited high level synteny. GarIQD25 exhibited high expression in stem, root, flower, ovule and fiber in G. arboreum. In G. raimondii, GraIQD03 demonstrated upregulation across stem, ovule, fiber and seed. GbaIQD11 and GbaIQD62 exhibited upregulation in fiber development in G. barbadense. GhiIQD69 recognized as main candidate genes for plant parts, floral tissues, fiber and ovule development. Promotor analysis identified cis-regulatory elements were involved in plant growth and development. Overwhelmingly, present study paves the way to better understand the evolution of cotton IQD genes and lays a foundation for future investigation of IQD in cotton.
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Affiliation(s)
- Abdul Rehman
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450000, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang 455000, Henan, China
| | - Zhen Peng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang 455000, Henan, China
| | - Hongge Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang 455000, Henan, China
| | - Guangyong Qin
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450000, China
| | - Yinhua Jia
- State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang 455000, Henan, China
| | - Zhaoe Pan
- State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang 455000, Henan, China
| | - Shoupu He
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450000, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang 455000, Henan, China
| | - Abdul Qayyum
- Department of Plant Breeding and Genetics, Bahauddin Zakariya university, Multan 66000, Pakistan
| | - Xiongming Du
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450000, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research Chinese Academy of Agricultural Science, Anyang 455000, Henan, China.
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29
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Wang L, Liu Y, Liu C, Ge C, Xu F, Luo M. Ectopic expression of GhIQD14 (cotton IQ67 domain-containing protein 14) causes twisted organ and modulates secondary wall formation in Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 163:276-284. [PMID: 33872832 DOI: 10.1016/j.plaphy.2021.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 04/02/2021] [Indexed: 05/26/2023]
Abstract
In plants, although KNOX genes are known to regulate secondary cell wall (SCW) formation, their protein-regulating mechanisms remain largely unknown. Here, we showed that GhKNL1, which regulates SCW formation and fiber development in cotton, could interact with an IQ67 domain containing protein (GhIQD14) in yeast. Confocal observation showed that GhIQD14 was localized to the microtubules. In Arabidopsis, ectopic expression of GhIQD14 caused hypocotyls to be sensitive to microtubule depolymerization agent, organ twisting of seedlings, trichomes, rosette leaves, and capsules, as well as severely irregular xylem vessels and thicker interfascicular fiber cell walls in the inflorescence stem. Furthermore, we found that GhIQD14 interacted with AtKNAT7 in vivo, and instantaneous co-expression of GhIQD14 and AtKNAT7 in tobacco showed that GhIQD14 weakened the distribution of AtKNAT7 in the nucleus, bringing it into the microtubules, thus affecting the SCW formation related genes expression. Our results suggested that GhIQD14 might be involved in the morphological development and SCW formation in cotton.
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Affiliation(s)
- Li Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Yujie Liu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Chen Liu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Changwei Ge
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Fan Xu
- Key Laboratory of Biotechnology and Crop Quality Improvement of Ministry of Agriculture, Biotechnology Research Center, Southwest University, Chongqing, China
| | - Ming Luo
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China; Key Laboratory of Biotechnology and Crop Quality Improvement of Ministry of Agriculture, Biotechnology Research Center, Southwest University, Chongqing, China.
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Kumari P, Dahiya P, Livanos P, Zergiebel L, Kölling M, Poeschl Y, Stamm G, Hermann A, Abel S, Müller S, Bürstenbinder K. IQ67 DOMAIN proteins facilitate preprophase band formation and division-plane orientation. NATURE PLANTS 2021; 7:739-747. [PMID: 34031540 DOI: 10.1038/s41477-021-00923-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 04/16/2021] [Indexed: 05/26/2023]
Abstract
Spatiotemporal control of cell division is essential for the growth and development of multicellular organisms. In plant cells, proper cell plate insertion during cytokinesis relies on the premitotic establishment of the division plane at the cell cortex. Two plant-specific cytoskeleton arrays, the preprophase band (PPB) and the phragmoplast, play important roles in division-plane orientation and cell plate formation, respectively1. Microtubule organization and dynamics and their communication with membranes at the cortex and cell plate are coordinated by multiple, mostly distinct microtubule-associated proteins2. How division-plane selection and establishment are linked, however, is still unknown. Here, we report members of the Arabidopsis IQ67 DOMAIN (IQD) family3 as microtubule-targeted proteins that localize to the PPB and phragmoplast and additionally reside at the cell plate and a polarized cortical region including the cortical division zone (CDZ). IQDs physically interact with PHRAGMOPLAST ORIENTING KINESIN (POK) proteins4,5 and PLECKSTRIN HOMOLOGY GTPase ACTIVATING (PHGAP) proteins6, which are core components of the CDZ1. The loss of IQD function impairs PPB formation and affects CDZ recruitment of POKs and PHGAPs, resulting in division-plane positioning defects. We propose that IQDs act as cellular scaffolds that facilitate PPB formation and CDZ set-up during symmetric cell division.
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Affiliation(s)
- Pratibha Kumari
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Pradeep Dahiya
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Pantelis Livanos
- Department of Developmental Genetics, Center for Plant Molecular Biology (ZMBP), Tübingen, Germany
| | - Luise Zergiebel
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Malte Kölling
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Yvonne Poeschl
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Jena, Germany
| | - Gina Stamm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Arvid Hermann
- Department of Developmental Genetics, Center for Plant Molecular Biology (ZMBP), Tübingen, Germany
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, USA
| | - Steffen Abel
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
- Department of Plant Sciences, University of California Davis, Davis, CA, USA
| | - Sabine Müller
- Department of Developmental Genetics, Center for Plant Molecular Biology (ZMBP), Tübingen, Germany
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany.
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Li Y, Huang Y, Wen Y, Wang D, Liu H, Li Y, Zhao J, An L, Yu F, Liu X. The domain of unknown function 4005 (DUF4005) in an Arabidopsis IQD protein functions in microtubule binding. J Biol Chem 2021; 297:100849. [PMID: 34058197 PMCID: PMC8246641 DOI: 10.1016/j.jbc.2021.100849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 05/20/2021] [Accepted: 05/27/2021] [Indexed: 11/18/2022] Open
Abstract
The dynamic responses of microtubules (MTs) to internal and external signals are modulated by a plethora of microtubule-associated proteins (MAPs). In higher plants, many plant-specific MAPs have emerged during evolution as advantageous to their sessile lifestyle. Some members of the IQ67 domain (IQD) protein family have been shown to be plant-specific MAPs. However, the mechanisms of interaction between IQD proteins and MTs remain elusive. Here we demonstrate that the domain of unknown function 4005 (DUF4005) of the Arabidopsis IQD family protein ABS6/AtIQD16 is a novel MT-binding domain. Cosedimentation assays showed that the DUF4005 domain binds directly to MTs in vitro. GFP-labeled DUF4005 also decorates all types of MT arrays tested in vivo. Furthermore, we showed that a conserved stretch of 15 amino acid residues within the DUF4005 domain, which shares sequence similarity with the C-terminal MT-binding domain of human MAP Kif18A, is required for the binding to MTs. Transgenic lines overexpressing the DUF4005 domain displayed a spectrum of developmental defects, including spiral growth and stunted growth at the organismal level. At the cellular level, DUF4005 overexpression caused defects in epidermal pavement cell and trichome morphogenesis, as well as abnormal anisotropic cell elongation in the hypocotyls of dark-grown seedlings. These data establish that the DUF4005 domain of ABS6/AtIQD16 is a new MT-binding domain, overexpression of which perturbs MT homeostasis in plants. Our findings provide new insights into the MT-binding mechanisms of plant IQD proteins.
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Affiliation(s)
- Yan Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yujia Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yunze Wen
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Dan Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Haofeng Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yuanfeng Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jun Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Lijun An
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Fei Yu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Institute of Future Agriculture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Xiayan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China.
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Li Y, Deng M, Liu H, Li Y, Chen Y, Jia M, Xue H, Shao J, Zhao J, Qi Y, An L, Yu F, Liu X. ABNORMAL SHOOT 6 interacts with KATANIN 1 and SHADE AVOIDANCE 4 to promote cortical microtubule severing and ordering in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:646-661. [PMID: 32761943 DOI: 10.1111/jipb.13003] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/03/2020] [Indexed: 05/14/2023]
Abstract
Plant interphase cortical microtubules (cMTs) mediate anisotropic cell expansion in response to environmental and developmental cues. In Arabidopsis thaliana, KATANIN 1 (KTN1), the p60 catalytic subunit of the conserved MT-severing enzyme katanin, is essential for cMT ordering and anisotropic cell expansion. However, the regulation of KTN1-mediated cMT severing and ordering remains unclear. In this work, we report that the Arabidopsis IQ67 DOMAIN (IQD) family gene ABNORMAL SHOOT 6 (ABS6) encodes a MT-associated protein. Overexpression of ABS6 leads to elongated cotyledons, directional pavement cell expansion, and highly ordered transverse cMT arrays. Genetic suppressor analysis revealed that ABS6-mediated cMT ordering is dependent on KTN1 and SHADE AVOIDANCE 4 (SAV4). Live imaging of cMT dynamics showed that both ABS6 and SAV4 function as positive regulators of cMT severing. Furthermore, ABS6 directly interacts with KTN1 and SAV4 and promotes their recruitment to the cMTs. Finally, analysis of loss-of-function mutant combinations showed that ABS6, SAV4, and KTN1 work together to ensure the robust ethylene response in the apical hook of dark-grown seedlings. Together, our findings establish ABS6 and SAV4 as positive regulators of cMT severing and ordering, and highlight the role of cMT dynamics in fine-tuning differential growth in plants.
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Affiliation(s)
- Yuanfeng Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Meng Deng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Haofeng Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Yan Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Yu Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Min Jia
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Hui Xue
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Jingxia Shao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Jun Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Yafei Qi
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Lijun An
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Fei Yu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Xiayan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, 712100, China
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33
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Bao Z, Xu Z, Zang J, Bürstenbinder K, Wang P. The Morphological Diversity of Plant Organs: Manipulating the Organization of Microtubules May Do the Trick. Front Cell Dev Biol 2021; 9:649626. [PMID: 33842476 PMCID: PMC8033015 DOI: 10.3389/fcell.2021.649626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/08/2021] [Indexed: 12/02/2022] Open
Affiliation(s)
- Zhiru Bao
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China.,Interdisciplinary Sciences Research Institute, Huazhong Agricultural University, Wuhan, China.,National R&D Centre for Citrus Preservation, Huazhong Agricultural University, Wuhan, China
| | - Zhijing Xu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China.,Interdisciplinary Sciences Research Institute, Huazhong Agricultural University, Wuhan, China.,National R&D Centre for Citrus Preservation, Huazhong Agricultural University, Wuhan, China
| | - Jingze Zang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China.,Interdisciplinary Sciences Research Institute, Huazhong Agricultural University, Wuhan, China.,National R&D Centre for Citrus Preservation, Huazhong Agricultural University, Wuhan, China
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Pengwei Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China.,Interdisciplinary Sciences Research Institute, Huazhong Agricultural University, Wuhan, China.,National R&D Centre for Citrus Preservation, Huazhong Agricultural University, Wuhan, China
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34
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Zang J, Klemm S, Pain C, Duckney P, Bao Z, Stamm G, Kriechbaumer V, Bürstenbinder K, Hussey PJ, Wang P. A novel plant actin-microtubule bridging complex regulates cytoskeletal and ER structure at ER-PM contact sites. Curr Biol 2021; 31:1251-1260.e4. [PMID: 33592189 DOI: 10.1016/j.cub.2020.12.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 10/15/2020] [Accepted: 12/09/2020] [Indexed: 01/27/2023]
Abstract
In plants, the cortical endoplasmic reticulum (ER) network is connected to the plasma membrane (PM) through the ER-PM contact sites (EPCSs), whose structures are maintained by EPCS resident proteins and the cytoskeleton.1-7 Strong co-alignment between EPCSs and the cytoskeleton is observed in plants,1,8 but little is known of how the cytoskeleton is maintained and regulated at the EPCS. Here, we have used a yeast-two-hybrid screen and subsequent in vivo interaction studies in plants by fluorescence resonance energy transfer (FRET)-fluorescence lifetime imaging microscopy (FLIM) analysis to identify two microtubule binding proteins, KLCR1 (kinesin-light-chain-related protein 1) and IQD2 (IQ67-domain 2), that interact with the actin binding protein NET3C and form a component of plant EPCS that mediates the link between the actin and microtubule networks. The NET3C-KLCR1-IQD2 module, acting as an actin-microtubule bridging complex, has a direct influence on ER morphology and EPCS structure. Their loss-of-function mutants, net3a/NET3C RNAi, klcr1, or iqd2, exhibit defects in pavement cell morphology, which we suggest is linked to the disorganization of both actin filaments and microtubules. In conclusion, our results reveal a novel cytoskeletal-associated complex, which is essential for the maintenance and organization of cytoskeletal structure and ER morphology at the EPCS and for normal plant cell morphogenesis.
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Affiliation(s)
- Jingze Zang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China; Interdisciplinary Sciences Research Institute, Huazhong Agricultural University, Wuhan 430007, China; Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK
| | - Sandra Klemm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle, Germany
| | - Charlotte Pain
- Plant Cell Biology, Oxford Brookes University, Oxford OX3 0BP, UK
| | - Patrick Duckney
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK
| | - Zhiru Bao
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China; Interdisciplinary Sciences Research Institute, Huazhong Agricultural University, Wuhan 430007, China
| | - Gina Stamm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle, Germany
| | | | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, 06120 Halle, Germany
| | - Patrick J Hussey
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK; Department of Experimental Plant Biology, Charles University, Faculty of Science, Viničná 5, 128 43 Praha 2, Czechia.
| | - Pengwei Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China; Interdisciplinary Sciences Research Institute, Huazhong Agricultural University, Wuhan 430007, China.
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35
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Guo C, Zhou J, Li D. New Insights Into Functions of IQ67-Domain Proteins. FRONTIERS IN PLANT SCIENCE 2021; 11:614851. [PMID: 33679817 PMCID: PMC7930834 DOI: 10.3389/fpls.2020.614851] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/21/2020] [Indexed: 05/31/2023]
Abstract
IQ67-domain (IQD) proteins, first identified in Arabidopsis and rice, are plant-specific calmodulin-binding proteins containing highly conserved motifs. They play a critical role in plant defenses, organ development and shape, and drought tolerance. Driven by comprehensive genome identification and analysis efforts, IQDs have now been characterized in several species and have been shown to act as microtubule-associated proteins, participating in microtubule-related signaling pathways. However, the precise molecular mechanisms underpinning their biological functions remain incompletely understood. Here we review current knowledge on how IQD family members are thought to regulate plant growth and development by affecting microtubule dynamics or participating in microtubule-related signaling pathways in different plant species and propose some new insights.
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Affiliation(s)
- Chunyue Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Jun Zhou
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Dengwen Li
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
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36
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Ai H, Cao Y, Jain A, Wang X, Hu Z, Zhao G, Hu S, Shen X, Yan Y, Liu X, Sun Y, Lan X, Xu G, Sun S. The ferroxidase LPR5 functions in the maintenance of phosphate homeostasis and is required for normal growth and development of rice. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:4828-4842. [PMID: 32618334 PMCID: PMC7475252 DOI: 10.1093/jxb/eraa211] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Accepted: 07/02/2020] [Indexed: 05/27/2023]
Abstract
Members of the Low Phosphate Root (LPR) family have been identified in rice (Oryza sativa) and expression analyses have been conducted. Here, we investigated the functions of one of the five members in rice, LPR5. qRT-PCR and promoter-GUS reporter analyses indicated that under Pi-sufficient conditions OsLPR5 was highly expressed in the roots, and specific expression occurred in the leaf collars and nodes, and its expression was increased under Pi-deficient conditions. In vitro analysis of the purified OsLPR5 protein showed that it exhibited ferroxidase activity. Overexpression of OsLPR5 triggered higher ferroxidase activity, and elevated concentrations of Fe(III) in the xylem sap and of total Fe in the roots and shoots. Transient expression of OsLPR5 in Nicotiana benthamiana provided evidence of its subcellular localization to the cell wall and endoplasmic reticulum. Knockout mutation in OsLPR5 by means of CRISPR-Cas9 resulted in adverse effects on Pi translocation, on the relative expression of Cis-NATOsPHO1;2, and on several morphological traits, including root development and yield potential. Our results indicate that ferroxidase-dependent OsLPR5 has both a broad-spectrum influence on growth and development in rice as well as affecting a subset of physiological and molecular traits that govern Pi homeostasis.
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Affiliation(s)
- Hao Ai
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Yue Cao
- School of Environmental Science and Engineering, Guangdong Provincial Key Lab for Environmental Pollution Control and Remediation Technology,Sun Yat-sen University, Guangzhou, China
| | - Ajay Jain
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
| | - Xiaowen Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
- Landscape Architecture Department, College of Horticulture, Nanjing Agricultural University, China
| | - Zhi Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Gengmao Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Siwen Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Xing Shen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Yan Yan
- Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, TX, USA
| | - Xiuli Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Yafei Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
- Institute of Eco-Environment and Plant Protection, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Xiaoxia Lan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Guohua Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
| | - Shubin Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, China
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37
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Ganguly A, Zhu C, Chen W, Dixit R. FRA1 Kinesin Modulates the Lateral Stability of Cortical Microtubules through Cellulose Synthase-Microtubule Uncoupling Proteins. THE PLANT CELL 2020; 32:2508-2524. [PMID: 32487563 PMCID: PMC7401024 DOI: 10.1105/tpc.19.00700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 05/18/2020] [Accepted: 05/29/2020] [Indexed: 05/03/2023]
Abstract
Cell wall assembly requires harmonized deposition of cellulose and matrix polysaccharides. Cortical microtubules orient the deposition of cellulose by guiding the trajectory of cellulose synthase complexes. Vesicles containing matrix polysaccharides are thought to be transported by the FRAGILE FIBER1 (FRA1) kinesin to facilitate their secretion along cortical microtubules. The cortical microtubule cytoskeleton thus may provide a platform to coordinate the delivery of cellulose and matrix polysaccharides, but the underlying molecular mechanisms remain unknown. Here, we show that the tail region of the Arabidopsis (Arabidopsis thaliana) FRA1 kinesin physically interacts with cellulose synthase-microtubule uncoupling (CMU) proteins that are important for the microtubule-dependent guidance of cellulose synthase complexes. Interaction with CMUs did not affect microtubule binding or motility of the FRA1 kinesin but differentially affected the protein levels and microtubule localization of CMU1 and CMU2, thus regulating the lateral stability of cortical microtubules. Phosphorylation of the FRA1 tail region inhibited binding to CMUs and consequently reversed the extent of cortical microtubule decoration by CMU1 and CMU2. Genetic experiments demonstrated the significance of this interaction to the growth and reproduction of Arabidopsis plants. We propose that modulation of CMU protein levels and microtubule localization by FRA1 provides a mechanism that stabilizes the sites of deposition of both cellulose and matrix polysaccharides.
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Affiliation(s)
- Anindya Ganguly
- Department of Biology and Center for Engineering Mechanobiology, Washington University in St. Louis, Missouri 63130
| | - Chuanmei Zhu
- Department of Biology and Center for Engineering Mechanobiology, Washington University in St. Louis, Missouri 63130
| | - Weizu Chen
- Department of Biology and Center for Engineering Mechanobiology, Washington University in St. Louis, Missouri 63130
| | - Ram Dixit
- Department of Biology and Center for Engineering Mechanobiology, Washington University in St. Louis, Missouri 63130
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38
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Wang C, Guo H, He X, Zhang S, Wang J, Wang L, Guo D, Guo X. Scaffold protein GhMORG1 enhances the resistance of cotton to Fusarium oxysporum by facilitating the MKK6-MPK4 cascade. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:1421-1433. [PMID: 31794094 PMCID: PMC7206998 DOI: 10.1111/pbi.13307] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 11/27/2019] [Accepted: 11/28/2019] [Indexed: 05/24/2023]
Abstract
In eukaryotes, MAPK scaffold proteins are crucial for regulating the function of MAPK cascades. However, only a few MAPK scaffold proteins have been reported in plants, and the molecular mechanism through which scaffold proteins regulate the function of the MAPK cascade remains poorly understood. Here, we identified GhMORG1, a GhMKK6-GhMPK4 cascade scaffold protein that positively regulates the resistance of cotton to Fusarium oxysporum. GhMORG1 interacted with GhMKK6 and GhMPK4, and the overexpression of GhMORG1 in cotton protoplasts dramatically increased the activity of the GhMKK6-GhMPK4 cascade. Quantitative phosphoproteomics was used to clarify the mechanism of GhMORG1 in regulating disease resistance, and thirty-two proteins were considered as the putative substrates of the GhMORG1-dependent GhMKK6-GhMPK4 cascade. These putative substrates were involved in multiple disease resistance processes, such as cellular amino acid metabolic processes, calcium ion binding and RNA binding. The kinase assays verified that most of the putative substrates were phosphorylated by the GhMKK6-GhMPK4 cascade. For functional analysis, nine putative substrates were silenced in cotton, respectively. The resistance of cotton to F. oxysporum was decreased in the substrate-silenced cottons. These results suggest that GhMORG1 regulates several different disease resistance processes by facilitating the phosphorylation of GhMKK6-GhMPK4 cascade substrates. Taken together, these findings reveal a new plant MAPK scaffold protein and provide insights into the mechanism of plant resistance to pathogens.
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Affiliation(s)
- Chen Wang
- State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural UniversityTaianChina
| | - Hongbin Guo
- Statistics DepartmentUniversity of AucklandAucklandNew Zealand
| | - Xiaowen He
- State Key Laboratory of Crop BiologyShandong Agricultural UniversityTaianChina
| | - Shuxin Zhang
- State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural UniversityTaianChina
| | - Jiayu Wang
- State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural UniversityTaianChina
| | - Lijun Wang
- State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural UniversityTaianChina
| | - Dezheng Guo
- State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural UniversityTaianChina
| | - Xingqi Guo
- State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural UniversityTaianChina
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Yang B, Wendrich JR, De Rybel B, Weijers D, Xue H. Rice microtubule-associated protein IQ67-DOMAIN14 regulates grain shape by modulating microtubule cytoskeleton dynamics. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:1141-1152. [PMID: 31622529 PMCID: PMC7152617 DOI: 10.1111/pbi.13279] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 05/07/2023]
Abstract
Cortical microtubule (MT) arrays play a critical role in plant cell shape determination by defining the direction of cell expansion. As plants continuously adapt to ever-changing environmental conditions, multiple environmental and developmental inputs need to be translated into changes of the MT cytoskeleton. Here, we identify and functionally characterize an auxin-inducible and MT-localized protein OsIQ67-DOMAIN14 (OsIQD14), which is highly expressed in rice seed hull cells. We show that while deficiency of OsIQD14 results in short and wide seeds and increases overall yield, overexpression leads to narrow and long seeds, caused by changed MT alignment. We further show that OsIQD14-mediated MT reordering is regulated by specifically affecting MT dynamics, and ectopic expression of OsIQD14 in Arabidopsis could change the cell shape both in pavement cells and in hypocotyl cells. Additionally, OsIQD14 activity is tightly controlled by calmodulin proteins, providing an alternative way to modify the OsIQD14 activity. Our results indicate that OsIQD14 acts as a key factor in regulating MT rearrangements in rice hull cells and hence the grain shape, and allows effective local cell shape manipulation to improve the rice yield trait.
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Affiliation(s)
- BaoJun Yang
- National Key Laboratory of Plant Molecular GeneticsCAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGhentBelgium
- VIB Center for Plant Systems BiologyGhentBelgium
| | - Jos R. Wendrich
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGhentBelgium
- VIB Center for Plant Systems BiologyGhentBelgium
- Laboratory of BiochemistryWageningen UniversityWageningenThe Netherlands
| | - Bert De Rybel
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGhentBelgium
- VIB Center for Plant Systems BiologyGhentBelgium
| | - Dolf Weijers
- Laboratory of BiochemistryWageningen UniversityWageningenThe Netherlands
| | - Hong‐Wei Xue
- National Key Laboratory of Plant Molecular GeneticsCAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
- School of Agriculture and BiologyShanghai Jiao Tong UniversityShanghaiChina
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Cao Y, Jain A, Ai H, Liu X, Wang X, Hu Z, Sun Y, Hu S, Shen X, Lan X, Xu G, Sun S. OsPDR2 mediates the regulation on the development response and maintenance of Pi homeostasis in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 149:1-10. [PMID: 32028088 DOI: 10.1016/j.plaphy.2019.12.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/02/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
Inorganic orthophosphate (Pi), a major form of essential macronutrient phosphorus (P), is available in rhizosphere for acquisition and assimilation by plants. However, the limited availability of Pi in soils affects the growth and development of plants. In Arabidopsis thaliana (Arabidopsis), Phosphate Deficiency Response2 (AtPDR2), interacts genetically with Low Phosphate Root1 (AtLPR1) in the endoplasmic reticulum (ER) and plays a key role in the inhibition of primary root growth (PRG) during Pi deficiency. However, the role of OsPDR2, the homolog of AtPDR2, either in roots response to Pi deficiency and/or in growth and development has not been elucidated as yet. Therefore, qRT-PCR was employed to determine the spatiotemporal effects and the availability of Pi on the expression of OsPDR2. OsPDR2 showed variable levels of relative expression pattern in vegetative and/or reproductive tissues analyzed at different stages of growth and development (5-17 weeks). Transient expression analysis revealed its subcellular localization to the ER. Further, the reverse genetics approach was employed for determining the function of OsPDR2 by generating RNAi lines (Ri2, Ri9, and Ri18). The study revealed significant inhibitory effects of RNAi-mediated suppression of OsPDR2 on the development of root, male reproductive traits, and yield. Moreover, 32P isotope labeling and split-root experiments under different Pi regime with RNAi lines revealed the function of OsPDR2 in regulating homeostasis of Pi.
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Affiliation(s)
- Yue Cao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Ajay Jain
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India.
| | - Hao Ai
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Xiuli Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Xiaowen Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China; Landscape Architecture Department, College of Horticulture, Nanjing Agricultural University, 210095, China.
| | - Zhi Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Yafei Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China; Institute of Eco-Environment and Plant Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China.
| | - Siwen Hu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Xing Shen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Xiaoxia Lan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Guohua Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
| | - Shubin Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, 210095, China.
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Liu Z, Haider MS, Khan N, Fang J. Comprehensive Sequence Analysis of IQD Gene Family and their Expression Profiling in Grapevine ( Vitis vinifera). Genes (Basel) 2020; 11:genes11020235. [PMID: 32102395 PMCID: PMC7073947 DOI: 10.3390/genes11020235] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/14/2020] [Accepted: 02/19/2020] [Indexed: 12/25/2022] Open
Abstract
The plant-specific IQ67-domain (IQD) protein family members are downstream targets of calcium sensors, known to regulate plant growth and lateral organ polarity, and basal defense response against environmental cues. No systematic study of IQD gene family has been performed on grapevine. The public availability of grapevine genome enables us to perform identification, phylogeny, chromosomal orientation, and gene structure analysis of the IQD genes in grapevine. We identified 49 VvIQD genes (VvIQD1–VvIQD49) and further classified them into eight subgroups based on phylogenetic relationships. The 49 VvIQD genes were assigned to 19 different chromosomal positions. The collinear relationship between grapevine and Arabidopsis IQDs (VvIQD and AtIQD), and within grapevine VvIQDs, was highly conserved. In addition, most of duplicated gene pairs showed Ka/Ks ratio less than 1.00, indicating purifying selection within these gene pairs, implying functional discrepancy after duplication. Transcription profiling of VvIQD genes shed light on their specific role in grapevine tissue and organ development. The qRT-PCR validation of the 49 VvIQD genes in grape berry tissue from cultivars with distinct berry shape during developmental phases suggested candidate genes involved in the shape of grape berries. The subcellular prediction of VvIQD22, VvIQD23, VvIQD38, and VvIQD49 genes validated their localization in the nucleus and plasma membrane. The VvIQD49 protein interaction with VvCaM2 was also verified by bimolecular fluorescence complementation (BiFC) analysis in the plasma membrane. Our findings will be valuable for the functional genomic studies for desirable shape development of grape berries.
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Affiliation(s)
- Zhongjie Liu
- Key Laboratory of Genetics and Fruit Development, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.L.); (M.S.H.)
| | - Muhammad Salman Haider
- Key Laboratory of Genetics and Fruit Development, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.L.); (M.S.H.)
| | - Nadeem Khan
- Ottawa Research and Development Center, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada;
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Jinggui Fang
- Key Laboratory of Genetics and Fruit Development, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.L.); (M.S.H.)
- Correspondence: ; Tel.: +86-02584395217; Fax: +86-02584395217
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Buschmann H, Borchers A. Handedness in plant cell expansion: a mutant perspective on helical growth. THE NEW PHYTOLOGIST 2020; 225:53-69. [PMID: 31254400 DOI: 10.1111/nph.16034] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
Many plant mutants are known that exhibit some degree of helical growth. This 'twisted' phenotype has arisen frequently in mutant screens of model organisms, but it is also found in cultivars of ornamental plants, including trees. The phenomenon, in many cases, is based on defects in cell expansion symmetry. Any complete model which explains the anisotropy of plant cell growth must ultimately explain how helical cell expansion comes into existence - and how it is normally avoided. While the mutations observed in model plants mainly point to the microtubule system, additional affected components involve cell wall functions, auxin transport and more. Evaluation of published data suggests a two-way mechanism underlying the helical growth phenomenon: there is, apparently, a microtubular component that determines handedness, but there is also an influence arising in the cell wall that feeds back into the cytoplasm and affects cellular handedness. This idea is supported by recent reports demonstrating the involvement of the cell wall integrity pathway. In addition, there is mounting evidence that calcium is an important relayer of signals relating to the symmetry of cell expansion. These concepts suggest experimental approaches to untangle the phenomenon of helical cell expansion in plant mutants.
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Affiliation(s)
- Henrik Buschmann
- Botanical Institute, Biology and Chemistry Department, University of Osnabrück, 49076, Osnabrück, Germany
| | - Agnes Borchers
- Botanical Institute, Biology and Chemistry Department, University of Osnabrück, 49076, Osnabrück, Germany
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Yang X, Kirungu JN, Magwanga RO, Xu Y, Pu L, Zhou Z, Hou Y, Cai X, Wang K, Liu F. Knockdown of GhIQD31 and GhIQD32 increases drought and salt stress sensitivity in Gossypium hirsutum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 144:166-177. [PMID: 31568959 DOI: 10.1016/j.plaphy.2019.09.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/15/2019] [Accepted: 09/17/2019] [Indexed: 05/20/2023]
Abstract
Drought, salinity and cold stresses have a major impact on cotton production, thus identification and utilization of plant genes vital for plant improvement Whole-genome identification and functional characterizations of the IQ67-domain (IQD) protein family was carried out in which 148, 77, and 79 IQD genes were identified in Gossypium hirsutum, G. raimondii, and G. arboreum. The entire IQD proteins had varied physiochemical properties, however; their grand hydropathy values were negative, which demonstrated that the proteins were hydrophilic, a property common among the proteins encoded by various stresses responsive genes, such as the late embryogenesis abundant (LEA) proteins. The IQD proteins were predicted to be majorly sublocalized in the nucleus; moreover, various cis-regulatory elements with higher role in enhancing abiotic stress tolerance were detected. RNA-seq and RT-qPCR analysis revealed two key genes, Gh_D06G0014 and Gh_A09G1608 with significantly higher upregulation across the various tissues under drought, salt and cold stress. Knockdown of the two genes negatively affected the ability of G. hirsutum to tolerate the effects of the three stress factors, being all the antioxidant assayed were significantly low concentrations compared to the oxidizing enzymes in VIGS plants under stress, furthermore, morphological and physiological traits were all negatively affected in VIGS plants. Expression levels of GhLEA2, GhCDK_F4, GPCR (TOM1) and Gh_A05G2067 (TH), the stress responsive genes were all downregulated in the VIGS plants, but significantly upregulated in WT and positively controlled plants. The results demonstrated that the IQD genes could be responsible for enhancing drought, salt and cold stress tolerance in cotton.
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Affiliation(s)
- Xiu Yang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China; Cotton Research Institute of Jiangxi Province, Jiujiang, Jiangxi, 332105, China
| | - Joy Nyangasi Kirungu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China
| | - Richard Odongo Magwanga
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China; School of Biological and Physical Sciences (SBPS), Jaramogi Oginga Odinga University of Science and Technology (JOOUST), P.O Box 210-40601, Bondo, Kenya
| | - Yuanchao Xu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China
| | - Lu Pu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China
| | - Zhongli Zhou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China
| | - Yuqing Hou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China
| | - Xiaoyan Cai
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China
| | - Kunbo Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China; Tarim University, Alar, Xinjiang, 843300, China.
| | - Fang Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, Henan, 455000, China; School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China.
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Wang Y, Clevenger JP, Illa-Berenguer E, Meulia T, van der Knaap E, Sun L. A Comparison of sun, ovate, fs8.1 and Auxin Application on Tomato Fruit Shape and Gene Expression. PLANT & CELL PHYSIOLOGY 2019; 60:1067-1081. [PMID: 30753610 DOI: 10.1093/pcp/pcz024] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 02/07/2019] [Indexed: 05/04/2023]
Abstract
Elongated tomato fruit shape is the result of the action of the fruit shape genes possibly in coordination with the phytohormone auxin. To investigate the possible link between auxin and the fruit shape genes, a series of auxin (2,4-D) treatments were performed on the wild-type and the fruit shape near-isogenic lines (NILs) in Solanum pimpinellifolium accession LA1589 background. Morphological and histological analyses indicated that auxin application approximately 3 weeks before anthesis led to elongated pear-shaped ovaries and fruits, which was mainly attributed to the increase of ovary/fruit proximal end caused by the increase of both cell number and cell size. Fruit shape changes caused by SUN, OVATE and fs8.1 were primarily due to the alterations of cell number along different growth axes. Particularly, SUN caused elongation by extending cell number along the entire proximal-distal axis, whereas OVATE caused fruit elongation in the proximal area, which was most similar to the effect of auxin on ovary shape. Expression analysis of flower buds at different stages in fruit shape NILs indicated that SUN had a stronger impact on the transcriptome than OVATE and fs8.1. The sun NIL differentially expressed genes were enriched in several biological processes, such as lipid metabolism, ion transmembrane and actin cytoskeleton organization. Additionally, SUN also shifted the expression of the auxin-related genes, including those involved in auxin biosynthesis, homeostasis, signal transduction and polar transport, indicating that SUN may regulate ovary/fruit shape through modifying the expression of auxin-related genes very early during the formation of the ovary in the developing flower.
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Affiliation(s)
- Yanping Wang
- College of Horticulture, China Agricultural University, Beijing, P.R. China
- Department of Horticulture and Crop Science, The Ohio State University/OARDC, Wooster, OH, USA
- National Engineering Research Center for Vegetables, Beijing Academy of Agriculture and Forestry Sciences, Beijing, P.R. China
| | - Josh P Clevenger
- Department of Horticulture and Crop Science, The Ohio State University/OARDC, Wooster, OH, USA
- Institute of Plant Breeding, Genetics & Genomics, University of Georgia, Athens, GA, USA
- Center for Applied Genetic Technologies, Mars Wrigley Confectionery, Athens, GA, USA
| | | | - Tea Meulia
- Department of Plant Pathology, Molecular and Cellular Imaging Center, The Ohio State University/OARDC, Wooster, OH, USA
| | - Esther van der Knaap
- Department of Horticulture and Crop Science, The Ohio State University/OARDC, Wooster, OH, USA
- Institute of Plant Breeding, Genetics & Genomics, University of Georgia, Athens, GA, USA
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, USA
| | - Liang Sun
- College of Horticulture, China Agricultural University, Beijing, P.R. China
- Department of Horticulture and Crop Science, The Ohio State University/OARDC, Wooster, OH, USA
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, P.R. China
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Cuong DM, Park CH, Bong SJ, Kim NS, Kim JK, Park SU. Enhancement of Glucosinolate Production in Watercress ( Nasturtium officinale) Hairy Roots by Overexpressing Cabbage Transcription Factors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4860-4867. [PMID: 30973222 DOI: 10.1021/acs.jafc.9b00440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Glucosinolates are secondary metabolites that play important roles in plant defense and human health, as their production in plants is enhanced by overexpressing transcription factors. Here, four cabbage transcription factors (IQD1-1, IQD1-2, MYB29-1, and MYB29-2) affecting genes in both aliphatic and indolic glucosinolates biosynthetic pathways and increasing glucosinolates accumulation were overexpressed in watercress. Five IQD1-1, six IQD1-2, five MYB29-1, six MYB29-2, and one GUS hairy root lines were created. The expression of all genes involved in glucosinolates biosynthesis was higher in transgenic lines than in the GUS hairy root line, in agreement with total glucosinolates contents, determined by high-performance liquid chromatography. In transgenic IQD1-1 (1), IQD1-2 (4), MYB29-1 (2), and MYB29-2 (1) hairy root lines, total glucosinolates were 3.39-, 3.04-, 2.58-, and 4.69-fold higher than those in the GUS hairy root lines, respectively. These results suggest a central regulatory function for IQD1-1, IQD1-2, MYB29-1, and MYB29-2 transcription factors in glucosinolates biosynthesis in watercress hairy roots.
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Affiliation(s)
- Do Manh Cuong
- Department of Crop Science , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Korea
| | - Chang Ha Park
- Department of Crop Science , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Korea
| | - Sun Ju Bong
- Department of Crop Science , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Korea
| | - Nam Su Kim
- Department of Crop Science , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Korea
| | - Jae Kwang Kim
- Division of Life Sciences and Bio-Resource and Environmental Center , Incheon National University , Yeonsu-gu, Incheon 22012 , Korea
| | - Sang Un Park
- Department of Crop Science , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Korea
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Yuan J, Liu T, Yu Z, Li Y, Ren H, Hou X, Li Y. Genome-wide analysis of the Chinese cabbage IQD gene family and the response of BrIQD5 in drought resistance. PLANT MOLECULAR BIOLOGY 2019; 99:603-620. [PMID: 30783953 DOI: 10.1007/s11103-019-00839-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 02/09/2019] [Indexed: 05/14/2023]
Abstract
KEY MESSAGE Thirty-five IQD genes were identified and analysed in Chinese cabbage and BrIQD5 transgenic plants enhanced the drought resistance of plants. The IQD (IQ67-domain) family plays an important role in various abiotic stress responses in plant species. However, the roles of IQD genes in the Chinese cabbage response to abiotic stress remain unclear. Here, 35 IQD genes, from BrIQD1 to BrIQD35, were identified in Chinese cabbage (Brassica rapa ssp. pekinensis). Based on the phylogenetic analysis, these genes were clustered into three subfamilies (I-III), and members within the same subfamilies shared conserved exon-intron distribution and motif composition. The 35 BrIQD genes were unevenly distributed on 9 of the 10 chromosomes with 4 segmental duplication events. Ka/Ks ratios showed that the duplicated BrIQDs had mainly experienced strong purifying selection. Quantitative real-time polymerase chain reaction of 35 BrIQDs under PEG6000 indicated that BrIQD5 was significantly induced by PEG6000. To verify BrIQD5 function, BrIQD5 was heterologously overexpressed in tobacco and was silenced in Chinese cabbage. BrIQD5-overexpressed plants showed more tolerance to drought stress than wild-type plants, while BrIQD5-silenced plants in Chinese cabbage showed decreased drought tolerance. Additionally, six BrIQD5 potential interactive proteins were isolated by the yeast two-hybrid assay, including BrCaMa, BrCaMb and four other stress-related proteins. Motif IQ1 of BrIQD5 is important for the interaction with BrCaMa and BrCaMb, and the isoleucine in motif IQ1 is an essential amino acid for calmodulin binding to BrIQD5. The identification and cloning of the new Chinese cabbage drought tolerance genes will promote the drought-resistant breeding of Chinese cabbage and help to better understand the mechanism of IQD involved in the drought tolerance of plants.
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Affiliation(s)
- Jingping Yuan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tongkun Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhanghong Yu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yan Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Haibo Ren
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ying Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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Harigaya W, Takahashi H. Phytochrome Mediates Light Signal for Cortical Microtubule Randomization that Enables Root Hair Formation in Lettuce Seedlings. CYTOLOGIA 2019. [DOI: 10.1508/cytologia.84.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Kölling M, Kumari P, Bürstenbinder K. Calcium- and calmodulin-regulated microtubule-associated proteins as signal-integration hubs at the plasma membrane-cytoskeleton nexus. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:387-396. [PMID: 30590729 DOI: 10.1093/jxb/ery397] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 12/06/2018] [Indexed: 05/09/2023]
Abstract
Plant growth and development are a genetically predetermined series of events but can change dramatically in response to environmental stimuli, involving perpetual pattern formation and reprogramming of development. The rate of growth is determined by cell division and subsequent cell expansion, which are restricted and controlled by the cell wall-plasma membrane-cytoskeleton continuum, and are coordinated by intricate networks that facilitate intra- and intercellular communication. An essential role in cellular signaling is played by calcium ions, which act as universal second messengers that transduce, integrate, and multiply incoming signals during numerous plant growth processes, in part by regulation of the microtubule cytoskeleton. In this review, we highlight recent advances in the understanding of calcium-mediated regulation of microtubule-associated proteins, their function at the microtubule cytoskeleton, and their potential role as hubs in crosstalk with other signaling pathways.
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Affiliation(s)
- Malte Kölling
- Leibniz Institute of Plant Biochemistry, Weinberg, Halle/Saale, Germany
| | - Pratibha Kumari
- Leibniz Institute of Plant Biochemistry, Weinberg, Halle/Saale, Germany
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Mitra D, Klemm S, Kumari P, Quegwer J, Möller B, Poeschl Y, Pflug P, Stamm G, Abel S, Bürstenbinder K. Microtubule-associated protein IQ67 DOMAIN5 regulates morphogenesis of leaf pavement cells in Arabidopsis thaliana. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:529-543. [PMID: 30407556 PMCID: PMC6322583 DOI: 10.1093/jxb/ery395] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/22/2018] [Indexed: 05/14/2023]
Abstract
Plant microtubules form a highly dynamic intracellular network with important roles for regulating cell division, cell proliferation, and cell morphology. Their organization and dynamics are co-ordinated by various microtubule-associated proteins (MAPs) that integrate environmental and developmental stimuli to fine-tune and adjust cytoskeletal arrays. IQ67 DOMAIN (IQD) proteins recently emerged as a class of plant-specific MAPs with largely unknown functions. Here, using a reverse genetics approach, we characterize Arabidopsis IQD5 in terms of its expression domains, subcellular localization, and biological functions. We show that IQD5 is expressed mostly in vegetative tissues, where it localizes to cortical microtubule arrays. Our phenotypic analysis of iqd5 loss-of-function lines reveals functions of IQD5 in pavement cell (PC) shape morphogenesis. Histochemical analysis of cell wall composition further suggests reduced rates of cellulose deposition in anticlinal cell walls, which correlate with reduced anisotropic expansion. Lastly, we demonstrate IQD5-dependent recruitment of calmodulin calcium sensors to cortical microtubule arrays and provide first evidence for important roles for calcium in regulation of PC morphogenesis. Our work identifies IQD5 as a novel player in PC shape regulation and, for the first time, links calcium signaling to developmental processes that regulate anisotropic growth in PCs.
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Affiliation(s)
- Dipannita Mitra
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Sandra Klemm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Pratibha Kumari
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Jakob Quegwer
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Birgit Möller
- Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Yvonne Poeschl
- Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
- iDiv, German Integrative Research Center for Biodiversity, Leipzig, Germany
| | - Paul Pflug
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Gina Stamm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Steffen Abel
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
- Department of Plant Sciences, University of California, Davis, CA, USA
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
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Mitra D, Klemm S, Kumari P, Quegwer J, Möller B, Poeschl Y, Pflug P, Stamm G, Abel S, Bürstenbinder K. Microtubule-associated protein IQ67 DOMAIN5 regulates morphogenesis of leaf pavement cells in Arabidopsis thaliana. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:529-543. [PMID: 30407556 DOI: 10.1101/268466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/22/2018] [Indexed: 05/23/2023]
Abstract
Plant microtubules form a highly dynamic intracellular network with important roles for regulating cell division, cell proliferation, and cell morphology. Their organization and dynamics are co-ordinated by various microtubule-associated proteins (MAPs) that integrate environmental and developmental stimuli to fine-tune and adjust cytoskeletal arrays. IQ67 DOMAIN (IQD) proteins recently emerged as a class of plant-specific MAPs with largely unknown functions. Here, using a reverse genetics approach, we characterize Arabidopsis IQD5 in terms of its expression domains, subcellular localization, and biological functions. We show that IQD5 is expressed mostly in vegetative tissues, where it localizes to cortical microtubule arrays. Our phenotypic analysis of iqd5 loss-of-function lines reveals functions of IQD5 in pavement cell (PC) shape morphogenesis. Histochemical analysis of cell wall composition further suggests reduced rates of cellulose deposition in anticlinal cell walls, which correlate with reduced anisotropic expansion. Lastly, we demonstrate IQD5-dependent recruitment of calmodulin calcium sensors to cortical microtubule arrays and provide first evidence for important roles for calcium in regulation of PC morphogenesis. Our work identifies IQD5 as a novel player in PC shape regulation and, for the first time, links calcium signaling to developmental processes that regulate anisotropic growth in PCs.
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Affiliation(s)
- Dipannita Mitra
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Sandra Klemm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Pratibha Kumari
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Jakob Quegwer
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Birgit Möller
- Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Yvonne Poeschl
- Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
- iDiv, German Integrative Research Center for Biodiversity, Leipzig, Germany
| | - Paul Pflug
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Gina Stamm
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
| | - Steffen Abel
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
- Department of Plant Sciences, University of California, Davis, CA, USA
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry (IPB),Halle (Saale), Germany
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