1
|
Zhang Y, Li J, Guo K, Wang T, Gao L, Sun Z, Ma C, Wang C, Tian Y, Zheng X. Strigolactones alleviate AlCl 3 stress by vacuolar compartmentalization and cell wall blocking in apple. Plant J 2024. [PMID: 38565306 DOI: 10.1111/tpj.16753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 02/22/2024] [Accepted: 03/20/2024] [Indexed: 04/04/2024]
Abstract
Poor management and excess fertilization of apple (Malus domestica Borkh.) orchards are causing increasingly serious soil acidification, resulting in Al toxicity and direct poisoning of roots. Strigolactones (SLs) are reported to be involved in plant responses to abiotic stress, but their role and mechanism under AlCl3 stress remain unknown. Here, we found that applying 1 μm GR24 (an SL analoge) significantly alleviated AlCl3 stress of M26 apple rootstock, mainly by blocking the movement of Al through cell wall and by vacuolar compartmentalization of Al. RNA-seq analysis identified the core transcription factor gene MdWRKY53, and overexpressing MdWRKY53 enhanced AlCl3 tolerance in transgenic apple plants through the same mechanism as GR24. Subsequently, we identified MdPMEI45 (encoding pectin methylesterase inhibitor) and MdALS3 (encoding an Al transporter) as downstream target genes of MdWRKY53 using chromatin immunoprecipitation followed by sequencing (ChIP-seq). GR24 enhanced the interaction between MdWRKY53 and the transcription factor MdTCP15, further increasing the binding of MdWRKY53 to the MdPMEI45 promoter and inducing MdPMEI45 expression to prevent Al from crossing cell wall. MdWRKY53 also bound to the promoter of MdALS3 and enhanced its transcription to compartmentalize Al in vacuoles under AlCl3 stress. We therefore identified two modules involved in alleviating AlCl3 stress in woody plant apple: the SL-WRKY+TCP-PMEI module required for excluding external Al by blocking the entry of Al3+ into cells and the SL-WRKY-ALS module allowing internal detoxification of Al through vacuolar compartmentalization. These findings lay a foundation for the practical application of SLs in agriculture.
Collapse
Affiliation(s)
- Yong Zhang
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Jianyu Li
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Kexin Guo
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Tianchao Wang
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Lijie Gao
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Zhijuan Sun
- College of Life Science, Qingdao Agricultural University, Qingdao, 266109, China
| | - Changqing Ma
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Caihong Wang
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Yike Tian
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| | - Xiaodong Zheng
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao, 266109, China
| |
Collapse
|
2
|
Jamil M, Alagoz Y, Wang JY, Chen GTE, Berqdar L, Kharbatia NM, Moreno JC, Kuijer HNJ, Al-Babili S. Abscisic acid inhibits germination of Striga seeds and is released by them likely as a rhizospheric signal supporting host infestation. Plant J 2024; 117:1305-1316. [PMID: 38169533 DOI: 10.1111/tpj.16610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/29/2023] [Accepted: 12/15/2023] [Indexed: 01/05/2024]
Abstract
Seeds of the root parasitic plant Striga hermonthica undergo a conditioning process under humid and warm environments before germinating in response to host-released stimulants, particularly strigolactones (SLs). The plant hormone abscisic acid (ABA) regulates different growth and developmental processes, and stress response; however, its role during Striga seed germination and early interactions with host plants is under-investigated. Here, we show that ABA inhibited Striga seed germination and that hindering its biosynthesis induced conditioning and germination in unconditioned seeds, which was significantly enhanced by treatment with the SL analog rac-GR24. However, the inhibitory effect of ABA remarkably decreased during conditioning, confirming the loss of sensitivity towards ABA in later developmental stages. ABA measurement showed a substantial reduction of its content during the early conditioning stage and a significant increase upon rac-GR24-triggered germination. We observed this increase also in released seed exudates, which was further confirmed by using the Arabidopsis ABA-reporter GUS marker line. Seed exudates of germinated seeds, containing elevated levels of ABA, impaired the germination of surrounding Striga seeds in vitro and promoted root growth of a rice host towards germinated Striga seeds. Application of ABA as a positive control caused similar effects, indicating its function in Striga/Striga and Striga/host communications. In summary, we show that ABA is an essential player during seed dormancy and germination processes in Striga and acts as a rhizospheric signal likely to support host infestation.
Collapse
Affiliation(s)
- Muhammad Jamil
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Yagiz Alagoz
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jian You Wang
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Guan-Ting Erica Chen
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Lamis Berqdar
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Najeh M Kharbatia
- Analytical Chemistry Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Juan C Moreno
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Hendrik N J Kuijer
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| |
Collapse
|
3
|
Wang JY, Chen GTE, Balakrishna A, Jamil M, Berqdar L, Al-Babili S. Strigolactone biosynthesis in rice can occur via a 9-cis-3-OH-10'-apo-β-carotenal intermediate. FEBS Lett 2024; 598:571-578. [PMID: 38373744 DOI: 10.1002/1873-3468.14828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 12/07/2023] [Accepted: 01/30/2024] [Indexed: 02/21/2024]
Abstract
Strigolactones (SLs) play a crucial role in regulating plant architecture and mediating rhizosphere interactions. They are synthesized from all-trans-β-carotene converted into the intermediate carlactone (CL) via the intermediate 9-cis-β-apo-10'-carotenal. Recent studies indicate that plants can also synthesize 3-OH-CL from all-trans-β-zeaxanthin via the intermediate 9-cis-3-OH-β-apo-10'-carotenal. However, the question of whether plants can form bioactive SLs from 9-cis-3-OH-β-apo-10'-carotenal remains elusive. In this study, we supplied the 13 C-labeled 9-cis-3-OH-β-apo-10'-carotenal to rice seedlings and monitored the synthesis of SLs using liquid chromatography-mass spectrometry (LC-MS) and Striga bioassay. We further validated the biological activity of 9-cis-3-OH-β-apo-10'-carotenal-derived SLs using the ccd7/d17 SL-deficient mutant, which demonstrated increased Striga seed-germinating activity and partial rescue of tiller numbers and plant height. Our results establish 9-cis-3-OH-β-apo-10'-carotenal as a significant SL biosynthetic intermediate with implications for understanding plant hormonal functions and potential applications in agriculture.
Collapse
Affiliation(s)
- Jian You Wang
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Guan-Ting Erica Chen
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- The Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Aparna Balakrishna
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Muhammad Jamil
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Lamis Berqdar
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- The Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| |
Collapse
|
4
|
Clark J, Bennett T. Cracking the enigma: understanding strigolactone signalling in the rhizosphere. J Exp Bot 2024; 75:1159-1173. [PMID: 37623748 PMCID: PMC10860530 DOI: 10.1093/jxb/erad335] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/21/2023] [Indexed: 08/26/2023]
Abstract
The rhizosphere is a complex physical and chemical interface between plants and their underground environment, both biotic and abiotic. Plants exude a large number of chemicals into the rhizosphere in order to manipulate these biotic and abiotic components. Among such chemicals are strigolactones, ancient signalling molecules that in flowering plants act as both internal hormones and external rhizosphere signals. Plants exude strigolactones to communicate with their preferred symbiotic partners and neighbouring plants, but at least some classes of parasitic organisms are able to 'crack' these private messages and eavesdrop on the signals. In this review, we examine the intentional consequences of strigolactone exudation, and also the unintentional consequences caused by eavesdroppers. We examine the molecular mechanisms by which strigolactones act within the rhizosphere, and attempt to understand the enigma of the strigolactone molecular diversity synthesized and exuded into the rhizosphere by plants. We conclude by looking at the prospects of using improved understanding of strigolactones in agricultural contexts.
Collapse
Affiliation(s)
- Jed Clark
- School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Tom Bennett
- School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| |
Collapse
|
5
|
Takai T. Potential of rice tillering for sustainable food production. J Exp Bot 2024; 75:708-720. [PMID: 37933683 PMCID: PMC10837021 DOI: 10.1093/jxb/erad422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 10/31/2023] [Indexed: 11/08/2023]
Abstract
Tillering, also known as shoot branching, is a fundamental trait for cereal crops such as rice to produce sufficient panicle numbers. Effective tillering that guarantees successful panicle production is essential for achieving high crop yields. Recent advances in molecular biology have revealed the mechanisms underlying rice tillering; however, in rice breeding and cultivation, there remain limited genes or alleles suitable for effective tillering and high yields. A recently identified quantitative trait locus (QTL) called MORE PANICLES 3 (MP3) has been cloned as a single gene and shown to promote tillering and to moderately increase panicle number. This gene is an ortholog of the maize domestication gene TB1, and it has the potential to increase grain yield under ongoing climate change and in nutrient-poor environments. This review reconsiders the potential and importance of tillering for sustainable food production. Thus, I provide an overview of rice tiller development and the currently understood molecular mechanisms that underly it, focusing primarily on the biosynthesis and signaling of strigolactones, effective QTLs, and the importance of MP3 (TB1). The possible future benefits in using promising QTLs such as MP3 to explore agronomic solutions under ongoing climate change and in nutrient-poor environments are also highlighted.
Collapse
Affiliation(s)
- Toshiyuki Takai
- Japan International Research Center for Agricultural Sciences (JIRCAS), 305-8686 Tsukuba, Ibaraki, Japan
| |
Collapse
|
6
|
Özbilen A, Sezer F, Taşkin KM. Identification and expression of strigolactone biosynthesis and signaling genes and the in vitro effects of strigolactones in olive ( Olea europaea L.). Plant Direct 2024; 8:e568. [PMID: 38405354 PMCID: PMC10894696 DOI: 10.1002/pld3.568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 02/27/2024]
Abstract
Strigolactones (SLs), synthesized in plant roots, play a dual role in modulating plant growth and development, and in inducing the germination of parasitic plant seeds and arbuscular mycorrhizal fungi in the rhizosphere. As phytohormones, SLs are crucial in regulating branching and shaping plant architecture. Despite the significant impact of branching strategies on the yield performance of fruit crops, limited research has been conducted on SLs in these crops. In our study, we identified the transcript sequences of SL biosynthesis and signaling genes in olive (Olea europaea L.) using rapid amplification of cDNA ends. We predicted the corresponding protein sequences, analyzed their characteristics, and conducted molecular docking with bioinformatics tools. Furthermore, we quantified the expression levels of these genes in various tissues using quantitative real-time PCR. Our findings demonstrate the predominant expression of SL biosynthesis and signaling genes (OeD27, OeMAX3, OeMAX4, OeMAX1, OeD14, and OeMAX2) in roots and lateral buds, highlighting their importance in branching. Treatment with rac-GR24, an SL analog, enhanced the germination frequency of olive seeds in vitro compared with untreated embryos. Conversely, inhibition of SL biosynthesis with TIS108 increased lateral bud formation in a hard-to-root cultivar, underscoring the role of SLs as phytohormones in olives. These results suggest that modifying SL biosynthesis and signaling pathways could offer novel approaches for olive breeding, with potential applicability to other fruit crops.
Collapse
Affiliation(s)
- Aslıhan Özbilen
- Department of BiologyCanakkale Onsekiz Mart UniversityCanakkaleTurkey
| | - Fatih Sezer
- Department of Molecular Biology and GeneticsCanakkale Onsekiz Mart UniversityCanakkaleTurkey
| | - Kemal Melih Taşkin
- Department of Molecular Biology and GeneticsCanakkale Onsekiz Mart UniversityCanakkaleTurkey
| |
Collapse
|
7
|
Lucido A, Andrade F, Basallo O, Eleiwa A, Marin-Sanguino A, Vilaprinyo E, Sorribas A, Alves R. Modeling the effects of strigolactone levels on maize root system architecture. Front Plant Sci 2024; 14:1329556. [PMID: 38273953 PMCID: PMC10808495 DOI: 10.3389/fpls.2023.1329556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024]
Abstract
Maize is the most in-demand staple crop globally. Its production relies strongly on the use of fertilizers for the supply of nitrogen, phosphorus, and potassium, which the plant absorbs through its roots, together with water. The architecture of maize roots is determinant in modulating how the plant interacts with the microbiome and extracts nutrients and water from the soil. As such, attempts to use synthetic biology and modulate that architecture to make the plant more resilient to drought and parasitic plants are underway. These attempts often try to modulate the biosynthesis of hormones that determine root architecture and growth. Experiments are laborious and time-consuming, creating the need for simulation platforms that can integrate metabolic models and 3D root growth models and predict the effects of synthetic biology interventions on both, hormone levels and root system architectures. Here, we present an example of such a platform that is built using Mathematica. First, we develop a root model, and use it to simulate the growth of many unique 3D maize root system architectures (RSAs). Then, we couple this model to a metabolic model that simulates the biosynthesis of strigolactones, hormones that modulate root growth and development. The coupling allows us to simulate the effect of changing strigolactone levels on the architecture of the roots. We then integrate the two models in a simulation platform, where we also add the functionality to analyze the effect of strigolactone levels on root phenotype. Finally, using in silico experiments, we show that our models can reproduce both the phenotype of wild type maize, and the effect that varying strigolactone levels have on changing the architecture of maize roots.
Collapse
Affiliation(s)
- Abel Lucido
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Fabian Andrade
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Oriol Basallo
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Abderrahmane Eleiwa
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Alberto Marin-Sanguino
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Ester Vilaprinyo
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Albert Sorribas
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| | - Rui Alves
- Systems Biology Group, Department Ciències Mèdiques Bàsiques, Faculty of Medicine, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida (IRBLleida), Lleida, Spain
| |
Collapse
|
8
|
Park YJ, Nam BE, Park CM. Environmentally adaptive reshaping of plant photomorphogenesis by karrikin and strigolactone signaling. J Integr Plant Biol 2023. [PMID: 38116738 DOI: 10.1111/jipb.13602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 12/09/2023] [Accepted: 12/18/2023] [Indexed: 12/21/2023]
Abstract
Coordinated morphogenic adaptation of growing plants is critical for their survival and propagation under fluctuating environments. Plant morphogenic responses to light and warm temperatures, termed photomorphogenesis and thermomorphogenesis, respectively, have been extensively studied in recent decades. During photomorphogenesis, plants actively reshape their growth and developmental patterns to cope with changes in light regimes. Accordingly, photomorphogenesis is closely associated with diverse growth hormonal cues. Notably, accumulating evidence indicates that light-directed morphogenesis is profoundly affected by two recently identified phytochemicals, karrikins (KARs) and strigolactones (SLs). KARs and SLs are structurally related butenolides acting as signaling molecules during a variety of developmental steps, including seed germination. Their receptors and signaling mediators have been identified, and associated working mechanisms have been explored using gene-deficient mutants in various plant species. Of particular interest is that the KAR and SL signaling pathways play important roles in environmental responses, among which their linkages with photomorphogenesis are most comprehensively studied during seedling establishment. In this review, we focus on how the phytochemical and light signals converge on the optimization of morphogenic fitness. We also discuss molecular mechanisms underlying the signaling crosstalks with an aim of developing potential ways to improve crop productivity under climate changes.
Collapse
Affiliation(s)
- Young-Joon Park
- Department of Smart Farm Science, Kyung Hee University, Yongin, 17104, Korea
| | - Bo Eun Nam
- Department of Biological Sciences, Seoul National University, Seoul, 08826, Korea
| | - Chung-Mo Park
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea
| |
Collapse
|
9
|
Li K, Cheng Y, Fang C. OsDWARF10, transcriptionally repressed by OsSPL3, regulates the nutritional metabolism of polished rice. Front Plant Sci 2023; 14:1322463. [PMID: 38130489 PMCID: PMC10733476 DOI: 10.3389/fpls.2023.1322463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023]
Abstract
Strigolactone (SL) plays essential roles in plant development and the metabolism of rice leaves. However, the impact of SL on the accumulation of nutritional metabolites in polished rice, as well as the transcription factors directly involved in SL synthesis, remains elusive. In this study, we performed a metabolome analysis on polished rice samples from mutants of an SL biosynthetic gene, OsDWARF10 (OsD10). Compared with those in the wild type plants, primary and secondary metabolites exhibited a series of alterations in the d10 mutants. Notably, the d10 mutants showed a substantial increase in the amino acids and vitamins content. Through a yeast one-hybridization screening assay, we identified OsSPL3 as a transcription factor that binds to the OsD10 promoter, thereby inhibiting OsD10 transcription in vivo and in vitro. Furthermore, we conducted a metabolic profiling analysis in polished rice from plants that overexpressed OsSPL3 and observed enhanced levels of amino acids and vitamins. This study identified a novel transcriptional repressor of the SL biosynthetic gene and elucidated the regulatory roles of OsSPL3 and OsD10 on the accumulation of nutritional metabolites in polished rice.
Collapse
Affiliation(s)
- Kang Li
- Hainan Yazhou Bay Seed Laboratory, Scool of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, China
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Yan Cheng
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Chuanying Fang
- Hainan Yazhou Bay Seed Laboratory, Scool of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, China
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| |
Collapse
|
10
|
Su C, Kokosza A, Xie X, Pěnčík A, Zhang Y, Raumonen P, Shi X, Muranen S, Topcu MK, Immanen J, Hagqvist R, Safronov O, Alonso-Serra J, Eswaran G, Venegas MP, Ljung K, Ward S, Mähönen AP, Himanen K, Salojärvi J, Fernie AR, Novák O, Leyser O, Pałubicki W, Helariutta Y, Nieminen K. Tree architecture: A strigolactone-deficient mutant reveals a connection between branching order and auxin gradient along the tree stem. Proc Natl Acad Sci U S A 2023; 120:e2308587120. [PMID: 37991945 PMCID: PMC10691325 DOI: 10.1073/pnas.2308587120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 10/20/2023] [Indexed: 11/24/2023] Open
Abstract
Due to their long lifespan, trees and bushes develop higher order of branches in a perennial manner. In contrast to a tall tree, with a clearly defined main stem and branching order, a bush is shorter and has a less apparent main stem and branching pattern. To address the developmental basis of these two forms, we studied several naturally occurring architectural variants in silver birch (Betula pendula). Using a candidate gene approach, we identified a bushy kanttarelli variant with a loss-of-function mutation in the BpMAX1 gene required for strigolactone (SL) biosynthesis. While kanttarelli is shorter than the wild type (WT), it has the same number of primary branches, whereas the number of secondary branches is increased, contributing to its bush-like phenotype. To confirm that the identified mutation was responsible for the phenotype, we phenocopied kanttarelli in transgenic BpMAX1::RNAi birch lines. SL profiling confirmed that both kanttarelli and the transgenic lines produced very limited amounts of SL. Interestingly, the auxin (IAA) distribution along the main stem differed between WT and BpMAX1::RNAi. In the WT, the auxin concentration formed a gradient, being higher in the uppermost internodes and decreasing toward the basal part of the stem, whereas in the transgenic line, this gradient was not observed. Through modeling, we showed that the different IAA distribution patterns may result from the difference in the number of higher-order branches and plant height. Future studies will determine whether the IAA gradient itself regulates aspects of plant architecture.
Collapse
Affiliation(s)
- Chang Su
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki00014, Finland
| | - Andrzej Kokosza
- Mathematics and Computer Science, Adam Mickiewicz University, Poznań61-614, Poland
| | - Xiaonan Xie
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya321-8505, Japan
| | - Aleš Pěnčík
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, Faculty of Science of Palacký University, OlomoucCZ-78371, Czech Republic
| | - Youjun Zhang
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm14476, Germany
- Center of Plant Systems Biology and Biotechnology, 4000Plovdiv, Bulgaria
| | - Pasi Raumonen
- Mathematics, Tampere University, Tampere33720, Finland
| | - Xueping Shi
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan430070, China
| | - Sampo Muranen
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki00014, Finland
| | - Melis Kucukoglu Topcu
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki00014, Finland
| | - Juha Immanen
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Production Systems, Natural Resources Institute Finland (Luke), Helsinki00790, Finland
| | - Risto Hagqvist
- Production Systems, Natural Resources Institute Finland (Luke), Helsinki00790, Finland
| | - Omid Safronov
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Molecular and Integrative Biosciences Research Program, Faculty of Biological and Environmental Sciences, and Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
| | - Juan Alonso-Serra
- Laboratoire de Reproduction et Développement des Plantes, École Normale Supérieure de Lyon, Institut National de la Recherche Agronomique, Lyon69342, France
| | - Gugan Eswaran
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki00014, Finland
| | - Mirko Pavicic Venegas
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN37830
- National Plant Phenotyping Infrastructure, Helsinki Institute of Life Science, University of Helsinki, Biocenter Finland, Helsinki00014, Finland
| | - Karin Ljung
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 90183Umeå, Sweden
| | - Sally Ward
- Sainsbury Laboratory, University of Cambridge, CambridgeCB2 1LR, United Kingdom
| | - Ari Pekka Mähönen
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki00014, Finland
| | - Kristiina Himanen
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- National Plant Phenotyping Infrastructure, Helsinki Institute of Life Science, University of Helsinki, Biocenter Finland, Helsinki00014, Finland
| | - Jarkko Salojärvi
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- School of Biological Sciences, Nanyang Technological University, Singapore637551, Singapore
| | - Alisdair R. Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm14476, Germany
- Center of Plant Systems Biology and Biotechnology, 4000Plovdiv, Bulgaria
| | - Ondřej Novák
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, Faculty of Science of Palacký University, OlomoucCZ-78371, Czech Republic
- Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany of the Academy of Sciences of the Czech Republic, Olomouc78371, Czech Republic
| | - Ottoline Leyser
- Sainsbury Laboratory, University of Cambridge, CambridgeCB2 1LR, United Kingdom
| | - Wojtek Pałubicki
- Mathematics and Computer Science, Adam Mickiewicz University, Poznań61-614, Poland
| | - Ykä Helariutta
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki00014, Finland
- Sainsbury Laboratory, University of Cambridge, CambridgeCB2 1LR, United Kingdom
| | - Kaisa Nieminen
- Organismal and Evolutionary Biology Research Program, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki00014, Finland
- Production Systems, Natural Resources Institute Finland (Luke), Helsinki00790, Finland
| |
Collapse
|
11
|
Pyrzanowska-Banasiak A, Boyunegmez Tumer T, Bukowska B, Krokosz A. A multifaceted assessment of strigolactone GR24 and its derivatives: from anticancer and antidiabetic activities to antioxidant capacity and beyond. Front Mol Biosci 2023; 10:1242935. [PMID: 37954978 PMCID: PMC10639149 DOI: 10.3389/fmolb.2023.1242935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
Background: Strigolactones are signaling molecules produced by plants, the main functions are the intracorporeal control of plant development and plant growth. GR24 strigolactone is one of the synthetic strigolactones and due to its universality and easy availability, it is a standard and model compound for research on the properties and role of strigolactones in human health. Purpose: In this research work, the impact of mainly GR24 strigolactone on the human body and the role of this strigol-type lactone in many processes that take place within the human body are reviewed. Study design: The article is a review of publications on the use of GR24 strigolactone in studies from 2010-2023. Publications were searched using PubMed, Elsevier, Frontiers, and Springer databases. The Google Scholar search engine was also used. For the review original research papers and reviews related to the presented topic were selected. Results: The promising properties of GR24 and other strigolactone analogs in anti-cancer therapy are presented. Tumor development is associated with increased angiogenesis. Strigolactones have been shown to inhibit angiogenesis, which may enhance the anticancer effect of these γ-lactones. Furthermore, it has been shown that strigolactones have anti-inflammatory and antioxidant properties. There are also a few reports which show that the strigolactone analog may have antimicrobial and antiviral activity against human pathogens. Conclusion: When all of this is considered, strigolactones are molecules whose versatile action is their undeniable advantage. The development of research on these phytohormones makes it possible to discover their new, unique properties and surprising biological activities in relation to many mammalian cells.
Collapse
Affiliation(s)
- Agata Pyrzanowska-Banasiak
- Department of Biophysics of Environmental Pollution, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Tugba Boyunegmez Tumer
- Department of Molecular Biology and Genetics, Faculty of Arts and Science, Canakkale Onsekiz Mart University, Canakkale, Türkiye
| | - Bożena Bukowska
- Department of Biophysics of Environmental Pollution, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Anita Krokosz
- Department of Biophysics of Environmental Pollution, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| |
Collapse
|
12
|
Song M, Hu N, Zhou S, Xie S, Yang J, Ma W, Teng Z, Liang W, Wang C, Bu M, Zhang S, Yang X, He D. Physiological and RNA-Seq Analyses on Exogenous Strigolactones Alleviating Drought by Improving Antioxidation and Photosynthesis in Wheat ( Triticum aestivum L.). Antioxidants (Basel) 2023; 12:1884. [PMID: 37891963 PMCID: PMC10604895 DOI: 10.3390/antiox12101884] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Drought poses a significant challenge to global wheat production, and the application of exogenous phytohormones offers a convenient approach to enhancing drought tolerance of wheat. However, little is known about the molecular mechanism by which strigolactones (SLs), newly discovered phytohormones, alleviate drought stress in wheat. Therefore, this study is aimed at elucidating the physiological and molecular mechanisms operating in wheat and gaining insights into the specific role of SLs in ameliorating responses to the stress. The results showed that SLs application upregulated the expression of genes associated with the antioxidant defense system (Fe/Mn-SOD, PER1, PER22, SPC4, CAT2, APX1, APX7, GSTU6, GST4, GOR, GRXC1, and GRXC15), chlorophyll biogenesis (CHLH, and CPX), light-harvesting chlorophyll A-B binding proteins (WHAB1.6, and LHC Ib-21), electron transfer (PNSL2), E3 ubiquitin-protein ligase (BB, CHIP, and RHY1A), heat stress transcription factor (HSFA1, HSFA4D, and HSFC2B), heat shock proteins (HSP23.2, HSP16.9A, HSP17.9A, HSP21, HSP70, HSP70-16, HSP70-17, HSP70-8, HSP90-5, and HSP90-6), DnaJ family members (ATJ1, ATJ3, and DJA6), as well as other chaperones (BAG1, CIP73, CIPB1, and CPN60I). but the expression level of genes involved in chlorophyll degradation (SGR, NOL, PPH, PAO, TIC55, and PTC52) as well as photorespiration (AGT2) was found to be downregulated by SLs priming. As a result, the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were enhanced, and chlorophyll content and photosynthetic rate were increased, which indicated the alleviation of drought stress in wheat. These findings demonstrated that SLs alleviate drought stress by promoting photosynthesis through enhancing chlorophyll levels, and by facilitating ROS scavenging through modulation of the antioxidant system. The study advances understandings of the molecular mechanism underlying SLs-mediated drought alleviation and provides valuable insights for implementing sustainable farming practice under water restriction.
Collapse
Affiliation(s)
- Miao Song
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou 450046, China
| | - Naiyue Hu
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Sumei Zhou
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou 450046, China
| | - Songxin Xie
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Jian Yang
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Wenqi Ma
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Zhengkai Teng
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Wenxian Liang
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Chunyan Wang
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Mingna Bu
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Shuo Zhang
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
| | - Xiwen Yang
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou 450046, China
| | - Dexian He
- College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (M.S.); (N.H.); (S.Z.); (S.X.); (J.Y.); (W.M.); (Z.T.); (W.L.); (C.W.); (M.B.); (S.Z.)
- Co-Construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China
- Collaborative Innovation Center of Henan Grain Crops, Zhengzhou 450046, China
| |
Collapse
|
13
|
Chen GTE, Wang JY, Votta C, Braguy J, Jamil M, Kirschner GK, Fiorilli V, Berqdar L, Balakrishna A, Blilou I, Lanfranco L, Al-Babili S. Disruption of the rice 4-DEOXYOROBANCHOL HYDROXYLASE unravels specific functions of canonical strigolactones. Proc Natl Acad Sci U S A 2023; 120:e2306263120. [PMID: 37819983 PMCID: PMC10589652 DOI: 10.1073/pnas.2306263120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 09/11/2023] [Indexed: 10/13/2023] Open
Abstract
Strigolactones (SLs) regulate many developmental processes, including shoot-branching/tillering, and mediate rhizospheric interactions. SLs originate from carlactone (CL) and are structurally diverse, divided into a canonical and a noncanonical subfamily. Rice contains two canonical SLs, 4-deoxyorobanchol (4DO) and orobanchol (Oro), which are common in different plant species. The cytochrome P450 OsMAX1-900 forms 4DO from CL through repeated oxygenation and ring closure, while the homologous enzyme OsMAX1-1400 hydroxylates 4DO into Oro. To better understand the biological function of 4DO and Oro, we generated CRISPR/Cas9 mutants disrupted in OsMAX1-1400 or in both OsMAX1-900 and OsMAX1-1400. The loss of OsMAX1-1400 activity led to a complete lack of Oro and an accumulation of its precursor 4DO. Moreover, Os1400 mutants showed shorter plant height, panicle and panicle base length, but no tillering phenotype. Hormone quantification and transcriptome analysis of Os1400 mutants revealed elevated auxin levels and changes in the expression of auxin-related, as well as of SL biosynthetic genes. Interestingly, the Os900/1400 double mutant lacking both Oro and 4DO did not show the observed Os1400 architectural phenotypes, indicating their being a result of 4DO accumulation. Treatment of wild-type plants with 4DO confirmed this assumption. A comparison of the Striga seed germinating activity and the mycorrhization of Os900, Os900/1400, and Os1400 loss-of-function mutants demonstrated that the germination activity positively correlates with 4DO content while disrupting OsMAX1-1400 has a negative impact on mycorrhizal symbiosis. Taken together, our paper deciphers the biological function of canonical SLs in rice and reveals their particular contributions to establishing architecture and rhizospheric communications.
Collapse
Affiliation(s)
- Guan-Ting Erica Chen
- The BioActives Lab, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
- The Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Jian You Wang
- The BioActives Lab, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Cristina Votta
- Department of Life Sciences and Systems Biology, University of Torino, Torino10125, Italy
| | - Justine Braguy
- The BioActives Lab, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Muhammad Jamil
- The BioActives Lab, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Gwendolyn K. Kirschner
- Biological and Environmental Science and Engineering (BESE) Division, Plant Cell and Developmental Biology, King Abdullah University of Science and Technology, Thuwal23955-6900, Saudi Arabia
| | - Valentina Fiorilli
- Department of Life Sciences and Systems Biology, University of Torino, Torino10125, Italy
| | - Lamis Berqdar
- The BioActives Lab, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Aparna Balakrishna
- The BioActives Lab, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Ikram Blilou
- The Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
- Biological and Environmental Science and Engineering (BESE) Division, Plant Cell and Developmental Biology, King Abdullah University of Science and Technology, Thuwal23955-6900, Saudi Arabia
| | - Luisa Lanfranco
- Department of Life Sciences and Systems Biology, University of Torino, Torino10125, Italy
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
- The Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955-6900, Kingdom of Saudi Arabia
| |
Collapse
|
14
|
Van Dingenen J, De Keyser A, Desmet S, Clarysse A, Beullens S, Michiels J, Planque M, Goormachtig S. Strigolactones repress nodule development and senescence in pea. Plant J 2023; 116:7-22. [PMID: 37608631 DOI: 10.1111/tpj.16421] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/21/2023] [Accepted: 08/02/2023] [Indexed: 08/24/2023]
Abstract
Strigolactones are a class of phytohormones that are involved in many different plant developmental processes, including the rhizobium-legume nodule symbiosis. Although both positive and negative effects of strigolactones on the number of nodules have been reported, the influence of strigolactones on nodule development is still unknown. Here, by means of the ramosus (rms) mutants of Pisum sativum (pea) cv Terese, we investigated the impact of strigolactone biosynthesis (rms1 and rms5) and signaling (rms3 and rms4) mutants on nodule growth. The rms mutants had more red, that is, functional, and larger nodules than the wild-type plants. Additionally, the increased nitrogen fixation and senescence zones with consequently reduced meristematic and infection zones indicated that the rms nodules developed faster than the wild-type nodules. An enhanced expression of the nodule zone-specific molecular markers for meristem activity and senescence supported the enlarged, fast maturing nodules. Interestingly, the master nodulation regulator, NODULE INCEPTION, NIN, was strongly induced in nodules of all rms mutants but not prior to inoculation. Determination of sugar levels with both bulk and spatial metabolomics in roots and nodules, respectively, hints at slightly increased malic acid levels early during nodule primordia formation and reduced sugar levels at later stages, possibly the consequence of an increased carbon usage of the enlarged nodules, contributing to the enhanced senescence. Taken together, these results suggest that strigolactones regulate the development of nodules, which is probably mediated through NIN, and available plant sugars.
Collapse
Affiliation(s)
- Judith Van Dingenen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Annick De Keyser
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Sandrien Desmet
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
- VIB Metabolomics Core, VIB, Technologiepark 71, 9052, Ghent, Belgium
| | - Alexander Clarysse
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Serge Beullens
- Centre of Microbial and Plant Genetics, KU Leuven, Leuven, Belgium
- Center for Microbiology, VIB, Leuven, Belgium
| | - Jan Michiels
- Centre of Microbial and Plant Genetics, KU Leuven, Leuven, Belgium
- Center for Microbiology, VIB, Leuven, Belgium
| | - Mélanie Planque
- Spatial Metabolomics Expertise Center, VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Sofie Goormachtig
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| |
Collapse
|
15
|
Russo G, Capitanio S, Trasoletti M, Morabito C, Korwin Krukowski P, Visentin I, Genre A, Schubert A, Cardinale F. Strigolactones promote the localization of the ABA exporter ABCG25 at the plasma membrane in root epidermal cells of Arabidopsis thaliana. J Exp Bot 2023; 74:5881-5895. [PMID: 37519212 DOI: 10.1093/jxb/erad298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/29/2023] [Indexed: 08/01/2023]
Abstract
The phytohormones strigolactones crosstalk with abscisic acid (ABA) in acclimation to osmotic stress, as ascertained in leaves. However, our knowledge about underground tissues is limited, and lacking in Arabidopsis: whether strigolactones affect ABA transport across plasma membranes has never been addressed. We evaluated the effect of strigolactones on the localization of ATP BINDING CASSETTE G25 (ABCG25), an ABA exporter in Arabidopsis thaliana. Wild-type, strigolactone-insensitive, and strigolactone-depleted seedlings expressing a green fluorescent protein:ABCG25 construct were treated with ABA or strigolactones, and green fluorescent protein was quantified by confocal microscopy in different subcellular compartments of epidermal root cells. We show that strigolactones promote the localization of an ABA transporter at the plasma membrane by enhancing its endosomal recycling. Genotypes altered in strigolactone synthesis or perception are not impaired in ABCG25 recycling promotion by ABA, which acts downstream or independent of strigolactones in this respect. Additionally, we confirm that osmotic stress decreases strigolactone synthesis in A. thaliana root cells, and that this decrease may support local ABA retention under low water availability by allowing ABCG25 internalization. Thus, we propose a new mechanism for ABA homeostasis regulation in the context of osmotic stress acclimation: the fine-tuning by strigolactones of ABCG25 localization in root cells.
Collapse
Affiliation(s)
- Giulia Russo
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Serena Capitanio
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
- DBIOS, University of Turin, Viale Mattioli 25, I-10125 Torino, Italy
| | - Marta Trasoletti
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Cristina Morabito
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Paolo Korwin Krukowski
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Ivan Visentin
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Andrea Genre
- DBIOS, University of Turin, Viale Mattioli 25, I-10125 Torino, Italy
| | - Andrea Schubert
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Francesca Cardinale
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| |
Collapse
|
16
|
Vogel D, Hills P, Moore JP. Strigolactones GR-24 and Nijmegen Applications Result in Reduced Susceptibility of Tobacco and Grapevine Plantlets to Botrytis cinerea Infection. Plants (Basel) 2023; 12:3202. [PMID: 37765366 PMCID: PMC10535315 DOI: 10.3390/plants12183202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/03/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
Priming agents are plant defence-inducing compounds which can prompt a state of protection but may also aid in plant growth and interactions with beneficial microbes. The synthetic strigolactones (±)-GR24 and Nijmegen-1 were evaluated as potential priming agents for induced resistance against Botrytis cinerea in tobacco and grapevine plants. The growth and stress response profiles of B. cinerea to strigolactones were also investigated. Soil drench treatment with strigolactones induced resistance in greenhouse-grown tobacco plants and restricted lesion development. The mode of action appeared to function by priming redox-associated compounds to produce an anti-oxidant protective response for limiting the infection. The results obtained in the in vitro assays mirrored that of the greenhouse-grown plants. Exposure of B. cinerea to the strigolactones resulted in increased hyphal branching, with (±)-GR24 stimulating a stronger effect than Nijmegen-1 by affecting colony diameter and radial growth. An oxidative stress response was observed, with B. cinerea exhibiting increased ROS and SOD levels when grown with strigolactones. This study identified the application of strigolactones as potential priming agents to induce disease resistance in both tobacco and grapevine plants. In addition, strigolactones may alter the ROS homeostasis of B. cinerea, resulting in both morphological and physiological changes, thereby reducing virulence.
Collapse
Affiliation(s)
- Dominic Vogel
- South African Grape and Wine Research Institute, Department of Viticulture and Oenology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Paul Hills
- Institute for Plant Biotechnology, Department of Genetics, Faculty of AgriSciences, Stellenbosch University, Stellenbosch 7602, South Africa
| | - John P Moore
- South African Grape and Wine Research Institute, Department of Viticulture and Oenology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch 7600, South Africa
| |
Collapse
|
17
|
Ezquerro M, Li C, Pérez-Pérez J, Burbano-Erazo E, Barja MV, Wang Y, Dong L, Lisón P, López-Gresa MP, Bouwmeester HJ, Rodríguez-Concepción M. Tomato geranylgeranyl diphosphate synthase isoform 1 is involved in the stress-triggered production of diterpenes in leaves and strigolactones in roots. New Phytol 2023; 239:2292-2306. [PMID: 37381102 DOI: 10.1111/nph.19109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 06/05/2023] [Indexed: 06/30/2023]
Abstract
Carotenoids are photoprotectant pigments and precursors of hormones such as strigolactones (SL). Carotenoids are produced in plastids from geranylgeranyl diphosphate (GGPP), which is diverted to the carotenoid pathway by phytoene synthase (PSY). In tomato (Solanum lycopersicum), three genes encode plastid-targeted GGPP synthases (SlG1 to SlG3) and three genes encode PSY isoforms (PSY1 to PSY3). Here, we investigated the function of SlG1 by generating loss-of-function lines and combining their metabolic and physiological phenotyping with gene co-expression and co-immunoprecipitation analyses. Leaves and fruits of slg1 lines showed a wild-type phenotype in terms of carotenoid accumulation, photosynthesis, and development under normal growth conditions. In response to bacterial infection, however, slg1 leaves produced lower levels of defensive GGPP-derived diterpenoids. In roots, SlG1 was co-expressed with PSY3 and other genes involved in SL production, and slg1 lines grown under phosphate starvation exuded less SLs. However, slg1 plants did not display the branched shoot phenotype observed in other SL-defective mutants. At the protein level, SlG1 physically interacted with the root-specific PSY3 isoform but not with PSY1 and PSY2. Our results confirm specific roles for SlG1 in producing GGPP for defensive diterpenoids in leaves and carotenoid-derived SLs (in combination with PSY3) in roots.
Collapse
Affiliation(s)
- Miguel Ezquerro
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, Barcelona, 08193, Spain
| | - Changsheng Li
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
| | - Julia Pérez-Pérez
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - Esteban Burbano-Erazo
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - M Victoria Barja
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, Barcelona, 08193, Spain
| | - Yanting Wang
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
| | - Lemeng Dong
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
| | - Purificación Lisón
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - M Pilar López-Gresa
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - Harro J Bouwmeester
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
| | - Manuel Rodríguez-Concepción
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| |
Collapse
|
18
|
Kang Z, Yan Y, Lu R, Dong X, Xu J, Zheng D, Li S, Gao Q, Liu S. Synthesis and Biological Profiling of Novel Strigolactone Derivatives for Arabidopsis Growth and Development. J Agric Food Chem 2023; 71:12859-12874. [PMID: 37602432 DOI: 10.1021/acs.jafc.3c02135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
The artificially synthesized strigolactone (SL) analogue GR24 is currently the most widely used reference compound in studying the biological functions of SLs. To elucidate the structure-activity relationship and find more promising derivatives with unique molecular profiles, we design and synthesized three series of novel GR24 derivatives and explored their activities in hypocotyl and root development of Arabidopsis. Among the 50 synthesized compounds, A11a, A12a, and A20d were found to have high activities comparable to GR24 for hypocotyl and/or primary root elongation inhibition in Arabidopsis. Some new analogues have been discovered to exhibit unique activities: (1) A20c, A21e, and A21o are specific inhibitors in primary root elongation; (2) A21c, A26c, and A27a exhibit a high promotion effect on Arabidopsis primary root elongation; and (3) A27e possesses the most unique profiles completely opposite to GR24 that promotes both hypocotyl elongation and primary root development. Moreover, we revealed that the AtD14 receptor does not affect the inhibitory effect of SL analogues in Arabidopsis root development. The ligand-receptor interactions for the most representative analogues A11a and A27e were deciphered with a long time scale molecular dynamics simulation study, which provides the molecular basis of their distinct functions, and may help scientists design novel phytohormones.
Collapse
Affiliation(s)
- Zhaoyong Kang
- School of Pharmaceutical Science and Technology, Institute of Molecular Plus, Frontiers Science Center for Synthetic Biology (Ministry of Education of China), Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| | - Yujie Yan
- School of Pharmaceutical Science and Technology, Institute of Molecular Plus, Frontiers Science Center for Synthetic Biology (Ministry of Education of China), Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| | - Ruirui Lu
- Shenzhen Key Laboratory of Agricultural Synthetic Biology, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, P. R. China
| | - Xiaoqi Dong
- School of Pharmaceutical Science and Technology, Institute of Molecular Plus, Frontiers Science Center for Synthetic Biology (Ministry of Education of China), Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| | - Jun Xu
- School of Pharmaceutical Science and Technology, Institute of Molecular Plus, Frontiers Science Center for Synthetic Biology (Ministry of Education of China), Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| | - Dong Zheng
- Shenzhen Key Laboratory of Agricultural Synthetic Biology, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, P. R. China
| | - Suhua Li
- Shenzhen Key Laboratory of Agricultural Synthetic Biology, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, P. R. China
| | - Qingzhi Gao
- School of Pharmaceutical Science and Technology, Institute of Molecular Plus, Frontiers Science Center for Synthetic Biology (Ministry of Education of China), Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
- Department of Biology, Gudui BioPharma Technology Inc., 5 Lanyuan Road, Huayuan Industrial Park, Tianjin 300384, P. R. China
| | - Shengnan Liu
- School of Pharmaceutical Science and Technology, Institute of Molecular Plus, Frontiers Science Center for Synthetic Biology (Ministry of Education of China), Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| |
Collapse
|
19
|
Kameoka H, Shimazaki S, Mashiguchi K, Watanabe B, Komatsu A, Yoda A, Mizuno Y, Kodama K, Okamoto M, Nomura T, Yamaguchi S, Kyozuka J. DIENELACTONE HYDROLASE LIKE PROTEIN1 negatively regulates the KAI2-ligand pathway in Marchantia polymorpha. Curr Biol 2023; 33:3505-3513.e5. [PMID: 37480853 DOI: 10.1016/j.cub.2023.06.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/25/2023] [Accepted: 06/29/2023] [Indexed: 07/24/2023]
Abstract
Karrikins are smoke-derived butenolides that induce seed germination and photomorphogenesis in a wide range of plants.1,2,3 KARRIKIN INSENSITIVE2 (KAI2), a paralog of a strigolactone receptor, perceives karrikins or their metabolized products in Arabidopsis thaliana.4,5,6,7 Furthermore, KAI2 is thought to perceive an unidentified plant hormone, called KAI2 ligand (KL).8,9 KL signal is transduced via the interaction between KAI2, MORE AXILLARY GROWTH2 (MAX2), and SUPPRESSOR of MORE AXILLARY GROWTH2 1 LIKE family proteins (SMXLs), followed by the degradation of SMXLs.4,7,10,11,12,13,14 This signaling pathway is conserved both in A. thaliana and the bryophyte Marchantia polymorpha.14 Although the KL signaling pathway is well characterized, the KL metabolism pathways remain poorly understood. Here, we show that DIENELACTONE HYDROLASE LIKE PROTEIN1 (DLP1) is a negative regulator of the KL pathway in M. polymorpha. The KL signal induces DLP1 expression. DLP1 overexpression lines phenocopied the Mpkai2a and Mpmax2 mutants, while dlp1 mutants phenocopied the Mpsmxl mutants. Mutations in the KL signaling genes largely suppressed these phenotypes, indicating that DLP1 acts upstream of the KL signaling pathway, although DLP1 also has KL pathway-independent functions. DLP1 exhibited enzymatic activity toward a potential substrate, suggesting the possibility that DLP1 works through KL inactivation. Investigation of DLP1 homologs in A. thaliana revealed that they do not play a major role in the KL pathway, suggesting different mechanisms for the KL signal regulation. Our findings provide new insights into the regulation of the KL signal in M. polymorpha and the evolution of the KL pathway in land plants.
Collapse
Affiliation(s)
- Hiromu Kameoka
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan; PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan.
| | - Shota Shimazaki
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Kiyoshi Mashiguchi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Bunta Watanabe
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Aino Komatsu
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Akiyoshi Yoda
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya, Tochigi 321-8505, Japan
| | - Yohei Mizuno
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Kyoichi Kodama
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Masanori Okamoto
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya, Tochigi 321-8505, Japan; RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
| | - Takahito Nomura
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya, Tochigi 321-8505, Japan
| | - Shinjiro Yamaguchi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Junko Kyozuka
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan.
| |
Collapse
|
20
|
Seo PJ, Lee HG, Choi HY, Lee S, Park CM. Complexity of SMAX1 signaling during seedling establishment. Trends Plant Sci 2023; 28:902-912. [PMID: 37069002 DOI: 10.1016/j.tplants.2023.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 03/12/2023] [Accepted: 03/18/2023] [Indexed: 06/19/2023]
Abstract
Karrikins (KARs) are small butenolide compounds identified in the smoke of burning vegetation. Along with the stimulating effects on seed germination, KARs also regulate seedling vigor and adaptive behaviors, such as seedling morphogenesis, root hair development, and stress acclimation. The pivotal KAR signaling repressor, SUPPRESSOR OF MAX2 1 (SMAX1), plays central roles in these developmental and morphogenic processes through an extensive signaling network that governs seedling responses to endogenous and environmental cues. Here, we summarize the versatile roles of SMAX1 reported in recent years and discuss how SMAX1 integrates multiple growth hormone signals into optimizing seedling establishment. We also discuss the evolutionary relevance of the SMAX1-mediated signaling pathways during the colonization of aqueous plants to terrestrial environments.
Collapse
Affiliation(s)
- Pil Joon Seo
- Department of Chemistry, Seoul National University, Seoul 08826, Korea; Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Korea.
| | - Hong Gil Lee
- Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Korea
| | - Hye-Young Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Sangmin Lee
- Bio/Energy R&D Center, Korea Institute of Energy Research, Gwangju 61003, Korea
| | - Chung-Mo Park
- Department of Chemistry, Seoul National University, Seoul 08826, Korea; Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Korea.
| |
Collapse
|
21
|
Jamil M, Lin PY, Berqdar L, Wang JY, Takahashi I, Ota T, Alhammad N, Chen GTE, Asami T, Al-Babili S. New Series of Zaxinone Mimics (MiZax) for Fundamental and Applied Research. Biomolecules 2023; 13:1206. [PMID: 37627271 PMCID: PMC10452442 DOI: 10.3390/biom13081206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023] Open
Abstract
The apocarotenoid zaxinone is a recently discovered regulatory metabolite required for proper rice growth and development. In addition, zaxinone and its two mimics (MiZax3 and MiZax5) were shown to have a remarkable growth-promoting activity on crops and a capability to reduce infestation by the root parasitic plant Striga through decreasing strigolactone (SL) production, suggesting their potential for application in agriculture and horticulture. In the present study, we developed a new series of MiZax via structural modification of the two potent zaxinone mimics (MiZax3 and MiZax5) and evaluated their effect on plant growth and Striga infestation. In general, the structural modifications to MiZax3 and MiZax5 did not additionally improve their overall performance but caused an increase in certain activities. In conclusion, MiZax5 and especially MiZax3 remain the likely most efficient zaxinone mimics for controlling Striga infestation.
Collapse
Affiliation(s)
- Muhammad Jamil
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.J.); (P.-Y.L.); (L.B.); (J.Y.W.); (N.A.); (G.-T.E.C.)
| | - Pei-Yu Lin
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.J.); (P.-Y.L.); (L.B.); (J.Y.W.); (N.A.); (G.-T.E.C.)
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Lamis Berqdar
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.J.); (P.-Y.L.); (L.B.); (J.Y.W.); (N.A.); (G.-T.E.C.)
| | - Jian You Wang
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.J.); (P.-Y.L.); (L.B.); (J.Y.W.); (N.A.); (G.-T.E.C.)
| | - Ikuo Takahashi
- Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan; (I.T.); (T.O.); (T.A.)
| | - Tsuyoshi Ota
- Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan; (I.T.); (T.O.); (T.A.)
| | - Noor Alhammad
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.J.); (P.-Y.L.); (L.B.); (J.Y.W.); (N.A.); (G.-T.E.C.)
| | - Guan-Ting Erica Chen
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.J.); (P.-Y.L.); (L.B.); (J.Y.W.); (N.A.); (G.-T.E.C.)
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Tadao Asami
- Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan; (I.T.); (T.O.); (T.A.)
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.J.); (P.-Y.L.); (L.B.); (J.Y.W.); (N.A.); (G.-T.E.C.)
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|
22
|
Bajguz A, Piotrowska-Niczyporuk A. Biosynthetic Pathways of Hormones in Plants. Metabolites 2023; 13:884. [PMID: 37623827 PMCID: PMC10456939 DOI: 10.3390/metabo13080884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023] Open
Abstract
Phytohormones exhibit a wide range of chemical structures, though they primarily originate from three key metabolic precursors: amino acids, isoprenoids, and lipids. Specific amino acids, such as tryptophan, methionine, phenylalanine, and arginine, contribute to the production of various phytohormones, including auxins, melatonin, ethylene, salicylic acid, and polyamines. Isoprenoids are the foundation of five phytohormone categories: cytokinins, brassinosteroids, gibberellins, abscisic acid, and strigolactones. Furthermore, lipids, i.e., α-linolenic acid, function as a precursor for jasmonic acid. The biosynthesis routes of these different plant hormones are intricately complex. Understanding of these processes can greatly enhance our knowledge of how these hormones regulate plant growth, development, and physiology. This review focuses on detailing the biosynthetic pathways of phytohormones.
Collapse
Affiliation(s)
- Andrzej Bajguz
- Department of Biology and Plant Ecology, Faculty of Biology, University of Bialystok, Ciolkowskiego 1J, 15-245 Bialystok, Poland;
| | | |
Collapse
|
23
|
Biolatti M, Blangetti M, Baggieri M, Marchi A, Gioacchini S, Bajetto G, Arnodo D, Bucci P, Fioravanti R, Kojouri M, Bersani M, D'Arrigo G, Siragusa L, Ghinato S, De Andrea M, Gugliesi F, Albano C, Pasquero S, Visentin I, D'Ugo E, Esposito F, Malune P, Tramontano E, Prandi C, Spyrakis F, Magurano F, Dell'Oste V. Strigolactones as Broad-Spectrum Antivirals against β-Coronaviruses through Targeting the Main Protease M pro. ACS Infect Dis 2023; 9:1310-1318. [PMID: 37358826 DOI: 10.1021/acsinfecdis.3c00219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
The current SARS-CoV-2 pandemic and the likelihood that new coronavirus strains will emerge in the immediate future point out the urgent need to identify new pan-coronavirus inhibitors. Strigolactones (SLs) are a class of plant hormones with multifaceted activities whose roles in plant-related fields have been extensively explored. Recently, we proved that SLs also exert antiviral activity toward herpesviruses, such as human cytomegalovirus (HCMV). Here we show that the synthetic SLs TH-EGO and EDOT-EGO impair β-coronavirus replication including SARS-CoV-2 and the common cold human coronavirus HCoV-OC43. Interestingly, in silico simulations suggest the binding of SLs in the SARS-CoV-2 main protease (Mpro) active site, and this was further confirmed by an in vitro activity assay. Overall, our results highlight the potential efficacy of SLs as broad-spectrum antivirals against β-coronaviruses, which may provide the rationale for repurposing this class of hormones for the treatment of COVID-19 patients.
Collapse
Affiliation(s)
- Matteo Biolatti
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy
| | - Marco Blangetti
- Department of Chemistry, University of Turin, 10125 Turin, Italy
| | - Melissa Baggieri
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Antonella Marchi
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Silvia Gioacchini
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Greta Bajetto
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy
- Center for Translational Research on Autoimmune and Allergic Disease-CAAD, 28100 Novara, Italy
| | - Davide Arnodo
- Department of Chemistry, University of Turin, 10125 Turin, Italy
| | - Paola Bucci
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Raoul Fioravanti
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Maedeh Kojouri
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Matteo Bersani
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy
| | - Giulia D'Arrigo
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy
| | - Lydia Siragusa
- Molecular Discovery Ltd., Kinetic Business Centre, Elstree, Borehamwood, WD6 4PJ Hertfordshire, United Kingdom
- Molecular Horizon s.r.l., 06084 Bettona (PG), Italy
| | - Simone Ghinato
- Department of Chemistry, University of Turin, 10125 Turin, Italy
| | - Marco De Andrea
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy
- Center for Translational Research on Autoimmune and Allergic Disease-CAAD, 28100 Novara, Italy
| | - Francesca Gugliesi
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy
| | - Camilla Albano
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy
| | - Selina Pasquero
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy
| | - Ivan Visentin
- Department of Agricultural, Forestry, and Food Sciences, University of Turin, 10095 Grugliasco, Turin, Italy
| | - Emilio D'Ugo
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Francesca Esposito
- Department of Life and Environmental Sciences, University of Cagliari, 09042 Monserrato, Cagliari, Italy
| | - Paolo Malune
- Department of Life and Environmental Sciences, University of Cagliari, 09042 Monserrato, Cagliari, Italy
| | - Enzo Tramontano
- Department of Life and Environmental Sciences, University of Cagliari, 09042 Monserrato, Cagliari, Italy
| | - Cristina Prandi
- Department of Chemistry, University of Turin, 10125 Turin, Italy
| | - Francesca Spyrakis
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy
| | - Fabio Magurano
- Department of Infectious Diseases, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Valentina Dell'Oste
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy
| |
Collapse
|
24
|
Sharifi R, Chen J, Sun Z, Chen J. Conferring resistance to parasitic witchweed by shifting strigolactone biosynthesis. Trends Parasitol 2023; 39:496-498. [PMID: 37173197 DOI: 10.1016/j.pt.2023.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
Strigolactones from the exudates of maize root induce germination of the parasitic witchweed Striga. Recently, Li et al. characterized the biosynthesis pathway of two strigolactones, zealactol and zealactonoic acid, which induce less Striga germination than the major maize strigolactone, zealactone. This study provides a promising strategy for plant protection against parasitic witchweed.
Collapse
Affiliation(s)
- Rouhallah Sharifi
- Department of Plant Protection, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
| | - Jianping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Zongtao Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, China.
| | - Jian Chen
- International Genome Center, Jiangsu University, Zhenjiang 212013, China.
| |
Collapse
|
25
|
Li J, Fan M, Zhang Q, Lü G, Wu X, Gong B, Wang Y, Zhang Y, Gao H. Transcriptome analysis reveals that auxin promotes strigolactone-induced adventitious root growth in the hypocotyl of melon seedlings. Front Plant Sci 2023; 14:1192340. [PMID: 37377810 PMCID: PMC10292653 DOI: 10.3389/fpls.2023.1192340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/10/2023] [Indexed: 06/29/2023]
Abstract
Introduction Strigolactone (SL) and auxin are two important phytohormones involved in plant root development, but whether they show synergistic or mutual promotion effects during adventitious root (AR) formation has not been adequately explored. Methods In this study, we investigated the mechanisms of GR24 (synthetic SL) and indole-3-acetic acid (IAA; a type of auxin) in the formation of ARs using melon as the study material. Results Morphological measurements showed that the AR number, length, superficial area, and volume under the GR24 treatment were 1.60-3.27, 1.58-3.99, 2.06-3.42, and 3.00-6.11 times greater than those of the control group, respectively, at 6-10 days; the GR24+IAA treatment further promoted AR formation in melon seedlings, and the AR number, length, superficial area, and volume under the GR24+IAA treatment were 1.44-1.51, 1.28-1.73, 1.19-1.83, and 1.31-1.87 times greater than those obtained with the GR24 treatment, respectively. Transcriptome analysis revealed 2,742, 3,352, and 2,321 differentially expressed genes (DEGs) identified from the GR24 vs. control, GR24+IAA vs. control, and GR24+IAA vs. GR24 comparisons, respectively. The GR24 treatment and GR24+IAA treatment affected auxin and SL synthesis as well as components of the phytohormone signal transduction pathway, such as auxin, brassinosteroid (BR), ethylene (ETH), cytokinin (CK), gibberellin (GA), and abscisic acid (ABA). The concentrations of auxin, GA, zeatin (ZT), and ABA were evaluated using high-performance liquid chromatography (HPLC). From 6 to 10 days, the auxin, GA, and ZT contents in the GR24 treatment group were increased by 11.48%-15.34%, 11.83%-19.50%, and 22.52%-66.17%, respectively, compared to the control group, and these features were increased by 22.00%-31.20%, 21.29%-25.75%, 51.76%-98.96%, respectively, in the GR24+IAA treatment group compared with the control group. Compared to that in the control, the ABA content decreased by 10.30%-11.83% in the GR24 treatment group and decreased by 18.78%-24.00% in the GR24+IAA treatment group at 6-10 days. Discussion Our study revealed an interaction between strigolactone and auxin in the induction of AR formation in melon seedlings by affecting the expression of genes related to plant hormone pathways and contents.
Collapse
Affiliation(s)
- Jingrui Li
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Mi Fan
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Qinqin Zhang
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Guiyun Lü
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Xiaolei Wu
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Binbin Gong
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Yubo Wang
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Ying Zhang
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| | - Hongbo Gao
- College of Horticulture, Hebei Agricultural University, Baoding, China
- Collaborative Innovation Center of Vegetable Industry in Hebei, Baoding, China
- Hebei Key Laboratory of Vegetable Germplasm Innovation and Utilization, Baoding, China
| |
Collapse
|
26
|
Wang C, Guo B, Yang Z, Du L, Yu C, Zhou Y, Zhao H, Wang Y, Duan L. Discovery of Novel Hybrid-Type Strigolactone Mimics Derived from Cinnamic Amide. Int J Mol Sci 2023; 24:9967. [PMID: 37373113 DOI: 10.3390/ijms24129967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/01/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Strigolactones (SLs) are a class of plant hormones and rhizosphere communication signals of great interest. They perform diverse biological functions including the stimulation of parasitic seed germination and phytohormonal activity. However, their practical use is limited by their low abundance and complex structure, which requires simpler SL analogues and mimics with maintained biological function. Here, new, hybrid-type SL mimics were designed, derived from Cinnamic amide, a new potential plant growth regulator with good germination and rooting-promoting activities. Bioassay results indicated that compound 6 not only displayed good germination activity against the parasitic weed O. aegyptiaca with an EC50 value of 2.36 × 10-8 M, but also exhibited significant inhibitory activity against Arabidopsis root growth and lateral root formation, as well as promoting root hair elongation, similar to the action of GR24. Further morphological experiments on Arabidopsis max2-1 mutants revealed that 6 possessed SL-like physiological functions. Furthermore, molecular docking studies indicated that the binding mode of 6 was similar to that of GR24 in the active site of OsD14. This work provides valuable clues for the discovery of novel SL mimics.
Collapse
Affiliation(s)
- Chunying Wang
- State Key Laboratory of Plant Physiology and Biochemistry, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Bingbo Guo
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Zhaokai Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Lin Du
- State Key Laboratory of Plant Physiology and Biochemistry, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Chunxin Yu
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| | - Yuyi Zhou
- State Key Laboratory of Plant Physiology and Biochemistry, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Hanqing Zhao
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| | - Ye Wang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| | - Liusheng Duan
- State Key Laboratory of Plant Physiology and Biochemistry, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
| |
Collapse
|
27
|
Cao YY, Chen YC, Guo SH, Gan XY, Tian L, Huang LQ, Yuan Y. [Research progress in strigolactones and application prospect in medicinal plants]. Zhongguo Zhong Yao Za Zhi 2023; 48:3132-3139. [PMID: 37381995 DOI: 10.19540/j.cnki.cjcmm.20221221.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Strigolactones(SLs) are a class of sesquiterpenoids derived from the carotenoid biosynthesis pathway with the core carbon skeleton consisting of tricyclic lactone(ABC tricyclic ring) and α,β-unsaturated furan ring(D ring). SLs are widely distributed in higher plants and are symbiotic signals between plants and Arbuscular mycorrhiza(AM), which play key roles in the evolution of plant colonizing terrestrial habitats. As a new type of plant hormone, SLs possess such important biological functions as inhibiting shoot branching(tillers), regulating root architecture, promoting secondary growth, and improving plant stress resistance. Therefore, SLs have attracted wide attention. The biological functions of SLs are not only closely related to the formation of "excellent shape and quality" of Chinese medicinal materials but also have important practical significance for the production of high-quality medicinal materials. However, SLs have been currently widely studied in model plants and crops such as Oryza sativa and Arabidopsis thaliana, and few related studies have been reported on SLs in medicinal plants, which need to be strengthened. This review focused on the latest research progress in the isolation and identification, biological and artificial synthesis pathways, biosynthesis sites and transport modes, signal transduction pathways and mechanisms, and biological functions of SLs, and prospected the research on the regulation mechanism of SLs in the growth and development of medicinal plants and their related application on targeted regulation of Chinese herbal medicine production, which is expected to provide some references for the in-depth research on SLs in the field of Chinese medicinal resources.
Collapse
Affiliation(s)
- Yi-Ying Cao
- Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences Yinchuan 750002, China State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China School of Pharmacy,Anhui University of Chinese Medicine Hefei 230012, China
| | - Yu-Chao Chen
- Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences Yinchuan 750002, China State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Sheng-Hu Guo
- Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences Yinchuan 750002, China
| | - Xiao-Yan Gan
- Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences Yinchuan 750002, China
| | - Li Tian
- Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences Yinchuan 750002, China
| | - Lu-Qi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Yuan Yuan
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China School of Pharmacy,Anhui University of Chinese Medicine Hefei 230012, China
| |
Collapse
|
28
|
Abstract
The process of apical dominance by which the apical bud/shoot tip of the plant inhibits the outgrowth of axillary buds located below has been studied for more than a century. Different approaches were used over time with first the physiology era, the genetic era, and then the multidisciplinary era. During the physiology era, auxin was thought of as the master regulator of apical dominance acting indirectly to inhibit bud outgrowth via unknown secondary messenger(s). Potential candidates were cytokinin (CK) and abscisic acid (ABA). The genetic era with the screening of shoot branching mutants in different species revealed the existence of a novel carotenoid-derived branching inhibitor and led to the significant discovery of strigolactones (SLs) as a novel class of plant hormones. The re-discovery of the major role of sugars in apical dominance emerged from modern physiology experiments and involves ongoing work with genetic material affected in sugar-signalling. As crops and natural selection rely on the emergent properties of networks such as this branching network, future work should explore the whole network, the details of which are critical but not individually sufficient to solve the wicked problems of sustainable food supply and climate change.
Collapse
Affiliation(s)
- Christine A Beveridge
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, St Lucia, QLD 4072, Australia
- School of Biological Sciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Catherine Rameau
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000, Versailles, France
| | - Akila Wijerathna-Yapa
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, St Lucia, QLD 4072, Australia
- School of Biological Sciences, The University of Queensland, St Lucia, QLD 4072, Australia
| |
Collapse
|
29
|
Chen T, Xiao W, Huang C, Zhou D, Liu Y, Guo T, Chen Z, Wang H. Fine Mapping of the Affecting Tillering and Plant Height Gene CHA-1 in Rice. Plants (Basel) 2023; 12:1507. [PMID: 37050133 PMCID: PMC10096525 DOI: 10.3390/plants12071507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/25/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
The plant architecture of rice is an important factor affecting yield. Strigolactones (SLs) are newly discovered carotenoid-derived plant hormones that play an important role in rice plant architecture. In this study, a high-tillering dwarf mutant, CHA-1, was identified by spatial mutagenesis. CHA-1 was located in the region of 31.52-31.55 MB on chromosome 1 by map-based cloning. Compared with the wild-type THZ, the CHA-1 mutant showed that ACCAC replaced TGGT in the coding region of the candidate gene LOC_Os01g54810, leading to premature termination of expression. Genetic complementation experiments proved that LOC_Os01g54810 was CHA-1, which encodes a putative member of Class III lipase. Expression analysis showed that CHA-1 was constitutively expressed in various organs of rice. Compared with those in THZ, the expression levels of the D17 and D10 genes were significantly downregulated in the CHA-1 mutant. In addition, the concentrations of ent-2'-epi-5-deoxystrigol (epi-5DS) in the root exudates of the CHA-1 mutant was significantly reduced compared with that of THZ, and exogenous application of GR24 inhibited the tillering of the CHA-1 mutant. These results suggest that CHA-1 influences rice architecture by affecting SL biosynthesis.
Collapse
|
30
|
Sigalas PP, Buchner P, Thomas SG, Jamois F, Arkoun M, Yvin JC, Bennett MJ, Hawkesford MJ. Nutritional and tissue-specific regulation of cytochrome P450 CYP711A MAX1 homologues and strigolactone biosynthesis in wheat. J Exp Bot 2023; 74:1890-1910. [PMID: 36626359 PMCID: PMC10049918 DOI: 10.1093/jxb/erad008] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Strigolactones (SLs) are a class of phytohormones regulating branching/tillering, and their biosynthesis has been associated with nutritional signals and plant adaptation to nutrient-limiting conditions. The enzymes in the SL biosynthetic pathway downstream of carlactone are of interest as they are responsible for structural diversity in SLs, particularly cytochrome P450 CYP711A subfamily members, such as MORE AXILLARY GROWTH1 (MAX1) in Arabidopsis. We identified 13 MAX1 homologues in wheat, clustering in four clades and five homoeologous subgroups. The utilization of RNA-sequencing data revealed a distinct expression pattern of MAX1 homologues in above- and below-ground tissues, providing insights into the distinct roles of MAX1 homologues in wheat. In addition, a transcriptional analysis showed that SL biosynthetic genes were systematically regulated by nitrogen supply. Nitrogen limitation led to larger transcriptional changes in the basal nodes than phosphorus limitation, which was consistent with the observed tillering suppression, as wheat showed higher sensitivity to nitrogen. The opposite was observed in roots, with phosphorus limitation leading to stronger induction of most SL biosynthetic genes compared with nitrogen limitation. The observed tissue-specific regulation of SL biosynthetic genes in response to nutritional signals is likely to reflect the dual role of SLs as rhizosphere signals and branching inhibitors.
Collapse
Affiliation(s)
| | - Peter Buchner
- Rothamsted Research, West Common, Harpenden AL5 2JQ, UK
| | | | - Frank Jamois
- Laboratoire de Physico-Chimie et Bioanalytique, Centre Mondial de l’Innovation Roullier, Timac Agro International, 18 Avenue Franklin Roosevelt, Saint-Malo, 35400, France
| | - Mustapha Arkoun
- Laboratoire de Nutrition Végétale, Centre Mondial de l’Innovation Roullier, Timac Agro International, 18 Avenue Franklin Roosevelt, Saint-Malo, 35400, France
| | - Jean-Claude Yvin
- Laboratoire de Nutrition Végétale, Centre Mondial de l’Innovation Roullier, Timac Agro International, 18 Avenue Franklin Roosevelt, Saint-Malo, 35400, France
| | - Malcolm J Bennett
- Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | | |
Collapse
|
31
|
Sun H, Guo X, Zhu X, Gu P, Zhang W, Tao W, Wang D, Wu Y, Zhao Q, Xu G, Fu X, Zhang Y. Strigolactone and gibberellin signaling coordinately regulate metabolic adaptations to changes in nitrogen availability in rice. Mol Plant 2023; 16:588-598. [PMID: 36683328 DOI: 10.1016/j.molp.2023.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 12/21/2022] [Accepted: 01/19/2023] [Indexed: 06/17/2023]
Abstract
Modern semi-dwarf rice varieties of the "Green Revolution" require a high supply of nitrogen (N) fertilizer to produce high yields. A better understanding of the interplay between N metabolism and plant developmental processes is required for improved N-use efficiency and agricultural sustainability. Here, we show that strigolactones (SLs) modulate root metabolic and developmental adaptations to low N availability for ensuring efficient uptake and translocation of available N. The key repressor DWARF 53 (D53) of the SL signaling pathway interacts with the transcription factor GROWTH-REGULATING FACTOR 4 (GRF4) and prevents GRF4 from binding to its target gene promoters. N limitation induces the accumulation of SLs, which in turn promotes SL-mediated degradation of D53, leading to the release of GRF4 and thus promoting the expression of genes associated with N metabolism. N limitation also induces degradation of the DELLA protein SLENDER RICE 1 (SLR1) in an D14- and D53-dependent manner, effectively releasing GRF4 from competitive inhibition caused by SLR1. Collectively, our findings reveal a previously unrecognized mechanism underlying SL and gibberellin crosstalk in response to N availability, advancing our understanding of plant growth-metabolic coordination and facilitating the design of the strategies for improving N-use efficiency in high-yield crops.
Collapse
Affiliation(s)
- Huwei Sun
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Rice Biology in Henan Province, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiaoli Guo
- Key Laboratory of Rice Biology in Henan Province, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiuli Zhu
- Key Laboratory of Rice Biology in Henan Province, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou 450002, China
| | - Pengyuan Gu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenqing Tao
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Daojian Wang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yunzhe Wu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100049, China
| | - Quanzhi Zhao
- Key Laboratory of Rice Biology in Henan Province, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou 450002, China
| | - Guohua Xu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiangdong Fu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100049, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yali Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
| |
Collapse
|
32
|
Yang Y, Abuauf H, Song S, Wang JY, Alagoz Y, Moreno JC, Mi J, Ablazov A, Jamil M, Ali S, Zheng X, Balakrishna A, Blilou I, Al-Babili S. The Arabidopsis D27-LIKE1 is a cis/cis/trans-β-carotene isomerase that contributes to Strigolactone biosynthesis and negatively impacts ABA level. Plant J 2023; 113:986-1003. [PMID: 36602437 DOI: 10.1111/tpj.16095] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 12/06/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The enzyme DWARF27 (D27) catalyzes the reversible isomerization of all-trans- into 9-cis-β-carotene, initiating strigolactone (SL) biosynthesis. Genomes of higher plants encode two D27-homologs, D27-like1 and -like2, with unknown functions. Here, we investigated the enzymatic activity and biological function of the Arabidopsis D27-like1. In vitro enzymatic assays and expression in Synechocystis sp. PCC6803 revealed an unreported 13-cis/15-cis/9-cis- and a 9-cis/all-trans-β-carotene isomerization. Although disruption of AtD27-like1 did not cause SL deficiency phenotypes, overexpression of AtD27-like1 in the d27 mutant restored the more-branching phenotype, indicating a contribution of AtD27-like1 to SL biosynthesis. Accordingly, generated d27 d27like1 double mutants showed a more pronounced branching phenotype compared to d27. The contribution of AtD27-like1 to SL biosynthesis is likely a result of its formation of 9-cis-β-carotene that was present at higher levels in AtD27-like1 overexpressing lines. By contrast, AtD27-like1 expression correlated negatively with the content of 9-cis-violaxanthin, a precursor of ABA, in shoots. Consistently, ABA levels were higher in shoots and also in dry seeds of the d27like1 and d27 d27like1 mutants. Transgenic lines expressing GUS driven by the AtD27LIKE1 promoter and transcript analysis of hormone-treated Arabidopsis seedlings revealed that AtD27LIKE1 is expressed in different tissues and affects ABA and auxin. Taken together, our work reports a cis/cis-β-carotene isomerase that affects the content of both cis-carotenoid-derived plant hormones, ABA and SLs.
Collapse
Affiliation(s)
- Yu Yang
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Haneen Abuauf
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
- Department of Biology, Faculty of Applied Sciences, Umm Al-Qura University, 8XH2+XVP, Mecca, 24382, Saudi Arabia
| | - Shanshan Song
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Jian You Wang
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Yagiz Alagoz
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Juan C Moreno
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Jianing Mi
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Abdugaffor Ablazov
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| | - Muhammad Jamil
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Shawkat Ali
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
- Agriculture and Agri-Food Canada, Kentville Research and Development Centre, 32 Main Street, Kentville, NS, B4N 1J5, Canada
| | - Xiongjie Zheng
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Aparna Balakrishna
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Ikram Blilou
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
- The Laboratory of Plant Cell and Developmental Biology, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Jeddah, 23955, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah, 23955, Saudi Arabia
| |
Collapse
|
33
|
Volpe V, Chialva M, Mazzarella T, Crosino A, Capitanio S, Costamagna L, Kohlen W, Genre A. Long-lasting impact of chitooligosaccharide application on strigolactone biosynthesis and fungal accommodation promotes arbuscular mycorrhiza in Medicago truncatula. New Phytol 2023; 237:2316-2331. [PMID: 36564991 DOI: 10.1111/nph.18697] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
The establishment of arbuscular mycorrhiza (AM) between plants and Glomeromycotina fungi is preceded by the exchange of chemical signals: fungal released Myc-factors, including chitooligosaccharides (CO) and lipo-chitooligosaccharides (LCO), activate plant symbiotic responses, while root-exuded strigolactones stimulate hyphal branching and boost CO release. Furthermore, fungal signaling reinforcement through CO application was shown to promote AM development in Medicago truncatula, but the cellular and molecular bases of this effect remained unclear. Here, we focused on long-term M. truncatula responses to CO treatment, demonstrating its impact on the transcriptome of both mycorrhizal and nonmycorrhizal roots over several weeks and providing an insight into the mechanistic bases of the CO-dependent promotion of AM colonization. CO treatment caused the long-lasting regulation of strigolactone biosynthesis and fungal accommodation-related genes. This was mirrored by an increase in root didehydro-orobanchol content, and the promotion of accommodation responses to AM fungi in root epidermal cells. Lastly, an advanced downregulation of AM symbiosis marker genes was observed at the latest time point in CO-treated plants, in line with an increased number of senescent arbuscules. Overall, CO treatment triggered molecular, metabolic, and cellular responses underpinning a protracted acceleration of AM development.
Collapse
Affiliation(s)
- Veronica Volpe
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Matteo Chialva
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Teresa Mazzarella
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Andrea Crosino
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Serena Capitanio
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Lorenzo Costamagna
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Wouter Kohlen
- Laboratory of Molecular Biology, Wageningen University & Research, Wageningen, 6708, PB, the Netherlands
| | - Andrea Genre
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| |
Collapse
|
34
|
Hellens AM, Chabikwa TG, Fichtner F, Brewer PB, Beveridge CA. Identification of new potential downstream transcriptional targets of the strigolactone pathway including glucosinolate biosynthesis. Plant Direct 2023; 7:e486. [PMID: 36945724 PMCID: PMC10024969 DOI: 10.1002/pld3.486] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 01/19/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Strigolactones regulate shoot branching and many aspects of plant growth, development, and allelopathy. Strigolactones are often discussed alongside auxin because they work together to inhibit shoot branching. However, the roles and mechanisms of strigolactones and how they act independently of auxin are still elusive. Additionally, there is still much in general to be discovered about the network of molecular regulators and their interactions in response to strigolactones. Here, we conducted an experiment in Arabidopsis with physiological treatments and strigolactone mutants to determine transcriptional pathways associated with strigolactones. The three physiological treatments included shoot tip removal with and without auxin treatment and treatment of intact plants with the auxin transport inhibitor, N-1-naphthylphthalamic acid (NPA). We identified the glucosinolate biosynthesis pathway as being upregulated across strigolactone mutants indicating strigolactone-glucosinolate crosstalk. Additionally, strigolactone application cannot restore the highly branched phenotype observed in glucosinolate biosynthesis mutants, placing glucosinolate biosynthesis downstream of strigolactone biosynthesis. Oxidative stress genes were enriched across the experiment suggesting that this process is mediated through multiple hormones. Here, we also provide evidence supporting non-auxin-mediated, negative feedback on strigolactone biosynthesis. Increases in strigolactone biosynthesis gene expression seen in strigolactone mutants could not be fully restored by auxin. By contrast, auxin could fully restore auxin-responsive gene expression increases, but not sugar signaling-related gene expression. Our data also point to alternative roles of the strigolactone biosynthesis genes and potential new signaling functions of strigolactone precursors. In this study, we identify a strigolactone-specific regulation of glucosinolate biosynthesis genes indicating that the two are linked and may work together in regulating stress and shoot ranching responses in Arabidopsis. Additionally, we provide evidence for non-auxinmediated feedback on strigolactone biosynthesis and discuss this in the context of sugar signaling.
Collapse
Affiliation(s)
- Alicia M. Hellens
- School of Biological SciencesUniversity of QueenslandSt. LuciaQueenslandAustralia
- ARC Centre for Plant Success in Nature and AgricultureThe University of QueenslandSt LuciaQueenslandAustralia
| | - Tinashe G. Chabikwa
- School of Biological SciencesUniversity of QueenslandSt. LuciaQueenslandAustralia
- QIMR Berghofer Medical Research InstituteBrisbaneQueenslandAustralia
| | - Franziska Fichtner
- School of Biological SciencesUniversity of QueenslandSt. LuciaQueenslandAustralia
- ARC Centre for Plant Success in Nature and AgricultureThe University of QueenslandSt LuciaQueenslandAustralia
- Institute for Plant BiochemistryHeinrich Heine UniversityDüsseldorfGermany
| | - Philip B. Brewer
- School of Biological SciencesUniversity of QueenslandSt. LuciaQueenslandAustralia
- ARC Centre for Plant Success in Nature and AgricultureThe University of QueenslandSt LuciaQueenslandAustralia
- School of Agriculture, Food and WineThe University of AdelaideGlen OsmondSouth AustraliaAustralia
| | - Christine A. Beveridge
- School of Biological SciencesUniversity of QueenslandSt. LuciaQueenslandAustralia
- ARC Centre for Plant Success in Nature and AgricultureThe University of QueenslandSt LuciaQueenslandAustralia
| |
Collapse
|
35
|
Abstract
Karrikins (KARs) are a class of butenolide compounds found in smoke that were first identified as seed germination stimulants for fire-following species. Early studies of KARs classified the germination and postgermination responses of many plant species and investigated crosstalk with plant hormones that regulate germination. The discovery that Arabidopsis thaliana responds to KARs laid the foundation for identifying mutants with altered KAR responses. Genetic analysis of KAR signalling revealed an unexpected link to strigolactones (SLs), a class of carotenoid-derived plant hormones. Substantial progress has since been made towards understanding how KARs are perceived and regulate plant growth, in no small part due to advances in understanding SL perception. KAR and SL signalling systems are evolutionarily related and retain a high degree of similarity. There is strong evidence that KARs are natural analogues of an endogenous signal(s), KAI2 ligand (KL), which remains unknown. KAR/KL signalling regulates many developmental processes in plants including germination, seedling photomorphogenesis, and root and root hair growth. KAR/KL signalling also affects abiotic stress responses and arbuscular mycorrhizal symbiosis. Here, we summarise the current knowledge of KAR/KL signalling and discuss current controversies and unanswered questions in this field.
Collapse
Affiliation(s)
- Mark T Waters
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - David C Nelson
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
| |
Collapse
|
36
|
Ito S. Recent advances in the regulation of root parasitic weed damage by strigolactone-related chemicals. Biosci Biotechnol Biochem 2023; 87:247-255. [PMID: 36610999 DOI: 10.1093/bbb/zbac208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022]
Abstract
Root parasitic weeds such as Striga spp. and Orobanche spp. dramatically reduce the yields of important agricultural crops and cause economic losses of over billions of US dollars worldwide. One reason for the damage by root parasitic weeds is that they germinate after specifically recognizing the host cues, strigolactones (SLs). SLs were identified ˃50 years ago as germination stimulants for root parasitic weeds, and various studies have been conducted to control parasitic weeds using SLs and related chemicals. Recently, biochemical and molecular biological approaches have revealed the SL biosynthesis and SL receptors; using these findings, various SL-related chemicals have been developed. This review summarizes recent research on SLs and their related chemicals for controlling root parasitic weeds.
Collapse
Affiliation(s)
- Shinsaku Ito
- Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, Japan
| |
Collapse
|
37
|
Liu X, Xu Y, Sun W, Wang J, Gao Y, Wang L, Xu W, Wang S, Jiu S, Zhang C. Strigolactones modulate stem length and diameter of cherry rootstocks through interaction with other hormone signaling pathways. Front Plant Sci 2023; 14:1092654. [PMID: 36844087 PMCID: PMC9948674 DOI: 10.3389/fpls.2023.1092654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/02/2023] [Indexed: 06/18/2023]
Abstract
Stem growth and development has considerable effects on plant architecture and yield performance. Strigolactones (SLs) modulate shoot branching and root architecture in plants. However, the molecular mechanisms underlying SLs regulate cherry rootstocks stem growth and development remain unclear. Our studies showed that the synthetic SL analog rac-GR24 and the biosynthetic inhibitor TIS108 affected stem length and diameter, aboveground weight, and chlorophyll content. The stem length of cherry rootstocks following TIS108 treatment reached a maximum value of 6.97 cm, which was much higher than that following rac-GR24 treatments at 30 days after treatment. Stem paraffin section showed that SLs affected cell size. A total of 1936, 743, and 1656 differentially expressed genes (DEGs) were observed in stems treated with 10 μM rac-GR24, 0.1 μM rac-GR24, and 10 μM TIS108, respectively. RNA-seq results highlighted several DEGs, including CKX, LOG, YUCCA, AUX, and EXP, which play vital roles in stem growth and development. UPLC-3Q-MS analysis revealed that SL analogs and inhibitors affected the levels of several hormones in the stems. The endogenous GA3 content of stems increased significantly with 0.1 μM rac-GR24 or 10 μM TIS108 treatment, which is consistent with changes in the stem length following the same treatments. This study demonstrated that SLs affected stem growth of cherry rootstocks by changing other endogenous hormone levels. These results provide a solid theoretical basis for using SLs to modulate plant height and achieve sweet cherry dwarfing and high-density cultivation.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Songtao Jiu
- *Correspondence: Songtao Jiu, ; Caixi Zhang,
| | - Caixi Zhang
- *Correspondence: Songtao Jiu, ; Caixi Zhang,
| |
Collapse
|
38
|
Fan X, Li Y, Deng CH, Wang S, Wang Z, Wang Y, Qiu C, Xu X, Han Z, Li W. Strigolactone regulates adventitious root formation via the MdSMXL7-MdWRKY6-MdBRC1 signaling cascade in apple. Plant J 2023; 113:772-786. [PMID: 36575587 DOI: 10.1111/tpj.16082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/05/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Propagation through stem cuttings is a popular method worldwide for species such as fruit tree rootstocks and forest trees. Adventitious root (AR) formation from stem cuttings is crucial for effective and successful clonal propagation of apple rootstocks. Strigolactones (SLs) are newly identified hormones involved in AR formation. However, the regulatory mechanisms underpinning this process remain elusive. In the present study, weighted gene co-expression network analysis, as well as rooting assays using stable transgenic apple materials, revealed that MdBRC1 served as a key gene in the inhibition of AR formation by SLs. We have demonstrated that MdSMXL7 and MdWRKY6 synergistically regulated MdBRC1 expression, depending on the interactions of MdSMXL7 and MdWRKY6 at the protein level downstream of SLs as well as the direct promoter binding on MdBRC1 by MdWRKY6. Furthermore, biochemical studies and genetic analysis revealed that MdBRC1 inhibited AR formation by triggering the expression of MdGH3.1 in a transcriptional activation pathway. Finally, the present study not only proposes a component, MdWRKY6, that enables MdSMXL7 to regulate MdBRC1 during the process of SL-controlled AR formation in apple, but also provides prospective target genes to enhance AR formation capacity using CRISPR (i.e. clustered regularly interspaced short palindromic repeats) technology, particularly in woody plants.
Collapse
Affiliation(s)
- Xingqiang Fan
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yuqi Li
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Cecilia H Deng
- The New Zealand Institute for Plant and Food Research Limited, 120 Mt Albert Road, Mt Albert, Auckland, 1025, New Zealand
| | - Shiyao Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zijun Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Changpeng Qiu
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xuefeng Xu
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zhenhai Han
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Wei Li
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
39
|
Demurtas OC, Nicolia A, Diretto G. Terpenoid Transport in Plants: How Far from the Final Picture? Plants (Basel) 2023; 12:634. [PMID: 36771716 PMCID: PMC9919377 DOI: 10.3390/plants12030634] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Contrary to the biosynthetic pathways of many terpenoids, which are well characterized and elucidated, their transport inside subcellular compartments and the secretion of reaction intermediates and final products at the short- (cell-to-cell), medium- (tissue-to-tissue), and long-distance (organ-to-organ) levels are still poorly understood, with some limited exceptions. In this review, we aim to describe the state of the art of the transport of several terpene classes that have important physiological and ecological roles or that represent high-value bioactive molecules. Among the tens of thousands of terpenoids identified in the plant kingdom, only less than 20 have been characterized from the point of view of their transport and localization. Most terpenoids are secreted in the apoplast or stored in the vacuoles by the action of ATP-binding cassette (ABC) transporters. However, little information is available regarding the movement of terpenoid biosynthetic intermediates from plastids and the endoplasmic reticulum to the cytosol. Through a description of the transport mechanisms of cytosol- or plastid-synthesized terpenes, we attempt to provide some hypotheses, suggestions, and general schemes about the trafficking of different substrates, intermediates, and final products, which might help develop novel strategies and approaches to allow for the future identification of terpenoid transporters that are still uncharacterized.
Collapse
Affiliation(s)
- Olivia Costantina Demurtas
- Biotechnology and Agro-Industry Division, Biotechnology Laboratory, Casaccia Research Center, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, 00123 Rome, Italy
| | - Alessandro Nicolia
- Council for Agricultural Research and Economics, Research Centre for Vegetable and Ornamental Crops, via Cavalleggeri 25, 84098 Pontecagnano Faiano, Italy
| | - Gianfranco Diretto
- Biotechnology and Agro-Industry Division, Biotechnology Laboratory, Casaccia Research Center, ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, 00123 Rome, Italy
| |
Collapse
|
40
|
Ogawa S, Shirasu K. Strigol induces germination of the facultative parasitic plant Phtheirospermum japonicum in the absence of nitrate ions. Plant Signal Behav 2022; 17:2114647. [PMID: 35993137 PMCID: PMC9397475 DOI: 10.1080/15592324.2022.2114647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Root parasitic plants in the family Orobanchaceae, such as Striga and Orobanche spp., infest major crops worldwide, leading to a multibillion-dollar loss annually. Host-derived strigolactones (SLs), recognized by a group of α/β hydrolase receptors (KAI2d) in these parasites, are important determinants for germinating root parasitic plants near the roots of host plants. Phtheirospermum japonicum, a facultative hemiparasitic Orobanchaceae plant, can germinate and grow in the presence or absence of the host and can also exhibit root chemotropism to host-derived SLs that are perceived via KAI2d. However, the importance of SLs in P. japonicum germination remains unclear. In this study, we found that germination of P. japonicum was suppressed in the absence of nitrate ions and that germination of P. japonicum was promoted by exogenous strigol, an SL, under such conditions. We propose a model in which P. japonicum may select either independent living or parasitism in response to ambient nitrogen conditions and host presence.
Collapse
Affiliation(s)
- Satoshi Ogawa
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, Japan
| | - Ken Shirasu
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, Japan
- Graduate School of Science, the University of Tokyo, Tokyo, Japan
| |
Collapse
|
41
|
Luo L. Is strigolactone signaling a key player in regulating tiller formation in response to nitrogen? Front Plant Sci 2022; 13:1081740. [PMID: 36589130 PMCID: PMC9800024 DOI: 10.3389/fpls.2022.1081740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
|
42
|
Soliman S, Wang Y, Han Z, Pervaiz T, El-kereamy A. Strigolactones in Plants and Their Interaction with the Ecological Microbiome in Response to Abiotic Stress. Plants (Basel) 2022; 11:3499. [PMID: 36559612 PMCID: PMC9781102 DOI: 10.3390/plants11243499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Phytohormones play an essential role in enhancing plant tolerance by responding to abiotic stresses, such as nutrient deficiency, drought, high temperature, and light stress. Strigolactones (SLs) are carotenoid derivatives that occur naturally in plants and are defined as novel phytohormones that regulate plant metabolism, growth, and development. Strigolactone assists plants in the acquisition of defensive characteristics against drought stress by initiating physiological responses and mediating the interaction with soil microorganisms. Nutrient deficiency is an important abiotic stress factor, hence, plants perform many strategies to survive against nutrient deficiency, such as enhancing the efficiency of nutrient uptake and forming beneficial relationships with microorganisms. Strigolactone attracts various microorganisms and provides the roots with essential elements, including nitrogen and phosphorus. Among these advantageous microorganisms are arbuscular mycorrhiza fungi (AMF), which regulate plant metabolic activities through phosphorus providing in roots. Bacterial nodulations are also nitrogen-fixing microorganisms found in plant roots. This symbiotic relationship is maintained as the plant provides organic molecules, produced in the leaves, that the bacteria could otherwise not independently generate. Related stresses, such as light stress and high-temperature stress, could be affected directly or indirectly by strigolactone. However, the messengers of these processes are unknown. The most prominent connector messengers have been identified upon the discovery of SLs and the understanding of their hormonal effect. In addition to attracting microorganisms, these groups of phytohormones affect photosynthesis, bridge other phytohormones, induce metabolic compounds. In this article, we highlighted the brief information available on SLs as a phytohormone group regarding their common related effects. In addition, we reviewed the status and described the application of SLs and plant response to abiotic stresses. This allowed us to comprehend plants' communication with the ecological microbiome as well as the strategies plants use to survive under various stresses. Furthermore, we identify and classify the SLs that play a role in stress resistance since many ecological microbiomes are unexplained.
Collapse
Affiliation(s)
- Sabry Soliman
- Department of Botany and Plant Sciences, University of California Riverside, Riverside, CA 92521, USA
- Department of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt
- Department of Fruit Science, College of Horticulture, China Agriculture University, Beijing 100083, China
| | - Yi Wang
- Department of Fruit Science, College of Horticulture, China Agriculture University, Beijing 100083, China
| | - Zhenhai Han
- Department of Fruit Science, College of Horticulture, China Agriculture University, Beijing 100083, China
| | - Tariq Pervaiz
- Department of Botany and Plant Sciences, University of California Riverside, Riverside, CA 92521, USA
| | - Ashraf El-kereamy
- Department of Botany and Plant Sciences, University of California Riverside, Riverside, CA 92521, USA
| |
Collapse
|
43
|
Trasoletti M, Visentin I, Campo E, Schubert A, Cardinale F. Strigolactones as a hormonal hub for the acclimation and priming to environmental stress in plants. Plant Cell Environ 2022; 45:3611-3630. [PMID: 36207810 PMCID: PMC9828678 DOI: 10.1111/pce.14461] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Strigolactones are phytohormones with many attributed roles in development, and more recently in responses to environmental stress. We will review evidence of the latter in the frame of the classic distinction among the three main stress acclimation strategies (i.e., avoidance, tolerance and escape), by taking osmotic stress in its several facets as a non-exclusive case study. The picture we will sketch is that of a hormonal family playing important roles in each of the mechanisms tested so far, and influencing as well the build-up of environmental memory through priming. Thus, strigolactones appear to be backstage operators rather than frontstage players, setting the tune of acclimation responses by fitting them to the plant individual history of stress experience.
Collapse
Affiliation(s)
| | | | - Eva Campo
- DISAFA, PlantStressLabTurin UniversityTurinItaly
| | | | | |
Collapse
|
44
|
Kumar A, Lin H, Li Q, Ruan Y, Cousins D, Li F, Gao S, Jackson K, Wen J, Murray JD, Xu P. Anthocyanin pigmentation as a quantitative visual marker for arbuscular mycorrhizal fungal colonization of Medicago truncatula roots. New Phytol 2022; 236:1988-1998. [PMID: 36128658 DOI: 10.1111/nph.18504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Visualization of root colonization by arbuscular mycorrhizal fungi (AMF) is the most elementary experiment in the field of mycorrhizal symbiosis. The most widely used approach for evaluating levels of AMF colonization is staining with trypan blue or ink, which is scored using the time-consuming grid intersection method. Here we demonstrate the use of an anthocyanin-based visual marker system for visualizing AMF colonization of Medicago truncatula roots. Expression of MtLAP1, a transcription factor which regulates the production of anthocyanins, from the AMF-induced Kunitz Protease Inhibitor 106 promoter, allowed the visualization of arbuscules in live plant tissues without microscopy or staining. This marker system allowed straightforward qualitative evaluation of the ram1, vpy and dmi3 AMF phenotypes using Agrobacterium rhizogenes hairy-root transformation. For the strigolactone biosynthesis mutant carotenoid cleavage dioxygenase 8a and a novel mutant scooby, which show quantitative AMF symbiotic phenotypes, the amount of anthocyanins in the roots estimated by spectrophotometry correlated very well with colonization levels estimated by staining and scoring using the grid intersection method. The LAP1-based marker system therefore provides a highly efficient approach for mutant screening and monitoring of AMF colonization in live tissues by eye, or for quantitative assessment using a simple and quick photometric assay.
Collapse
Affiliation(s)
- Anil Kumar
- CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre for Excellence in Molecular Plant Sciences (CEMPS), Shanghai Institute of Plant Physiology and Ecology (SIPPE), Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
| | - Hui Lin
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Qiuju Li
- CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre for Excellence in Molecular Plant Sciences (CEMPS), Shanghai Institute of Plant Physiology and Ecology (SIPPE), Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
| | - Yiting Ruan
- CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre for Excellence in Molecular Plant Sciences (CEMPS), Shanghai Institute of Plant Physiology and Ecology (SIPPE), Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
| | - Donna Cousins
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Fuyu Li
- CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre for Excellence in Molecular Plant Sciences (CEMPS), Shanghai Institute of Plant Physiology and Ecology (SIPPE), Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
| | - Shu Gao
- Shanghai Engineering Research Center of Plant Germplasm Resource, College of Life Science, Shanghai Normal University, Shanghai, 200234, China
| | - Kirsty Jackson
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Jiangqi Wen
- Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Jeremy D Murray
- CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Centre for Excellence in Molecular Plant Sciences (CEMPS), Shanghai Institute of Plant Physiology and Ecology (SIPPE), Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032, China
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Ping Xu
- Shanghai Engineering Research Center of Plant Germplasm Resource, College of Life Science, Shanghai Normal University, Shanghai, 200234, China
| |
Collapse
|
45
|
Fan X, Li H, Guo Y, Sun H, Wang S, Qi Q, Jiang X, Wang Y, Xu X, Qiu C, Li W, Han Z. Integrated multi-omics analysis uncovers roles of mdm-miR164b-MdORE1 in strigolactone-mediated inhibition of adventitious root formation in apple. Plant Cell Environ 2022; 45:3582-3603. [PMID: 36000454 DOI: 10.1111/pce.14422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/01/2022] [Accepted: 03/22/2022] [Indexed: 06/15/2023]
Abstract
Apple is one of the most important fruit crops in temperate regions and largely relies on cutting propagation. Adventitious root formation is crucial for the success of cutting propagation. Strigolactones have been reported to function in rooting of woody plants. In this study, we determined that strigolactones have inhibitory effects on adventitious root formation in apple. Transcriptome analysis identified 12 051 differentially expressed genes over the course of adventitious root initiation, with functions related to organogenesis, cell wall biogenesis or plant development. Further analysis indicated that strigolactones might inhibit adventitious root formation through repressing two core hub genes, MdLAC3 and MdORE1. Combining small RNA and degradome sequencing, as well as dual-luciferase sensor assays, we identified and validated three negatively correlated miRNA-mRNA pairs, including mdm-miR397-MdLAC3 and mdm-miR164a/b-MdORE1. Overexpression of mdm-miR164b and silencing MdORE1 exhibited enhanced adventitious root formation in tobacco and apple, respectively. Finally, we verified the role of mdm-miR164b-MdORE1 in strigolactone-mediated repression of rooting ability. Overall, the identified comprehensive regulatory network in apple not only provides insight into strigolactone-mediated adventitious root formation in other woody plants, but also points to a potential strategy for genetic improvement of rooting capacity in woody plants.
Collapse
Affiliation(s)
- Xingqiang Fan
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Hui Li
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Yushuang Guo
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Haochen Sun
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Shiyao Wang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Qi Qi
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
- National Engineering Laboratory for Tree Breeding, College of Life Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Xiangning Jiang
- National Engineering Laboratory for Tree Breeding, College of Life Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Yi Wang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Xuefeng Xu
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Changpeng Qiu
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Wei Li
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Zhenhai Han
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| |
Collapse
|
46
|
Gulyás Z, Moncsek B, Hamow KÁ, Stráner P, Tolnai Z, Badics E, Incze N, Darkó É, Nagy V, Perczel A, Kovács L, Soós V. D27-LIKE1 isomerase has a preference towards trans/cis and cis/cis conversions of carotenoids in Arabidopsis. Plant J 2022; 112:1377-1395. [PMID: 36308414 DOI: 10.1111/tpj.16017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Carotenoids contribute to a variety of physiological processes in plants, functioning also as biosynthesis precursors of ABA and strigolactones (SLs). SL biosynthesis starts with the enzymatic conversion of all-trans-β-carotene to 9-cis-β-carotene by the DWARF27 (D27) isomerase. In Arabidopsis, D27 has two closely related paralogs, D27-LIKE1 and D27-LIKE2, which were predicted to be β-carotene-isomerases. In the present study, we characterised D27-LIKE1 and identified some key aspects of its physiological and enzymatic functions in Arabidopsis. d27-like1-1 mutant does not display any strigolactone-deficient traits and exhibits a substantially higher 9-cis-violaxanthin content, which is accompanied by a slightly higher ABA level. In vitro feeding assays with recombinant D27-LIKE1 revealed that the protein exhibits affinity to all β-carotene isoforms but with an exclusive preference towards trans/cis conversions and the interconversion between 9-cis, 13-cis and 15-cis-β-carotene forms, and accepts zeaxanthin and violaxanthin as substrates. Finally, we present evidence showing that D27-LIKE1 mRNA is phloem mobile and D27-LIKE1 is an ancient isomerase with a long evolutionary history. In summary, we demonstrate that D27-LIKE1 is a carotenoid isomerase with multi-substrate specificity and has a characteristic preference towards the catalysation of cis/cis interconversion of carotenoids. Therefore, D27-LIKE1 is a potential regulator of carotenoid cis pools and, eventually, SL and ABA biosynthesis pathways.
Collapse
Affiliation(s)
- Zsolt Gulyás
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
| | - Blanka Moncsek
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
- Doctoral School of Biology, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter s. 1/A, Budapest, 1117, Hungary
| | - Kamirán Áron Hamow
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
| | - Pál Stráner
- Laboratory of Structural Chemistry and Biology, MTA-ELTE Protein Modelling Research Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter s. 1/A, Budapest, 1117, Hungary
| | - Zoltán Tolnai
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
| | - Eszter Badics
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
- Doctoral School of Biology, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter s. 1/A, Budapest, 1117, Hungary
| | - Norbert Incze
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
- Doctoral School of Biology, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter s. 1/A, Budapest, 1117, Hungary
| | - Éva Darkó
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
| | - Valéria Nagy
- Biological Research Centre, ELKH, 6726, Szeged, Temesvári krt. 62, Hungary
| | - András Perczel
- Laboratory of Structural Chemistry and Biology, MTA-ELTE Protein Modelling Research Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter s. 1/A, Budapest, 1117, Hungary
| | - László Kovács
- Biological Research Centre, ELKH, 6726, Szeged, Temesvári krt. 62, Hungary
| | - Vilmos Soós
- Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, Martonvásár, 2462, Hungary
| |
Collapse
|
47
|
Wang JY, Braguy J, Chen GTE, Jamil M, Balakrishna A, Berqdar L, Al-Babili S. Perspectives on the metabolism of strigolactone rhizospheric signals. Front Plant Sci 2022; 13:1062107. [PMID: 36507392 PMCID: PMC9729874 DOI: 10.3389/fpls.2022.1062107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/10/2022] [Indexed: 06/17/2023]
Abstract
Strigolactones (SLs) are a plant hormone regulating different processes in plant development and adjusting plant's architecture to nutrition availability. Moreover, SLs are released by plants to communicate with beneficial fungi in the rhizosphere where they are, however, abused as chemical cues inducing seed germination of root parasitic weeds, e.g. Striga spp., and guiding them towards host plants in their vicinity. Based on their structure, SLs are divided into canonical and non-canonical SLs. In this perspective, we describe the metabolism of root-released SLs and SL pattern in rice max1-900 mutants, which are affected in the biosynthesis of canonical SLs, and show the accumulation of two putative non-canonical SLs, CL+30 and CL+14. Using max1-900 and SL-deficient d17 rice mutants, we further investigated the metabolism of non-canonical SLs and their possible biological roles. Our results show that the presence and further metabolism of canonical and non-canonical SLs are particularly important for their role in rhizospheric interactions, such as that with root parasitic plants. Hence, we proposed that the root-released SLs are mainly responsible for rhizospheric communications and have low impact on plant architecture, which makes targeted manipulation of root-released SLs an option for rhizospheric engineering.
Collapse
Affiliation(s)
- Jian You Wang
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Justine Braguy
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Guan-Ting Erica Chen
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Muhammad Jamil
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Aparna Balakrishna
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Lamis Berqdar
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| |
Collapse
|
48
|
Swiegers HW, Karpinska B, Hu Y, Dodd IC, Botha AM, Foyer CH. The Effects of High CO 2 and Strigolactones on Shoot Branching and Aphid-Plant Compatibility Control in Pea. Int J Mol Sci 2022; 23:12160. [PMID: 36293014 PMCID: PMC9602761 DOI: 10.3390/ijms232012160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/22/2022] [Accepted: 09/28/2022] [Indexed: 07/30/2023] Open
Abstract
Elevated atmospheric CO2 concentrations (eCO2) regulate plant architecture and susceptibility to insects. We explored the mechanisms underpinning these responses in wild type (WT) peas and mutants defective in either strigolactone (SL) synthesis or signaling. All genotypes had increased shoot height and branching, dry weights and carbohydrate levels under eCO2, demonstrating that SLs are not required for shoot acclimation to eCO2. Since shoot levels of jasmonic acid (JA) and salicylic acid (SA) tended to be lower in SL signaling mutants than the WT under ambient conditions, we compared pea aphid performance on these lines under both CO2 conditions. Aphid fecundity was increased in the SL mutants compared to the WT under both ambient and eCO2 conditions. Aphid infestation significantly decreased levels of JA, isopentenyladenine, trans-zeatin and gibberellin A4 and increased ethylene precursor ACC, gibberellin A1, gibberellic acid (GA3) and SA accumulation in all lines. However, GA3 levels were increased less in the SL signaling mutants than the WT. These studies provide new insights into phytohormone responses in this specific aphid/host interaction and suggest that SLs and gibberellins are part of the network of phytohormones that participate in host susceptibility.
Collapse
Affiliation(s)
- Hendrik Willem Swiegers
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
- Department of Genetics, Stellenbosch University, Stellenbosch 7600, South Africa
- Centre for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Barbara Karpinska
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Yan Hu
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental & Resource Science, Zhejiang University, Hangzhou 310058, China
| | - Ian C. Dodd
- Lancaster Environment Centre, Lancaster University, LEC Building, Lancaster LA1 4YQ, UK
| | - Anna-Maria Botha
- Department of Genetics, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Christine H. Foyer
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| |
Collapse
|
49
|
Alvi AF, Sehar Z, Fatma M, Masood A, Khan NA. Strigolactone: An Emerging Growth Regulator for Developing Resilience in Plants. Plants (Basel) 2022; 11:plants11192604. [PMID: 36235470 PMCID: PMC9571818 DOI: 10.3390/plants11192604] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 05/21/2023]
Abstract
Improving plant resilience to changing environmental conditions is the primary focus of today's scientific research globally. It is essential to find various strategies for the better survival of plants with higher resistance potential to climate change. Strigolactones (SLs) are multifunctional β-carotene derivative molecules that determine a range of plant growth and development aspects, such as root architecture, shoot branching, chlorophyll synthesis, and senescence. SLs facilitate strong defense responses against drought, salinity, heavy metal, nutrient starvation, and heat stress. The SLs trigger other hormonal-responsive pathways and determine plant resilience against stressful environments. This review focuses on the mechanisms regulated by SLs and interaction with other plant hormones to regulate plant developmental processes and SLs' influence on the mitigation of plant damage under abiotic stresses. A better understanding of the signaling and perception of SLs may lead to the path for the sustainability of plants in the changing environmental scenario. The SLs may be considered as an opening door toward sustainable agriculture.
Collapse
|
50
|
Zhang H, Hua R, Wang X, Wu H, Ou H, Lu X, Huang Y, Liu D, Sui S. CpMAX1a, a Cytochrome P450 Monooxygenase Gene of Chimonanthus praecox Regulates Shoot Branching in Arabidopsis. Int J Mol Sci 2022; 23:ijms231810888. [PMID: 36142797 PMCID: PMC9503991 DOI: 10.3390/ijms231810888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Strigolactones (SLs) are a class of important hormones in the regulation of plant branching. In the model plant Arabidopsis, AtMAX1 encodes a cytochrome P450 protein and is a crucial gene in the strigolactone synthesis pathway. Yet, the regulatory mechanism of MAX1 in the shoot branching of wintersweet (Chimonanthus praecox) remains unclear. Here we identified and isolated three MAX1 homologous genes, namely CpMAX1a, CpMAX1b, and CpMAX1c. Quantitative real-time PCR (qRT-PCR) revealed the expression of CpMAX1a in all tissues, being highest in leaves, whereas CpMAX1b was only expressed in stems, while CpMAX1c was expressed in both roots and stem tips. However, CpMAX1a’s expression decreased significantly after decapitation; hence, we verified its gene function. CpMAX1a was located in Arabidopsis chloroplasts. Overexpressing CpMAX1a restored the phenotype of the branching mutant max1−3, and reduced the rosette branch number, but resulted in no significant phenotypic differences from the wild type. Additionally, expression of AtBRC1 was significantly upregulated in transgenic lines, indicating that the CpMAX1a gene has a function similar to the homologous gene of Arabidopsis. In conclusion, our study shows that CpMAX1a plays a conserved role in regulating the branch development of wintersweet. This work provides a molecular and theoretical basis for better understanding the branch development of wintersweet.
Collapse
|