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Xu J, Lu X, Liu Y, Lan W, Wei Z, Yu W, Li C. Interaction between ABA and NO in plants under abiotic stresses and its regulatory mechanisms. FRONTIERS IN PLANT SCIENCE 2024; 15:1330948. [PMID: 38828220 PMCID: PMC11140121 DOI: 10.3389/fpls.2024.1330948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 04/25/2024] [Indexed: 06/05/2024]
Abstract
Abscisic acid (ABA) and nitric oxide (NO), as unique signaling molecules, are involved in plant growth, developmental processes, and abiotic stresses. However, the interaction between ABA and NO under abiotic stresses has little been worked out at present. Therefore, this paper reviews the mechanisms of crosstalk between ABA and NO in the regulation of plants in response to environmental stresses. Firstly, ABA-NO interaction can alleviate the changes of plant morphological indexes damaged by abiotic stresses, for instance, root length, leaf area, and fresh weight. Secondly, regulatory mechanisms of interaction between ABA and NO are also summarized, such as reactive oxygen species (ROS), antioxidant enzymes, proline, flavonoids, polyamines (PAs), ascorbate-glutathione cycle, water balance, photosynthetic, stomatal movement, and post-translational modifications. Meanwhile, the relationships between ABA and NO are established. ABA regulates NO through ROS at the physiological level during the regulatory processes. At the molecular level, NO counteracts ABA through mediating post-translational modifications. Moreover, we also discuss key genes related to the antioxidant enzymes, PAs biosynthesis, ABA receptor, NO biosynthesis, and flavonoid biosynthesis that are regulated by the interaction between ABA and NO under environmental stresses. This review will provide new guiding directions for the mechanism of the crosstalk between ABA and NO to alleviate abiotic stresses.
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Chen Y, Fu Y, Xia Y, Miao Y, Shao J, Xuan W, Liu Y, Xun W, Yan Q, Shen Q, Zhang R. Trichoderma-secreted anthranilic acid promotes lateral root development via auxin signaling and RBOHF-induced endodermal cell wall remodeling. Cell Rep 2024; 43:114030. [PMID: 38551966 DOI: 10.1016/j.celrep.2024.114030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/06/2024] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
Trichoderma spp. have evolved the capacity to communicate with plants by producing various secondary metabolites (SMs). Nonhormonal SMs play important roles in plant root development, while specific SMs from rhizosphere microbes and their underlying mechanisms to control plant root branching are still largely unknown. In this study, a compound, anthranilic acid (2-AA), is identified from T. guizhouense NJAU4742 to promote lateral root development. Further studies demonstrate that 2-AA positively regulates auxin signaling and transport in the canonical auxin pathway. 2-AA also partly rescues the lateral root numbers of CASP1pro:shy2-2, which regulates endodermal cell wall remodeling via an RBOHF-induced reactive oxygen species burst. In addition, our work reports another role for microbial 2-AA in the regulation of lateral root development, which is different from its better-known role in plant indole-3-acetic acid biosynthesis. In summary, this study identifies 2-AA from T. guizhouense NJAU4742, which plays versatile roles in regulating plant root development.
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Affiliation(s)
- Yu Chen
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Yansong Fu
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanwei Xia
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Youzhi Miao
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiahui Shao
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Xuan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and MOA Key Laboratory of Plant Nutrition and Fertilization in Lower-Middle Reaches of the Yangtze River, Nanjing Agricultural University, Nanjing 210095, China
| | - Yunpeng Liu
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Weibing Xun
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Qiuyan Yan
- Institute of Wheat Research, Shanxi Agricultural University, Linfen 041000, China
| | - Qirong Shen
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Ruifu Zhang
- Key Lab of Organic-Based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China.
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Wang R, Zhou T, Wang Y, Dong J, Bai Y, Huang X, Chen C. Exploring the allelopathic autotoxicity mechanism of ginsenosides accumulation under ginseng decomposition based on integrated analysis of transcriptomics and metabolomics. Front Bioeng Biotechnol 2024; 12:1365229. [PMID: 38515624 PMCID: PMC10955472 DOI: 10.3389/fbioe.2024.1365229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/12/2024] [Indexed: 03/23/2024] Open
Abstract
Continuous cropping obstacles seriously constrained the sustainable development of the ginseng industry. The allelopathic autotoxicity of ginsenosides is the key "trigger" of continuous cropping obstacles in ginseng. During harvest, the ginseng plants could be broken and remain in the soil. The decomposition of ginseng residue in soil is one of the important release ways of ginsenosides. Therefore, the allelopathic mechanism of ginsenosides through the decomposed release pathway needs an in-depth study. To investigate this allelopathic regulation mechanism, the integrated analysis of transcriptomics and metabolomics was applied. The prototype ginsenosides in ginseng were detected converse to rare ginsenosides during decomposition. The rare ginsenosides caused more serious damage to ginseng hairy root cells and inhibited the growth of ginseng hairy roots more significantly. By high-throughput RNA sequencing gene transcriptomics study, the significantly differential expressed genes (DEGs) were obtained under prototype and rare ginsenoside interventions. These DEGs were mainly enriched in the biosynthesis of secondary metabolites and metabolic pathways, phytohormone signal transduction, and protein processing in endoplasmic reticulum pathways. Based on the functional enrichment of DEGs, the targeted metabolomics analysis based on UPLC-MS/MS determination was applied to screen endogenous differential metabolized phytohormones (DMPs). The influence of prototype and rare ginsenosides on the accumulation of endogenous phytohormones was studied. These were mainly involved in the biosynthesis of diterpenoid, zeatin, and secondary metabolites, phytohormone signal transduction, and metabolic pathways. After integrating the transcriptomics and metabolomics analysis, ginsenosides could regulate the genes in phytohormone signaling pathways to influence the accumulation of JA, ABA, and SA. The conclusion was that the prototype ginsenosides were converted into rare ginsenosides by ginseng decomposition and released into the soil, which aggravated its allelopathic autotoxicity. The allelopathic mechanism was to intervene in the response regulation of genes related to the metabolic accumulation of endogenous phytohormones in ginseng. This result provides a reference for the in-depth study of continuous cropping obstacles of ginseng.
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Affiliation(s)
| | | | | | | | | | - Xin Huang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, China
| | - Changbao Chen
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, China
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Wang Y, Jin S, Liu Z, Chen G, Cheng P, Li L, Xu S, Shen W. H2 supplied via ammonia borane stimulates lateral root branching via phytomelatonin signaling. PLANT PHYSIOLOGY 2024; 194:884-901. [PMID: 37944026 DOI: 10.1093/plphys/kiad595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 11/12/2023]
Abstract
A reliable and stable hydrogen gas (H2) supply will benefit agricultural laboratory and field trials. Here, we assessed ammonia borane (AB), an efficient hydrogen storage material used in the energy industry, and determined its effect on plant physiology and the corresponding mechanism. Through hydroponics and pot experiments, we discovered that AB increases tomato (Solanum lycopersicum) lateral root (LR) branching and this function depended on the increased endogenous H2 level caused by the sustainable H2 supply. In particular, AB might trigger LR primordia initiation. Transgenic tomato and Arabidopsis (Arabidopsis thaliana) expressing hydrogenase1 (CrHYD1) from Chlamydomonas reinhardtii not only accumulated higher endogenous H2 and phytomelatonin levels but also displayed pronounced LR branching. These endogenous H2 responses achieved by AB or genetic manipulation were sensitive to the pharmacological removal of phytomelatonin, indicating the downstream role of phytomelatonin in endogenous H2 control of LR formation. Consistently, extra H2 supply failed to influence the LR defective phenotypes in phytomelatonin synthetic mutants. Molecular evidence showed that the phytomelatonin-regulated auxin signaling network and cell-cycle regulation were associated with the AB/H2 control of LR branching. Also, AB and melatonin had little effect on LR branching in the presence of auxin synthetic inhibitors. Collectively, our integrated approaches show that supplying H2 via AB increases LR branching via phytomelatonin signaling. This finding might open the way for applying hydrogen storage materials to horticultural production.
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Affiliation(s)
- Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Shanshan Jin
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ziyu Liu
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Genmei Chen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Sheng Xu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
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Cheng Y, Li M, Xu P. Allelochemicals: A source for developing economically and environmentally friendly plant growth regulators. Biochem Biophys Res Commun 2024; 690:149248. [PMID: 37992526 DOI: 10.1016/j.bbrc.2023.149248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023]
Abstract
Allelochemicals are specific secondary metabolites that can exhibit autotoxicity by inhibiting the growth of the same plant species that produced them. These metabolites have been found to affect various physical processes during plant growth and development, including inhibition of seed germination, photosynthesis, respiration, root growth, and nutrient uptake, with diverse mechanisms involving cell destruction, oxidative homeostasis and photoinhibition. In some cases, allelochemicals can also have positive effects on plant growth and development. In addition to their ecological significance, allelochemicals also possess potential as plant growth regulators (PGRs) due to their extensive physiological effects. However, a comprehensive summary of the development and applications of allelochemicals as PGRs is currently lacking. In this review, we present an overview of the sources and categories of allelochemicals, discuss their effects and the underlying mechanisms on plant growth and development. We showcase numerous instances of key phytohormonal allelochemicals and non-phytohormonal allelochemicals, highlighting their potential as candidates for the development of PGRs. This review aims to provide a theoretical basis for the development of economical, safe and effective PGRs utilizing allelochemicals, and emphasizes the need for further research in this area.
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Affiliation(s)
- Yusu Cheng
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang, College of Life Sciences, China Jiliang University, Hangzhou, 310018, PR China.
| | - Mingxuan Li
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang, College of Life Sciences, China Jiliang University, Hangzhou, 310018, PR China.
| | - Pei Xu
- Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang, College of Life Sciences, China Jiliang University, Hangzhou, 310018, PR China.
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Rates ADB, Cesarino I. Pour some sugar on me: The diverse functions of phenylpropanoid glycosylation. JOURNAL OF PLANT PHYSIOLOGY 2023; 291:154138. [PMID: 38006622 DOI: 10.1016/j.jplph.2023.154138] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/06/2023] [Indexed: 11/27/2023]
Abstract
The phenylpropanoid metabolism is the source of a vast array of specialized metabolites that play diverse functions in plant growth and development and contribute to all aspects of plant interactions with their surrounding environment. These compounds protect plants from damaging ultraviolet radiation and reactive oxygen species, provide mechanical support for the plants to stand upright, and mediate plant-plant and plant-microorganism communications. The enormous metabolic diversity of phenylpropanoids is further expanded by chemical modifications known as "decorative reactions", including hydroxylation, methylation, glycosylation, and acylation. Among these modifications, glycosylation is the major driving force of phenylpropanoid structural diversification, also contributing to the expansion of their properties. Phenylpropanoid glycosylation is catalyzed by regioselective uridine diphosphate (UDP)-dependent glycosyltransferases (UGTs), whereas glycosyl hydrolases known as β-glucosidases are the major players in deglycosylation. In this article, we review how the glycosylation process affects key physicochemical properties of phenylpropanoids, such as molecular stability and solubility, as well as metabolite compartmentalization/storage and biological activity/toxicity. We also summarize the recent knowledge on the functional implications of glycosylation of different classes of phenylpropanoid compounds. A balance of glycosylation/deglycosylation might represent an essential molecular mechanism to regulate phenylpropanoid homeostasis, allowing plants to dynamically respond to diverse environmental signals.
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Affiliation(s)
- Arthur de Barros Rates
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, 05508-090, São Paulo, Brazil
| | - Igor Cesarino
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, 05508-090, São Paulo, Brazil; Synthetic and Systems Biology Center, InovaUSP, Avenida Professor Lucio Martins Rodrigues 370, 05508-020, São Paulo, Brazil.
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Bahmani R, Kim D, Modareszadeh M, Hwang S. Ethylene and ROS mediate root growth inhibition induced by the endocrine disruptor bisphenol A (BPA). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 205:108212. [PMID: 38008009 DOI: 10.1016/j.plaphy.2023.108212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/12/2023] [Accepted: 11/19/2023] [Indexed: 11/28/2023]
Abstract
Bisphenol A (BPA) functions as a detrimental substance that disrupts the endocrine system in animals while also impeding the growth and development of plants. In our previous study, we demonstrated that BPA hinders the growth of roots in Arabidopsis by diminishing cell division and elongation, which is ascribed to the increased accumulation and redistribution of auxin. Here, we examined the mediation of ROS and ethylene in BPA-induced auxin accumulation and root growth inhibition. BPA enhanced ROS levels, and ROS increased auxin contents but reduced cell division activity and the expression of EXPA8 involved in root elongation. ROS scavenger treatment reversed BPA-triggered root growth retardation, auxin accumulation, and cell division inhibition. In addition, BPA induced ethylene, and ethylene synthesis inhibitor treatment reversed BPA-triggered root growth retardation and auxin accumulation. Taken together, ROS and ethylene are involved in BPA-inhibited cell elongation and cell division by mediating auxin accumulation and redistribution.
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Affiliation(s)
- Ramin Bahmani
- Department of Molecular Biology, South Korea; Department of Bioindustry and Bioresource Engineering, South Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea
| | - DongGwan Kim
- Department of Molecular Biology, South Korea; Department of Bioindustry and Bioresource Engineering, South Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea
| | - Mahsa Modareszadeh
- Department of Molecular Biology, South Korea; Department of Bioindustry and Bioresource Engineering, South Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea
| | - Seongbin Hwang
- Department of Molecular Biology, South Korea; Department of Bioindustry and Bioresource Engineering, South Korea; Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea.
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Pinto M, Sousa B, Martins M, Pereira C, Soares C, Fidalgo F. Unveiling the efficacy of pre-emergent application of young Eucalyptus globulus leaves as a weed control strategy: Bridging macroscopic effects and cellular responses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 203:108010. [PMID: 37714024 DOI: 10.1016/j.plaphy.2023.108010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/17/2023] [Accepted: 09/05/2023] [Indexed: 09/17/2023]
Abstract
Allelopathy, the inhibition of neighbouring plant growth by certain plants, can be particularly useful if applied in a targeted way for weed management. So, this study aimed to assess and characterize the herbicidal activity of fresh and dried leaves from young Eucalyptus globulus Labill. trees applied as a soil amendment. For this, fresh and dried leaves (FL and DL, respectively) were incorporated into the soil at different concentrations (0, 1, 5, and 10% w/w), where Portulaca oleracea L. seeds were sown. After 5 weeks of exposure, results revealed that the soil incorporation of DL at 10% (w/w) presented the strongest herbicidal properties, inhibiting seed germination by 63% and inducing the loss of cell viability. To unravel the possible mode of action and the main targets at both cellular and subcellular levels, an in vitro experiment was performed. Purslane seeds were sown in a nutritive medium containing different dilutions of an aqueous extract prepared with dried eucalyptus leaves. After 5 days of exposure, germinated seedlings were processed for transmission electron microscopy and histological analyses as well as for reactive oxygen species (ROS) in vivo detection by confocal laser scanning microscopy. Results revealed that the allelochemical release from DL induced ROS overproduction, resulting in the loss of cell integrity and organization, which was characterized by damage to several cellular sub-structures, along with enhanced accumulation of lipid droplets. Overall, the incorporation of DL into the soil can represent a sustainable alternative to reduce synthetic herbicide application and subsequent environmental contamination.
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Affiliation(s)
- Mafalda Pinto
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal; CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal; Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal.
| | - Bruno Sousa
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Cláudia Pereira
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal.
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Aguilera N, Guedes LM, Alvarado U, Sáez-Carrillo K. Teline monspessulana Can Harm the Chilean Native Tree Nothofagus obliqua: Effects on Germination and Initial Growth. PLANTS (BASEL, SWITZERLAND) 2023; 12:3419. [PMID: 37836159 PMCID: PMC10575075 DOI: 10.3390/plants12193419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
Teline monspessulana is highly invasive in several countries around the world. This species pressurizes and displaces several native and endemic tree species in south-central Chile such as Nothofagus obliqua, the native species of greatest timber interest. We determined the effects induced by allelochemical stress of T. monspessulana on N. obliqua germination and initial growth. Germination was evaluated under in vitro conditions and in natural substrate obtained from sites inhabited by N. obliqua and from nearby areas invaded by T. monspessulana. Controls irrigated with tap water and treatments with aqueous extracts of aerial organs of the invasive species were used. Morphometric and morphological variables were evaluated, and the composition of alkaloids and phenols from the plant organs used for the aqueous extracts was determined. The substrates were also chemically characterized. Allelochemicals synthesized by T. monspessulana caused germination and growth inhibition and tissue-level alterations, as well as leaf and root damage in N. obliqua seedlings. In the aerial organs of T. monspessulana, the quinolizidine alkaloids aphylline, caulophylline, anagyrine, and sophocarpine were mainly detected. In addition, 21 phenolic compounds were identified, including gallic acid, vanillic acid, chlorogenic acid, p-coumaric acid, and quercetin. The phytotoxic potential of T. monspessulana can compromise the natural multiplication of N. obliqua and its survival from its first phenological stages. This interdisciplinary study model facilitated the clarification of the plant-plant relationship mediated by allelochemicals. The model can be replicated to investigate other interspecific interactions between invasive and native species.
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Affiliation(s)
- Narciso Aguilera
- Laboratorio de Semioquímica Aplicada, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Casilla 160-C, Concepción 4030000, CP, Chile; (L.M.G.); (U.A.)
| | - Lubia M. Guedes
- Laboratorio de Semioquímica Aplicada, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Casilla 160-C, Concepción 4030000, CP, Chile; (L.M.G.); (U.A.)
| | - Ulises Alvarado
- Laboratorio de Semioquímica Aplicada, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Casilla 160-C, Concepción 4030000, CP, Chile; (L.M.G.); (U.A.)
| | - Katia Sáez-Carrillo
- Departamento de Estadística, Facultad de Ciencias Físicas y Matemáticas, Universidad de Concepción, Casilla 160-C, Concepción 4030000, CP, Chile;
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Šoln K, Žnidaršič N, Klemenčič M, Koce JD. Fallopia japonica and Fallopia × bohemica extracts cause ultrastructural and biochemical changes in root tips of radish seedlings. PHYSIOLOGIA PLANTARUM 2023; 175:e14032. [PMID: 37882300 DOI: 10.1111/ppl.14032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/25/2023] [Accepted: 09/06/2023] [Indexed: 10/27/2023]
Abstract
Japanese knotweed (Fallopia japonica) and Bohemian knotweed (Fallopia × bohemica) are invasive plants that use allelopathy as an additional mechanism for colonization of the new habitat. Allelochemicals affect the growth of roots of neighboring plants. In the present study, we analyze the early changes associated with the inhibited root growth of radish seedlings exposed to aqueous extracts of knotweed rhizomes for 3 days. Here, we show that cells in the root cap treated with the knotweed extracts exhibited reduced cell length and displayed several ultrastructural changes, including the increased abundance of dilated ER cisternae filled with electron-dense material (ER bodies) and the accumulation of dense inclusions. Moreover, mitochondrial damage was exhibited in the root cap and the meristem zone compared to the non-treated radish seedlings. Furthermore, malfunction of the intracellular redox balance system was detected as the increased total antioxidative capacity. We also detected increased metacaspase-like proteolytic activities and, in the case of 10% extract of F. japonica, increased caspase-like proteolytic activities. These ultrastructural and biochemical effects could be the reason for the more than 60% shorter root length of treated radish seedlings compared to controls.
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Affiliation(s)
- Katarina Šoln
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
- Department of Biodiversity, Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Koper, Slovenia
| | - Nada Žnidaršič
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Marina Klemenčič
- Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
| | - Jasna Dolenc Koce
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Wang Y, Zhao Y, Dong B, Wang D, Hao J, Jia X, Zhao Y, Nian Y, Zhou H. The Aqueous Extract of Brassica oleracea L. Exerts Phytotoxicity by Modulating H 2O 2 and O 2- Levels, Antioxidant Enzyme Activity and Phytohormone Levels. PLANTS (BASEL, SWITZERLAND) 2023; 12:3086. [PMID: 37687333 PMCID: PMC10490512 DOI: 10.3390/plants12173086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/11/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023]
Abstract
Allelopathic interactions between plants serve as powerful tools for weed control. Despite the increasing understanding of the allelopathic mechanisms between different plant species, the inhibitory effects of B. oleracea on weed growth remain poorly understood. In this study, we conducted experiments to demonstrate that B. oleracea extract can suppress the germination of Panicum miliaceum L.varruderale Kit. seeds as well as of the roots, shoots and hypocotyl elongation of P. miliaceum seedlings. Furthermore, we observed that B. oleracea extract reduced the levels of hydrogen peroxide and superoxide anion in the roots while increasing the activities of catalase and ascorbate peroxidase. In the shoots, B. oleracea extract enhanced the activities of superoxide dismutase and peroxidase. Moreover, the use of the extract led to an increase in the content of phytohormones (indole-3-acetic acid, indole-3-acetaldehyde, methyl indole-3-acetate, N6-isoPentenyladenosine, dihydrozeatin-7-glucoside, abscisic acid and abscisic acid glucose ester) in P. miliaceum seedlings. Interestingly, the aqueous extract contained auxins and their analogs, which inhibited the germination and growth of P. miliaceum. This may contribute to the mechanism of the B. oleracea-extract-induced suppression of P. miliaceum growth.
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Affiliation(s)
- Yu Wang
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010020, China; (Y.W.)
| | - Yuanzheng Zhao
- Institute of Plant Protection, Inner Mongolia Academy of Agricultural & Husbandry Sciences, Hohhot 010031, China
| | - Baozhu Dong
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010020, China; (Y.W.)
| | - Dong Wang
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010020, China; (Y.W.)
| | - Jianxiu Hao
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010020, China; (Y.W.)
| | - Xinyu Jia
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010020, China; (Y.W.)
| | - Yuxi Zhao
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010020, China; (Y.W.)
| | - Yin Nian
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Hongyou Zhou
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot 010020, China; (Y.W.)
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12
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Tu Y, Shen J, Peng Z, Xu Y, Li Z, Liang J, Wei Q, Zhao H, Huang J. Biochar-Dual Oxidant Composite Particles Alleviate the Oxidative Stress of Phenolic Acid on Tomato Seed Germination. Antioxidants (Basel) 2023; 12:antiox12040910. [PMID: 37107285 PMCID: PMC10136075 DOI: 10.3390/antiox12040910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Phenolic acid is a well-known allelochemical, but also a pollutant in soil and water impeding crop production. Biochar is a multifunctional material widely used to mitigate the phenolic acids allelopathic effect. However, phenolic acid absorbed by biochar can still be released. In order to improve the removal efficiency of phenolic acids by biochar, the biochar-dual oxidant (BDO) composite particles were synthesized in this study, and the underlying mechanism of the BDO particles in ameliorating p-coumaric acid (p-CA) oxidative damage to tomato seed germination was revealed. Upon p-CA treatment, the BDO composite particles application increased the radical length, radical surface area, and germination index by 95.0%, 52.8%, and 114.6%, respectively. Compared to using biochar or oxidants alone, the BDO particles addition resulted in a higher removal rate of p-CA and produced more O2•-, HO•, SO4•- and 1O2 radicals via autocatalytic action, suggesting that BDO particles removed phenolic acid by both adsorption and free radical oxidation. The addition of BDO particles maintained the levels of the antioxidant enzyme activity close to the control, and reduced the malondialdehyde and H2O2 by 49.7% and 49.5%, compared to the p-CA treatment. Integrative metabolomic and transcriptomic analyses revealed that 14 key metabolites and 62 genes were involved in phenylalanine and linoleic acid metabolism, which increased dramatically under p-CA stress but down-regulated with the addition of BDO particles. This study proved that the use of BDO composite particles could alleviate the oxidative stress of phenolic acid on tomato seeds. The findings will provide unprecedented insights into the application and mechanism of such composite particles as continuous cropping soil conditioners.
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Affiliation(s)
- Yuting Tu
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Jinchun Shen
- College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Zhiping Peng
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Yanggui Xu
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Zhuxian Li
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Jianyi Liang
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Qiufang Wei
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Hongbo Zhao
- College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Jichuan Huang
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
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13
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Kong J, Yin K, Zhang C, Liu X, Yang N. PLDδ, auxin, and H 2O 2 mediated the allelopathic effect of cycloastragenol on root growth in Arabidopsis. JOURNAL OF PLANT PHYSIOLOGY 2023; 282:153929. [PMID: 36724592 DOI: 10.1016/j.jplph.2023.153929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/06/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Cycloastragenol (CAG) is a tetra-cyclic triterpenoid allelochemical. It has been widely studied in animals but rarely in plants. Here, we reported that a model allelochemical CAG inhibited primary root elongation of Arabidopsis by reducing the sizes of both the meristem and elongation zones. Phospholipase Dδ(PLDδ), hydrogen peroxide (H2O2), and auxin affected this process. After treatment with CAG, the expression of PLDδ and the activity of the Phospholipase D(PLD) enzyme increased in WT. Mutants analysis demonstrated that PLDδ negatively regulated the primary root elongation by CAG treatment. CAG treatment stimulated the accumulation of H2O2 in roots. The production of H2O2 was derived from cell wall peroxidase. Mutants analysis showed that PLDδ positively regulated the production of H2O2 by CAG treatment. CAG also decreased auxin content in the root tip by affecting the expression of auxin synthesis-related genes. PLDδ was involved in the auxin reduction mediated by CAG, but H2O2 did not participate in this process. In conclusion, PLDδ, auxin, and H2O2 mediated the inhibition of primary root growth by CAG in Arabidopsis.
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Affiliation(s)
- Juantao Kong
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Kai Yin
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Cuixia Zhang
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Xuan Liu
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China
| | - Ning Yang
- College of Life Science, Northwest Normal University, Lanzhou, 730070, China.
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14
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Parveen N, Kandhol N, Sharma S, Singh VP, Chauhan DK, Ludwig-Müller J, Corpas FJ, Tripathi DK. Auxin Crosstalk with Reactive Oxygen and Nitrogen Species in Plant Development and Abiotic Stress. PLANT & CELL PHYSIOLOGY 2023; 63:1814-1825. [PMID: 36208156 DOI: 10.1093/pcp/pcac138] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 09/26/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
The phytohormone auxin acts as an important signaling molecule having regulatory functions during the growth and development of plants. Reactive oxygen species (ROS) are also known to perform signaling functions at low concentrations; however, over-accumulation of ROS due to various environmental stresses damages the biomolecules and cell structures and leads to cell death, and therefore, it can be said that ROS act as a double-edged sword. Nitric oxide (NO), a gaseous signaling molecule, performs a wide range of favorable roles in plants. NO displays its positive role in photomorphogenesis, root growth, leaf expansion, seed germination, stomatal closure, senescence, fruit maturation, mitochondrial activity and metabolism of iron. Studies have revealed the early existence of these crucial molecules during evolution. Moreover, auxin, ROS and NO together show their involvement in various developmental processes and abiotic stress tolerance. Redox signaling is a primary response during exposure of plants to stresses and shows a link with auxin signaling. This review provides updated information related to crosstalk between auxin, ROS and NO starting from their evolution during early Earth periods and their interaction in plant growth and developmental processes as well as in the case of abiotic stresses to plants.
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Affiliation(s)
- Nishat Parveen
- Department of Botany, D D Pant Interdisciplinary Research Laboratory, University of Allahabad, Prayagraj-211002, India
| | - Nidhi Kandhol
- Crop Nanobiology and Molecular Stress Physiology Lab, Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Sector-125, Noida 201313, India
| | - Shivesh Sharma
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad, Prayagraj-211004, India
| | - Vijay Pratap Singh
- Department of Botany, Plant Physiology Laboratory, CMP, Degree Collage, University of Allahabad, Prayagraj-211002, India
| | - Devendra Kumar Chauhan
- Department of Botany, D D Pant Interdisciplinary Research Laboratory, University of Allahabad, Prayagraj-211002, India
| | - Jutta Ludwig-Müller
- Department of Biology, Technische Universität Dresden, Dresden 01062, Germany
| | - Francisco J Corpas
- Department of Biochemistry, Cell and Molecular Biology, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), C/Professor Albareda, 1, Granada 18008, Spain
| | - Durgesh Kumar Tripathi
- Crop Nanobiology and Molecular Stress Physiology Lab, Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Sector-125, Noida 201313, India
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15
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López-González D, Ferradás Y, Araniti F, Graña E, Hermida-Ramón JM, González MV, Teijeira M, Rey M, Reigosa MJ, Sánchez-Moreiras AM. Trans-cinnamaldehyde-related overproduction of benzoic acid and oxidative stress on Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2023; 14:1157309. [PMID: 37152151 PMCID: PMC10160683 DOI: 10.3389/fpls.2023.1157309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/03/2023] [Indexed: 05/09/2023]
Abstract
Introduction Trans-cinnamaldehyde is a specialised metabolite that naturally occurs in plants of the Lauraceae family. This study focused on the phytotoxic effects of this compound on the morphology and metabolism of Arabidopsis thaliana seedlings. Material and methods To evaluate the phytotoxicity of trans-cinnamaldehyde, a dose-response curve was first performed for the root growth process in order to calculate the reference inhibitory concentrations IC50 and IC80 (trans-cinnamaldehyde concentrations inducing a 50% and 80% inhibition, respectively). Subsequently, the structure and ultrastructure of the roots treated with the compound were analysed by light and electron microscopy. Based on these results, the following assays were carried out to in depth study the possible mode of action of the compound: antiauxinic PCIB reversion bioassay, determination of mitochondrial membrane potential, ROS detection, lipid peroxidation content, hormone quantification, in silico studies and gene expression of ALDH enzymes. Results Trans-cinnamaldehyde IC50 and IC80 values were as low as 46 and 87 μM, reducing the root growth and inducing the occurrence of adventitious roots. At the ultrastructural level, the compound caused alterations to the mitochondria, which were confirmed by detection of the mitochondrial membrane potential. The morphology observed after the treatment (i.e., appearance of adventitious roots) suggested a possible hormonal mismatch at the auxin level, which was confirmed after PCIB bioassay and hormone quantification by GC-MS. The addition of the compound caused an increase in benzoic, salicylic and indoleacetic acid content, which was related to the increased gene expression of the aldehyde dehydrogenase enzymes that can drive the conversion of trans-cinnamaldehyde to cinnamic acid. Also, an increase of ROS was also observed in treated roots. The enzyme-compound interaction was shown to be stable over time by docking and molecular dynamics assays. Discussion The aldehyde dehydrogenases could drive the conversion of trans-cinnamaldehyde to cinnamic acid, increasing the levels of benzoic, salicylic and indoleacetic acids and causing the oxidative stress symptoms observed in the treated seedlings. This would result into growth and development inhibition of the trans-cinnamaldehyde-treated seedlings and ultimately in their programmed-cell-death.
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Affiliation(s)
- David López-González
- Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Bioloxía. Universidade de Vigo, Vigo, Spain
- *Correspondence: David López-González, ; Adela M. Sánchez-Moreiras,
| | - Yolanda Ferradás
- Instituto de Ciencias de la Vid y del Vino, Consejo Superior de Investigaciones Científicas, Universidad de La Rioja, La Rioja, Spain
- Departamento de Biología Funcional, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Fabrizio Araniti
- Dipartamento di Science Agrarie e Ambientali – Produzione, Territorio, Agroenergia, Università Statale di Milano, Milano, Spain
| | - Elisa Graña
- Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Bioloxía. Universidade de Vigo, Vigo, Spain
| | - José M. Hermida-Ramón
- Departamento de Química Física, Facultade de Química, Universidade de Vigo, Vigo, Spain
| | - María Victoria González
- Departamento de Biología Funcional, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Marta Teijeira
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, Vigo, Spain
- Instituto de Investigación Sanitaria Galicia Sur, Hospital Álvaro Cunqueiro, Vigo, Spain
| | - Manuel Rey
- Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Bioloxía. Universidade de Vigo, Vigo, Spain
| | - Manuel J. Reigosa
- Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Bioloxía. Universidade de Vigo, Vigo, Spain
| | - Adela M. Sánchez-Moreiras
- Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Bioloxía. Universidade de Vigo, Vigo, Spain
- *Correspondence: David López-González, ; Adela M. Sánchez-Moreiras,
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16
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Wang G, Ren Y, Bai X, Su Y, Han J. Contributions of Beneficial Microorganisms in Soil Remediation and Quality Improvement of Medicinal Plants. PLANTS (BASEL, SWITZERLAND) 2022; 11:3200. [PMID: 36501240 PMCID: PMC9740990 DOI: 10.3390/plants11233200] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/15/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
Medicinal plants (MPs) are important resources widely used in the treatment and prevention of diseases and have attracted much attention owing to their significant antiviral, anti-inflammatory, antioxidant and other activities. However, soil degradation, caused by continuous cropping, excessive chemical fertilizers and pesticide residues and heavy metal contamination, seriously restricts the growth and quality formation of MPs. Microorganisms, as the major biota in soil, play a critical role in the restoration of the land ecosystem. Rhizosphere microecology directly or indirectly affects the growth and development, metabolic regulation and active ingredient accumulation of MPs. Microbial resources, with the advantages of economic efficiency, harmless to environment and non-toxic to organisms, have been recommended as a promising alternative to conventional fertilizers and pesticides. The introduction of beneficial microbes promotes the adaptability of MPs to adversity stress by enhancing soil fertility, inhibiting pathogens and inducing systemic resistance. On the other hand, it can improve the medicinal quality by removing soil pollutants, reducing the absorption and accumulation of harmful substances and regulating the synthesis of secondary metabolites. The ecological and economic benefits of the soil microbiome in agricultural practices are increasingly recognized, but the current understanding of the interaction between soil conditions, root exudates and microbial communities and the mechanism of rhizosphere microecology affecting the secondary metabolism of MPs is still quite limited. More research is needed to investigate the effects of the microbiome on the growth and quality of different medicinal species. Therefore, the present review summarizes the main soil issues in medicinal plant cultivation, the functions of microbes in soil remediation and plant growth promotion and the potential mechanism to further guide the use of microbial resources to promote the ecological cultivation and sustainable development of MPs.
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17
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Yan W, Cao S, Liu X, Yao G, Yu J, Zhang J, Bian T, Yu W, Wu Y. Combined physiological and transcriptome analysis revealed the response mechanism of Pogostemon cablin roots to p-hydroxybenzoic acid. FRONTIERS IN PLANT SCIENCE 2022; 13:980745. [PMID: 36226287 PMCID: PMC9549242 DOI: 10.3389/fpls.2022.980745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/22/2022] [Indexed: 06/01/2023]
Abstract
Pogostemon cablin (patchouli) cultivation is challenged by serious soil sickness, of which autotoxins accumulation is a major cause. p-hydroxybenzoic acid (p-HBA) is one of the main autotoxins of patchouli. However, the molecular mechanism underlying the response of patchouli to p-HBA remains unclear. In this study, RNA-sequencing combined with physiological analysis was used to monitor the dynamic transcriptomic and physiological changes in patchouli seedlings 0, 6, 12, 24, 48, and 96 h after p-HBA treatment. p-HBA stress inhibited root biomass accumulation, induced excessive hydrogen peroxide accumulation and lipid peroxidation, and activated most antioxidant enzymes. Compared with that of the control, the osmotic adjustment substance content was elevated with treatment. Subsequently, 15,532, 8,217, 8,946, 2,489, and 5,843 differentially expressed genes (DEGs) at 6, 12, 24, 48, and 96 h after p-HBA treatment, respectively, were identified in patchouli roots. GO functional enrichment analysis showed that the DEGs were enriched mainly in plasma membrane, defense response, response to chitin, DNA-binding transcription factor activity and abscisic acid-activated signaling pathway. The upregulated genes were involved in glycolysis/gluconeogenesis, cysteine and methionine metabolism, starch and sucrose metabolism, biosynthesis of unsaturated fatty acids, and linoleic acid metabolism. Genes associated with MAPK signaling pathway-plant, plant-pathogen interaction, plant hormone signal transduction were downregulated with p-HBA treatment. These pathways are related to root browning and rotting, leading to plant death.
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Affiliation(s)
- Wuping Yan
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
- School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang, China
| | - Shijia Cao
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
| | - Xiaofeng Liu
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
| | - Guanglong Yao
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
| | - Jing Yu
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
| | - Junfeng Zhang
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
| | - Tengfei Bian
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, United States
| | - Wengang Yu
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
| | - Yougen Wu
- College of Tropical Crops, Hainan University, Haikou, China
- College of Horticulture, Hainan University, Haikou, China
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China
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18
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Šoln K, Klemenčič M, Koce JD. Plant cell responses to allelopathy: from oxidative stress to programmed cell death. PROTOPLASMA 2022; 259:1111-1124. [PMID: 34993622 DOI: 10.1007/s00709-021-01729-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Allelopathy is a plant-plant interaction in which one plant releases biologically active compounds that have negative effects on the fitness of the target plant. The most pronounced effects are inhibition of seed germination and growth of neighboring plants. The roots of these plants are in contact with the allelochemicals released into the soil, as the primary target of the allelopathic action. To date, the best documented allelopathic activities relate to some weeds and invasive alien plants that show rapid spread and successful growth. A better understanding of the mechanisms of allelopathy will help to improve crop production and to manage and prevent plant invasions. At the cellular level, allelochemicals induce a burst of reactive oxygen species in the target plants, which leads to oxidative stress, and can promote programmed cell death. Lipid peroxidation and cell membrane changes, protein modifications, and increased protease activities are the early signs of cell damage. When enzymatic and nonenzymatic antioxidants cannot scavenge reactive oxidants, this can result in hydrolytic or necrotic degradation of the protoplast. Cell organelles then lose their integrity and function. In roots, the structure and activity of the apical meristem are changed, which affects root growth and water absorption. Such allelopathically active compounds might thus be applied to control and manage weeds and invasive plants in a more sustainable way, to reduce chemical pollution.
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Affiliation(s)
- Katarina Šoln
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Marina Klemenčič
- Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000, Ljubljana, Slovenia
| | - Jasna Dolenc Koce
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia.
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19
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Ximenez GR, Bianchin M, Carmona JMP, de Oliveira SM, Ferrarese-Filho O, Pastorini LH. Reduction of Weed Growth under the Influence of Extracts and Metabolites Isolated from Miconia spp. Molecules 2022; 27:5356. [PMID: 36080124 PMCID: PMC9458153 DOI: 10.3390/molecules27175356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/17/2022] [Accepted: 07/19/2022] [Indexed: 11/24/2022] Open
Abstract
Weeds pose a problem, infesting areas and imposing competition and harvesting difficulties in agricultural systems. Studies that provide the use of alternative methods for weed control, in order to minimize negative impacts on the environment, have intensified. Native flora represents a source of unexplored metabolites with multiple applications, such as bioherbicides. Therefore, we aimed to carry out a preliminary phytochemical analysis of crude extracts and fractions of Miconia auricoma and M. ligustroides and to evaluate these and the isolated metabolites phytotoxicity on the growth of the target species. The growth bioassays were conducted with Petri dishes with lettuce, morning glory, and sourgrass seeds incubated in germination chambers. Phytochemical analysis revealed the presence of flavonoids, isolated myricetin, and a mixture of quercetin and myricetin. The results showed that seedling growth was affected in a dose-dependent manner, with the root most affected and the seedlings of the lettuce, morning glory, and sourgrass as the most sensitive species, respectively. Chloroform fractions and myricetin were the most inhibitory bioassays evaluated. The seedlings showed structural changes, such as yellowing, nonexpanded cotyledons, and less branched roots. These results indicate the phytotoxic potential of Miconia allelochemicals, since there was the appearance of abnormal seedlings and growth reduction.
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Affiliation(s)
- Gabriel Rezende Ximenez
- Programa de Pós-Graduação em Biologia Comparada, Centro de Ciências Biológicas, Departamento de Biologia, Universidade Estadual de Maringá, Avenida Colombo 5790, Maringá 87020-900, Brazil
| | - Mirelli Bianchin
- Programa de Pós-Graduação em Química, Centro de Ciências Exatas, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo 5790, Maringá 87020-900, Brazil
| | - João Marcos Parolo Carmona
- Graduação em Biotecnologia, Centro de Ciências Biológicas, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Avenida Colombo 5790, Maringá 87020-900, Brazil
| | - Silvana Maria de Oliveira
- Programa de Pós-Graduação em Química, Centro de Ciências Exatas, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo 5790, Maringá 87020-900, Brazil
| | - Osvaldo Ferrarese-Filho
- Programa de Pós-Graduação em Ciências Biológicas, Centro de Ciências Biológicas, Departamento de Biologia Celular e Genética, Universidade Estadual de Maringá, Avenida Colombo 5790, Maringá 87020-900, Brazil
| | - Lindamir Hernandez Pastorini
- Programa de Pós-Graduação em Biologia Comparada, Centro de Ciências Biológicas, Departamento de Biologia, Universidade Estadual de Maringá, Avenida Colombo 5790, Maringá 87020-900, Brazil
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20
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Soriano G, Siciliano A, Fernández-Aparicio M, Cala Peralta A, Masi M, Moreno-Robles A, Guida M, Cimmino A. Iridoid Glycosides Isolated from Bellardia trixago Identified as Inhibitors of Orobanche cumana Radicle Growth. Toxins (Basel) 2022; 14:toxins14080559. [PMID: 36006221 PMCID: PMC9414233 DOI: 10.3390/toxins14080559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/13/2022] [Accepted: 08/14/2022] [Indexed: 01/16/2023] Open
Abstract
Orobanche cumana is an obligate holoparasitic plant with noxious effects in sunflower crops. Bellardia trixago is a facultative hemiparasitic plant that infects ruderal plants without noxious significance in agriculture and is known to produce a wide spectrum of bioactive metabolites. The objective of this study was to evaluate the allelopathic effects of B. trixago on the growth of O. cumana seedlings. Three different extracts using solvents of increasing polarity (n-hexane, dichloromethane and ethyl acetate) were prepared from the flowers, aerial green organs and roots of two populations, a white-flowered and a yellow-flowered population of B. trixago, both collected in southern Spain. Each extract was studied using allelopathic screenings on O. cumana which resulted in the identification of allelopathic activity of the ethyl acetate extracts against Orobanche radicles. Five iridoid glycosides were isolated together with benzoic acid from the ethyl acetate extract of aerial green organs by bio-guided purification. These compounds were identified as bartsioside, melampyroside, mussaenoside, gardoside methyl ester and aucubin. Among them, melampyroside was found to be the most abundant constituent in the extract (44.3% w/w), as well as the most phytotoxic iridoid on O. cumana radicle, showing a 72.6% inhibition of radicle growth. This activity of melampyroside was significantly high when compared with the inhibitory activity of benzoic acid (25.9%), a phenolic acid with known allelopathic activity against weeds. The ecotoxicological profile of melampyroside was evaluated using organisms representing different trophic levels of the aquatic and terrestrial ecosystems, namely producers (green freshwater algae Raphidocelis subcapitata and macrophyte Lepidium sativum), consumers (water flea Daphnia magna and nematode Caenorhabditis elegans) and decomposers (bacterium Aliivibrio fischeri). The ecotoxicity of melampyroside differed significantly depending on the test organism showing the highest toxicity to daphnia, nematodes and bacteria, and a lower toxicity to algae and macrophytes. The findings of the present study may provide useful information for the generation of green alternatives to synthetic herbicides for the control of O. cumana.
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Affiliation(s)
- Gabriele Soriano
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy
| | - Antonietta Siciliano
- Department of Biology, University of Naples Federico II, Complesso Universitario Monte Sant’Angelo, Via Cintia 4, 80126 Naples, Italy
| | - Mónica Fernández-Aparicio
- Department of Plant Breeding, Institute for Sustainable Agriculture (IAS), CSIC, Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain
- Correspondence: (M.F.-A.); (M.M.)
| | - Antonio Cala Peralta
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy
- Allelopathy Group, Department of Organic Chemistry, School of Science, Institute of Biomolecules (INBIO), University of Cádiz, C/República Saharaui 7, 11510 Cádiz, Spain
| | - Marco Masi
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy
- Correspondence: (M.F.-A.); (M.M.)
| | - Antonio Moreno-Robles
- Department of Electronics and Computer Engineering, University of Córdoba, Campus de Rabanales, 14071 Córdoba, Spain
| | - Marco Guida
- Department of Biology, University of Naples Federico II, Complesso Universitario Monte Sant’Angelo, Via Cintia 4, 80126 Naples, Italy
| | - Alessio Cimmino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy
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21
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Xin A, Jin H, Yang X, Guan J, Hui H, Liu H, Cui Z, Dun Z, Qin B. Allelochemicals from the Rhizosphere Soil of Potato ( Solanum tuberosum L.) and Their Interactions with the Soilborne Pathogens. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11151934. [PMID: 35893638 PMCID: PMC9331876 DOI: 10.3390/plants11151934] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/09/2022] [Accepted: 07/14/2022] [Indexed: 05/13/2023]
Abstract
To reveal the allelopathic effects of potato, seven compounds were isolated from the rhizosphere soil: 7-methoxycoumarin (1), palmitic acid (2), caffeic acid (3), chlorogenic acid (4), quercetin dehydrate (5), quercitrin (6), and rutin (7). Bioassays showed that compounds 1, 2, 4, and 6 had inhibitory effects on the growth of L. sativa and tissue culture seedlings of potato. The existence of the allelochemicals was confirmed by HPLC, and their contents were quantified with a total concentration of 9.02 μg/g in the rhizosphere soil of replanted potato. Approaches on the interactions of the allelochemicals and pathogens of potato including A. solani, B. cinerea, F. solani, F. oxysporum, C. coccodes, and V. dahlia revealed that compound 1 had inhibitory effects but compounds 2-4 promoted the colony growth of the pathogens. These findings demonstrated that the autotoxic allelopathy and enhancement of the pathogens caused by the accumulation of the allelochemicals in the continuously cropped soil should be one of the main reasons for the replant problems of potato.
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Affiliation(s)
- Aiyi Xin
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; (A.X.); (H.J.); (X.Y.); (H.H.); (H.L.)
- School of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang 621000, China
| | - Hui Jin
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; (A.X.); (H.J.); (X.Y.); (H.H.); (H.L.)
| | - Xiaoyan Yang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; (A.X.); (H.J.); (X.Y.); (H.H.); (H.L.)
| | - Jinfeng Guan
- Institute for Food and Drug Control, Tongliao City, Inner Mongolia Autonomous Region, Tongliao 028000, China;
| | - Heping Hui
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; (A.X.); (H.J.); (X.Y.); (H.H.); (H.L.)
| | - Haoyue Liu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; (A.X.); (H.J.); (X.Y.); (H.H.); (H.L.)
| | - Zengtuan Cui
- Cultivated Land Quality Construction and Management Station of Gansu Province, Lanzhou 730030, China; (Z.C.); (Z.D.)
| | - Zhiheng Dun
- Cultivated Land Quality Construction and Management Station of Gansu Province, Lanzhou 730030, China; (Z.C.); (Z.D.)
| | - Bo Qin
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; (A.X.); (H.J.); (X.Y.); (H.H.); (H.L.)
- Correspondence: ; Tel.: +86-931-4968371; Fax: +86-931-4968019
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22
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Smailagić D, Banjac N, Ninković S, Savić J, Ćosić T, Pěnčík A, Ćalić D, Bogdanović M, Trajković M, Stanišić M. New Insights Into the Activity of Apple Dihydrochalcone Phloretin: Disturbance of Auxin Homeostasis as Physiological Basis of Phloretin Phytotoxic Action. FRONTIERS IN PLANT SCIENCE 2022; 13:875528. [PMID: 35873993 PMCID: PMC9302884 DOI: 10.3389/fpls.2022.875528] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
Apple species are the unique naturally rich source of dihydrochalcones, phenolic compounds with an elusive role in planta, but suggested auto-allelochemical features related to "apple replant disease" (ARD). Our aim was to elucidate the physiological basis of the phytotoxic action of dihydrochalcone phloretin in the model plant Arabidopsis and to promote phloretin as a new prospective eco-friendly phytotoxic compound. Phloretin treatment induced a significant dose-dependent growth retardation and severe morphological abnormalities and agravitropic behavior in Arabidopsis seedlings. Histological examination revealed a reduced starch content in the columella cells and a serious disturbance in root architecture, which resulted in the reduction in length of meristematic and elongation zones. Significantly disturbed auxin metabolome profile in roots with a particularly increased content of IAA accumulated in the lateral parts of the root apex, accompanied by changes in the expression of auxin biosynthetic and transport genes, especially PIN1, PIN3, PIN7, and ABCB1, indicates the role of auxin in physiological basis of phloretin-induced growth retardation. The results reveal a disturbance of auxin homeostasis as the main mechanism of phytotoxic action of phloretin. This mechanism makes phloretin a prospective candidate for an eco-friendly bioherbicide and paves the way for further research of phloretin role in ARD.
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Affiliation(s)
- Dijana Smailagić
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Nevena Banjac
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Slavica Ninković
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jelena Savić
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Tatjana Ćosić
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Aleš Pěnčík
- Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, The Czech Academy of Sciences, Olomouc, Czechia
| | - Dušica Ćalić
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Milica Bogdanović
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Milena Trajković
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Mariana Stanišić
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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23
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The Phytotoxin Myrigalone A Triggers a Phased Detoxification Programme and Inhibits Lepidium sativum Seed Germination via Multiple Mechanisms including Interference with Auxin Homeostasis. Int J Mol Sci 2022; 23:ijms23094618. [PMID: 35563008 PMCID: PMC9104956 DOI: 10.3390/ijms23094618] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 02/01/2023] Open
Abstract
Molecular responses of plants to natural phytotoxins comprise more general and compound-specific mechanisms. How phytotoxic chalcones and other flavonoids inhibit seedling growth was widely studied, but how they interfere with seed germination is largely unknown. The dihydrochalcone and putative allelochemical myrigalone A (MyA) inhibits seed germination and seedling growth. Transcriptome (RNAseq) and hormone analyses of Lepidium sativum seed responses to MyA were compared to other bioactive and inactive compounds. MyA treatment of imbibed seeds triggered the phased induction of a detoxification programme, altered gibberellin, cis-(+)-12-oxophytodienoic acid and jasmonate metabolism, and affected the expression of hormone transporter genes. The MyA-mediated inhibition involved interference with the antioxidant system, oxidative signalling, aquaporins and water uptake, but not uncoupling of oxidative phosphorylation or p-hydroxyphenylpyruvate dioxygenase expression/activity. MyA specifically affected the expression of auxin-related signalling genes, and various transporter genes, including for auxin transport (PIN7, ABCG37, ABCG4, WAT1). Responses to auxin-specific inhibitors further supported the conclusion that MyA interferes with auxin homeostasis during seed germination. Comparative analysis of MyA and other phytotoxins revealed differences in the specific regulatory mechanisms and auxin transporter genes targeted to interfere with auxin homestasis. We conclude that MyA exerts its phytotoxic activity by multiple auxin-dependent and independent molecular mechanisms.
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24
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Inuloxin A Inhibits Seedling Growth and Affects Redox System of Lycopersicon esculentum Mill. and Lepidium sativum L. Biomolecules 2022; 12:biom12020302. [PMID: 35204800 PMCID: PMC8869190 DOI: 10.3390/biom12020302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/04/2022] [Accepted: 02/10/2022] [Indexed: 11/17/2022] Open
Abstract
Allelochemicals are considered an environment-friendly and promising alternative for weed management, although much effort is still needed for understanding their mode of action and then promoting their use in plant allelopathy management practices. Here, we report that Inuloxin A (InA), an allelochemical isolated from Dittrichia viscosa, inhibited root elongation and growth of seedlings of Lycopersicon esculentum and Lepidium sativum at the highest concentrations tested. InA-induced antioxidant responses in the seedlings were investigated by analysing the contents of glutathione (GSH) and ascorbate (ASC), and their oxidized forms, dehydroascorbate (DHA), and glutathione disulphide (GSSG), as well as the redox state of thiol-containing proteins. An increase in ASC, DHA, and GSH levels at high concentrations of InA, after 3 and 6 days, were observed. Moreover, the ASC/DHA + ASC and GSH/GSSG + GSH ratios showed a shift towards the oxidized form. Our study provides the first insight into how the cell redox system responds and adapts to InA phytotoxicity, providing a framework for further molecular studies.
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25
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Cheng J, Zhou C, Xie Y, Wang M, Zhou C, Li X, Du Y, Lu F. A new method for simultaneous determination of 14 phenolic acids in agricultural soils by multiwavelength HPLC-PDA analysis. RSC Adv 2022; 12:14939-14944. [PMID: 35702192 PMCID: PMC9116113 DOI: 10.1039/d1ra09433e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 05/06/2022] [Indexed: 11/21/2022] Open
Abstract
There are phenolic acids with allelopathy in the rhizosphere soil of plants. At present, the identification and quantification of phenolic acids in different matrix mixtures is usually analysed by high performance liquid chromatography, but the detection of phenolic acids in soil has rarely been studied. As well as, previous studies have evaluated a limited number of target compounds. In this work, we proposed and verified a method for quantitative determination of 14 phenolic acids, including gallic acid, vanillic acid, p-hydroxybenzoic acid, protocatechuic acid, caffeic acid, syringic acid, p-coumaric acid, ferulic acid, chlorogenic acid, benzoic acid, salicylic acid, 2-methoxycinnamic acid, 3-methoxycinnamic acid, and cinnamic acid, which are widely present in rhizosphere soil of plants and have allelopathy. This method used multiwavelength HPLC-PDA analysis for simultaneous determination of these compounds. The detection wavelengths selected 254 nm, 280 nm, 300 nm, and 320 nm. Chromatographic separation of all compounds was achieved using a column of Shim-pack VP-ODS (250 mm × 4.6 mm, 5 μm), kept at 30 °C. Mobile phase A was acetonitrile, B was a 0.5% acetic acid aqueous solution, and the flow rate was 1.0 mL min−1. Under the condition of gradient elution, the mobile phase A was acetonitrile, B was a 0.5% acetic acid aqueous solution, and the flow rate was kept constant at 1.0 mL min−1. The 14 target phenolic acids were completely separated within 45 min. All the calibration curves showed good linearity, and the correlation coefficient was 0.9994–0.9999. With the detection limit varying from 0.003 mg L−1 to 0.239 mg L−1. The recovery rates and the RSD of 14 phenolic acids were 80.54∼107.0% and 1.43–4.35%, respectively. This method has the characteristics of high sensitivity, high accuracy, and high recovery rate. This method is a novel technical means for the simultaneous analysis of compound phenolic acids in soil. A method for multiple phenolic acids in soil based on HPLC-PDA multi-wavelength analysis was established. The method is high sensitivity, high accuracy and stable sample, and can be used for quantitative analysis of phenolic acids in soil.![]()
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Affiliation(s)
- Jia Cheng
- Department of Resources and Environment, Anhui Science and Technology University, Fengyang 233100, China
| | - Chunfu Zhou
- Department of Resources and Environment, Anhui Science and Technology University, Fengyang 233100, China
| | - Yue Xie
- Department of Resources and Environment, Anhui Science and Technology University, Fengyang 233100, China
| | - Min Wang
- Department of Resources and Environment, Hubei University, Wuhan 430062, China
| | - Cheng Zhou
- Department of Life and Health Sciences, Anhui Science and Technology University, Fengyang 233100, China
| | - XiaoShuang Li
- Department of Resources and Environment, Anhui Science and Technology University, Fengyang 233100, China
| | - YaDong Du
- Department of Resources and Environment, Anhui Science and Technology University, Fengyang 233100, China
| | - Fan Lu
- Department of Resources and Environment, Anhui Science and Technology University, Fengyang 233100, China
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26
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Phomopsis liquidambaris reduces ethylene biosynthesis in rice under salt stress via inhibiting the activity of 1-aminocyclopropane-1-carboxylate deaminase. Arch Microbiol 2021; 203:6215-6229. [PMID: 34609529 DOI: 10.1007/s00203-021-02588-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 10/20/2022]
Abstract
The endophytic fungus Phomopsis liquidambaris is characterized as a plant growth-promoting agent under salt stress, but its mechanism is unknown. Herein, 1-aminocyclopropane-1-carboxylate deaminase (ACCD) from the strain was confirmed that it had the ability of utilizing 1-aminocyclopropane-1-carboxylate as the sole nitrogen source. The full-length ACCD gene was 1152 bp, which encodes a mature protein of 384 amino acids with a molecular mass of 41.53 kDa. The ACCD activity was 3.9-fold in 3 mmol L-1 ACC by qRT-PCR under salt stress comparing with no salt tress. Ethylene production was increased to 34.55-70.60% and reduced the growth of rice by 23-69.73% under salt stress. Inoculation of P. liquidambaris increased root-shoot length, fresh and dry weight, and overall growth of stressed rice seedlings. ACC accumulation, ACC synthase and ACC oxidase activities increased in salt-treated rice seedlings, while they were significantly reduced when P. liquidambaris was inoculated into rice by qRT-PCR. It therefore can be concluded that P. liquidambaris can be used as a plant growth promoting fungus against salt stress and other biotic or abiotic stresses.
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27
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Santos Wagner AL, Araniti F, Bruno L, Ishii-Iwamoto EL, Abenavoli MR. The Steroid Saponin Protodioscin Modulates Arabidopsis thaliana Root Morphology Altering Auxin Homeostasis, Transport and Distribution. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10081600. [PMID: 34451648 PMCID: PMC8399103 DOI: 10.3390/plants10081600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 07/20/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
To date, synthetic herbicides are the main tools used for weed control, with consequent damage to both the environment and human health. In this respect, searching for new natural molecules and understanding their mode of action could represent an alternative strategy or support to traditional management methods for sustainable agriculture. Protodioscin is a natural molecule belonging to the class of steroid saponins, mainly produced by monocotyledons. In the present paper, protodioscin's phytotoxic potential was assessed to identify its target and the potential mode of action in the model plant Arabidopsis thaliana. The results highlighted that the root system was the main target of protodioscin, which caused a high inhibitory effect on the primary root length (ED50 50 μM) with morphological alteration, accompanied by a significant increase in the lateral root number and root hair density. Through a pharmacological and microscopic approach, it was underlined that this saponin modified both auxin distribution and transport, causing an auxin accumulation in the region of root maturation and an alteration of proteins responsible for the auxin efflux (PIN2). In conclusion, the saponin protodioscin can modulate the root system of A. thaliana by interfering with the auxin transport (PAT).
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Affiliation(s)
- Ana Luiza Santos Wagner
- Laboratory of Biological Oxidations, Department of Biochemistry, State University of Maringa, Maringa 87020900, Brazil;
| | - Fabrizio Araniti
- Department of Agricultural and Environmental Sciences (DISAA), University of Milan, Via Celoria, 20133 Milano, Italy;
| | - Leonardo Bruno
- Department of Biology, Ecology and Soil Science, University of Calabria, Arcavacata di Rende (CS), 87036 Arcavacata di Rende, Italy;
| | - Emy Luiza Ishii-Iwamoto
- Laboratory of Biological Oxidations, Department of Biochemistry, State University of Maringa, Maringa 87020900, Brazil;
| | - Maria Rosa Abenavoli
- Department of Agriculture, University of Reggio di Calabria, 89124 Reggio Calabria, Italy
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28
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Anwar T, Qureshi H, Mahnashi MH, Kabir F, Parveen N, Ahmed D, Afzal U, Batool S, Awais M, Ahmed Alyami S, Ahmed Alhaider H. Bioherbicidal ability and weed management of allelopathic methyl esters from Lantana camara. Saudi J Biol Sci 2021; 28:4365-4374. [PMID: 34354421 PMCID: PMC8325027 DOI: 10.1016/j.sjbs.2021.04.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 10/25/2022] Open
Abstract
Allelochemicals are secondary metabolites which are not edible and can be used as growth regulators and bio-herbicides. The goal of current study was to assess allelopathic ability of Lantana camara (Sage-plant) flowers against weeds viz. Avena fatua (Wild oat), Euphorbia helioscopia (Sun-spurge), Chenopodium album (Goosefoot), Phalaris minor (Canary-grass), and Rumex dentatus (Knotweed). Bioassay analysis of three methanolic fractions of the Combiflash from L. camara was performed at 50%, 75% and 100% concentration using germination percentage parameters, inhibition of plumule and radicle size. The fraction II of Combiflash strongly suppressed all weeds with negligible effect on T. aestivum. Gas chromatography-mass spectroscopy was conducted for the fraction, and isolated compounds were used to perform bioassays. From fraction II GC-MS detected four methyl esters of allelopathic fatty acid viz. Methyl oleate, methyl palmitate, methyl stearate and methyl linoleate. The evaluation of physiological effects of the bioassay revealed substantial suppression of chlorophyll, antioxidant enzymes (superoxide, dismutase peroxidase) and protein material in all weeds by methyl palmitate. Bioassay activity and study of physiological parameters revealed that the effective bio-herbicidal compound in Lantana camara flowers is methyl palmitate. This is the first time that methyl palmitate (a fatty acid methyl ester) has been related to herbicidal activity in L. camara flowers. It is proposed that field studies based on hormesis research and the mechanism of action of this compound be carried out.
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Affiliation(s)
- Tauseef Anwar
- Department of Botany, The Islamia University of Bahawalpur, Baghdad-ul-Jadeed Campus, Bahawalpur-63100, Pakistan
| | - Huma Qureshi
- Institute of Biological Sciences, Gomal University, Dera Ismail Khan-29050, Pakistan
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, Pharmacy School, Najran University, Saudi Arabia
| | - Faryal Kabir
- University Institute of Biochemistry and Biotechnology PMAS-Arid Agriculture University, Rawalpindi, Pakistan
| | - Nusrat Parveen
- Department of Botany, Government College University, Faisalabad-38000, Punjab, Pakistan
| | - Dawood Ahmed
- Department of Medical Lab Technology, University of Haripur, Haripur, Pakistan
| | - Umara Afzal
- Department of Chemistry, Rawalpindi Women University, Satellite Town, Rawalpindi-46300, Pakistan
| | - Salma Batool
- Department of Biochemistry, University of Central Punjab, Lahore-54590, Pakistan
| | - Muhammad Awais
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Sialkot, Punjab, Pakistan
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29
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Shen W, Zeng C, Zhang H, Zhu K, He H, Zhu W, He H, Li G, Liu J. Integrative Physiological, Transcriptional, and Metabolic Analyses Provide Insights Into Response Mechanisms of Prunus persica to Autotoxicity Stress. FRONTIERS IN PLANT SCIENCE 2021; 12:794881. [PMID: 34975982 PMCID: PMC8714634 DOI: 10.3389/fpls.2021.794881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/26/2021] [Indexed: 05/10/2023]
Abstract
Autotoxicity is known as a critical factor in replanting problem that reduces land utilization and creates economic losses. Benzoic acid (BA) is identified as a major autotoxin in peach replant problem, and causes stunted seedling growth or even death. However, the physiological and molecular mechanisms of peach response to BA stress remain elusive. Here, we comprehensively studied the morphophysiological, transcriptional, and metabolic responses of peach plants to BA toxicity. Results showed that BA stress inhibited peach seedlings growth, decreased chlorophyll contents and fluorescence levels, as well as disturbed mineral metabolism. The contents of hydrogen peroxide, superoxide anion, and malondialdehyde, as well as the total antioxidant capacity, were significantly increased under BA stress. A total of 6,319 differentially expressed genes (DEGs) were identified after BA stress, of which the DEGs related to photosynthesis, redox, and ion metabolism were greatly changed; meanwhile, numerous stress-responsive genes (HSPs, GSTs, GR, and ABC transporters) and transcription factors (MYB, AP2/ERF, NAC, bHLH, and WRKY) were noticeably altered under BA stress. BA induced metabolic reprogramming, and 74 differentially accumulated metabolites, including amino acids and derivatives, fatty acids, organic acids, sugars, and sugar alcohols, were identified in BA-stressed roots. Furthermore, an integrated analysis of genes and metabolites indicated that most of the co-mapped KEGG pathways were enriched in amino acid and carbohydrate metabolism, which implied a disturbed carbon and nitrogen metabolism after BA stress. The findings would be insightful in elucidating the mechanisms of plant response to autotoxicity stress, and help guide crops in alleviating replant problem.
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Affiliation(s)
- Wanqi Shen
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Chunfa Zeng
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - He Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Kaijie Zhu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Hao He
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, China
| | - Wei Zhu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Hanzi He
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Guohuai Li
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- Guohuai Li, , orcid.org/0000-0003-1170-9157
| | - Junwei Liu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Junwei Liu, , orcid.org/0000-0002-8842-2253
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Yan ZQ, Tan J, Guo K, Yao LG. Phytotoxic mechanism of allelochemical liquiritin on root growth of lettuce seedlings. PLANT SIGNALING & BEHAVIOR 2020; 15:1795581. [PMID: 32693669 PMCID: PMC8550531 DOI: 10.1080/15592324.2020.1795581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/01/2020] [Accepted: 07/03/2020] [Indexed: 05/13/2023]
Abstract
As the main active ingredient of the traditional Chinese medicine Glycyrrhiza uralensis Fisch, liquiritin has multiple biological activities, including anti-inflammatory, antihepatotoxicity, immune regulation, anti-virus and anti-cancer. In addition, liquiritin has been recognized as an allelochemical that displays markedly inhibitory effects on the growth of target plants, G. uralensis and lettuce. However, its phytotoxic mechanism remains unknown. In the present study, the mode of action of liquiritin against root growth of lettuce seedling was researched. After treatments with liquiritin, the cell division in root tips of lettuce seedlings was partly arrested, and the cell viability and root vitality were obviously lost. At the same time, overproduction of reactive oxygen species (ROS), malondialdehyde (MDA) and proline (Pro) in lettuce seedlings were induced by liquiritin. The results indicated that the phytotoxic effects of liquiritin was probably dependent on the induction of ROS overproduction, resulting in membrane lipids peroxidation following with cell death and mitosis process disorder.
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Affiliation(s)
- Zhi-Qiang Yan
- Henan Provincal Engineering and Technology Center of Health Products for Livestock and Poultry, Key Laboratory of Ecological Security and Collaborative Innovation Centre of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, School of Agricultural Engineering, Nanyang Normal University, Nanyang, China
| | - Jing Tan
- School of Economics and Management, Nanyang Normal University, Nanyang, China
| | - Kai Guo
- School of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang, China
| | - Lun-Guang Yao
- Henan Provincal Engineering and Technology Center of Health Products for Livestock and Poultry, Key Laboratory of Ecological Security and Collaborative Innovation Centre of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, School of Agricultural Engineering, Nanyang Normal University, Nanyang, China
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31
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Xiang W, Wei X, Tang H, Li L, Huang R. Complete Genome Sequence and Biodegradation Characteristics of Benzoic Acid-Degrading Bacterium Pseudomonas sp. SCB32. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6146104. [PMID: 32714981 PMCID: PMC7354641 DOI: 10.1155/2020/6146104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 04/17/2020] [Indexed: 11/25/2022]
Abstract
Allelochemicals are metabolites produced by living organisms that have a detrimental effect on other species when released into the environment. These chemicals play critical roles in the problems associated with crop replanting. Benzoic acid is a representative allelochemical found in root exudates and rhizosphere soil of crops and inhibits crop growth. The bioremediation of allelochemicals by microorganisms is an efficient decontamination process. In this research, a bacterial strain capable of degrading benzoic acid as the sole carbon source was isolated. The genome of the strain was sequenced, and biodegradation characteristics and metabolic mechanisms were examined. Strain SCB32 was identified as Pseudomonas sp. based on 16S rRNA gene analysis coupled with physiological and biochemical analyses. The degradation rate of 800 mg L-1 benzoic acid by strain SCB32 was greater than 97.0% in 24 h. The complete genome of strain SCB32 was 6.3 Mbp with a GC content of 64.6% and 5960 coding genes. Potential benzoic acid degradation genes were found by comparison to the KEGG database. Some key intermediate metabolites of benzoic acid, such as catechol, were detected by gas chromatography-mass spectrometry. The biodegradation pathway of benzoic acid, the ortho pathway, is proposed for strain SCB32 based on combined data from genome annotation and mass spectrometry. Moreover, the benzoic acid degradation products from strain SCB32 were essentially nontoxic to lettuce seedlings, while seeds in the benzoic acid-treated group showed significant inhibition of germination. This indicates a possible application of strain SCB32 in the bioremediation of benzoic acid contamination in agricultural environments.
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Affiliation(s)
- Wei Xiang
- Department of Agronomy, Agricultural College of Guangxi University, Nanning 530004, China
| | - Xiaolan Wei
- Department of Agronomy, Agricultural College of Guangxi University, Nanning 530004, China
| | - Hui Tang
- Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
| | - Liangbo Li
- Department of Agronomy, Agricultural College of Guangxi University, Nanning 530004, China
| | - Rongshao Huang
- Department of Agronomy, Agricultural College of Guangxi University, Nanning 530004, China
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32
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Inaji A, Okazawa A, Taguchi T, Nakamoto M, Katsuyama N, Yoshikawa R, Ohnishi T, Waller F, Ohta D. Rhizotaxis Modulation in Arabidopsis Is Induced by Diffusible Compounds Produced during the Cocultivation of Arabidopsis and the Endophytic Fungus Serendipita indica. PLANT & CELL PHYSIOLOGY 2020; 61:838-850. [PMID: 32016405 DOI: 10.1093/pcp/pcaa008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/25/2020] [Indexed: 06/10/2023]
Abstract
Rhizotaxis is established under changing environmental conditions via periodic priming of lateral root (LR) initiation at the root tips and adaptive LR formation along the primary root (PR). In contrast to the adaptable LR formation in response to nutrient availability, there is little information on root development during interactions with beneficial microbes. The Arabidopsis root system is characteristically modified upon colonization by the root endophytic fungus Serendipita indica, accompanied by a marked stimulation of LR formation and the inhibition of PR growth. This root system modification has been attributed to endophyte-derived indole-3-acetic acid (IAA). However, it has yet to be clearly explained how fungal IAA affects the intrinsic LR formation process. In this study, we show that diffusible compounds (chemical signals) other than IAA are present in the coculture medium of Arabidopsis and S. indica and induce auxin-responsive DR5::GUS expression in specific sections within the pericycle layer. The DR5::GUS expression was independent of polar auxin transport and the major IAA biosynthetic pathways, implicating unidentified mechanisms responsible for the auxin response and LR formation. Detailed metabolite analysis revealed the presence of multiple compounds that induce local auxin responses and LR formation. We found that benzoic acid (BA) cooperatively acted with exogenous IAA to generate a local auxin response in the pericycle layer, suggesting that BA is one of the chemical signals involved in adaptable LR formation. Identification and characterization of the chemical signals will contribute to a greater understanding of the molecular mechanisms underlying adaptable root development and to unconventional technologies for sustainable agriculture.
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Affiliation(s)
- Aoi Inaji
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531 Japan
| | - Atsushi Okazawa
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531 Japan
| | - Taiki Taguchi
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531 Japan
| | - Masatoshi Nakamoto
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu Shiga, 525-8577 Japan
| | - Nao Katsuyama
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531 Japan
| | - Ryoka Yoshikawa
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531 Japan
| | - Toshiyuki Ohnishi
- Graduate School of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529 Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529 Japan
| | - Frank Waller
- Julius-von-Sachs-Institute, Pharmaceutical Biology, Julius-Maximilians-University Würzburg, Julius-von-Sachs-Platz 2, Würzburg D-97082, Germany
| | - Daisaku Ohta
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531 Japan
- Bioeconomy Research Institute, Research Center for the 21st Century, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531 Japan
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Bahmani R, Kim D, Modareszadeh M, Thompson AJ, Park JH, Yoo HH, Hwang S. The mechanism of root growth inhibition by the endocrine disruptor bisphenol A (BPA). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 257:113516. [PMID: 31733969 DOI: 10.1016/j.envpol.2019.113516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/18/2019] [Accepted: 10/28/2019] [Indexed: 05/12/2023]
Abstract
Bisphenol A (BPA) is a harmful environmental contaminant acting as an endocrine disruptor in animals, but it also affects growth and development in plants. Here, we have elucidated the functional mechanism of root growth inhibition by BPA in Arabidopsis thaliana using mutants, reporter lines and a pharmacological approach. In response to 10 ppm BPA, fresh weight and main root length were reduced, while auxin levels increased. BPA inhibited root growth by reducing root cell length in the elongation zone by suppressing expansin expression and by decreasing the length of the meristem zone by repressing cell division. The inhibition of cell elongation and cell division was attributed to the enhanced accumulation/redistribution of auxin in the elongation zone and meristem zone in response to BPA. Correspondingly, the expressions of most auxin biosynthesis and transporter genes were enhanced in roots by BPA. Taken together, it is assumed that the endocrine disruptor BPA inhibits primary root growth by inhibiting cell elongation and division through auxin accumulation/redistribution in Arabidopsis. This study will contribute to understanding how BPA affects growth and development in plants.
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Affiliation(s)
- Ramin Bahmani
- Department of Molecular Biology, Sejong University, Seoul, 143-747, South Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, South Korea; The Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea
| | - DongGwan Kim
- Department of Molecular Biology, Sejong University, Seoul, 143-747, South Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, South Korea; The Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea
| | - Mahsa Modareszadeh
- Department of Molecular Biology, Sejong University, Seoul, 143-747, South Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, South Korea; The Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea
| | - Andrew J Thompson
- Cranfield Soil and Agrifood Institute, Cranfield University, Cranfield, Bedfordshire, MK43 0AL, UK
| | - Jeong Hoon Park
- College of Pharmacy, Hanyang University, Ansan, Gyeonggi-do 15588, South Korea
| | - Hye Hyun Yoo
- College of Pharmacy, Hanyang University, Ansan, Gyeonggi-do 15588, South Korea
| | - Seongbin Hwang
- Department of Molecular Biology, Sejong University, Seoul, 143-747, South Korea; Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, 143-747, South Korea; The Plant Engineering Research Institute, Sejong University, Seoul, 143-747, South Korea.
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34
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Gómez R, Vicino P, Carrillo N, Lodeyro AF. Manipulation of oxidative stress responses as a strategy to generate stress-tolerant crops. From damage to signaling to tolerance. Crit Rev Biotechnol 2019; 39:693-708. [PMID: 30991845 DOI: 10.1080/07388551.2019.1597829] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Plants exposed to hostile environmental conditions such as drought or extreme temperatures usually undergo oxidative stress, which has long been assumed to significantly contribute to the damage suffered by the organism. Reactive oxygen species (ROS) overproduced under stress conditions were proposed to destroy membrane lipids and to inactivate proteins and photosystems, ultimately leading to cell death. Accordingly, considerable effort has been devoted, over the years, to improve stress tolerance by strengthening antioxidant and dissipative mechanisms. Although the notion that ROS cause indiscriminate damage in vivo has been progressively replaced by the alternate concept that they act as signaling molecules directing critical plant developmental and environmental responses including cell death, the induction of genes encoding antioxidant activities is commonplace under many environmental stresses, suggesting that their manipulation still offers promise. The features and consequences of ROS effects depend on the balance between various interacting pathways including ROS synthesis and scavenging, energy dissipation, conjugative reactions, and eventually reductive repair. They represent many possibilities for genetic manipulation. We report, herein, a comprehensive survey of transgenic plants in which components of the ROS-associated pathways were overexpressed, and of the stress phenotypes displayed by the corresponding transformants. Genetic engineering of different stages of ROS metabolism such as synthesis, scavenging, and reductive repair revealed a strong correlation between down-regulation of ROS levels and increased stress tolerance in plants grown under controlled conditions. Field assays are scarce, and are eagerly required to assess the possible application of this strategy to agriculture.
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Affiliation(s)
- Rodrigo Gómez
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
| | - Paula Vicino
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
| | - Néstor Carrillo
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
| | - Anabella F Lodeyro
- a Facultad de Ciencias Bioquímicas y Farmacéuticas, Biología del Estrés en Plantas, Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET) , Universidad Nacional de Rosario (UNR) , Rosario , Argentina
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