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Lim-Hing S, Gandhi KJK, Villari C. The role of Manganese in tree defenses against pests and pathogens. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108641. [PMID: 38663267 DOI: 10.1016/j.plaphy.2024.108641] [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: 11/15/2023] [Revised: 03/25/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024]
Abstract
Manganese (Mn) deficiency is a widespread occurrence across different landscapes, including agricultural systems and managed forests, and causes interruptions in the normal metabolic functioning of plants. The microelement is well-characterized for its role in the oxygen-evolving complex in photosystem II and maintenance of photosynthetic structures. Mn is also required for a variety of enzymatic reactions in secondary metabolism, which play a crucial role in defense strategies for trees. Despite the strong relationship between Mn availability and the biosynthesis of defense-related compounds, there are few studies addressing how Mn deficiency can impact tree defense mechanisms and the ensuing ecological patterns and processes. Understanding this relationship and highlighting the potentially deleterious effects of Mn deficiency in trees can also inform silvicultural and management decisions to build more robust forests. In this review, we address this relationship, focusing on forest trees. We describe Mn availability in forest soils, characterize the known impacts of Mn deficiency in plant susceptibility, and discuss the relationship between Mn and defense-related compounds by secondary metabolite class. In our review, we find several lines of evidence that low Mn availability is linked with lowered or altered secondary metabolite activity. Additionally, we compile documented instances where Mn limitation has altered the defense capabilities of the host plant and propose potential ecological repercussions when studies are not available. Ultimately, this review aims to highlight the importance of untangling the effects of Mn limitation on the ecophysiology of plants, with a focus on forest trees in both managed and natural stands.
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Affiliation(s)
- Simone Lim-Hing
- D.B. Warnell School of Forestry and Natural Resources, University of Georgia, 180 East Green Street, Athens, 30602, Georgia, USA; Department of Plant Biology, University of Georgia, 120 Carlton Street, Athens, 30602, Georgia, USA.
| | - Kamal J K Gandhi
- D.B. Warnell School of Forestry and Natural Resources, University of Georgia, 180 East Green Street, Athens, 30602, Georgia, USA
| | - Caterina Villari
- D.B. Warnell School of Forestry and Natural Resources, University of Georgia, 180 East Green Street, Athens, 30602, Georgia, USA.
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Zamani S, Bakhshi D, Sahraroo A, Ebadi M. Improvement of phytochemical and quality characteristics of Dracocephalum kotschyi by drying methods. Food Sci Nutr 2023; 11:4246-4262. [PMID: 37457179 PMCID: PMC10345690 DOI: 10.1002/fsn3.3351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/09/2023] [Accepted: 03/17/2023] [Indexed: 07/18/2023] Open
Abstract
This experiment was conducted to evaluate the effects of different drying methods on drying parameters and qualitative characteristics of Dracocephalum kotschyi in a completely randomized design with three replications. Treatments included shade drying as control, sun drying, cabinet drying (CD at 50 and 60°C), refractance window drying (RWD), infrared drying (IRD) at 200 and 300 W, and combination of RWD+ IRD at 200 and 300 W. According to the results, IRD, RWD, and RWD+ IRD effectively maintained valuable secondary metabolites compared to the conventional drying methods. The maximum total phenol content (2.7 and 2.66 mg GAE/g dry weight), total flavonoid content (2.26 and 2.33 mg QE/g dry weight), antioxidant activity (79% and 78.33%), and essential oil content (0.65% and 0.76%) were obtained from plants dried by RWD and IRD. Samples dried by RWD, IRD, and RWD+ IRD had high color quality, acceptable green color, and less browning. Also, RWD and IRD methods effectively reduced microbial contamination of dried plants compared to the control and other methods. The minimum aerobic mesophiles, mold, yeast, and coliforms were observed at 3.11, 0, and 1.47 log CFU/g in IRD 300 W and 3.17, 1, and 1.30 log CFU/g in RWD. D. kotschyi dried at CD 50°C had the maximum microbial contamination. Generally, according to the obtained results, RWD and IRD methods are suggested for drying of D. kotschyi and similar herbs due to shortening the drying time, preserving and improving the quality properties of dried plants.
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Affiliation(s)
- Sahar Zamani
- Department of Horticultural Science, Faculty of Agricultural SciencesUniversity of GuilanRashtIran
| | - Davood Bakhshi
- Department of Horticultural Science, Faculty of Agricultural SciencesUniversity of GuilanRashtIran
| | - Amir Sahraroo
- Department of Horticultural Science, Faculty of Agricultural SciencesUniversity of GuilanRashtIran
| | - Mohammad‐Taghi Ebadi
- Department of Horticultural Science, Faculty of AgricultureTarbiat Modares UniversityTehranIran
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Afshari M, Rahimmalek M. Variation in essential oil composition, anatomical, and antioxidant characteristics of Achillea filipendulina Lam. as affected by different phenological stages. JOURNAL OF ESSENTIAL OIL RESEARCH 2021. [DOI: 10.1080/10412905.2021.1885510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mahvash Afshari
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Mehdi Rahimmalek
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
- Department of Horticulture, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
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Jafarirad S, Kosari-Nasab M, Mohammadpour Tavana R, Mahjouri S, Ebadollahi R. Impacts of manganese bio-based nanocomposites on phytochemical classification, growth and physiological responses of Hypericum perforatum L. shoot cultures. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111841. [PMID: 33387772 DOI: 10.1016/j.ecoenv.2020.111841] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/19/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
We report a new green route for preparing MnO2/perlite nanocomposites (NCs) by leaf extract of Hypericum perforatum. Characterization of the physicochemical properties of the MnO2/perlite-NCs was performed using XRD, FESEM, EDX, FT-IR, and DLS techniques. Furthermore, their effects on the phytochemical classification and growth parameters of H. perforatum shoot cultures were assessed. According to the FESEM image, the synthesized spherical MnO2 nanoparticles on the sheet-like structure of nano-perlite were formed, ranging about 20-50 nm. In addition, based on the EDX spectra, the elemental analysis showed the presence of Carbon, Oxygen, Silicon, Aluminum, and Manganese elements in the as-synthesized MnO2/perlite-NCs. Biological studies confirmed that nano-perlite and MnO2/perlite-NCs were non-toxic to H. perforatum shoot cultures and showed positive effects on plant growth in specific concentrations. Overall, phytochemical classification demonstrated that the terpenoids decreased in the evaluated treatments, while hypericin and pseudohypericin were increased in some treatments (25, 50 and 150 mg/L of nano-perlite) relative to control. Metabolomics results suggested that both nano-perlite and MnO2/perlite-NCs can be used as elicitors and new nanofertilizers for generating some secondary metabolites.
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Affiliation(s)
- S Jafarirad
- Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Research Institute of Bioscience and Biotechnology, University of Tabriz, Tabriz, Iran.
| | - M Kosari-Nasab
- Department of Plant Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - R Mohammadpour Tavana
- Research Institute of Bioscience and Biotechnology, University of Tabriz, Tabriz, Iran
| | - S Mahjouri
- Department of Biological Sciences, Faculty of Basic Sciences, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - R Ebadollahi
- Research Institute of Bioscience and Biotechnology, University of Tabriz, Tabriz, Iran
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Abstract
Betonica bulgarica is an endemic species distributed in Bulgaria. The chemical composition of the essential oil analysed by GC–MS (Gas chromatography–mass spectrometry) and the content of trace elements analysed by ICP–MS (Inductively coupled plasma mass spectrometry) were determined. Additionally, a study on the types and distribution of trichomes was done using a microscope with a camera. The essential oil was characterized using a high concentration of sesquiterpene hydrocarbons, whose major compounds are β-caryophyllene (17.4%), germacrene D (9.9%), and β-bourbonene (6.7%). The contents of manganese (177.2 µg/g) and strontium (156.8 µg/g) were highest among the investigated micronutrients. Two types of trichomes were identified on the adaxial and abaxial epidermises of the leaves of B. bulgarica—covering and glandular. Peltate stacked glandular trichomes with a four-celled head of type B were observed on the leaf surface.
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Javed K, Qiu D. Protein Elicitor PeBL1 of Brevibacillus laterosporus Enhances Resistance Against Myzus persicae in Tomato. Pathogens 2020; 9:pathogens9010057. [PMID: 31947681 PMCID: PMC7168619 DOI: 10.3390/pathogens9010057] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 12/29/2022] Open
Abstract
Myzus persicae, a destructive aphid of tomato usually managed by chemical pesticides, is responsible for huge annual losses in agriculture. In the current work, a protein elicitor, PeBL1, was investigated for its capacity to induce a defense response against M. persicae in tomato. Population growth rates of M. persicae (second and third generation) decreased with PeBL1 treatments as compared with controls. In a host selection assay, M. persicae showed preference for colonizing control plants as compared to tomato seedlings treated with PeBL1. Tomato leaves treated with PeBL1 gave rise to a hazardous surface environment for M. persicae due to formation of trichomes and wax. Jasmonic acid (JA), salicylic acid (SA), and ethylene (ET) showed significant accumulation in tomato seedlings treated by PeBL1. The following results showed that PeBL1 significantly modified the tomato leaf surface structure to reduce reproduction and deter colonization by M. persicae. Defense processes also included activation of JA, SA, and ET pathways. The study provides evidence for use of PeBL1 in the protection of tomato from M. persicae.
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Li L, Wang S, Yang X, Francis F, Qiu D. Protein elicitor PeaT1 enhanced resistance against aphid (Sitobion avenae) in wheat. PEST MANAGEMENT SCIENCE 2020; 76:236-243. [PMID: 31149755 DOI: 10.1002/ps.5502] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/28/2019] [Accepted: 05/25/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Sitobion avenae, a dominant aphid in wheat that causes huge annual losses in agriculture, is mainly controlled using chemical pesticides. In this study, we investigated a protein elicitor, PeaT, for its induction of the defense response in wheat against Sitobion avenae. RESULTS Intrinsic rates of increase in second and third generations of S. avenae decreased in the PeaT1 (second generation 0.31 ± 0.01, third generation 0.28 ± 0.01) treatment compared with controls (second generation 0.28 ± 0.01, third generation 0.26 ± 0.01). S. avenae preferred to colonize control rather than PeaT1-treated wheat seedlings in a host selection test. PeaT1-treated wheat leaves possessed more trichomes and wax that formed a disadvantageous surface environment for S. avenae. Both salicylic acid (SA) and jasmonic acid (JA) accumulated significantly in PeaT1-treated wheat seedlings. CONCLUSION These results showed that PeaT1 modified physical surface structures in wheat to reduce reproduction and deter colonization by S. avenae. SA and JA were involved in the induced physical defense process. This study provided evidence for use of PeaT1 as a 'vaccine' to protect wheat from Sitobion avenae. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Lin Li
- State Key Laboratory of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Shuangchao Wang
- State Key Laboratory of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Xiufen Yang
- State Key Laboratory of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Frederic Francis
- Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Dewen Qiu
- State Key Laboratory of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
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