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Fuchs B, Helander M, Saikkonen K, Dobrev PI, Vankova R, Blande JD, Salminen JP, Luntamo N, Muola A. Plant metabolic responses to soil herbicide residues differ under herbivory in two woodland strawberry genotypes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174198. [PMID: 38914330 DOI: 10.1016/j.scitotenv.2024.174198] [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: 04/20/2024] [Revised: 06/18/2024] [Accepted: 06/20/2024] [Indexed: 06/26/2024]
Abstract
The use of glyphosate-based herbicides (GBHs) to control weeds has increased exponentially in recent decades, and their residues and degradation products have been found in soils across the globe. GBH residues in soil have been shown to affect plant physiology and specialised metabolite biosynthesis, which, in turn, may impact plant resistance to biotic stressors. In a greenhouse study, we investigated the interactive effects between soil GBH residues and herbivory on the performance, phytohormone concentrations, phenolic compound concentrations and volatile organic compound (VOC) emissions of two woodland strawberry (Fragaria vesca) genotypes, which were classified as herbivore resistant and herbivore susceptible. Plants were subjected to herbivory by strawberry leaf beetle (Galerucella tenella) larvae, and to GBH residues by growing in soil collected from a field site with GBH treatments twice a year over the past eight years. Soil GBH residues reduced the belowground biomass of the susceptible genotype and the aboveground biomass of both woodland strawberry genotypes. Herbivory increased the belowground biomass of the resistant genotype and the root-shoot ratio of both genotypes. At the metabolite level, herbivory induced the emission of several VOCs. Jasmonic acid, abscisic acid and auxin concentrations were induced by herbivory, in contrast to salicylic acid, which was only induced by herbivory in combination with soil GBH residues in the resistant genotype. The concentrations of phenolic compounds were higher in the resistant genotype compared to the susceptible genotype and were induced by soil GBH residues in the resistant genotype. Our results indicate that soil GBH residues can differentially affect plant performance, phytohormone concentrations and phenolic compound concentrations under herbivore attack, in a genotype-dependent manner. Soil GBH altered plant responses to herbivory, which may impact plant resistance traits and species interactions. With ongoing agrochemical pollution, we need to consider plant cultivars with better resistance to polluted soils while maintaining plant resilience under challenging environmental conditions.
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Affiliation(s)
- Benjamin Fuchs
- Biodiversity Unit, University of Turku, 20014 Turku, Finland.
| | - Marjo Helander
- Department of Biology, University of Turku, 20014 Turku, Finland
| | - Kari Saikkonen
- Biodiversity Unit, University of Turku, 20014 Turku, Finland
| | - Petre I Dobrev
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech Republic
| | - Radomira Vankova
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech Republic
| | - James D Blande
- Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Juha-Pekka Salminen
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Niko Luntamo
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Anne Muola
- Biodiversity Unit, University of Turku, 20014 Turku, Finland; Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Ås, Norway
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Rasool S, Jensen B, Roitsch TG, Meyling NV. Enzyme regulation patterns in fungal inoculated wheat may reflect resistance and tolerance towards an insect herbivore. JOURNAL OF PLANT PHYSIOLOGY 2024; 300:154298. [PMID: 38924905 DOI: 10.1016/j.jplph.2024.154298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 06/11/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024]
Abstract
Seed inoculation with entomopathogenic fungi (EPF) causes plant-mediated effects against arthropod herbivores, but the responses vary among EPF isolates. We used a wheat model system with three isolates representing Beauveria bassiana and Metarhizium spp. causing either negative or positive effects against the aphid Rhopalosiphum padi. Activities of six carbohydrate enzymes increased in plants showing biomass build-up after EPF inoculations. However, only aldolase activity showed positive correlation with R. padi numbers. Plants inoculated with M. robertsii hosted fewest aphids and showed increased activity of superoxide dismutase, implying a defense strategy of resistance towards herbivores. In M. brunneum-inoculated plants, hosting most R. padi, activities of catalase and glutathione reductase were increased suggesting enhanced detoxification responses towards aphids. However, M. brunneum simultaneously increased plant growth indicating that this isolate may cause the plant to tolerate herbivory. EPF seed inoculants may therefore mediate either tolerance or resistance towards biotic stress in plants in an isolate-dependent manner.
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Affiliation(s)
- Shumaila Rasool
- Department of Plant and Environmental Sciences, University of Copenhagen, Denmark; Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands.
| | - Birgit Jensen
- Department of Plant and Environmental Sciences, University of Copenhagen, Denmark.
| | - Thomas G Roitsch
- Department of Plant and Environmental Sciences, University of Copenhagen, Denmark; Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic.
| | - Nicolai V Meyling
- Department of Plant and Environmental Sciences, University of Copenhagen, Denmark.
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Huang J, Zaynab M, Sharif Y, Khan J, Al-Yahyai R, Sadder M, Ali M, Alarab SR, Li S. Tannins as antimicrobial agents: Understanding toxic effects on pathogens. Toxicon 2024; 247:107812. [PMID: 38908527 DOI: 10.1016/j.toxicon.2024.107812] [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: 05/10/2024] [Revised: 06/06/2024] [Accepted: 06/16/2024] [Indexed: 06/24/2024]
Abstract
"Tannins" are compounds that belong to a group of secondary metabolites found in plants. They have a polyphenolic nature and exhibit active actions as first line defenses against invading pathogens. Several studies have demonstrated the multiple activities of tannins, highlighting their effectiveness as broad-spectrum antimicrobial agents. Tannins have reported as antibacterial, antifungal, and antiviral compounds by preventing enzymatic activities and inhibiting the synthesis of nucleic acids. Additionally, tannins primarily strengthen the plant cell wall, making it almost impenetrable to harmful pathogens. Most tannins are synthesized via the phenylpropanoid pathway to become secondary metabolites. Increased uptake of tannins has the potential to provide permanent immunity to subsequent infections by strengthening cell walls and producing antimicrobial compounds. Tannins also demonstrate a synergistic response with other defense-related molecules, such as phytoalexins and pathogenesis-related proteins, including antimicrobial peptides. Studying the mechanisms mediated by tannins on pathogen behaviors would be beneficial in stimulating plant defense against pathogens. This understanding could help explain the occurrence of diseases and outbreaks and enable potential mitigation in both natural and agricultural ecosystems.
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Affiliation(s)
- Jianzi Huang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
| | - Madiha Zaynab
- Institute of Biological Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan.
| | - Yasir Sharif
- College of Plant Protection, Fujian Agriculture and Forestry University, Fujian, China
| | - Jallat Khan
- Institute of Chemistry Khwaja Fareed University of Engineering and Information Technology Rahim Yar Khan, Pakistan
| | - Rashid Al-Yahyai
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, PO Box 34, Al-Khod 123, Muscat, Oman
| | - Monther Sadder
- School of Agriculture University of Jordan, Amman, 11942, Jordan
| | - Munawar Ali
- Institute of Biological Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Saber R Alarab
- Department of Biotechnology, College of Science, Taif University, Taif, 21944, Saudi Arabia
| | - Shuangfei Li
- Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, China
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Cortez AO, Yoshinaga N, Mori N, Hwang SY. Plant growth-promoting rhizobacteria modulate induced corn defense against Spodoptera litura (Lepidoptera: Noctuidae). Biosci Biotechnol Biochem 2024; 88:872-884. [PMID: 38782714 DOI: 10.1093/bbb/zbae073] [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: 01/03/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024]
Abstract
Common cutworm, Spodoptera litura is an important pest of corn causing significant crop yield loss. Synthetic insecticides have mostly been used to combat this pest, raising human and environmental health concerns. Plant growth-promoting rhizobacteria (PGPR) could compensate for or augment the harmful effects of agrochemicals. Herein, we aimed to assess whether PGPR-induced defenses in corn plants impact the host-plant selection behavior of S. litura. Headspace volatile organic compounds were analyzed using gas chromatography-mass spectrometry. Larvae fed inoculated corn exhibited lower weights and relative growth rate than noninoculated plants. Under choice experiments, PGPR-treated plants significantly reduced percentage leaf damage area and oviposition rate compared to untreated plants. Volatile organic compound ratio emission varied significantly between control and PGPR treatments, which, in part, explains feeding and oviposition deterrence in PGPR-treated plants. The results demonstrate that PGPR inoculation can enhance corn resistance to S. litura, making it a promising candidate for crop protection strategies.
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Affiliation(s)
- Amado O Cortez
- Insect-Plant Interaction Laboratory, Department of Entomology, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung, Taiwan
- Department of Crop Science, College of Agriculture, Isabela State University, Echague, Isabela, the Philippines
| | - Naoko Yoshinaga
- Chemical Ecology Laboratory, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Naoki Mori
- Chemical Ecology Laboratory, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Shaw-Yhi Hwang
- Insect-Plant Interaction Laboratory, Department of Entomology, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung, Taiwan
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Beringue A, Queffelec J, Le Lann C, Sulmon C. Sublethal pesticide exposure in non-target terrestrial ecosystems: from known effects on individuals to potential consequences on trophic interactions and network functioning. ENVIRONMENTAL RESEARCH 2024:119620. [PMID: 39032619 DOI: 10.1016/j.envres.2024.119620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/23/2024]
Abstract
Over the last decades, the intensification of agriculture has resulted in an increasing use of pesticides, which has led to widespread contamination of non-target ecosystems in agricultural landscapes. Plants and arthropods inhabiting these systems are therefore chronically exposed to, at least, low levels of pesticides through direct pesticide drift, but also through the contamination of their nutrient sources (e.g. soil water or host/prey tissues). Pesticides (herbicides, acaricides/insecticides and fungicides) are chemical substances used to control pests, such as weeds, phytophagous arthropods and pathogenic microorganisms. These molecules are designed to disturb specific physiological mechanisms and induce mortality in targeted organisms. However, under sublethal exposure, pesticides also affect biological processes including metabolism, development, reproduction or inter-specific interactions even in organisms that do not possess the molecular target of the pesticide. Despite the broad current knowledge on sublethal effects of pesticides on organisms, their adverse effects on trophic interactions are less investigated, especially within terrestrial trophic networks. In this review, we provide an overview of the effects, both target and non-target, of sublethal exposures to pesticides on traits involved in trophic interactions between plants, phytophagous insects and their natural enemies. We also discuss how these effects may impact ecosystem functioning by analyzing studies investigating the responses of Plant-Phytophage-Natural enemy trophic networks to pesticides. Finally, we highlight the current challenges and research prospects in the understanding of the effects of pesticides on trophic interactions and networks in non-target terrestrial ecosystems.
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Affiliation(s)
- Axel Beringue
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Rennes, France
| | | | - Cécile Le Lann
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Rennes, France
| | - Cécile Sulmon
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Rennes, France.
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Vasquez A, Belsky J, Khanal N, Puri H, Balakrishnan D, Joshi NK, Louis J, Studebaker G, Kariyat R. Melanaphis sacchari/sorghi complex: current status, challenges and integrated strategies for managing the invasive sap-feeding insect pest of sorghum. PEST MANAGEMENT SCIENCE 2024. [PMID: 39001705 DOI: 10.1002/ps.8291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 06/18/2024] [Accepted: 06/24/2024] [Indexed: 07/15/2024]
Abstract
Melanaphis sacchari (Zehntner;Hemiptera: Aphididae), sugarcane aphid (SCA), is an invasive phloem-feeder found worldwide with a wide host range of economically important plants including sorghum and sugarcane. Given its high reproductive capacity and ability to rapidly spread over long distances, SCA presents challenges for effective control, leading to substantial economic losses. Recent studies have identified two multiloci SCA genotypes specialized in feeding on sugarcane (MLL-D) and sorghum (MLL-F) in the USA, which raises concerns as the USA is the second largest sorghum-producing country. This has encouraged research towards identifying these two biotypes where some research has stated them as two species; MLL-D clade to be M. sacchari and MLL-F clade to be M. sorghi Theobald (Hemiptera: Aphididae), sorghum aphid (SA). This review aims at compiling research progress that has been made on understanding the SCA/SA species complex. Furthermore, this review also highlights a wide range of management strategies against SCA/SA that includes both biological and chemical methods. In addition, the review emphasizes studies examining host plant resistance to understand and evaluate the role of R-genes and phytohormones such as jasmonic acid, salicylic acid and ethylene against SCA. Beside this, plant volatiles and other secondary metabolites such as flavonoids, terpenes and phytanes are also explored as potential control agents. Being an invasive pest, a single management tactic is inadequate to control SCA population and hence, integrated pest management practices incorporating physical, cultural and biological control methods should be implemented with exclusive chemical control as a last resort, which this review examines in detail. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Alejandro Vasquez
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - Joseph Belsky
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - Neetu Khanal
- Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Heena Puri
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Devi Balakrishnan
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - Neelendra K Joshi
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - Joe Louis
- Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Glenn Studebaker
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - Rupesh Kariyat
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
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Liu L, Yan W, Liu B, Qin W. Molecular Insights into Red Palm Weevil Resistance Mechanisms of Coconut ( Cocos nucifera) Leaves. PLANTS (BASEL, SWITZERLAND) 2024; 13:1928. [PMID: 39065455 PMCID: PMC11280253 DOI: 10.3390/plants13141928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 07/09/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024]
Abstract
Red palm weevil (RPW) (Rhynchophorus ferrugineus) threatens most palm species worldwide. This study investigated the molecular responses of coconut (Cocos nucifera) leaves to RPW infestation through metabolomics and transcriptomics analysis. An RPW insect attack model was developed by placing different RPW larval densitiesin coconut plants and measuring the relative chlorophyll content of different leaf positions and physiological indicators of dysfunction after RPW infestation. The metabolomic changes were detected in the leaves of 10, 20, 30, 40, and 50 days after infestation (DAI) using GC-MS. Certain metabolites (glycine, D-pinitol, lauric acid, allylmalonic acid, D-glucaro-1, 4-lactone, protocatechuic acid, alpha, and alpha-trehalose) were found to be possible indicators for distinct stages of infestation using metabolomics analysis. The influence on ABC transporters, glutathione, galactose, and glycolipid metabolism was emphasized by pathway analysis. Differentially expressed genes (DEGs) were identified at 5, 10, 15, and 20 DAI through transcriptomics analysis of infested coconut leaves, with altered expression levels under RPW infestation. The KEGG pathway and GO analysis revealed enrichment in pathways related to metabolism, stress response, and plant-pathogen interactions, shedding light on the intricate mechanisms underlying coconut-RPW interactions. The identified genes may serve as potential markers for tracking RPW infestation progression and could inform strategies for pest control and management.
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Affiliation(s)
- Li Liu
- Hainan Key Laboratory of Tropical Oil Crops Biology, Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang 571339, China; (W.Y.); (B.L.); (W.Q.)
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Jiang J, Fan G, Wang R, Yao W, Zhou B, Jiang T. Multi-omics analysis of Populus simonii × P. nigra leaves under Hyphantria cunea stress. FRONTIERS IN PLANT SCIENCE 2024; 15:1392433. [PMID: 39049858 PMCID: PMC11267504 DOI: 10.3389/fpls.2024.1392433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 05/30/2024] [Indexed: 07/27/2024]
Abstract
Poplar is an important greening and timber tree species in China, which has great economic and ecological values. However, the spread of Hyphantria cunea has become increasingly serious in recent years, resulting in huge economic loss of poplar production. Exploring the molecular mechanism of poplar reponse to H. cunea stress has significant implications for future development of new insect-resistant poplar varieties using genetic engineering technology. In this study, a total of 1039 differentially expressed genes (DEGs), 106 differentially expressed proteins (DEPs) and 212 differentially expressed metabolites (DEMs) were screened from Populus simonii × P. nigra leaves under H. cunea stress by transcriptome, proteomics and metabolomics analysis, respectively. GO and KEGG analysis showed that the DEGs and DEPs are associated with endopeptidase inhibitor activity, stress response, α-linolenic acid metabolism, phenylpropanoid biosynthesis and metabolic pathways, cysteine and methionine metabolism pathways and MAKP signaling pathway. Metabolomics analysis showed the most of DEMs were lipids and lipid molecules, and the pathways associated with transcriptome mainly include plant hormone signal transduction, α-linolenic acid metabolic pathway, amino sugar and nucleotide sugar metabolism, and phenylpropanoid biosynthesis. In particular, multi-omics analysis showed that several pathways such as α-linolenic acid metabolic, phenylpropanoid biosynthesis and metabolic pathway and cysteine and methionine metabolic pathway were significantly enriched in the three omics, which may play an important role in the resistance to pests in poplar.
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Affiliation(s)
- Jiahui Jiang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Gaofeng Fan
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Ruiqi Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Wenjing Yao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- Bamboo Research Institute, Nanjing Forestry University, Nanjing, China
| | - Boru Zhou
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Tingbo Jiang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
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Pérez-Hedo M, Gallego-Giraldo C, Forner-Giner MÁ, Ortells-Fabra R, Urbaneja A. Plant volatile-triggered defense in citrus against biotic stressors. FRONTIERS IN PLANT SCIENCE 2024; 15:1425364. [PMID: 39049855 PMCID: PMC11266131 DOI: 10.3389/fpls.2024.1425364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 06/18/2024] [Indexed: 07/27/2024]
Abstract
Plants employ sophisticated defense mechanisms, including releasing volatile organic compounds, to defend against biotic and abiotic stresses. These compounds play a crucial role in plant defense by attracting natural enemies and facilitating communication between plants to activate defense mechanisms. However, there has been no research on how exposure to these compounds activates defense mechanisms in citrus plants. To elucidate the underlying mechanisms governing citrus defensive activation, we conducted a molecular analysis of the rootstock Citrange carrizo [a hybrid of Citrus sinensis × Poncirus trifoliata] in response to defense activation by the volatile (Z)-3-hexenyl propanoate [(Z)-3-HP], utilizing a groundbreaking transcriptomic analysis involving the genomes of both parental species. Our results revealed significant gene expression changes, notably the overexpression of genes related to plant immunity, antioxidant activity, defense against herbivores, and tolerance to abiotic stress. Significantly, P. trifoliata contributed most notably to the hybrid's gene expression profile in response to (Z)-3-HP. Additionally, plants exposed to (Z)-3-HP repelled several citrus pests, attracted natural predators, and led to diminished performance of two key citrus pests. Our study emphasizes the complex molecular basis of volatile-triggered defenses in citrus and highlights the potential of plant volatiles in pest control strategies.
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Affiliation(s)
- Meritxell Pérez-Hedo
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, Moncada, Valencia, Spain
| | - Carolina Gallego-Giraldo
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, Moncada, Valencia, Spain
| | - María Ángeles Forner-Giner
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Citricultura y Producción Vegetal, Moncada, Valencia, Spain
| | - Raúl Ortells-Fabra
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, Moncada, Valencia, Spain
| | - Alberto Urbaneja
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, Moncada, Valencia, Spain
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Simard A, Gendjar M, Merewitz E, McGraw BA. Inducible defense phytohormones in annual bluegrass (Poa annua) and creeping bentgrass (Agrostis stolonifera) in response to annual bluegrass weevil (Listronotus maculicollis) infestation. JOURNAL OF ECONOMIC ENTOMOLOGY 2024:toae153. [PMID: 38981132 DOI: 10.1093/jee/toae153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 06/02/2024] [Accepted: 06/23/2024] [Indexed: 07/11/2024]
Abstract
The annual bluegrass weevil (Listronotus maculicollis) is the most damaging insect pest of short-mown turfgrass on golf courses in eastern North America. Listronotus maculicollis larvae cause limited visible damage as stem-borers (L1-3), compared to the crown-feeding (L4-5) developmental instars. Prolonged larval feeding results in discoloration and formation of irregular patches of dead turf, exposing soil on high-value playing surfaces (fairways, collars, tee boxes, and putting greens). Annual bluegrass (Poa annua) is highly susceptible to L. maculicollis compared to a tolerant alternate host plant, creeping bentgrass (Agrostis stolonifera). This study explored whether defense signaling phytohormones contribute to A. stolonifera tolerance in response to L. maculicollis. Concentrations (ng/g) of salicylic acid (SA), jasmonic acid (JA), jasmonic-isoleucine (JA-Ile), 12-oxophytodienoic acid (OPDA), and abscisic acid (ABA) were extracted from turfgrass (leaf, stem, and root) tissue samples as mean larval age reached 2nd (L2), 3rd (L3), and 4th (L4) instar. Poa annua infested with L. maculicollis larvae (L2-4) possessed significantly greater SA in above-ground tissues than A. stolonifera. Levels of constitutive JA, JA-Ile, OPDA, and ABA were significantly higher within non-infested A. stolonifera aboveground tissues compared to P. annua. Inducible defense phytohormones may play a role in P. annua susceptibility to L. maculicollis but are unlikely to provide tolerance in A. stolonifera. Additional studies in turfgrass breeding, particularly focusing on cultivar selection for increased constitutive JA content, could provide a non-chemical alternative management strategy for L. maculicollis for turfgrass managers.
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Affiliation(s)
- Audrey Simard
- Department of Entomology, Pennsylvania State University, University Park, PA, USA
| | - Megan Gendjar
- Department of Plant Soil and Microbial Science, Michigan State University, East Lansing, MI, USA
| | - Emily Merewitz
- Department of Plant Soil and Microbial Science, Michigan State University, East Lansing, MI, USA
| | - Benjamin A McGraw
- Department of Entomology, Pennsylvania State University, University Park, PA, USA
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA
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11
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Satake A, Hagiwara T, Nagano AJ, Yamaguchi N, Sekimoto K, Shiojiri K, Sudo K. Plant Molecular Phenology and Climate Feedbacks Mediated by BVOCs. ANNUAL REVIEW OF PLANT BIOLOGY 2024; 75:605-627. [PMID: 38382906 DOI: 10.1146/annurev-arplant-060223-032108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Climate change profoundly affects the timing of seasonal activities of organisms, known as phenology. The impact of climate change is not unidirectional; it is also influenced by plant phenology as plants modify atmospheric composition and climatic processes. One important aspect of this interaction is the emission of biogenic volatile organic compounds (BVOCs), which link the Earth's surface, atmosphere, and climate. BVOC emissions exhibit significant diurnal and seasonal variations and are therefore considered essential phenological traits. To understand the dynamic equilibrium arising from the interplay between plant phenology and climate, this review presents recent advances in comprehending the molecular mechanisms underpinning plant phenology and its interaction with climate. We provide an overview of studies investigating molecular phenology, genome-wide gene expression analyses conducted in natural environments, and how these studies revolutionize the concept of phenology, shifting it from observable traits to dynamic molecular responses driven by gene-environment interactions. We explain how this knowledge can be scaled up to encompass plant populations, regions, and even the globe by establishing connections between molecular phenology, changes in plant distribution, species composition, and climate.
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Affiliation(s)
- Akiko Satake
- Department of Biology, Faculty of Science, Kyushu University, Fukuoka, Japan;
| | - Tomika Hagiwara
- Department of Biology, Faculty of Science, Kyushu University, Fukuoka, Japan;
| | - Atsushi J Nagano
- Faculty of Agriculture, Ryukoku University, Otsu, Japan
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Nobutoshi Yamaguchi
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma, Japan
| | - Kanako Sekimoto
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Japan
| | | | - Kengo Sudo
- Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
- Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
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12
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Cham AK, Adams AK, Wadl PA, Ojeda-Zacarías MDC, Rutter WB, Jackson DM, Shoemaker DD, Yencho GC, Olukolu BA. Metagenome-enabled models improve genomic predictive ability and identification of herbivory-limiting genes in sweetpotato. HORTICULTURE RESEARCH 2024; 11:uhae135. [PMID: 38974189 PMCID: PMC11226878 DOI: 10.1093/hr/uhae135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/27/2024] [Indexed: 07/09/2024]
Abstract
Plant-insect interactions are often influenced by host- or insect-associated metagenomic community members. The relative abundance of insects and the microbes that modulate their interactions were obtained from sweetpotato (Ipomoea batatas) leaf-associated metagenomes using quantitative reduced representation sequencing and strain/species-level profiling with the Qmatey software. Positive correlations were found between whitefly (Bemisia tabaci) and its endosymbionts (Candidatus Hamiltonella defensa, Candidatus Portiera aleyrodidarum, and Rickettsia spp.) and negative correlations with nitrogen-fixing bacteria that implicate nitric oxide in sweetpotato-whitefly interaction. Genome-wide associations using 252 975 dosage-based markers, and metagenomes as a covariate to reduce false positive rates, implicated ethylene and cell wall modification in sweetpotato-whitefly interaction. The predictive abilities (PA) for whitefly and Ocypus olens abundance were high in both populations (68%-69% and 33.3%-35.8%, respectively) and 69.9% for Frankliniella occidentalis. The metagBLUP (gBLUP) prediction model, which fits the background metagenome-based Cao dissimilarity matrix instead of the marker-based relationship matrix (G-matrix), revealed moderate PA (35.3%-49.1%) except for O. olens (3%-10.1%). A significant gain in PA after modeling the metagenome as a covariate (gGBLUP, ≤11%) confirms quantification accuracy and that the metagenome modulates phenotypic expression and might account for the missing heritability problem. Significant gains in PA were also revealed after fitting allele dosage (≤17.4%) and dominance effects (≤4.6%). Pseudo-diploidized genotype data underperformed for dominance models. Including segregation-distorted loci (SDL) increased PA by 6%-17.1%, suggesting that traits associated with fitness cost might benefit from the inclusion of SDL. Our findings confirm the holobiont theory of host-metagenome co-evolution and underscore its potential for breeding within the context of G × G × E interactions.
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Affiliation(s)
- Alhagie K Cham
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
| | - Alison K Adams
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
- Genome Science and Technology, University of Tennessee, Knoxville, TN 37916, USA
- Department of Plant Pathology, University of Georgia, Griffin, GA 30223, USA
| | - Phillip A Wadl
- US Vegetable Laboratory, United States Department of Agriculture, Agriculture Research Service, Charleston, SC 29414, USA
| | - Ma del Carmen Ojeda-Zacarías
- Faculty of Agronomy, Autonomous University of Nuevo León, Francisco Villa s/n, Col. Ex Hacienda El Canadá, 66050, General Escobedo, Nuevo León, México
| | - William B Rutter
- US Vegetable Laboratory, United States Department of Agriculture, Agriculture Research Service, Charleston, SC 29414, USA
| | - D Michael Jackson
- US Vegetable Laboratory, United States Department of Agriculture, Agriculture Research Service, Charleston, SC 29414, USA
| | - D Dewayne Shoemaker
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
| | - G Craig Yencho
- Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Bode A Olukolu
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
- Genome Science and Technology, University of Tennessee, Knoxville, TN 37916, USA
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13
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Kumar V, Nadarajan S, Boddupally D, Wang R, Bar E, Davidovich-Rikanati R, Doron-Faigenboim A, Alkan N, Lewinsohn E, Elad Y, Oren-Shamir M. Phenylalanine treatment induces tomato resistance to Tuta absoluta via increased accumulation of benzenoid/phenylpropanoid volatiles serving as defense signals. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:84-99. [PMID: 38578218 DOI: 10.1111/tpj.16745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
Tuta absoluta ("leafminer"), is a major pest of tomato crops worldwide. Controlling this insect is difficult due to its efficient infestation, rapid proliferation, and resilience to changing weather conditions. Furthermore, chemical pesticides have only a short-term effect due to rapid development of T. absoluta strains. Here, we show that a variety of tomato cultivars, treated with external phenylalanine solutions exhibit high resistance to T. absoluta, under both greenhouse and open field conditions, at different locations. A large-scale metabolomic study revealed that tomato leaves absorb and metabolize externally given Phe efficiently, resulting in a change in their volatile profile, and repellence of T. absoluta moths. The change in the volatile profile is due to an increase in three phenylalanine-derived benzenoid phenylpropanoid volatiles (BPVs), benzaldehyde, phenylacetaldehyde, and 2-phenylethanol. This treatment had no effect on terpenes and green leaf volatiles, known to contribute to the fight against insects. Phe-treated plants also increased the resistance of neighboring non-treated plants. RNAseq analysis of the neighboring non-treated plants revealed an exclusive upregulation of genes, with enrichment of genes related to the plant immune response system. Exposure of tomato plants to either benzaldehyde, phenylacetaldehyde, or 2-phenylethanol, resulted in induction of genes related to the plant immune system that were also induced due to neighboring Phe-treated plants. We suggest a novel role of phenylalanine-derived BPVs as mediators of plant-insect interactions, acting as inducers of the plant defense mechanisms.
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Affiliation(s)
- Varun Kumar
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
- Center for Life Sciences, Mahindra University, Hyderabad, Telangana, 500043, India
| | - Stalin Nadarajan
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Dayakar Boddupally
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Ru Wang
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Einat Bar
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Rachel Davidovich-Rikanati
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Adi Doron-Faigenboim
- Department of Vegetable and Field Crops, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Noam Alkan
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Yigal Elad
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Michal Oren-Shamir
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
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14
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Rasool SG, Abdullah M, Li D, Yanping L. Relationship between secondary metabolites and insect loads in cabbage with different leaf shapes and positions. PHYTOCHEMICAL ANALYSIS : PCA 2024. [PMID: 38923178 DOI: 10.1002/pca.3406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 06/07/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024]
Abstract
INTRODUCTION Secondary metabolites in plants play a crucial role in defense mechanisms against insects, pests, and pathogens. These metabolites exhibit varying distributions within and among plant parts under different biotic and abiotic conditions. Understanding the intricate relationships between secondary metabolites and insect populations can be helpful for elucidating plant defense mechanisms and enhancing agricultural managing efficiencies. OBJECTIVE To investigate the influence of the glucosinolate profile in the leaves of three cabbage (Brassica oleracea var. capitata L.) varieties on insect loads. METHODS Glucosinolate profiles across different leaf positions (such as bottom, middle, and center) and leaf shapes (such as curly and non-curly leaf) of three cabbage varieties (Xiagan [XGA], Xiaguang [XGU], and Qiangxia [QIX]) were analyzed by using high-performance liquid chromatography-mass spectrometry (LC-MS). The insect loads were recorded by visually inspecting the upper and lower layers of each target leaf. RESULTS Increasing concentrations of four glucosinolates, namely, glucoiberin, progoitrin, glucoraphanin, and glucobrassicin, were positively related to insect loads. While increasing concentrations of the other four glucosinolates, such as neoglucobrassicin, 4-methoxyglucobrassicin, sinigrin, and gluconapin, were negatively related to insect loads. Furthermore, both glucosinolate synthesis and insect loads were significantly higher in the curly-shaped and middle-position leaves than in the non-curly-shaped and bottom- and central-position leaves across the cabbage varieties. CONCLUSION Differences in glucosinolate profiles across leaf positions and shapes strongly influenced the insect loads of the three Brassica varieties. This link may further extend our understanding of the real defense power of a particular variety against herbivore damage.
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Affiliation(s)
- Samreen Ghulam Rasool
- School of Ecological and Environmental Science, East China Normal University, Shanghai, China
| | - Muhammad Abdullah
- School of Ecological and Environmental Science, East China Normal University, Shanghai, China
| | - Dezhi Li
- School of Ecological and Environmental Science, East China Normal University, Shanghai, China
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Shanghai, China
- Institute of Eco-Chongming (IEC), Shanghai, China
- Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, Shanghai, China
| | - Liu Yanping
- School of Ecological and Environmental Science, East China Normal University, Shanghai, China
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Guedes BN, Krambeck K, Durazzo A, Lucarini M, Santini A, Oliveira MBPP, Fathi F, Souto EB. Natural antibiotics against antimicrobial resistance: sources and bioinspired delivery systems. Braz J Microbiol 2024:10.1007/s42770-024-01410-1. [PMID: 38888693 DOI: 10.1007/s42770-024-01410-1] [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: 12/21/2023] [Accepted: 05/29/2024] [Indexed: 06/20/2024] Open
Abstract
The current burden associated to multidrug resistance, and the emerging superbugs, result in a decreased and even loss of antibiotic efficacy, which poses significant challenges in the treatment of infectious diseases. This situation has created a high demand for the discovery of novel antibiotics that are both effective and safe. However, while antibiotics play a crucial role in preventing and treating diseases, they are also associated with adverse effects. The emergence of multidrug-resistant and the extensive appearance of drug-resistant microorganisms, has become one of the major hurdles in healthcare. Addressing this problem will require the development of at least 20 new antibiotics by 2060. However, the process of designing new antibiotics is time-consuming. To overcome the spread of drug-resistant microbes and infections, constant evaluation of innovative methods and new molecules is essential. Research is actively exploring alternative strategies, such as combination therapies, new drug delivery systems, and the repurposing of existing drugs. In addition, advancements in genomic and proteomic technologies are aiding in the identification of potential new drug targets and the discovery of new antibiotic compounds. In this review, we explore new sources of natural antibiotics from plants, algae other sources, and propose innovative bioinspired delivery systems for their use as an approach to promoting responsible antibiotic use and mitigate the spread of drug-resistant microbes and infections.
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Affiliation(s)
- Beatriz N Guedes
- Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Porto, 4050-313, Portugal
| | - Karolline Krambeck
- Health Sciences School, Guarda Polytechnic Institute, Rua da Cadeia, Guarda, 6300-035, Portugal
| | - Alessandra Durazzo
- CREA-Research Centre for Food and Nutrition, Via Ardeatina 546, Rome, 00178, Italy
| | - Massimo Lucarini
- CREA-Research Centre for Food and Nutrition, Via Ardeatina 546, Rome, 00178, Italy
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, Napoli, 80131, Italy
| | - M Beatriz P P Oliveira
- REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 280, Porto, 4050-313, Portugal
| | - Faezeh Fathi
- REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 280, Porto, 4050-313, Portugal.
| | - Eliana B Souto
- Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Porto, 4050-313, Portugal.
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16
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Zhao XR, Zhao DT, Zhang LY, Chang JH, Cui JH. Combining transcriptome and metabolome analysis to understand the response of sorghum to Melanaphis sacchari. BMC PLANT BIOLOGY 2024; 24:529. [PMID: 38862926 PMCID: PMC11165916 DOI: 10.1186/s12870-024-05229-8] [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] [Accepted: 05/31/2024] [Indexed: 06/13/2024]
Abstract
BACKGROUND The sorghum aphid Melanaphis sacchari (Zehntner) (Homoptera: Aphididae) is an important insect in the late growth phase of sorghum (Sorghum bicolor L.). However, the mechanisms of sorghum response to aphid infestation are unclear. RESULTS In this paper, the mechanisms of aphid resistance in different types of sorghum varieties were revealed by studying the epidermal cell structure and performing a transcriptome and metabolome association analysis of aphid-resistant and aphid-susceptible varieties. The epidermal cell results showed that the resistance of sorghum to aphids was positively correlated with epidermal cell regularity and negatively correlated with the intercellular space and leaf thickness. Transcriptome and metabolomic analyses showed that differentially expressed genes in the resistant variety HN16 and susceptible variety BTX623 were mainly enriched in the flavonoid biosynthesis pathway and differentially expressed metabolites were mainly related to isoflavonoid biosynthesis and flavonoid biosynthesis. The q-PCR results of key genes were consistent with the transcriptome expression results. Meanwhile, the metabolome test results showed that after aphidinfestation, naringenin and genistein were significantly upregulated in the aphid-resistant variety HN16 and aphid-susceptible variety BTX623 while luteolin was only significantly upregulated in BTX623. These results show that naringenin, genistein, and luteolin play important roles in plant resistance to aphid infestation. The results of exogenous spraying tests showed that a 1‰ concentration of naringenin and genistein is optimal for improving sorghum resistance to aphid feeding. CONCLUSIONS In summary, the physical properties of the sorghum leaf structure related to aphid resistance were studied to provide a reference for the breeding of aphid-resistant varieties. The flavonoid biosynthesis pathway plays an important role in the response of sorghum aphids and represents an important basis for the biological control of these pests. The results of the spraying experiment provide insights for developing anti-aphid substances in the future.
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Affiliation(s)
- Xin-Rui Zhao
- College of Agronomy, Hebei Agricultural University, Baoding, 071000, China
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Baoding, 071000, China
| | - Dong-Ting Zhao
- College of Agronomy, Hebei Agricultural University, Baoding, 071000, China
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Baoding, 071000, China
| | - Ling-Yu Zhang
- College of Agronomy, Hebei Agricultural University, Baoding, 071000, China
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Baoding, 071000, China
| | - Jin-Hua Chang
- College of Agronomy, Hebei Agricultural University, Baoding, 071000, China.
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Baoding, 071000, China.
| | - Jiang-Hui Cui
- College of Agronomy, Hebei Agricultural University, Baoding, 071000, China.
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Baoding, 071000, China.
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17
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Zhao Y, Sun T, Liu J, Zhang R, Yu Y, Zhou G, Liu J, Gao B. The Key Role of Plant Hormone Signaling Transduction and Flavonoid Biosynthesis Pathways in the Response of Chinese Pine ( Pinus tabuliformis) to Feeding Stimulation by Pine Caterpillar ( Dendrolimus tabulaeformis). Int J Mol Sci 2024; 25:6354. [PMID: 38928063 PMCID: PMC11203464 DOI: 10.3390/ijms25126354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/01/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
In nature, plants have developed a series of resistance mechanisms to face various external stresses. As understanding of the molecular mechanisms underlying plant resistance continues to deepen, exploring endogenous resistance in plants has become a hot topic in this field. Despite the multitude of studies on plant-induced resistance, how plants respond to stress under natural conditions remains relatively unclear. To address this gap, we investigated Chinese pine (Pinus tabuliformis) using pine caterpillar (Dendrolimus tabulaeformis) under natural conditions. Healthy Chinese pine trees, approximately 10 years old, were selected for studying induced resistance in Huangtuliangzi Forestry, Pingquan City, Chengde City, Hebei Province, China. Pine needles were collected at 2 h and 8 h after feeding stimulation (FS) via 10 pine caterpillars and leaf clipping control (LCC), to simulate mechanical damage caused by insect chewing for the quantification of plant hormones and transcriptome and metabolome assays. The results show that the different modes of treatments significantly influence the contents of JA and SA in time following treatment. Three types of differentially accumulated metabolites (DAMs) were found to be involved in the initial response, namely phenolic acids, lipids, and flavonoids. Weighted gene co-expression network analysis indicated that 722 differentially expressed genes (DEGs) are positively related to feeding stimulation and the specific enriched pathways are plant hormone signal transduction and flavonoid biosynthesis, among others. Two TIFY transcription factors (PtTIFY54 and PtTIFY22) and a MYB transcription factor (PtMYB26) were found to be involved in the interaction between plant hormones, mainly in the context of JA signal transduction and flavonoid biosynthesis. The results of this study provide an insight into how JA activates, serving as a reference for understanding the molecular mechanisms of resistance formation in conifers responding to mandibulate insects.
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Affiliation(s)
- Yanan Zhao
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Tianhua Sun
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Jie Liu
- College of Agronomy, Hebei Agricultural University, Baoding 071000, China;
| | - Ruibo Zhang
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Yongjie Yu
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Guona Zhou
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Junxia Liu
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
| | - Baojia Gao
- College of Forestry, Hebei Agricultural University, Baoding 071000, China; (Y.Z.); (T.S.); (R.Z.); (Y.Y.); (G.Z.); (J.L.)
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Kline O, Joshi NK. Microbial Symbiont-Based Detoxification of Different Phytotoxins and Synthetic Toxic Chemicals in Insect Pests and Pollinators. J Xenobiot 2024; 14:753-771. [PMID: 38921652 PMCID: PMC11204611 DOI: 10.3390/jox14020043] [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: 02/19/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024] Open
Abstract
Insects are the most diverse form of life, and as such, they interact closely with humans, impacting our health, economy, and agriculture. Beneficial insect species contribute to pollination, biological control of pests, decomposition, and nutrient cycling. Pest species can cause damage to agricultural crops and vector diseases to humans and livestock. Insects are often exposed to toxic xenobiotics in the environment, both naturally occurring toxins like plant secondary metabolites and synthetic chemicals like herbicides, fungicides, and insecticides. Because of this, insects have evolved several mechanisms of resistance to toxic xenobiotics, including sequestration, behavioral avoidance, and enzymatic degradation, and in many cases had developed symbiotic relationships with microbes that can aid in this detoxification. As research progresses, the important roles of these microbes in insect health and function have become more apparent. Bacterial symbionts that degrade plant phytotoxins allow host insects to feed on otherwise chemically defended plants. They can also confer pesticide resistance to their hosts, especially in frequently treated agricultural fields. It is important to study these interactions between insects and the toxic chemicals they are exposed to in order to further the understanding of pest insect resistance and to mitigate the negative effect of pesticides on nontarget insect species like Hymenopteran pollinators.
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Affiliation(s)
| | - Neelendra K. Joshi
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR 72701, USA
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Pastierovič F, Mogilicherla K, Hradecký J, Kalyniukova A, Dvořák O, Roy A, Tomášková I. Genome-Wide Transcriptomic and Metabolomic Analyses Unveiling the Defence Mechanisms of Populus tremula against Sucking and Chewing Insect Herbivores. Int J Mol Sci 2024; 25:6124. [PMID: 38892311 PMCID: PMC11172939 DOI: 10.3390/ijms25116124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Plants and insects coevolved as an evolutionarily successful and enduring association. The molecular arms race led to evolutionary novelties regarding unique mechanisms of defence and detoxification in plants and insects. While insects adopt mechanisms to conquer host defence, trees develop well-orchestrated and species-specific defence strategies against insect herbivory. However, current knowledge on the molecular underpinnings of fine-tuned tree defence responses against different herbivore insects is still restricted. In the current study, using a multi-omics approach, we unveiled the defence response of Populus tremula against aphids (Chaitophorus populialbae) and spongy moths (Lymantria dispar) herbivory. Comparative differential gene expression (DGE) analyses revealed that around 272 and 1203 transcripts were differentially regulated in P. tremula after moth and aphid herbivory compared to uninfested controls. Interestingly, 5716 transcripts were differentially regulated in P. tremula between aphids and moth infestation. Further investigation showed that defence-related stress hormones and their lipid precursors, transcription factors, and signalling molecules were over-expressed, whereas the growth-related counterparts were suppressed in P. tremula after aphid and moth herbivory. Metabolomics analysis documented that around 37% of all significantly abundant metabolites were associated with biochemical pathways related to tree growth and defence. However, the metabolic profiles of aphid and moth-fed trees were quite distinct, indicating species-specific response optimization. After identifying the suitable reference genes in P. tremula, the omics data were further validated using RT-qPCR. Nevertheless, our findings documented species-specific fine-tuning of the defence response of P. tremula, showing conservation on resource allocation for defence overgrowth under aphid and moth herbivory. Such findings can be exploited to enhance our current understanding of molecular orchestration of tree responses against herbivory and aid in developing insect pest resistance P. tremula varieties.
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Affiliation(s)
- Filip Pastierovič
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ 165 00 Praha, Suchdol, Czech Republic; (F.P.); (K.M.); (J.H.); (A.K.); (O.D.); (A.R.)
| | - Kanakachari Mogilicherla
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ 165 00 Praha, Suchdol, Czech Republic; (F.P.); (K.M.); (J.H.); (A.K.); (O.D.); (A.R.)
- ICAR-Indian Institute of Rice Research (IIRR), Rajendra Nagar, Hyderabad 500030, Telangana, India
| | - Jaromír Hradecký
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ 165 00 Praha, Suchdol, Czech Republic; (F.P.); (K.M.); (J.H.); (A.K.); (O.D.); (A.R.)
| | - Alina Kalyniukova
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ 165 00 Praha, Suchdol, Czech Republic; (F.P.); (K.M.); (J.H.); (A.K.); (O.D.); (A.R.)
| | - Ondřej Dvořák
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ 165 00 Praha, Suchdol, Czech Republic; (F.P.); (K.M.); (J.H.); (A.K.); (O.D.); (A.R.)
| | - Amit Roy
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ 165 00 Praha, Suchdol, Czech Republic; (F.P.); (K.M.); (J.H.); (A.K.); (O.D.); (A.R.)
| | - Ivana Tomášková
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ 165 00 Praha, Suchdol, Czech Republic; (F.P.); (K.M.); (J.H.); (A.K.); (O.D.); (A.R.)
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20
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Pizzo JS, Rutz T, Ojeda AS, Kartowikromo KY, Hamid AM, Simmons A, da Silva ALBR, Rodrigues C. Quantifying terpenes in tomato leaf extracts from different species using gas chromatography-mass spectrometry (GC-MS). Anal Biochem 2024; 689:115503. [PMID: 38453049 DOI: 10.1016/j.ab.2024.115503] [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: 02/09/2024] [Revised: 02/12/2024] [Accepted: 03/05/2024] [Indexed: 03/09/2024]
Abstract
Terpenes play a vital role in plant defense; tomato plants produce a diverse range of terpenes within specialized glandular trichomes, influencing interactions with herbivores, predators, and pollinators. This study employed two distinct methods, namely leaf dip and maceration, to extract trichomes from tomato leaves. Terpene quantification was carried out using Gas Chromatography-Mass Spectrometry (GC-MS). The leaf dip method proved effective in selectively targeting trichome content, revealing unique extraction patterns compared to maceration. The GC-MS method demonstrated high linearity, accuracy, sensitivity, and low limits of detection and quantification. Application of the method to different tomato species (Solanum pennellii, Solanum pimpinellifolium, Solanum galapagense, Solanum habrochaites, and Solanum lycopersicum) identified significant variation in terpene content among these species, highlighting the potential of specific accessions for breeding programs. Notably, the terpene α-zingiberene, known for its repellency against whiteflies, was found in high quantities (211.90-9155.13 μg g-1) in Solanum habrochaites accession PI209978. These findings provide valuable insights into terpenoid diversity for plant defense mechanisms, guiding future research on developing pest-resistant tomato cultivars. Additionally, the study underscores the broader applications of terpenes in agriculture.
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Affiliation(s)
- Jessica S Pizzo
- Department of Horticulture, Auburn University, Auburn, AL, 36849, USA
| | - Thiago Rutz
- Department of Horticulture, Auburn University, Auburn, AL, 36849, USA
| | - Ann S Ojeda
- Department of Geosciences, Auburn University, Auburn, AL, 36849, USA
| | | | - Ahmed M Hamid
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL, 36849, USA
| | - Alvin Simmons
- USDA-ARS, U.S., Vegetable Laboratory, Charleston, SC, 29414, USA
| | | | - Camila Rodrigues
- Department of Horticulture, Auburn University, Auburn, AL, 36849, USA.
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21
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Pavithran S, Murugan M, Mannu J, Sathyaseelan C, Balasubramani V, Harish S, Natesan S. Salivary gland transcriptomics of the cotton aphid Aphis gossypii and comparative analysis with other sap-sucking insects. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2024; 116:e22123. [PMID: 38860775 DOI: 10.1002/arch.22123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/08/2024] [Accepted: 05/17/2024] [Indexed: 06/12/2024]
Abstract
Aphids are sap-sucking insects responsible for crop losses and a severe threat to crop production. Proteins in the aphid saliva are integral in establishing an interaction between aphids and plants and are responsible for host plant adaptation. The cotton aphid, Aphis gossypii (Hemiptera: Aphididae) is a major pest of Gossypium hirsutum. Despite extensive studies of the salivary proteins of various aphid species, the components of A. gossypii salivary glands are unknown. In this study, we identified 123,008 transcripts from the salivary gland of A. gossypii. Among those, 2933 proteins have signal peptides with no transmembrane domain known to be secreted from the cell upon feeding. The transcriptome includes proteins with more comprehensive functions such as digestion, detoxification, regulating host defenses, regulation of salivary glands, and a large set of uncharacterized proteins. Comparative analysis of salivary proteins of different aphids and other insects with A. gossypii revealed that 183 and 88 orthologous clusters were common in the Aphididae and non-Aphididae groups, respectively. The structure prediction for highly expressed salivary proteins indicated that most possess an intrinsically disordered region. These results provide valuable reference data for exploring novel functions of salivary proteins in A. gossypii with their host interactions. The identified proteins may help develop a sustainable way to manage aphid pests.
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Affiliation(s)
- Shanmugasundram Pavithran
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, India
| | - Marimuthu Murugan
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, India
| | - Jayakanthan Mannu
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Chakkarai Sathyaseelan
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
- Livestrong Cancer Institutes, Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, Texas, USA
| | - Venkatasamy Balasubramani
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, India
| | - Sankarasubramanian Harish
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, India
| | - Senthil Natesan
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
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22
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Wang Y, Fuentes RR, van Rengs WMJ, Effgen S, Zaidan MWAM, Franzen R, Susanto T, Fernandes JB, Mercier R, Underwood CJ. Harnessing clonal gametes in hybrid crops to engineer polyploid genomes. Nat Genet 2024; 56:1075-1079. [PMID: 38741016 PMCID: PMC11176054 DOI: 10.1038/s41588-024-01750-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 04/09/2024] [Indexed: 05/16/2024]
Abstract
Heterosis boosts crop yield; however, harnessing additional progressive heterosis in polyploids is challenging for breeders. We bioengineered a 'mitosis instead of meiosis' (MiMe) system that generates unreduced, clonal gametes in three hybrid tomato genotypes and used it to establish polyploid genome design. Through the hybridization of MiMe hybrids, we generated '4-haplotype' plants that encompassed the complete genetics of their four inbred grandparents, providing a blueprint for exploiting polyploidy in crops.
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Affiliation(s)
- Yazhong Wang
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Roven Rommel Fuentes
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Willem M J van Rengs
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Sieglinde Effgen
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | | | - Rainer Franzen
- Central Microscopy (CeMic), Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Tamara Susanto
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | | | - Raphael Mercier
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Charles J Underwood
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany.
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23
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Suissa JS, Li FW, Moreau CS. Convergent evolution of fern nectaries facilitated independent recruitment of ant-bodyguards from flowering plants. Nat Commun 2024; 15:4392. [PMID: 38789437 PMCID: PMC11126701 DOI: 10.1038/s41467-024-48646-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Plant-herbivore interactions reciprocally influence species' evolutionary trajectories. These interactions have led to many physical and chemical defenses across the plant kingdom. Some plants have even evolved indirect defense strategies to outsource their protection to ant bodyguards by bribing them with a sugary reward (nectar). Identifying the evolutionary processes underpinning these indirect defenses provide insight into the evolution of plant-animal interactions. Using a cross-kingdom, phylogenetic approach, we examined the convergent evolution of ant-guarding nectaries across ferns and flowering plants. Here, we discover that nectaries originated in ferns and flowering plants concurrently during the Cretaceous, coinciding with the rise of plant associations in ants. While nectaries in flowering plants evolved steadily through time, ferns showed a pronounced lag of nearly 100 My between their origin and subsequent diversification in the Cenozoic. Importantly, we find that as ferns transitioned from the forest floor into the canopy, they secondarily recruited ant bodyguards from existing ant-angiosperm relationships.
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Affiliation(s)
- Jacob S Suissa
- Department of Ecology and Evolutionary Biology, University of Tennessee Knoxville, Knoxville, TN, USA.
| | - Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, USA
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
| | - Corrie S Moreau
- Department of Ecology and Evolutionary Biology Cornell University, Ithaca, NY, USA
- Department of Entomology, Cornell University, Ithaca, NY, USA
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24
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Ahsan SM, Injamum-Ul-Hoque M, Das AK, Rahman MM, Mollah MMI, Paul NC, Choi HW. Plant-Entomopathogenic Fungi Interaction: Recent Progress and Future Prospects on Endophytism-Mediated Growth Promotion and Biocontrol. PLANTS (BASEL, SWITZERLAND) 2024; 13:1420. [PMID: 38794490 PMCID: PMC11124879 DOI: 10.3390/plants13101420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024]
Abstract
Entomopathogenic fungi, often acknowledged primarily for their insecticidal properties, fulfill diverse roles within ecosystems. These roles encompass endophytism, antagonism against plant diseases, promotion of the growth of plants, and inhabitation of the rhizosphere, occurring both naturally and upon artificial inoculation, as substantiated by a growing body of contemporary research. Numerous studies have highlighted the beneficial aspects of endophytic colonization. This review aims to systematically organize information concerning the direct (nutrient acquisition and production of phytohormones) and indirect (resistance induction, antibiotic and secondary metabolite production, siderophore production, and mitigation of abiotic and biotic stresses) implications of endophytic colonization. Furthermore, a thorough discussion of these mechanisms is provided. Several challenges, including isolation complexities, classification of novel strains, and the impact of terrestrial location, vegetation type, and anthropogenic reluctance to use fungal entomopathogens, have been recognized as hurdles. However, recent advancements in biotechnology within microbial research hold promising solutions to many of these challenges. Ultimately, the current constraints delineate potential future avenues for leveraging endophytic fungal entomopathogens as dual microbial control agents.
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Affiliation(s)
- S. M. Ahsan
- Department of Plant Medicals, Andong National University, Andong 36729, Republic of Korea;
| | - Md. Injamum-Ul-Hoque
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea; (M.I.-U.-H.); (A.K.D.)
| | - Ashim Kumar Das
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea; (M.I.-U.-H.); (A.K.D.)
| | - Md. Mezanur Rahman
- Department of Plant and Soil Science, Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, TX 79409, USA;
| | - Md. Mahi Imam Mollah
- Department of Entomology, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh;
| | - Narayan Chandra Paul
- Kumho Life Science Laboratory, Chonnam National University, Gwangju 61186, Republic of Korea;
| | - Hyong Woo Choi
- Department of Plant Medicals, Andong National University, Andong 36729, Republic of Korea;
- Institute of Cannabis Biotechnology, Andong National University, Andong 36729, Republic of Korea
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25
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Miano RN, Dekker T, Rohwer E, Biasazin TD, Ndlela S, Yusuf AA, Cheseto X, Mohamed SA. Mango headspace volatiles trigger differential responses of the mango fruit fly Ceratitis cosyra and its parasitoids. Heliyon 2024; 10:e30068. [PMID: 38707327 PMCID: PMC11066407 DOI: 10.1016/j.heliyon.2024.e30068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 04/14/2024] [Accepted: 04/18/2024] [Indexed: 05/07/2024] Open
Abstract
Before the introduction of Bactrocera dorsalis (Hendel) to sub-Saharan Africa, Ceratitis cosyra (Walker) was economically the most important pest in mango farming. Its native natural enemy, the solitary parasitoid Psyttalia cosyrae (Wilkinson), played a crucial role in C. cosyra bio-control, later complemented by the exotic parasitoids Diachasmimorpha longicaudata (Ashmead) and Fopius arisanus (Sonan) among Integrated Pest Management (IPM) systems. To understand the in situ mango-C. cosyra-parasitoid tritrophic interaction, we assessed the responses of the fruit fly and the three parasitoids to headspace volatiles from various mango conditions. These conditions included non-infested mature unripe mangoes, C. cosyra-infested mangoes, 7th- and 9th-day post-infestation mangoes, non-infested ripe mangoes of three varieties (Kent, Apple, and Haden), and clean air (blank). We also compared the fruit fly's performance in the mango varieties and identified the chemical profiles of mango headspace volatiles. Ceratitis cosyra was attracted to both infested and non-infested mangoes (66-84 % of responsive C. cosyra) and showed superior performance in Kent mango (72.1 % of the 287 puparia recovered) compared to Apple and Haden varieties. Fopius arisanus displayed a stronger attraction to the volatiles of C. cosyra-infested mangoes (68-70 %), while P. cosyrae and D. longicaudata were significantly attracted to the 9th-day post-infestation mangoes (68-78 %) compared to non-infested mango volatiles. Gas chromatography-mass spectroscopy showed substantial quantitative and qualitative differences in volatile profiles among mango treatments. Esters predominated in non-infested ripe, 7th- and 9th-day post-infestation mangoes, while monoterpenes and sesquiterpenes were most dominant in the other treatments. The in situ experiments underscored varying preferences of the species for mango headspace volatiles and their subsequent treatments. These results provide valuable insights for further exploration, specifically in identifying the key volatiles responsible for species responses, to facilitate the development of applicable selective semiochemicals for managing species of African fruit fly.
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Affiliation(s)
- Raphael Njurai Miano
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
- Department of Chemistry, Faculty of Natural and Agricultural Science, University of Pretoria, Private Bag X20, Hatfield, 0028, South Africa
| | - Teun Dekker
- Unit of Chemical Ecology, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, P.O. Box 102, 230 53, Alnarp, Sweden
| | - Egmont Rohwer
- Department of Chemistry, Faculty of Natural and Agricultural Science, University of Pretoria, Private Bag X20, Hatfield, 0028, South Africa
| | - Tibebe Dejene Biasazin
- Unit of Chemical Ecology, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, P.O. Box 102, 230 53, Alnarp, Sweden
| | - Shepard Ndlela
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
| | - Abdullahi Ahmed Yusuf
- Department of Zoology and Entomology, Faculty of Natural and Agricultural Science, University of Pretoria, Private Bag X20, Hatfield, 0028, South Africa
| | - Xavier Cheseto
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
| | - Samira A. Mohamed
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
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26
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Chi Y, Zhang H, Chen S, Cheng Y, Zhang X, Jia D, Chen Q, Chen H, Wei T. Leafhopper salivary carboxylesterase suppresses JA-Ile synthesis to facilitate initial arbovirus transmission in rice phloem. PLANT COMMUNICATIONS 2024:100939. [PMID: 38725245 DOI: 10.1016/j.xplc.2024.100939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/16/2024] [Accepted: 05/01/2024] [Indexed: 06/09/2024]
Abstract
Plant jasmonoyl-L-isoleucine (JA-Ile) is a major defense signal against insect feeding, but whether or how insect salivary effectors suppress JA-Ile synthesis and thus facilitate viral transmission in the plant phloem remains elusive. Insect carboxylesterases (CarEs) are the third major family of detoxification enzymes. Here, we identify a new leafhopper CarE, CarE10, that is specifically expressed in salivary glands and is secreted into the rice phloem as a saliva component. Leafhopper CarE10 directly binds to rice jasmonate resistant 1 (JAR1) and promotes its degradation by the proteasome system. Moreover, the direct association of CarE10 with JAR1 clearly impairs JAR1 enzyme activity for conversion of JA to JA-Ile in an in vitro JA-Ile synthesis system. A devastating rice reovirus activates and promotes the co-secretion of virions and CarE10 via virus-induced vesicles into the saliva-storing salivary cavities of the leafhopper vector and ultimately into the rice phloem to establish initial infection. Furthermore, a virus-mediated increase in CarE10 secretion or overexpression of CarE10 in transgenic rice plants causes reduced levels of JAR1 and thus suppresses JA-Ile synthesis, promoting host attractiveness to insect vectors and facilitating initial viral transmission. Our findings provide insight into how the insect salivary protein CarE10 suppresses host JA-Ile synthesis to promote initial virus transmission in the rice phloem.
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Affiliation(s)
- Yunhua Chi
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Hongxiang Zhang
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Siyu Chen
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Yu Cheng
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Xiaofeng Zhang
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Dongsheng Jia
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Qian Chen
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Hongyan Chen
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Taiyun Wei
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
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Ullah S, Rahman W, Ullah F, Ullah A, Ahmad G, Ijaz M, Ullah H, Sharafmal DM. The HABD: Home of All Biological Databases Empowering Biological Research With Cutting-Edge Database Systems. Curr Protoc 2024; 4:e1063. [PMID: 38808697 DOI: 10.1002/cpz1.1063] [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] [Indexed: 05/30/2024]
Abstract
The emergence of computer technologies and computing power has led to the development of several database systems that provide standardized access to vast quantities of data, making it possible to collect, search, index, evaluate, and extract useful knowledge across various fields. The Home of All Biological Databases (HABD) has been established as a continually expanding platform that aims to store, organize, and distribute biological data in a searchable manner, removing all dead and non-accessible data. The platform meticulously categorizes data into various categories, such as COVID-19 Pandemic Database (CO-19PDB), Database relevant to Human Research (DBHR), Cancer Research Database (CRDB), Latest Database of Protein Research (LDBPR), Fungi Databases Collection (FDBC), and many other databases that are categorized based on biological phenomena. It currently provides a total of 22 databases, including 6 published, 5 submitted, and the remaining in various stages of development. These databases encompass a range of areas, including phytochemical-specific and plastic biodegradation databases. HABD is equipped with search engine optimization (SEO) analyzer and Neil Patel tools, which ensure excellent SEO and high-speed value. With timely updates, HABD aims to facilitate the processing and visualization of data for scientists, providing a one-stop-shop for all biological databases. Computer platforms, such as PhP, html, CSS, Java script and Biopython, are used to build all the databases. © 2024 Wiley Periodicals LLC.
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Affiliation(s)
- Shahid Ullah
- S-Khan Lab, Mardan, Khyber Pakhtunkhwa, Pakistan
| | | | - Farhan Ullah
- S-Khan Lab, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Anees Ullah
- S-Khan Lab, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Gulzar Ahmad
- S-Khan Lab, Mardan, Khyber Pakhtunkhwa, Pakistan
| | | | - Hameed Ullah
- S-Khan Lab, Mardan, Khyber Pakhtunkhwa, Pakistan
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28
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Yao H, Gao S, Sun T, Zhou G, Lu C, Gao B, Chen W, Liang Y. Transcriptomic analysis of the defense response in "Cabernet Sauvignon" grape leaf induced by Apolygus lucorum feeding. PLANT DIRECT 2024; 8:e590. [PMID: 38779180 PMCID: PMC11108798 DOI: 10.1002/pld3.590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/14/2024] [Accepted: 04/10/2024] [Indexed: 05/25/2024]
Abstract
To investigate the molecular mechanism of the defense response of "Cabernet Sauvignon" grapes to feeding by Apolygus lucorum, high-throughput sequencing technology was used to analyze the transcriptome of grape leaves under three different treatments: feeding by A. lucorum, puncture injury, and an untreated control. The research findings indicated that the differentially expressed genes were primarily enriched in three aspects: cellular composition, molecular function, and biological process. These genes were found to be involved in 42 metabolic pathways, particularly in plant hormone signaling metabolism, plant-pathogen interaction, MAPK signaling pathway, and other metabolic pathways associated with plant-induced insect resistance. Feeding by A. lucorum stimulated and upregulated a significant number of genes related to jasmonic acid and calcium ion pathways, suggesting their crucial role in the defense molecular mechanism of "Cabernet Sauvignon" grapes. The consistency between the gene expression and transcriptome sequencing results further supports these findings. This study provides a reference for the further exploration of the defense response in "Cabernet Sauvignon" grapes by elucidating the expression of relevant genes during feeding by A. lucorum.
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Affiliation(s)
- Heng Yao
- College of Agronomy and BiotechnologyHebei Normal University of Science and TechnologyChangliHebeiChina
- Hebei Key Laboratory of Crop Stress Biology (in Preparation)ChangliHebeiChina
| | - Suhong Gao
- College of Agronomy and BiotechnologyHebei Normal University of Science and TechnologyChangliHebeiChina
- Hebei Key Laboratory of Crop Stress Biology (in Preparation)ChangliHebeiChina
| | - Tianhua Sun
- College of ForestryHebei Agricultural UniversityBaodingHebeiChina
| | - Guona Zhou
- College of ForestryHebei Agricultural UniversityBaodingHebeiChina
| | - Changkuan Lu
- College of Agronomy and BiotechnologyHebei Normal University of Science and TechnologyChangliHebeiChina
| | - Baojia Gao
- College of ForestryHebei Agricultural UniversityBaodingHebeiChina
| | - Wenshu Chen
- College of Agronomy and BiotechnologyHebei Normal University of Science and TechnologyChangliHebeiChina
- Hebei Key Laboratory of Crop Stress Biology (in Preparation)ChangliHebeiChina
| | - Yiming Liang
- College of Agronomy and BiotechnologyHebei Normal University of Science and TechnologyChangliHebeiChina
- Hebei Key Laboratory of Crop Stress Biology (in Preparation)ChangliHebeiChina
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29
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Endo H, Tsuneto K, Mang D, Zhang W, Yamagishi T, Ito K, Nagata S, Sato R. Molecular basis of host plant recognition by silkworm larvae. JOURNAL OF INSECT PHYSIOLOGY 2024; 154:104628. [PMID: 38387524 DOI: 10.1016/j.jinsphys.2024.104628] [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: 01/23/2024] [Revised: 02/19/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Herbivorous insects can identify their host plants by sensing plant secondary metabolites as chemical cues. We previously reported the two-factor host acceptance system of the silkworm Bombyx mori larvae. The chemosensory neurons in the maxillary palp (MP) of the larvae detect mulberry secondary metabolites, chlorogenic acid (CGA), and isoquercetin (ISQ), with ultrahigh sensitivity, for host plant recognition and feeding initiation. Nevertheless, the molecular basis for the ultrasensitive sensing of these compounds remains unknown. In this study, we demonstrated that two gustatory receptors (Grs), BmGr6 and BmGr9, are responsible for sensing the mulberry compounds with attomolar sensitivity for host plant recognition by silkworm larvae. Calcium imaging assay using cultured cells expressing the silkworm putative sugar receptors (BmGr4-10) revealed that BmGr6 and BmGr9 serve as receptors for CGA and ISQ with attomolar sensitivity in human embryonic kidney 293T cells. CRISPR/Cas9-mediated knockout (KO) of BmGr6 and BmGr9 resulted in a low probability of making a test bite of the mulberry leaves, suggesting that they lost the ability to recognize host leaves. Electrophysiological recordings showed that the loss of host recognition ability in the Gr-KO strains was due to a drastic decrease in MP sensitivity toward ISQ in BmGr6-KO larvae and toward CGA and ISQ in BmGr9-KO larvae. Our findings have revealed that the two Grs, previously considered to be sugar receptors, are molecules responsible for detecting plant phenolics in host plant recognition.
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Affiliation(s)
- Haruka Endo
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan; Department of Integrated Bioscience, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan.
| | - Kana Tsuneto
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Dingze Mang
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan; College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Wenjing Zhang
- College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Takayuki Yamagishi
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Katsuhiko Ito
- Department of Science of Biological Production, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu,Tokyo 183-8509, Japan
| | - Shinji Nagata
- Department of Integrated Bioscience, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan
| | - Ryoichi Sato
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan.
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Jindřichová B, Rubil N, Rezek J, Ourry M, Hauser TP, Burketová L. Does fungal infection increase the palatability of oilseed rape to insects? PEST MANAGEMENT SCIENCE 2024; 80:2480-2494. [PMID: 38436531 DOI: 10.1002/ps.7998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/28/2023] [Accepted: 01/26/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Multiple and simultaneous attacks by pathogens and insect pests frequently occur in nature. Plants respond to biotic stresses by activating distinct defense mechanisms, but little is known about how plants cope with multiple stresses. The focus of this study was the combined interaction of fungal infection caused by Leptosphaeria maculans (synonym Plenodomus lingam) and arthropod infestation by the diamondback moth (Plutella xylostella) in oilseed rape (Brassica napus). We hypothesized that infection by the fungal pathogen L. maculans could alter oilseed rape palatability to P. xylostella-chewing caterpillars. Feeding preference tests were complemented with analyses of defense gene transcription, and levels of glucosinolates (GLSs) and volatile organic compounds (VOCs) in L. maculans-inoculated and non-inoculated (control) leaves to determine possible causes of larval choice. RESULTS Caterpillars preferred true leaves to cotyledons, hence true leaves were used for further experiments. True leaves inoculated with L. maculans were more palatable to caterpillars over control leaves during the early stage of infection at 3 days post inoculation (dpi), but this preference disappeared in the later stages of infection at 7 dpi. In parallel, genes involved in the salicylic acid and ethylene pathways were up-regulated in L. maculans-inoculated leaves at 3 and 7 dpi; L. maculans increased the level of total aliphatic GLSs, specifically glucobrassicanapin, and decreased the level of glucoiberin at 3 dpi and altered the content of specific VOCs. A group of 55 VOCs with the highest variability between treatments was identified. CONCLUSION We suggest that the P. xylostella preference for L. maculans-inoculated leaves in the early stage of disease development could be caused by the underlying mechanisms leading to changes in metabolic composition. Further research should pinpoint the compounds responsible for driving larval preference and evaluate whether the behavior of the adult moths, i.e. the stage that makes the first choice regarding host plant selection in field conditions, correlates with our results on larval host acceptance. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Barbora Jindřichová
- Institute of Experimental Botany, Czech Academy of Sciences, Prague, Czech Republic
| | - Nikoleta Rubil
- Institute of Experimental Botany, Czech Academy of Sciences, Prague, Czech Republic
- Department of Plant and Environmental Sciences, Copenhagen University, Copenhagen, Denmark
- Department of Plant Protection, Czech University of Life Sciences in Prague, Prague, Czech Republic
| | - Jan Rezek
- Institute of Experimental Botany, Czech Academy of Sciences, Prague, Czech Republic
| | - Morgane Ourry
- Department of Plant and Environmental Sciences, Copenhagen University, Copenhagen, Denmark
| | - Thure Pavlo Hauser
- Department of Plant and Environmental Sciences, Copenhagen University, Copenhagen, Denmark
| | - Lenka Burketová
- Institute of Experimental Botany, Czech Academy of Sciences, Prague, Czech Republic
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Ali J, Mukarram M, Ojo J, Dawam N, Riyazuddin R, Ghramh HA, Khan KA, Chen R, Kurjak D, Bayram A. Harnessing Phytohormones: Advancing Plant Growth and Defence Strategies for Sustainable Agriculture. PHYSIOLOGIA PLANTARUM 2024; 176:e14307. [PMID: 38705723 DOI: 10.1111/ppl.14307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 05/07/2024]
Abstract
Phytohormones, pivotal regulators of plant growth and development, are increasingly recognized for their multifaceted roles in enhancing crop resilience against environmental stresses. In this review, we provide a comprehensive synthesis of current research on utilizing phytohormones to enhance crop productivity and fortify their defence mechanisms. Initially, we introduce the significance of phytohormones in orchestrating plant growth, followed by their potential utilization in bolstering crop defences against diverse environmental stressors. Our focus then shifts to an in-depth exploration of phytohormones and their pivotal roles in mediating plant defence responses against biotic stressors, particularly insect pests. Furthermore, we highlight the potential impact of phytohormones on agricultural production while underscoring the existing research gaps and limitations hindering their widespread implementation in agricultural practices. Despite the accumulating body of research in this field, the integration of phytohormones into agriculture remains limited. To address this discrepancy, we propose a comprehensive framework for investigating the intricate interplay between phytohormones and sustainable agriculture. This framework advocates for the adoption of novel technologies and methodologies to facilitate the effective deployment of phytohormones in agricultural settings and also emphasizes the need to address existing research limitations through rigorous field studies. By outlining a roadmap for advancing the utilization of phytohormones in agriculture, this review aims to catalyse transformative changes in agricultural practices, fostering sustainability and resilience in agricultural settings.
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Affiliation(s)
- Jamin Ali
- College of Plant Protection, Jilin Agricultural University, Changchun, PR China
| | - Mohammad Mukarram
- Food and Plant Biology Group, Department of Plant Biology, Universidad de la República, Montevideo, Uruguay
| | - James Ojo
- Department of Crop Production, Kwara State University, Malete, Nigeria
| | - Nancy Dawam
- Department of Zoology, Faculty of Natural and Applied Sciences, Plateau State University Bokkos, Diram, Nigeria
| | | | - Hamed A Ghramh
- Centre of Bee Research and its Products, Research Centre for Advanced Materials Science, King Khalid University, Abha, Saudi Arabia
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Khalid Ali Khan
- Centre of Bee Research and its Products, Research Centre for Advanced Materials Science, King Khalid University, Abha, Saudi Arabia
- Applied College, King Khalid University, Abha, Saudi Arabia
| | - Rizhao Chen
- College of Plant Protection, Jilin Agricultural University, Changchun, PR China
| | - Daniel Kurjak
- Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
- Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
| | - Ahmet Bayram
- Plant Protection, Faculty of Agriculture, Technical University in Zvolen, Zvolen, Slovakia
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Pastierovič F, Kalyniukova A, Hradecký J, Dvořák O, Vítámvás J, Mogilicherla K, Tomášková I. Biochemical Responses in Populus tremula: Defending against Sucking and Leaf-Chewing Insect Herbivores. PLANTS (BASEL, SWITZERLAND) 2024; 13:1243. [PMID: 38732458 PMCID: PMC11085190 DOI: 10.3390/plants13091243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024]
Abstract
The main biochemical traits were estimated in poplar leaves under biotic attack (aphids and spongy moth infestation). Changes in the abundance of bioactive compounds in genetically uniform individuals of European aspen (Populus tremula), such as proline, polyphenolic compounds, chlorophylls a and b, and volatile compounds, were determined between leaves damaged by sucking insects (aphid-Chaitophorus nassonowi) and chewing insects (spongy moth-Lymantria dispar) compared to uninfected leaves. Among the nine analyzed phenolic compounds, only catechin and procyanidin showed significant differences between the control leaves and leaves affected by spongy moths or aphids. GC-TOF-MS volatile metabolome analysis showed the clear separation of the control versus aphids-infested and moth-infested leaves. In total, the compounds that proved to have the highest explanatory power for aphid-infested leaves were 3-hexenal and 5-methyl-2-furanone, and for moth-infested leaves, trans-α-farnesene and 4-cyanocyclohexane. The aphid-infested leaves contained around half the amount of chlorophylls and twice the amount of proline compared to uninfected leaves, and these results evidenced that aphids influence plant physiology more than chewing insects.
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Affiliation(s)
- Filip Pastierovič
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Praha, Czech Republic; (A.K.); (J.H.); (O.D.); (J.V.); or (K.M.); (I.T.)
| | - Alina Kalyniukova
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Praha, Czech Republic; (A.K.); (J.H.); (O.D.); (J.V.); or (K.M.); (I.T.)
| | - Jaromír Hradecký
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Praha, Czech Republic; (A.K.); (J.H.); (O.D.); (J.V.); or (K.M.); (I.T.)
| | - Ondřej Dvořák
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Praha, Czech Republic; (A.K.); (J.H.); (O.D.); (J.V.); or (K.M.); (I.T.)
| | - Jan Vítámvás
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Praha, Czech Republic; (A.K.); (J.H.); (O.D.); (J.V.); or (K.M.); (I.T.)
| | - Kanakachari Mogilicherla
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Praha, Czech Republic; (A.K.); (J.H.); (O.D.); (J.V.); or (K.M.); (I.T.)
- ICAR-Indian Institute of Rice Research (IIRR), Rajendra Nagar, Hyderabad 500030, Telangana, India
| | - Ivana Tomášková
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Praha, Czech Republic; (A.K.); (J.H.); (O.D.); (J.V.); or (K.M.); (I.T.)
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Liu XY, Cai XY, Wu HJ, Wan Y, Wei SF, Xu HJ. Salivary proteins NlSP5 and NlSP7 are required for optimal feeding and fitness of the brown planthopper, Nilaparvata lugens. PEST MANAGEMENT SCIENCE 2024. [PMID: 38629775 DOI: 10.1002/ps.8134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 03/15/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Saliva has a crucial role in determining the compatibility between piercing-sucking insects and their hosts. The brown planthopper (BPH) Nilaparvata lugens, a notorious pest of rice in East and Southeast Asia, secretes gelling and watery saliva when feeding on rice sap. Nlsalivap-5 (NlSP5) and Nlsalivap-7 (NlSP7) were identified as potential planthopper-specific gelling saliva components, but their biological functions remain unknown. RESULTS Here, we showed by transcriptomic analyses that NlSP5 and NlSP7 were biasedly expressed in the salivary glands of BPHs. Using the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9-mediated genome-editing system, we constructed NlSP5 and NlSP7 homozygous mutants (NlSP5-/- and NlSP7-/-). Electrical penetration graph assay showed that NlSP5-/- and NlSP7-/- mutants exhibited abnormal probing and feeding behaviors. Bioassays revealed that the loss-of-function of NlSP5 and NlSP7 significantly reduced the fitness of BPHs, with extended developmental duration, shortened lifespan, reduced weight, and impaired fecundity and hatching rates. CONCLUSION These findings deepen our understanding of the BPH-host interaction and may provide potential targets for the management of rice planthoppers. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Xin-Yang Liu
- State Key Laboratory of Rice Biology and Breeding, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Xin-Yu Cai
- State Key Laboratory of Rice Biology and Breeding, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Hui-Jie Wu
- State Key Laboratory of Rice Biology and Breeding, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Yi Wan
- State Key Laboratory of Rice Biology and Breeding, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Sheng-Fei Wei
- State Key Laboratory of Rice Biology and Breeding, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Hai-Jun Xu
- State Key Laboratory of Rice Biology and Breeding, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
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Yang S, Xue S, Shan L, Fan S, Sun L, Dong Y, Li S, Gao Y, Qi Y, Yang L, An M, Wang F, Pang J, Zhang W, Weng Y, Liu X, Ren H. The CsTM alters multicellular trichome morphology and enhances resistance against aphid by interacting with CsTIP1;1 in cucumber. J Adv Res 2024:S2090-1232(24)00151-6. [PMID: 38609051 DOI: 10.1016/j.jare.2024.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024] Open
Abstract
The multicellular trichomes of cucumber (Cucumis sativus L.) serve as the primary defense barrier against external factors, whose impact extends beyond plant growth and development to include commercial characteristics of fruits. The aphid (Aphis gossypii Glover) is one of prominent pests in cucumber cultivation. However, the relationship between physical properties of trichomes and the aphid resistance at molecular level remains largely unexplored. Here, a spontaneous mutant trichome morphology (tm) was characterized by increased susceptibility towards aphid. Further observations showed the tm exhibited a higher and narrower trichome base, which was significantly distinguishable from that in wild-type (WT). We conducted map-based cloning and identified the candidate, CsTM, encoding a C-lectin receptor-like kinase. The knockout mutant demonstrated the role of CsTM in trichome morphogenesis. The presence of SNP does not regulate the relative expression of CsTM, but diminishes the CsTM abundance of membrane proteins in tm. Interestingly, CsTM was found to interact with CsTIP1;1, which encodes an aquaporin with extensive reports in plant resistance and growth development. The subsequent aphid resistance experiments revealed that both CsTM and CsTIP1;1 regulated the development of trichomes and conferred resistance against aphid by affecting cytoplasmic H2O2 contents. Transcriptome analysis revealed a significant enrichment of genes associated with pathogenesis, calcium binding and cellulose synthase. Overall, our study elucidates an unidentified mechanism that CsTM-CsTIP1;1 alters multicellular trichome morphology and enhances resistance against aphid, thus providing a wholly new perspective for trichome morphogenesis in cucumber.
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Affiliation(s)
- Songlin Yang
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Shudan Xue
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Li Shan
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Shanshan Fan
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Lei Sun
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Yuming Dong
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Sen Li
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Yiming Gao
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Yu Qi
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Lin Yang
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Menghang An
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Fang Wang
- College of Horticulture, China Agricultural University, Beijing 100193, PR China
| | - Jin'an Pang
- Tianjin Derit Seeds Co. Ltd, Tianjin 300384, PR China
| | - Wenzhu Zhang
- Tianjin Derit Seeds Co. Ltd, Tianjin 300384, PR China
| | - Yiqun Weng
- USDA‑ARS Vegetable Crops Research Unit, Horticulture Department, University of Wisconsin-Madison, Madison, USA
| | - Xingwang Liu
- College of Horticulture, China Agricultural University, Beijing 100193, PR China.
| | - Huazhong Ren
- College of Horticulture, China Agricultural University, Beijing 100193, PR China.
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Vasquez A, Alaniz A, Dearth R, Kariyat R. Continuous mowing differentially affects floral defenses in the noxious and invasive weed Solanum elaeagnifolium in its native range. Sci Rep 2024; 14:8133. [PMID: 38584186 PMCID: PMC10999409 DOI: 10.1038/s41598-024-58672-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/02/2024] [Indexed: 04/09/2024] Open
Abstract
In weeds, disturbance has been found to affect life history traits and mediate trophic interactions. In urban landscapes, mowing is an important disturbance, and we previously showed that continuous mowing leads to enhanced fitness and defense traits in Solanum elaeagnifolium, Silverleaf Nightshade (SLN). However, most studies have been focused on foliar defenses, ignoring floral defenses. In this study we examined whether continuous mowing affected floral defenses in SLN using mowed and unmowed populations in South Texas, their native range. We found flowers of mowed SLN plants larger but lighter than unmowed plants. Additionally, flowers on plants that were mowed frequently were both heavier and larger. Mowed plants had higher spine density and consequently unmowed flowers had higher herbivore damage. Additionally, early instar Manduca sexta fed on mowed flower-based artificial diets showed no difference in mass than the control and unmowed; however, later instars caterpillars on unmowed diets gained significantly more mass than the mowed treatment and control. Mowed plants had higher spine density which may shed light on why unmowed flowers experienced higher herbivore damage. We found caterpillars fed on high mowing frequency diets were heavier than those on low mowing frequency diets. Collectively, we show that mowing compromises floral traits and enhances plant defenses against herbivores and should be accounted for in management.
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Affiliation(s)
- Alejandro Vasquez
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Alexa Alaniz
- Department of Biology, The University of Texas Rio Grande Valley, Edinburg, TX, 78504, USA
| | - Robert Dearth
- Department of Biology, The University of Texas Rio Grande Valley, Edinburg, TX, 78504, USA
| | - Rupesh Kariyat
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, 72701, USA.
- Department of Biology, The University of Texas Rio Grande Valley, Edinburg, TX, 78504, USA.
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Ali J, Tonğa A, Islam T, Mir S, Mukarram M, Konôpková AS, Chen R. Defense strategies and associated phytohormonal regulation in Brassica plants in response to chewing and sap-sucking insects. FRONTIERS IN PLANT SCIENCE 2024; 15:1376917. [PMID: 38645389 PMCID: PMC11026728 DOI: 10.3389/fpls.2024.1376917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/19/2024] [Indexed: 04/23/2024]
Abstract
Plants have evolved distinct defense strategies in response to a diverse range of chewing and sucking insect herbivory. While chewing insect herbivores, exemplified by caterpillars and beetles, cause visible tissue damage and induce jasmonic acid (JA)-mediated defense responses, sucking insects, such as aphids and whiteflies, delicately tap into the phloem sap and elicit salicylic acid (SA)-mediated defense responses. This review aims to highlight the specificity of defense strategies in Brassica plants and associated underlying molecular mechanisms when challenged by herbivorous insects from different feeding guilds (i.e., chewing and sucking insects). To establish such an understanding in Brassica plants, the typical defense responses were categorized into physical, chemical, and metabolic adjustments. Further, the impact of contrasting feeding patterns on Brassica is discussed in context to unique biochemical and molecular modus operandi that governs the resistance against chewing and sucking insect pests. Grasping these interactions is crucial to developing innovative and targeted pest management approaches to ensure ecosystem sustainability and Brassica productivity.
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Affiliation(s)
- Jamin Ali
- College of Plant Protection, Jilin Agricultural University, Changchun, China
- School of Life Sciences, Keele University, Newcastle-Under-Lyme, United Kingdom
| | - Adil Tonğa
- Entomology Department, Diyarbakır Plant Protection Research Institute, Diyarbakir, Türkiye
| | - Tarikul Islam
- Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh
- Department of Entomology, Rutgers University, New Brunswick, NJ, United States
| | - Sajad Mir
- Entomology Section, Sher-E-Kashmir University of Agricultural Science and Technology, Kashmir, India
| | - Mohammad Mukarram
- Food and Plant Biology Group, Department of Plant Biology, Universidad de la República, Montevideo, Uruguay
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
| | - Alena Sliacka Konôpková
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
- Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
| | - Rizhao Chen
- College of Plant Protection, Jilin Agricultural University, Changchun, China
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Đurić M, Jevremović S, Trifunović-Momčilov M, Milošević S, Subotić A, Jerinić-Prodanović D. Physiological and oxidative stress response of carrot (Daucus carota L.) to jumping plant-louse Bactericera trigonica Hodkinson (Hemiptera: Psylloidea) infestation. BMC PLANT BIOLOGY 2024; 24:243. [PMID: 38575896 PMCID: PMC10993497 DOI: 10.1186/s12870-024-04946-4] [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: 04/25/2023] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Carrot is an important vegetable crop grown worldwide. The major economic problem in carrot cultivation is yellow disease caused by Bactericera trigonica, which induces biotic stress and has the greatest impact on crop productivity. Comprehensive studies on the mechanism of carrot defense response to biotic stress caused by B. trigonica infestation have yet to be conducted. METHODS The changes in photosynthetic pigments, proline, TPC, H2O2 and MDA content, DPPH radical scavenging ability, and antioxidant enzyme activity of SOD, CAT, and POX in carrot leaves in response to insect sex (female and male), rapid response (during the first six hours), and long-term response to B. trigonica infestation were evaluated. RESULTS The results of our study strongly suggest that B. trigonica infestation causes significant changes in primary and secondary metabolism and oxidative status of carrot leaves. Photosynthetic pigment content, TPC, and DPPH and CAT activities were significantly reduced in carrot leaves in response to insect infestation. On the other hand, proline, H2O2 content, and the activity of the antioxidant enzymes superoxide dismutase and peroxidase were increased in carrot leaves after B. trigonica infestation. The results indicate that B. trigonica attenuates and delays the oxidative stress responses of carrot, allowing long-term feeding without visible changes in the plant. Carrot responded to long-term B. trigonica infestation with an increase in SOD and POX activity, suggesting that these enzymes may play a key role in plant defense mechanisms. CONCLUSIONS This is the first comprehensive study strongly suggesting that B. trigonica infestation causes significant changes in primary and secondary metabolism and an attenuated ROS defense response in carrot leaves that enables long-term insect feeding. The information provides new insights into the mechanisms of carrot protection against B. trigonica infestation.
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Affiliation(s)
- Marija Đurić
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Slađana Jevremović
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia.
| | - Milana Trifunović-Momčilov
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Snežana Milošević
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Angelina Subotić
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Dušanka Jerinić-Prodanović
- Department of Entomology and Agricultural Zoology, Faculty of Agriculture, University of Belgrade, Nemanjina 6, Belgrade, 11080, Serbia
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Pertiwi D, Hartati R, Julianti E, Fidrianny I. Antibacterial and antioxidant activities in various parts of Artocarpus lacucha Buch. Ham. ethanolic extract. Biomed Rep 2024; 20:66. [PMID: 38476607 PMCID: PMC10928476 DOI: 10.3892/br.2024.1755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 10/09/2023] [Indexed: 03/14/2024] Open
Abstract
Artocarpus lacucha is an endemic plant to North Sumatera, Indonesia. This plant has pharmacological activities, including acting as an antioxidant and antibacterial. The aim of the present study was to analyze the antibacterial and antioxidant activities, and determine the flavonoid compounds from four parts of A. lachuca, namely leaves, barks, twigs and fruits. Antioxidant activity was investigated using the 2,2-diphenyl 1-picrylhydrazyl (DPPH) and cupric reducing antioxidant capacity (CUPRAC) methods. Antibacterial activity was analyzed using disk diffusion and microdilution methods. Several flavonoids, such as luteolin-7-O-glucoside, rutin, quercetin, kaempferol and apigenin, were determined using high performance liquid chromatography. Based on the antioxidant activity test results using the DPPH method, the bark ethanolic extract provided the highest antioxidant capacity, while the CUPRAC method indicated that the twig ethanolic extract had the highest antioxidant capacity. The antibacterial activity test results demonstrated that at a low concentration of 750 µg/disk the bark ethanolic extract obtained the highest inhibition zone and minimum inhibitory concentration level against six of nine pathogenic bacteria. Therefore, A. lachuca bark ethanolic extract could be potentially developed as antioxidant and antibacterial agents.
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Affiliation(s)
- Dewi Pertiwi
- Department of Pharmaceutical Biology, School of Pharmacy, Bandung Institute of Technology, Bandung, West Java 40132, Indonesia
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, North Sumatra 20155, Indonesia
| | - Rika Hartati
- Department of Pharmaceutical Biology, School of Pharmacy, Bandung Institute of Technology, Bandung, West Java 40132, Indonesia
| | - Elin Julianti
- Department of Pharmacochemistry, School of Pharmacy, Bandung Institute of Technology, Bandung, West Java 40132, Indonesia
| | - Irda Fidrianny
- Department of Pharmaceutical Biology, School of Pharmacy, Bandung Institute of Technology, Bandung, West Java 40132, Indonesia
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van Kleeff PJM, Mastop M, Sun P, Dangol S, van Doore E, Dekker HL, Kramer G, Lee S, Ryu CM, de Vos M, Schuurink RC. Discovery of Three Bemisia tabaci Effectors and Their Effect on Gene Expression in Planta. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2024; 37:380-395. [PMID: 38114195 DOI: 10.1094/mpmi-04-23-0044-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Bemisia tabaci (whitefly) is a polyphagous agroeconomic pest species complex. Two members of this species complex, Mediterranean (MED) and Middle-East-Asia Minor 1 (MEAM1), have a worldwide distribution and have been shown to manipulate plant defenses through effectors. In this study, we used three different strategies to identify three MEAM1 proteins that can act as effectors. Effector B1 was identified using a bioinformatics-driven effector-mining strategy, whereas effectors S1 and P1 were identified in the saliva of whiteflies collected from artificial diet and in phloem exudate of tomato on which nymphs were feeding, respectively. These three effectors were B. tabaci specific and able to increase whitefly fecundity when transiently expressed in tobacco plants (Nicotiana tabacum). Moreover, they reduced growth of Pseudomonas syringae pv. tabaci in Nicotiana benthamiana. All three effectors changed gene expression in planta, and B1 and S1 also changed phytohormone levels. Gene ontology and KEGG pathway enrichment analysis pinpointed plant-pathogen interaction and photosynthesis as the main enriched pathways for all three effectors. Our data thus show the discovery and validation of three new B. tabaci MEAM1 effectors that increase whitefly fecundity and modulate plant immunity. [Formula: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Paula J M van Kleeff
- Green Life Sciences Research Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Marieke Mastop
- Green Life Sciences Research Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Pulu Sun
- Green Life Sciences Research Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Sarmina Dangol
- Green Life Sciences Research Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Eva van Doore
- Green Life Sciences Research Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Henk L Dekker
- Laboratory for Mass Spectrometry of Biomolecules, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Gertjan Kramer
- Laboratory for Mass Spectrometry of Biomolecules, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Soohyun Lee
- Molecular Phytobacteriology Laboratory, Infectious Disease Research Center, KRIBB, Daejeon 34141, South Korea
| | - Choong-Min Ryu
- Molecular Phytobacteriology Laboratory, Infectious Disease Research Center, KRIBB, Daejeon 34141, South Korea
| | | | - Robert C Schuurink
- Green Life Sciences Research Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
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Ullah A, Klutsch JG, Erbilgin N. Complementary roles of two classes of defense chemicals in white spruce against spruce budworm. PLANTA 2024; 259:105. [PMID: 38551685 DOI: 10.1007/s00425-024-04383-5] [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: 09/04/2023] [Accepted: 03/08/2024] [Indexed: 04/02/2024]
Abstract
MAIN CONCLUSION Monoterpenes and phenolics play distinct roles in defending white spruce trees from insect defoliators. Monoterpenes contribute to the toxicity of the foliage, deterring herbivory, whereas phenolics impede budworm growth. This study demonstrates the complex interplay between monoterpenes and phenolics and their collective influence on the defense strategy of white spruce trees against a common insect defoliator. Long-lived coniferous trees display considerable variations in their defensive chemistry. The impact of these defense phenotype variations on insect herbivores of the same species remains to be thoroughly studied, mainly due to challenges in replicating the comprehensive defense profiles of trees under controlled conditions. This study methodically examined the defensive properties of foliar monoterpenes and phenolics across 80 distinct white spruce families. These families were subsequently grouped into two chemotypes based on their foliar monoterpene concentrations. To understand the separate and combined effects of these classes on tree defenses to the eastern spruce budworm, we conducted feeding experiments using actual defense profiles from representative families. Specifically, we assessed budworm response when exposed to substrates amended with phenolics alone or monoterpenes. Our findings indicate that the ratios and amounts of monoterpenes and phenolics present in the white spruce foliage influence the survival of spruce budworms. Phenotypes associated with complete larval mortality exhibited elevated ratios (ranging from 0.4 to 0.6) and concentrations (ranging from 1143 to 1796 ng mg-1) of monoterpenes. Conversely, families characterized by higher phenolic ratios (ranging from 0.62 to 0.77) and lower monoterpene concentrations (ranging from 419 to 985 ng mg-1) were less lethal to the spruce budworm. Both classes of defense compounds contribute significantly to the overall defensive capabilities of white spruce trees. Monoterpenes appear critical in determining the general toxicity of foliage, while phenolics play a role in slowing budworm development, thereby underscoring their collective importance in white spruce defenses.
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Affiliation(s)
- Aziz Ullah
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada.
| | - Jennifer G Klutsch
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada
- Natural Resources Canada, Canadian Forest Service, Edmonton, AB, T6H 3S5, Canada
| | - Nadir Erbilgin
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada
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Zulfiqar S, Ishfaq S, Raza Bukhari SA, Sajjad M, Akhtar M, Liu D, Rahman MU. New genetic resources for aphid resistance were identified from a newly developed wheat mutant library. Heliyon 2024; 10:e26529. [PMID: 38444497 PMCID: PMC10912258 DOI: 10.1016/j.heliyon.2024.e26529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 01/22/2024] [Accepted: 02/15/2024] [Indexed: 03/07/2024] Open
Abstract
Reports on development of resilient wheat mutants to aphid infestation-causing heavy losses to wheat production in many parts of the world, are scanty. The present study aimed to identify genetic diversity of wheat mutants in terms of varying degree of resistance to aphid infestation which can help protect wheat crop, improve yields and enhance food security. Resistance response to aphid infestation was studied on newly developed 33 wheat mutants, developed through irradiating seed of an elite wheat cultivar "Punjab-11" with gamma radiations, during three normal growing seasons at two sites. Data on various traits including aphid count per plant, biochemical traits, physiological traits and grain yield was recorded. Meteorological data was also collected to unravel the impact of environmental conditions on aphid infestation on wheat plants. Minimum average aphid infestation was found on Pb-M-2725, Pb-M-2550, and Pb-M-2719 as compared to the wild type. High yielding mutants Pb-M-1323, Pb-M-59, and Pb-M-1272 supported the moderate aphid infestation. The prevailing temperature up to 25 °C showed positive correlation (0.25) with aphid count. Among biochemical traits, POD (0.34), TSP (0.33), TFA (0.324) exhibited a high positive correlation with aphid count. In addition, CAT (0.31), TSS (0.294), and proline content (0.293) also showed a positive correlation with aphid count. However, all physiological traits depicted negative correlation with aphid count, while, a very weak correlation (0.12) was found between mean aphid count and grain yield. In PCA biplots, the biochemical variables clustered together with aphid count, while physiological variables grouped with grain yield. Biochemical parameters contributed most, towards first dimension of the PCA (48.6%) as compared to the physiological variables (13%). The FAMD revealed that mutant lines were major contributor towards total variation; Pb-M-1027, Pb-M-1323, Pb-M-59 were found to be the most diverse lines. The PCA revealed that biochemical parameters played a significant role in explaining variations in aphid resistance, emphasizing their importance in aphid defense mechanisms. The identified mutants can be utilized by the international wheat community for getting insight into the molecular circuits of resistant mechanism against aphids as well as for designing new KASP markers. This study also highlights the importance of considering both genetic and environmental factors in the development of resilient wheat varieties and pave the way for further investigations into the molecular mechanisms underpinning aphid resistance in wheat.
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Affiliation(s)
- Sana Zulfiqar
- Plant Genomics and Molecular Breeding Laboratory, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, 38000, Punjab, Pakistan
- Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, 38000, Punjab, Pakistan
| | - Shumila Ishfaq
- Plant Genomics and Molecular Breeding Laboratory, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, 38000, Punjab, Pakistan
| | | | - Muhammad Sajjad
- Department of Biosciences, COMSATS University, Islamabad, Islamabad, Pakistan
| | - Muhammad Akhtar
- Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan
| | - Dongcheng Liu
- State Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agriculture University, Baoding 071000, Hebei, China
| | - Mehboob-ur Rahman
- Plant Genomics and Molecular Breeding Laboratory, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, 38000, Punjab, Pakistan
- Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, 38000, Punjab, Pakistan
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Coca-Ruiz V, Aleu J, Collado IG. Comparing Fungal Sensitivity to Isothiocyanate Products on Different Botrytis spp. PLANTS (BASEL, SWITZERLAND) 2024; 13:756. [PMID: 38592765 PMCID: PMC10974099 DOI: 10.3390/plants13060756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 04/10/2024]
Abstract
Glucosinolates, the main secondary metabolites accumulated in cruciferous flora, have a major impact on fortifying plant immunity against diverse pathogens. Although Botrytis cinerea exhibits varying sensitivity to these compounds, current research has yet to fully understand the intricate mechanisms governing its response to glucosinolates. Different species of the genus Botrytis were exposed to glucosinolate-derived isothiocyanates, revealing that B. fabae, B. deweyae, and B. convolute, species with the mfsG transporter gene (Bcin06g00026) not detected with PCR, were more sensitive to isothiocyanates than Botrytis species containing that gene, such as B. cinerea, B. pseudocinerea, and B. byssoidea. This finding was further corroborated by the inability of species with the mfsG gene not detected with PCR to infect plants with a high concentration of glucosinolate-derived isothiocyanates. These results challenge established correlations, revealing varying aggressiveness on different plant substrates. An expression analysis highlighted the gene's induction in the presence of isothiocyanate, and a bioinformatic investigation identified homologous genes in other Botrytis species. Our study underscored the importance of advanced biotechnology to help understand these proteins and thus offer innovative solutions for agriculture.
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Affiliation(s)
- Víctor Coca-Ruiz
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Cádiz, Spain;
- Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, 11510 Cádiz, Spain
| | - Josefina Aleu
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Cádiz, Spain;
- Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, 11510 Cádiz, Spain
| | - Isidro G. Collado
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Cádiz, Spain;
- Instituto de Investigación en Biomoléculas (INBIO), Universidad de Cádiz, 11510 Cádiz, Spain
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Zhang M, Yang B, Wang Y, Yu F. CrJAT1 Regulates Endogenous JA Signaling for Modulating Monoterpenoid Indole Alkaloid Biosynthesis in Catharanthus roseus. Genes (Basel) 2024; 15:324. [PMID: 38540383 PMCID: PMC10970522 DOI: 10.3390/genes15030324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 06/14/2024] Open
Abstract
Many monoterpenoid indole alkaloids (MIAs) produced in Catharanthus roseus have demonstrated biological activities and clinical potential. However, their complex biosynthesis pathway in plants leads to low accumulation, limiting therapeutic applications. Efforts to elucidate the MIA biosynthetic regulatory mechanism have focused on improving accumulation levels. Previous studies revealed that jasmonic acid (JA), an important plant hormone, effectively promotes MIA accumulation by inducing the expression of MIA biosynthesis and transport genes. Nevertheless, excessive JA signaling can strongly inhibit plant growth, decreasing MIA productivity in C. roseus. Therefore, identifying key components balancing growth and MIA production in the JA signaling pathway is imperative for effective pharmaceutical production. Here, we identify a homolog of the jasmonate transporter 1, CrJAT1, through co-expression and phylogenetic analyses. Further investigation demonstrated that CrJAT1 can activate JA signaling to promote MIA accumulation without compromising growth. The potential role of CrJAT1 in redistributing intra/inter-cellular JA and JA-Ile may calibrate signaling to avoid inhibition, representing a promising molecular breeding target in C. roseus to optimize the balance between growth and specialized metabolism for improved MIA production.
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Affiliation(s)
- Mengxia Zhang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
| | - Bingrun Yang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
| | - Yanyan Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
| | - Fang Yu
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; (M.Z.); (B.Y.); (Y.W.)
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
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Paré PSL, Hien DFDS, Youba M, Yerbanga RS, Cohuet A, Gouagna L, Diabaté A, Ignell R, Dabiré RK, Gnankiné O, Lefèvre T. The paradox of plant preference: The malaria vectors Anopheles gambiae and Anopheles coluzzii select suboptimal food sources for their survival and reproduction. Ecol Evol 2024; 14:e11187. [PMID: 38533352 PMCID: PMC10963300 DOI: 10.1002/ece3.11187] [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: 11/01/2023] [Revised: 03/02/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024] Open
Abstract
Anopheles gambiae and Anopheles coluzzii mosquitoes, two major malaria vectors in sub-Saharan Africa, exhibit selectivity among plant species as potential food sources. However, it remains unclear if their preference aligns with optimal nutrient intake and survival. Following an extensive screening of the effects of 31 plant species on An. coluzzii in Burkina Faso, we selected three species for their contrasting effects on mosquito survival, namely Ixora coccinea, Caesalpinia pulcherrima, and Combretum indicum. We assessed the sugar content of these plants and their impact on mosquito fructose positivity, survival, and insemination rate, using Anopheles coluzzii and Anopheles gambiae, with glucose 5% and water as controls. Plants displayed varying sugar content and differentially affected the survival, sugar intake, and insemination rate of mosquitoes. All three plants were more attractive to mosquitoes than controls, with An. gambiae being more responsive than An. coluzzii. Notably, C. indicum was the most attractive but had the lowest sugar content and offered the lowest survival, insemination rate, and fructose positivity. Our findings unveil a performance-preference mismatch in An. coluzzii and An. gambiae regarding plant food sources. Several possible reasons for this negative correlation between performance and preference are discussed.
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Affiliation(s)
- Prisca S. L. Paré
- Institut de Recherche en Sciences de la Santé (IRSS)Bobo‐DioulassoBurkina Faso
- MIVEGEC, Université de Montpellier, IRD, CNRSMontpellierFrance
- Laboratoire d'Entomologie Fondamentale et Appliquée (LEFA), Unité de Formation et de Recherche—Sciences de la Vie et de la Terre (UFR‐SVT)Université Joseph KI‐ZERBO (UJKZ)OuagadougouBurkina Faso
| | - Domonbabele F. D. S. Hien
- Institut de Recherche en Sciences de la Santé (IRSS)Bobo‐DioulassoBurkina Faso
- MIVEGEC, Université de Montpellier, IRD, CNRSMontpellierFrance
- Laboratoire Mixte International Sur les Vecteurs (LAMIVECT)Bobo‐DioulassoBurkina Faso
| | - Mariam Youba
- Institut de Recherche en Sciences de la Santé (IRSS)Bobo‐DioulassoBurkina Faso
- MIVEGEC, Université de Montpellier, IRD, CNRSMontpellierFrance
- Laboratoire d'Entomologie Fondamentale et Appliquée (LEFA), Unité de Formation et de Recherche—Sciences de la Vie et de la Terre (UFR‐SVT)Université Joseph KI‐ZERBO (UJKZ)OuagadougouBurkina Faso
| | - Rakiswendé S. Yerbanga
- Institut de Recherche en Sciences de la Santé (IRSS)Bobo‐DioulassoBurkina Faso
- Laboratoire Mixte International Sur les Vecteurs (LAMIVECT)Bobo‐DioulassoBurkina Faso
- Institut Des Sciences et Techniques (INSTech—BOBO)Bobo‐DioulassoBurkina Faso
| | - Anna Cohuet
- MIVEGEC, Université de Montpellier, IRD, CNRSMontpellierFrance
- Laboratoire Mixte International Sur les Vecteurs (LAMIVECT)Bobo‐DioulassoBurkina Faso
| | | | - Abdoulaye Diabaté
- Institut de Recherche en Sciences de la Santé (IRSS)Bobo‐DioulassoBurkina Faso
- Laboratoire Mixte International Sur les Vecteurs (LAMIVECT)Bobo‐DioulassoBurkina Faso
| | - Rickard Ignell
- Unit of Chemical Ecology, Department of Plant Protection Biology, Disease Vector GroupSwedish University of Agricultural SciencesUppsalaSweden
| | - Roch K. Dabiré
- Institut de Recherche en Sciences de la Santé (IRSS)Bobo‐DioulassoBurkina Faso
- Laboratoire Mixte International Sur les Vecteurs (LAMIVECT)Bobo‐DioulassoBurkina Faso
| | - Olivier Gnankiné
- Laboratoire d'Entomologie Fondamentale et Appliquée (LEFA), Unité de Formation et de Recherche—Sciences de la Vie et de la Terre (UFR‐SVT)Université Joseph KI‐ZERBO (UJKZ)OuagadougouBurkina Faso
| | - Thierry Lefèvre
- Institut de Recherche en Sciences de la Santé (IRSS)Bobo‐DioulassoBurkina Faso
- MIVEGEC, Université de Montpellier, IRD, CNRSMontpellierFrance
- Laboratoire Mixte International Sur les Vecteurs (LAMIVECT)Bobo‐DioulassoBurkina Faso
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van Griethuysen PA, Redeker KR, MacFarlane SA, Neilson R, Hartley SE. Virus-induced changes in root volatiles attract soil nematode vectors to infected plants. THE NEW PHYTOLOGIST 2024; 241:2275-2286. [PMID: 38327027 DOI: 10.1111/nph.19518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/28/2023] [Indexed: 02/09/2024]
Abstract
Plant-derived volatiles mediate interactions among plants, pathogenic viruses, and viral vectors. These volatile-dependent mechanisms have not been previously demonstrated belowground, despite their likely significant role in soil ecology and agricultural pest impacts. We investigated how the plant virus, tobacco rattle virus (TRV), attracts soil nematode vectors to infected plants. We infected Nicotiana benthamiana with TRV and compared root growth relative to that of uninfected plants. We tested whether TRV-infected N. benthamiana was more attractive to nematodes 7 d post infection and identified a compound critical to attraction. We also infected N. benthamiana with mutated TRV strains to identify virus genes involved in vector nematode attraction. Virus titre and associated impacts on root morphology were greatest 7 d post infection. Tobacco rattle virus infection enhanced 2-ethyl-1-hexanol production. Nematode chemotaxis and 2-ethyl-1-hexanol production correlated strongly with viral load. Uninfected plants were more attractive to nematodes after the addition of 2-ethyl-1-hexanol than were untreated plants. Mutation of TRV RNA2-encoded genes reduced the production of 2-ethyl-1-hexanol and nematode attraction. For the first time, this demonstrates that virus-driven alterations in root volatile emissions lead to increased chemotaxis of the virus's nematode vector, a finding with implications for sustainable management of both nematodes and viral pathogens in agricultural systems.
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Affiliation(s)
| | - Kelly R Redeker
- Department of Biology, University of York, Heslington, York, YO1 5DD, UK
| | - Stuart A MacFarlane
- Cell and Molecular Sciences Department, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Roy Neilson
- Ecological Sciences Department, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Sue E Hartley
- School of Biosciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
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Penn HJ, Read QD. Stem borer herbivory dependent on interactions of sugarcane variety, associated traits, and presence of prior borer damage. PEST MANAGEMENT SCIENCE 2024; 80:1126-1136. [PMID: 37855173 DOI: 10.1002/ps.7843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/21/2023] [Accepted: 10/16/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Herbivory risk is mediated by plant traits related to nutrition and defense that can vary within a species by genotype and age. Prior herbivore damage accrued by a plant can also interact with these traits to alter future herbivory potential by changing plant quantity or quality. Sugarcane (Saccharum spp.) is a perennial crop where aboveground biomass is harvested annually and with varieties differing in nutrition and defenses, making it conducive to evaluating varietal resistance mechanisms. Using data from 16 sugarcane varieties and 28 years, we assessed damage from the primary pest in Louisiana, the sugarcane borer (Diatraea saccharalis, SCB), relative to variety, crop year (ratoon), plant traits, and incidence of prior herbivory. RESULTS SCB damage differed among varieties but not crop year, mostly following previously established classifications of SCB resistance, and correlated with select nutritional and defense traits. Within a crop year, the probability of SCB damage increased with prior conspecific damage on the same stalk. However, the strength of this prior damage effect did not match known resistance patterns but still differed with variety. CONCLUSIONS Interactions of plant variety, traits, and prior pest damage but not age impacted sugarcane borer risk. Borer damage was associated with nutritional traits of fiber and sugar content, but not consistently with defensive traits like high stalk wax or hair density, indicating there may be additional resistance traits or indirect impacts of these traits on predators. Published 2023. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- Hannah J Penn
- United States Department of Agriculture, Agricultural Research Service, Sugarcane Research Unit, Houma, Louisiana, USA
| | - Quentin D Read
- United States Department of Agriculture, Agricultural Research Service, Raleigh, North Carolina, USA
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47
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Pan VS, Wetzel WC. Neutrality in plant-herbivore interactions. Proc Biol Sci 2024; 291:20232687. [PMID: 38378151 PMCID: PMC10878797 DOI: 10.1098/rspb.2023.2687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/23/2024] [Indexed: 02/22/2024] Open
Abstract
Understanding the distribution of herbivore damage among leaves and individual plants is a central goal of plant-herbivore biology. Commonly observed unequal patterns of herbivore damage have conventionally been attributed to the heterogeneity in plant quality or herbivore behaviour or distribution. Meanwhile, the potential role of stochastic processes in structuring plant-herbivore interactions has been overlooked. Here, we show that based on simple first principle expectations from metabolic theory, random sampling of different sizes of herbivores from a regional pool is sufficient to explain patterns of variation in herbivore damage. This is despite making the neutral assumption that herbivory is caused by randomly feeding herbivores on identical and passive plants. We then compared its predictions against 765 datasets of herbivory on 496 species across 116° of latitude from the Herbivory Variability Network. Using only one free parameter, the estimated attack rate, our neutral model approximates the observed frequency distribution of herbivore damage among plants and especially among leaves very well. Our results suggest that neutral stochastic processes play a large and underappreciated role in natural variation in herbivory and may explain the low predictability of herbivory patterns. We argue that such prominence warrants its consideration as a powerful force in plant-herbivore interactions.
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Affiliation(s)
- Vincent S. Pan
- Department of Integrative Biology, Michigan State University, Easting Lansing, MI 48824, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, Easting Lansing, MI 48824, USA
- W. K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI 49060, USA
| | - William C. Wetzel
- Department of Integrative Biology, Michigan State University, Easting Lansing, MI 48824, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, Easting Lansing, MI 48824, USA
- W. K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI 49060, USA
- Land Resources and Environmental Sciences, Montana State University, Bozeman, MT 59717, USA
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Barthwal R, Mahar R. Exploring the Significance, Extraction, and Characterization of Plant-Derived Secondary Metabolites in Complex Mixtures. Metabolites 2024; 14:119. [PMID: 38393011 PMCID: PMC10890687 DOI: 10.3390/metabo14020119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 02/04/2024] [Indexed: 02/25/2024] Open
Abstract
Secondary metabolites are essential components for the survival of plants. Secondary metabolites in complex mixtures from plants have been adopted and documented by different traditional medicinal systems worldwide for the treatment of various human diseases. The extraction strategies are the key components for therapeutic development from natural sources. Polarity-dependent solvent-selective extraction, acidic and basic solution-based extraction, and microwave- and ultrasound-assisted extraction are some of the most important strategies for the extraction of natural products from plants. The method needs to be optimized to isolate a specific class of compounds. Therefore, to establish the mechanism of action, the characterization of the secondary metabolites, in a mixture or in their pure forms, is equally important. LC-MS, GC-MS, and extensive NMR spectroscopic strategies are established techniques for the profiling of metabolites in crude extracts. Various protocols for the extraction and characterization of a wide range of classes of compounds have been developed by various research groups and are described in this review. Additionally, the possible means of characterizing the compounds in the mixture and their uniqueness are also discussed. Hyphenated techniques are crucial for profiling because of their ability to analyze a vast range of compounds. In contrast, inherent chemical shifts make NMR an indispensable tool for structure elucidation in complex mixtures.
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Affiliation(s)
- Ruchi Barthwal
- Department of Chemistry, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Garhwal 246174, Uttarakhand, India
| | - Rohit Mahar
- Department of Chemistry, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Garhwal 246174, Uttarakhand, India
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De-la-Cruz IM, Oyama K, Núñez-Farfán J. The chromosome-scale genome and the genetic resistance machinery against insect herbivores of the Mexican toloache, Datura stramonium. G3 (BETHESDA, MD.) 2024; 14:jkad288. [PMID: 38113048 PMCID: PMC10849327 DOI: 10.1093/g3journal/jkad288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 09/21/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023]
Abstract
Plant resistance refers to the heritable ability of plants to reduce damage caused by natural enemies, such as herbivores and pathogens, either through constitutive or induced traits like chemical compounds or trichomes. However, the genetic architecture-the number and genome location of genes that affect plant defense and the magnitude of their effects-of plant resistance to arthropod herbivores in natural populations remains poorly understood. In this study, we aimed to unveil the genetic architecture of plant resistance to insect herbivores in the annual herb Datura stramonium (Solanaceae) through quantitative trait loci mapping. We achieved this by assembling the species' genome and constructing a linkage map using an F2 progeny transplanted into natural habitats. Furthermore, we conducted differential gene expression analysis between undamaged and damaged plants caused by the primary folivore, Lema daturaphila larvae. Our genome assembly resulted in 6,109 scaffolds distributed across 12 haploid chromosomes. A single quantitative trait loci region on chromosome 3 was associated with plant resistance, spanning 0 to 5.17 cM. The explained variance by the quantitative trait loci was 8.44%. Our findings imply that the resistance mechanisms of D. stramonium are shaped by the complex interplay of multiple genes with minor effects. Protein-protein interaction networks involving genes within the quantitative trait loci region and overexpressed genes uncovered the key role of receptor-like cytoplasmic kinases in signaling and regulating tropane alkaloids and terpenoids, which serve as powerful chemical defenses against D. stramonium herbivores. The data generated in our study constitute important resources for delving into the evolution and ecology of secondary compounds mediating plant-insect interactions.
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Affiliation(s)
- Ivan M De-la-Cruz
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Lomma, Alnarp 230 53, Sweden
| | - Ken Oyama
- Escuela Nacional de Estudios Superiores (ENES), Universidad Nacional Autónoma de México (UNAM), Campus Morelia, Morelia, Michoacán 8701, Mexico
| | - Juan Núñez-Farfán
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
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50
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Wang S, Xu G, Zou J. Soluble non-starch polysaccharides in fish feed: implications for fish metabolism. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:1-22. [PMID: 36219350 DOI: 10.1007/s10695-022-01131-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Because of their unique glycosidic bond structure, non-starch polysaccharides (NSP) are difficult for the stomach to break down. NSP can be classified as insoluble NSP (iNSP, fiber, lignin, etc.) and soluble NSP (sNSP, oligosaccharides, β-glucan, pectin, fermentable fiber, inulin, plant-derived polysaccharides, etc.). sNSP is viscous, fermentable, and soluble. Gut microbiota may catabolize sNSP, which can then control fish lipid, glucose, and protein metabolism and impact development rates. This review examined the most recent studies on the impacts of various forms of sNSP on the nutritional metabolism of various fish in order to comprehend the effects of sNSP on fish. According to certain investigations, sNSP can enhance fish development, boost the activity of digestive enzymes, reduce blood sugar and cholesterol, enhance the colonization of good gut flora, and modify fish nutrition metabolism. In-depth research on the mechanism of action is also lacking in most studies on the effects of sNSP on fish metabolism. It is necessary to have a deeper comprehension of the underlying processes by which sNSP induce host metabolism. This is crucial to address the main issue of the sensible use of carbohydrates in fish feed.
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Affiliation(s)
- Shaodan Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region On Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Guohuan Xu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.
| | - Jixing Zou
- Joint Laboratory of Guangdong Province and Hong Kong Region On Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.
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