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Lun X, Jin M, Chen Z, Cao Y, Zhang X, Xu X, Li Y, Wang H, Zhang Z. Flowering Ocimum gratissimum intercropped in tea plantations attracts and reduces Apolygus lucorum populations. PEST MANAGEMENT SCIENCE 2024; 80:4841-4852. [PMID: 38587057 DOI: 10.1002/ps.8120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/03/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Apolygus lucorum is one of the most important piercing-sucking insect pests of the tea plant In this study, we assessed the attractiveness of basil plants to A. lucorum and the effectiveness of Ocimum gratissimum L. in the control of A. lucorum. The control efficiency of main volatile chemicals emitted from O. gratissimum flowers was also evaluated. RESULTS Among seven basil varieties, O. gratissimum was more attractive to A. lucorum adults and was selected as a trap plant to assess its attractiveness to A. lucorum and effects on natural enemies in tea plantations. The population density of A. lucorum on trap strips of O. gratissimum in tea plantations was significantly higher than that on tea at 10-20 m away from the trap strips. Intercropping O. gratissimum with tea plants, at high-density significantly reduced A. lucorum population levels. Eucalyptol, limonene, β-ocimene, and linalool were the four dominant components in the O. gratissimum flower volatiles, and their emissions showed a gradual upward trend over the sampling period. Olfactometer assays indicated that eucalyptol and dodecane showed attraction to A. lucorum. High numbers of A. lucorum were recorded on limonene, eucalyptol, and myrcene-baited yellow sticky traps in field trials in which 11 dominant volatiles emitted by O. gratissimum flowers were evaluated. CONCLUSION Our research indicated that the aromatic plant O. gratissimum and its volatiles could attract A. lucorum and planting O. gratissimum has the potential as a pest biocontrol method to manipulate A. lucorum populations in tea plantations. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Xiaoyue Lun
- Shandong Agricultural University, Tai'an, China
| | - Meina Jin
- Shandong Agricultural University, Tai'an, China
| | - Zejun Chen
- Shandong Agricultural University, Tai'an, China
| | - Yan Cao
- Shandong Agricultural University, Tai'an, China
| | | | - Xiuxiu Xu
- Tea Research Institute of Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yusheng Li
- Shandong Agricultural Technology Extension Center, Jinan, China
| | - Hanyue Wang
- Shandong Agricultural Technology Extension Center, Jinan, China
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Andrade FM, Sales L, Favaris AP, Bento JMS, Mithöfer A, Peñaflor MFGV. Identity Matters: Multiple Herbivory Induces Less Attractive or Repellent Coffee Plant Volatile Emission to Different Natural Enemies. J Chem Ecol 2023; 49:696-709. [PMID: 37875650 DOI: 10.1007/s10886-023-01454-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: 07/27/2023] [Revised: 08/30/2023] [Accepted: 09/13/2023] [Indexed: 10/26/2023]
Abstract
Co-infestations by herbivores, a common situation found in natural settings, can distinctly affect induced plant defenses compared to single infestations. Related tritrophic interactions might be affected through the emission of changed blends of herbivore-induced plant volatiles (HIPVs). In a previous study, we observed that the infestation by red spider mite (Oligonychus ilicis) on coffee plants facilitated the infestation by white mealybug (Planococcus minor), whereas the reverse sequence of infestation did not occur. Here, we examined the involvement of the jasmonate and salicylate pathways in the plant-mediated asymmetrical facilitation between red spider mites and white mealybugs as well as the effect of multiple herbivory on attractiveness to the predatory mite Euseius concordis and the ladybug Cryptolaemus montrouzieri. Both mite and mealybug herbivory led to the accumulation of JA-Ile, JA, and cis-OPDA in plants, although the catabolic reactions of JA-Ile were specifically regulated by each herbivore. Infestation by mites or mealybugs induced the release of novel volatiles by coffee plants, which selectively attracted their respective predators. Even though the co-infestation by mites and mealybugs resulted in a stronger accumulation of JA-Ile, JA and SA than the single infestation treatments, the volatile emission was similar to that of mite-infested or mealybug-infested plants. However, multiple infestation had a negative impact on the attractiveness of HIPVs to the predators, making them less attractive to the predatory mite and a repellent to the ladybug. We discuss the potential underlying mechanisms of the susceptibility induced by mites, and the effect of multiple infestation on each predator.
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Affiliation(s)
| | - Lara Sales
- Department of Entomology, Lavras Federal University, Lavras, Brazil
| | - Arodí P Favaris
- 'Luiz de Queiroz' College of Agriculture, Department of Entomology and Acarology, University of São Paulo, Piracicaba, Brazil
| | - José Maurício Simões Bento
- 'Luiz de Queiroz' College of Agriculture, Department of Entomology and Acarology, University of São Paulo, Piracicaba, Brazil
| | - Axel Mithöfer
- Research Group Plant Defense Physiology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Maria Fernanda G V Peñaflor
- Department of Entomology, Lavras Federal University, Lavras, Brazil.
- Laboratory of Chemical Ecology of Insect-Plant Interaction, Department of Entomology, Lavras Federal University, Trevo Rotatório Professor Edmir Sá Santos, s/n, PO Box 3037, Lavras, 37203-202, Brazil.
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3
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Radonjić A, Jovičić I, Lalićević I, Petrović-Obradović O. Factors affecting host plant selection in alfalfa aphids. BULLETIN OF ENTOMOLOGICAL RESEARCH 2023; 113:439-448. [PMID: 36961106 DOI: 10.1017/s0007485323000093] [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: 06/18/2023]
Abstract
Alfalfa (Medicago sativa L.) hosts several species of aphid, Acyrthosiphon pisum (Harris), Aphis craccivora Koch and Therioaphis trifolii (Monell). The preference of the aphids of alfalfa plants for dense assemblies or individual plants, as well as for healthy or infested plants, was investigated in the field as in the laboratory. Years of field research have revealed the specific preferences of all three species of aphid. A. pisum and T. trifolii are most commonly found in alfalfa crops, while A. craccivora is mostly found on alfalfa weeds. Also, a single species of aphid alone is usually present on a plant. In order to determine the reason for this clear preference and to establish whether at the very beginning, i.e. at the stage of choosing a host, aphid species distance themselves from each other, we tested the effect of the volatiles of healthy and infested plants on their attractiveness to aphids. A. craccivora is repelled by the volatiles of dense crops and plants previously infested with one of the other two species. A. pisum and T. trifolii choose a dense assembly of plants, repelled by the volatiles of plants previously infested with A. craccivora. A. pisum displays the weakest competitive traits, and A. craccivora the strongest. This research showed that competition between aphid species does not occur only when they find themselves on the same plant at the same time, fighting for resources, but also in the choice of plant, in order to avoid later competition.
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Affiliation(s)
- Andja Radonjić
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia
| | - Ivana Jovičić
- Institute of Pesticides and Environmental Protection, Banatska 31b, 11080 Belgrade, Serbia
| | - Ivana Lalićević
- Tamiš Research and Devalopment Institute, Ltd. Novoseljanski put 33 Street, 26000 Pančevo, Serbia
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Ben Abdallah S, Riahi C, Vacas S, Navarro-Llopis V, Urbaneja A, Pérez-Hedo M. The Dual Benefit of Plant Essential Oils against Tuta absoluta. PLANTS (BASEL, SWITZERLAND) 2023; 12:985. [PMID: 36903846 PMCID: PMC10005231 DOI: 10.3390/plants12050985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Plant essential oils (PEOs) are being studied as a potential alternative to synthetic pesticides in agriculture. PEOs have the potential to control pests both directly, by being toxic or repellent to pests, and indirectly, by activating plant's defense mechanisms. In this study, the effectiveness of five PEOs (Achillea millefolium, Allium sativum, Rosmarinus officinallis, Tagetes minuta, and Thymus zygis) on controlling Tuta absoluta and their impact on the predator Nesidiocoris tenuis was examined. The study revelead that PEOs from A. millefolium and A. sativum-sprayed plants significantly reduced the number of T. absoluta-infested leaflets and did not affect the establishment and reproduction of N. tenuis. Additionally, the spraying of A. millefolium and A. sativum increased the expression of defense genes in the plants, triggering the release of herbivory-induced plant volatiles (HIPVs), such as C6 green leaf volatiles, monoterpenes, and aldehydes, which can be messengers in tritrophic interactions. The results suggest that PEOs from A. millefolium and A. sativum can provide a dual benefit for controlling arthropod pests, as they can directly exhibit toxicity against these pests while also activating plant defense mechanisms. Overall, this study provides new insights into using PEOs as a sustainable solution for controlling pests and diseases in agriculture, by reducing synthetic pesticides and promoting the use of natural predators.
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Affiliation(s)
- Saoussen Ben Abdallah
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, CV-315, Km 10.7, 46113 Moncada, Valencia, Spain
- Horticultural Science Department, Southwest Florida Research and Education Center, University of Florida/IFAS, Immokalee, FL 34142, USA
| | - Chaymaa Riahi
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, CV-315, Km 10.7, 46113 Moncada, Valencia, Spain
| | - Sandra Vacas
- Centro de Ecología Química Agrícola, Instituto Agroforestal del Mediterráneo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Valencia, Spain
| | - Vicente Navarro-Llopis
- Centro de Ecología Química Agrícola, Instituto Agroforestal del Mediterráneo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Valencia, Spain
| | - Alberto Urbaneja
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, CV-315, Km 10.7, 46113 Moncada, Valencia, Spain
| | - Meritxell Pérez-Hedo
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, CV-315, Km 10.7, 46113 Moncada, Valencia, Spain
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Ling S, Rizvi SAH, Xiong T, Liu J, Gu Y, Wang S, Zeng X. Volatile Signals From Guava Plants Prime Defense Signaling and Increase Jasmonate-Dependent Herbivore Resistance in Neighboring Citrus Plants. FRONTIERS IN PLANT SCIENCE 2022; 13:833562. [PMID: 35371180 PMCID: PMC8965645 DOI: 10.3389/fpls.2022.833562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 02/11/2022] [Indexed: 05/15/2023]
Abstract
Intercropping can reduce agricultural pest incidence and represents an important sustainable alternative to conventional pest control methods. Citrus intercropped with guava (Psidium guajava L.) has a lower incidence of Asian citrus psyllid (ACP, Diaphorina citri Kuwayama) and huanglongbing disease (HLB), but the mechanisms are still unknown. In this study, we tested whether volatile organic compounds (VOCs) emitted by guava plants play a role in plant-plant communications and trigger defense responses in sweet orange (Citrus sinensis L. Osbeck) in the laboratory. The results showed that the behavioral preference and developmental performance of ACP on citrus plants that were exposed to guava VOCs were suppressed. The expression of defense-related pathways involved in early signaling, jasmonate (JA) biosynthesis, protease inhibitor (PI), terpenoid, phenylpropanoid, and flavonoid biosynthesis was induced in guava VOC-exposed citrus plants. Headspace analysis revealed that guava plants constitutively emit high levels of (E)-β-caryophyllene and (E)-4,8-dimethyl-1,3,7-nonatriene (DMNT), which can induce the accumulation of JA and promote stronger defense responses of citrus to ACP feeding. In addition, exposure to guava VOCs also increased the indirect defense of citrus by attracting the parasitic wasp Tamarixia radiata. Together, our findings indicate that citrus plants can eavesdrop on the VOC cues emitted by neighboring intact guava plants to boost their JA-dependent anti-herbivore activities. The knowledge gained from this study will provide mechanisms underlying citrus-guava intercropping for the ecological management of insect pests.
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Affiliation(s)
- Siquan Ling
- Guangdong Engineering Research Center for Insect Behavior Regulation, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Syed Arif Hussain Rizvi
- Guangdong Engineering Research Center for Insect Behavior Regulation, College of Plant Protection, South China Agricultural University, Guangzhou, China
- Insect Pest Management Program, National Agricultural Research Centre, Islamabad, Pakistan
| | - Ting Xiong
- Guangdong Engineering Research Center for Insect Behavior Regulation, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Jiali Liu
- Guangdong Engineering Research Center for Insect Behavior Regulation, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Yanping Gu
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Siwei Wang
- Guangdong Engineering Research Center for Insect Behavior Regulation, College of Plant Protection, South China Agricultural University, Guangzhou, China
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xinnian Zeng
- Guangdong Engineering Research Center for Insect Behavior Regulation, College of Plant Protection, South China Agricultural University, Guangzhou, China
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Ninkovic V, Glinwood R, Ünlü AG, Ganji S, Unelius CR. Effects of Methyl Salicylate on Host Plant Acceptance and Feeding by the Aphid Rhopalosiphum padi. FRONTIERS IN PLANT SCIENCE 2021; 12:710268. [PMID: 34484270 PMCID: PMC8415113 DOI: 10.3389/fpls.2021.710268] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 07/14/2021] [Indexed: 05/27/2023]
Abstract
Methyl salicylate (MeSA) is a volatile shown to act as an inducer of plant defense against pathogens and certain herbivores, particularly aphids. It has been shown to have potential for aphid pest management, but knowledge on its mode of action is lacking, particularly induced plant-mediated effects. This study investigated the effects of exposing plants to MeSA on the host searching, host acceptance and feeding behavior of the bird cherry-oat aphid Rhopalosiphum padi. Barley plants were exposed to volatile MeSA for 24 h, after which biological effects were tested immediately after the exposure (Day 0), and then 1, 3 and 5 days after the end of the exposure. Aphid settling on MeSA-exposed plants was significantly reduced on days 0, 1 and 3, but not on day 5. In olfactometer tests, aphids preferred the odor of unexposed plants on days 1 and 3, but not on day 0 or 5. Analysis of volatiles from exposed and unexposed plants showed higher levels of MeSA from exposed plants, most likely absorbed and re-released from plant surfaces, but also specific changes in other plant volatiles on days 0, 1 and 3. High doses of MeSA did not affect aphid orientation in an olfactometer, but lower doses were repellent. Analysis of aphid feeding by Electronic penetration graph (EPG) showed that MeSA exposure resulted in resistance factors in barley plants, including surface factors and induced systemic factors in other tissues including the phloem. The results support the potential of MeSA as a potential tool for management of aphid pests.
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Affiliation(s)
- Velemir Ninkovic
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Robert Glinwood
- Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ayse Gül Ünlü
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Suresh Ganji
- Department of Chemistry and Biomedical Sciences, Linnaeus University, Kalmar, Sweden
| | - C. Rikard Unelius
- Department of Chemistry and Biomedical Sciences, Linnaeus University, Kalmar, Sweden
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Sharifi R, Ryu C. Social networking in crop plants: Wired and wireless cross-plant communications. PLANT, CELL & ENVIRONMENT 2021; 44:1095-1110. [PMID: 33274469 PMCID: PMC8049059 DOI: 10.1111/pce.13966] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 11/18/2020] [Accepted: 11/22/2020] [Indexed: 05/03/2023]
Abstract
The plant-associated microbial community (microbiome) has an important role in plant-plant communications. Plants decipher their complex habitat situations by sensing the environmental stimuli and molecular patterns and associated with microbes, herbivores and dangers. Perception of these cues generates inter/intracellular signals that induce modifications of plant metabolism and physiology. Signals can also be transferred between plants via different mechanisms, which we classify as wired- and wireless communications. Wired communications involve direct signal transfers between plants mediated by mycorrhizal hyphae and parasitic plant stems. Wireless communications involve plant volatile emissions and root exudates elicited by microbes/insects, which enable inter-plant signalling without physical contact. These producer-plant signals induce microbiome adaptation in receiver plants via facilitative or competitive mechanisms. Receiver plants eavesdrop to anticipate responses to improve fitness against stresses. An emerging body of information in plant-plant communication can be leveraged to improve integrated crop management under field conditions.
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Affiliation(s)
- Rouhallah Sharifi
- Department of Plant ProtectionCollege of Agriculture and Natural Resources, Razi UniversityKermanshahIran
| | - Choong‐Min Ryu
- Molecular Phytobacteriology LaboratoryInfectious Disease Research Center, KRIBBDaejeonSouth Korea
- Biosystem and Bioengineering ProgramUniversity of Science and Technology (UST)DaejeonSouth Korea
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Ninkovic V, Markovic D, Rensing M. Plant volatiles as cues and signals in plant communication. PLANT, CELL & ENVIRONMENT 2021; 44:1030-1043. [PMID: 33047347 PMCID: PMC8048923 DOI: 10.1111/pce.13910] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/05/2020] [Accepted: 10/05/2020] [Indexed: 05/05/2023]
Abstract
Volatile organic compounds are important mediators of mutualistic interactions between plants and their physical and biological surroundings. Volatiles rapidly indicate competition or potential threat before these can take place, and they regulate and coordinate adaptation responses in neighbouring plants, fine-tuning them to match the exact stress encountered. Ecological specificity and context-dependency of plant-plant communication mediated by volatiles represent important factors that determine plant performance in specific environments. In this review, we synthesise the recent progress made in understanding the role of plant volatiles as mediators of plant interactions at the individual and community levels, highlighting the complexity of the plant receiver response to diverse volatile cues and signals and addressing how specific responses shape plant growth and survival. Finally, we outline the knowledge gaps and provide directions for future research. The complex dialogue between the emitter and receiver based on either volatile cues or signals determines the outcome of information exchange, which shapes the communication pattern between individuals at the community level and determines their ecological implications at other trophic levels.
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Affiliation(s)
- Velemir Ninkovic
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Dimitrije Markovic
- Department of Crop Production EcologySwedish University of Agricultural SciencesUppsalaSweden
- Faculty of Agriculture, University of Banja LukaBanja LukaBosnia and Herzegovina
| | - Merlin Rensing
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
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Stupar S, Dragićević M, Tešević V, Stanković-Jeremić J, Maksimović V, Ćosić T, Devrnja N, Tubić L, Cingel A, Vinterhalter B, Ninković S, Savić J. Transcriptome Profiling of the Potato Exposed to French Marigold Essential Oil with a Special Emphasis on Leaf Starch Metabolism and Defense against Colorado Potato Beetle. PLANTS 2021; 10:plants10010172. [PMID: 33477577 PMCID: PMC7831324 DOI: 10.3390/plants10010172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/01/2021] [Accepted: 01/06/2021] [Indexed: 11/29/2022]
Abstract
Flower strips of French Marigold are commonly used pest repellents in potato fields. However, the effect of French Marigold volatiles on potato metabolism, physiology and induced defense is unknown. Thus, a microarray transcriptome analysis was performed to study the effects of French Marigold essential oil (EO) on laboratory-grown potato. After 8 h of exposure to EO, with gas chromatography/mass spectrometry (GC/MS)-detected terpinolene and limonene as dominant compounds, 2796 transcripts were differentially expressed with fold change >2 compared to expression in controls. A slightly higher number of transcripts had suppressed expression (1493 down- vs. 1303 up-regulated). Since transcripts, annotated to different photosynthesis-related processes, were mostly down-regulated, we selected a set of 10 genes involved in the leaf starch metabolism pathway, and validated microarray patterns using quantitative reverse transcription polymerase chain reaction (RT-qPCR). Except for decreased synthesis and induced decomposition of starch granule in leaves, 8 h long EO exposure slightly elevated the accumulation of sucrose compared to glucose and fructose in subjected potato plants. An in vitro feeding bioassay with Colorado potato beetle showed that EO-induced alternations on transcriptional level and in the sugars’ metabolism caused the enhancement of feeding behavior and overall development of the tested larvae. Results of comprehensive analysis of transcriptional responses in potato exposed to French Marigold EO provide a basis for further elucidation of molecular mechanisms underlying eco-physiological interactions in companion planting cropping systems.
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Affiliation(s)
- Sofija Stupar
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Milan Dragićević
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Vele Tešević
- Faculty of Chemistry, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia;
| | - Jovana Stanković-Jeremić
- Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Vuk Maksimović
- Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia;
| | - Tatjana Ćosić
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Nina Devrnja
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Ljiljana Tubić
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Aleksandar Cingel
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Branka Vinterhalter
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Slavica Ninković
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
| | - Jelena Savić
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (S.S.); (M.D.); (T.Ć.); (N.D.); (L.T.); (A.C.); (B.V.); (S.N.)
- Correspondence: ; Tel.: +381-64-2048-021
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Interpopulational Variations of Odorant-Binding Protein Expression in the Black Cutworm Moth, Agrotis ipsilon. INSECTS 2020; 11:insects11110798. [PMID: 33202803 PMCID: PMC7696954 DOI: 10.3390/insects11110798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/03/2020] [Accepted: 11/08/2020] [Indexed: 11/28/2022]
Abstract
Simple Summary Odorant-binding proteins (OBPs) are small soluble transporter proteins that are believed to play a key role in insect olfaction. However, there is an emerging set of data that shows a role in insecticide resistance for similar families of binding proteins. The black cutworm Agrotis ipsilon is a migrant species of moth known to feed on multiple types of crops (polyphagous) worldwide. It is therefore likely that the olfactory system of this species can be modulated to adapt to different environments. We compared gene expression between American and European continental populations of the moth. We found continental-specific expression of antennal binding protein X (ABPX) and general odorant-binding protein 2 (GOBP2), suggesting a function of these proteins in migration, environment recognition, crop change and adaptation that are required for a polyphagous species such as A. ipsilon. Abstract A long-range migrant species of moth (Agrotis ipsilon) has served as a model to compare the expression profiles of antennal proteins between different continental populations. Our results showed that the American and French populations of the black cutworm moth, A. ipsilon, expressed the same odorant-binding proteins (OBPs), but apparently in different levels. Electrophoretic analysis of antennal protein profiles and reverse transcription polymerase chain reaction using RNA as a template showed significant differences between the two populations in the expression of antennal binding protein-X (ABPX) and general odorant-binding protein-2 (GOBP2). However, the two A. ipsilon populations showed no differences in RNA levels coding for pheromone binding proteins (PBPs), suggesting that the expression of generalist OBPs is population-specific and could be affected by specific odor and/or chemical changes in external environmental conditions. To support the role of ABPX and GOBP2 with expression, the role of ABPX and GOBP2 is discussed in regard to odor detection, memorization and/or degradation of toxic chemical insecticides.
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Interactive Effects of an Herbivore-Induced Plant Volatile and Color on an Insect Community in Cranberry. INSECTS 2020; 11:insects11080524. [PMID: 32806513 PMCID: PMC7469195 DOI: 10.3390/insects11080524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 07/29/2020] [Accepted: 08/10/2020] [Indexed: 11/17/2022]
Abstract
Simple Summary Plants often increase their odor emissions after herbivore feeding damage, which in turn attract natural enemies of the herbivores such as insect predators. Synthetic versions of these so-called herbivore-induced plant volatiles (HIPVs) can be used to monitor populations of beneficial insects in agriculture. In addition, HIPVs can potentially attract the herbivores themselves. However, whether synthetic HIPVs interact with color to affect insect communities in farms is unknown. In this study, we tested a lure containing the HIPV methyl salicylate (named ‘PredaLure’) in combination with five different colored sticky traps to monitor insect populations in cranberry fields (also known as bogs). We found that hoverflies (also called flower flies or syrphid flies), whose larvae are predators of several insect pests including aphids and thrips, were attracted to PredaLure but this attraction was affected by the color of the trap. In fact, the numbers of hoverflies were 2–4 higher on yellow and white traps baited with PredaLure than on unbaited traps. Irrespective of trap color, plant-feeding thrips were also more attracted to PredaLure-baited than unbaited traps. Our study provides guidelines for the use of odor-baited colored sticky traps to monitor natural enemies such as hoverflies in an agricultural system like cranberries. Abstract Synthetic herbivore-induced plant volatiles (HIPVs) could be used to monitor insect populations in agroecosystems, including beneficial insects such as natural enemies of herbivores. However, it is unknown whether insect responses to HIPVs are influenced by visual cues, e.g., color. We hypothesized that the HIPV methyl salicylate (MeSA) interacts with color to affect insect captures on sticky traps. To test this, we conducted a 5 × 2 factorial field experiment in a commercial cranberry farm to monitor numbers of insect predators, parasitoids, and herbivores by using five colored sticky traps that were either baited with a MeSA lure (named ‘PredaLure’) or unbaited. At the community level, PredaLure increased captures of predators. At the individual-taxon level, captures of the hoverfly Toxomerus marginatus (Diptera: Syrphidae) and thrips (Thysanoptera: Thripidae) were higher on PredaLure-baited traps. However, only captures of T. marginatus on PredaLure-baited traps interacted significantly with color such that the numbers of this hoverfly on yellow and white traps were 2–4 times higher when baited with PredaLure. This study is the first to document the interactive effects of synthetic HIPVs and color on an insect community. Our findings have implications for optimal selection of HIPV-baited colored traps to monitor natural enemy populations in agroecosystems.
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Bryophytes can recognize their neighbours through volatile organic compounds. Sci Rep 2020; 10:7405. [PMID: 32366980 PMCID: PMC7198583 DOI: 10.1038/s41598-020-64108-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/28/2020] [Indexed: 02/03/2023] Open
Abstract
Communication between vascular plants through volatile organic compounds (VOCs) impacts on ecosystem functioning. However, nothing is known about that between non-vascular plants. To investigate plant-plant VOCs interaction in bryophytes we exposed rare peatland moss Hamatocaulis vernicosus to VOCs of its common competitor Sphagnum flexuosum in an air-flow system of connected containers under artificial light, supplemented or unsupplemented by far-red (FR) light. When exposed to VOCs of S. flexuosum, shoots of H. vernicosus elongated and emitted six times higher amounts of a compound chemically related to β-cyclocitral, which is employed in stress signalling and allelopathy in vascular plants. The VOCs emission was affected similarly by FR light addition, possibly simulating competition stress. This is the first evidence of plant-plant VOCs interaction in non-vascular plants, analogous to that in vascular plants. The findings open new possibilities for understanding the language and evolution of communication in land plants.
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Wróblewska-Kurdyk A, Dancewicz K, Gliszczyńska A, Gabryś B. New insight into the behaviour modifying activity of two natural sesquiterpenoids farnesol and nerolidol towards Myzus persicae (Sulzer) (Homoptera: Aphididae). BULLETIN OF ENTOMOLOGICAL RESEARCH 2020; 110:249-258. [PMID: 31559933 DOI: 10.1017/s0007485319000609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The effect of structurally related sesquiterpenoids (E,E)-farnesol and cis-nerolidol on the host-plant selection behaviour of the peach potato aphid Myzus persicae (Sulz.) was evaluated using electrical penetration graph (EPG) technique. No repellent effects of (E,E)-farnesol and (Z)-nerolidol to M. persicae were found but aphid probing activities on (E,E)-farnesol- and cis-nerolidol-treated plants were restrained. During non-phloem phases of probing, neither (E,E)-farnesol nor (Z)-nerolidol affected the cell puncture activity. On (E,E)-farnesol-treated plants, the total duration of phloem phase, the mean duration of individual sustained ingestion periods were significantly lower, and the proportion of phloem salivation was higher than on control plants. On (Z)-nerolidol-treated plants, the occurrence of the first phloem phase was delayed, and the frequency of the phloem phase was lower than on control plants. The freely moving aphids were reluctant to remain on (E,E)-farnesol- and (Z)-nerolidol-treated leaves for at least 24 h after exposure. (E,E)-Farnesol and (Z)-nerolidol show complementary deterrent properties, (E,E)-farnesol showing ingestive and post-ingestive activities and nerolidol showing pre-ingestive, ingestive, and post-ingestive deterrent activities.
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Affiliation(s)
- Anna Wróblewska-Kurdyk
- Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516Zielona Góra, Poland
| | - Katarzyna Dancewicz
- Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516Zielona Góra, Poland
| | - Anna Gliszczyńska
- Department of Chemistry, Wrocław University of Environmental AND Life Sciences, Norwida 25, 50-375Wrocław, Poland
| | - Beata Gabryś
- Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516Zielona Góra, Poland
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Guilbaud CSE, Khudr MS. Disturbance and competition drive diversity effects in cabbage-aphid-onion systems with intra-specific genetic variation. BULLETIN OF ENTOMOLOGICAL RESEARCH 2020; 110:123-135. [PMID: 31190661 DOI: 10.1017/s0007485319000373] [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: 06/09/2023]
Abstract
Decreased reliance on pesticides can be achieved through a clever use of eco-evolutionary knowledge via intercropping economically valuable crops with companion plants that can hamper pest outbreaks. We created a greenhouse multi-layered microcosm system to test two potato peach aphid clones, performing alone or in competition, on mixes of genetically variable cultivars of cabbage, with and without onion. The onion acted as a nuisance/disturbance for the pest, which was generally for the benefit of the cabbage albeit both plants sharing space and nutrients. The onion effect was context-specific and differed by aphid genotype. Onion variable nuisance negatively affected the numbers of one aphid genotype (green) across all contexts, while the other genotype (pink) numbers were decreased in two contexts only. However, the green performed better than the pink on all cases of cabbage di-mixes despite its numbers being capped when the onion was present. Further, there was also a general aphid propensity to wander off the plant along with a differential production of winged morphs to escape the onion-affected environments. Moreover, through a comparative increase in dry mass, which was subject to onion and aphid effects, a diversity effect was found where the cabbages of fully genetically variable microcosms sustained similar final dry mass compared with non-infested microcosms. Our findings provide fresh insights into the use of multi-layered contextual designs that not only allow disentangling the relative effects of genetic variation and modes of interaction, but also help integrate their benefits into pest management in view of companion planting.
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Affiliation(s)
- C S E Guilbaud
- Institut für Biologie, Freie Universität Berlin, Königin-Luise-Straße 1-3, 14195 Berlin, Germany
| | - M S Khudr
- Faculty of Biology, Medicine and Health, The University of Manchester, Michael Smith Building, M13 9PT, Manchester, UK
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Meents AK, Mithöfer A. Plant-Plant Communication: Is There a Role for Volatile Damage-Associated Molecular Patterns? FRONTIERS IN PLANT SCIENCE 2020; 11:583275. [PMID: 33178248 PMCID: PMC7593327 DOI: 10.3389/fpls.2020.583275] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/17/2020] [Indexed: 05/16/2023]
Abstract
Damage-associated molecular patterns (DAMPs) are an ancient form of tissue-derived danger or alarm signals that initiate cellular signaling cascades, which often initiate defined defense responses. A DAMP can be any molecule that is usually not exposed to cells such as cell wall components, peptides, nucleic acid fragments, eATP and other compounds. DAMPs might be revealed upon tissue damage or during attack. Typically, DAMPs are derived from the injured organism. Almost all eukaryotes can generate and respond to DAMPs, including plants. Besides the molecules mentioned, certain volatile organic compounds (VOCs) can be considered as DAMPs. Due to their chemical nature, VOCs are supposed to act not only locally and systemically in the same plant but also between plants. Here, we focus on damage-induced volatiles (DIVs) that might be regarded as DAMPs; we will review their origin, chemical nature, physiochemical properties, biological relevance and putative function in plant-plant communications. Moreover, we discuss the possibility to use such airborne DAMPs as eco-friendly compounds to stimulate natural defenses in agriculture in order to avoid pesticides.
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Tolosa TA, Tamiru A, Midega CAO, Van Den Berg J, Birkett MA, Woodcock CM, Bruce TJA, Kelemu S, Pickett JA, Khan ZR. Molasses Grass Induces Direct and Indirect Defense Responses in Neighbouring Maize Plants. J Chem Ecol 2019; 45:982-992. [PMID: 31784860 DOI: 10.1007/s10886-019-01122-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/20/2019] [Accepted: 10/28/2019] [Indexed: 01/02/2023]
Abstract
Plants have evolved intricate defence strategies against herbivore attack which can include activation of defence in response to stress-related volatile organic compounds (VOCs) emitted by neighbouring plants. VOCs released by intact molasses grass (Melinis minutiflora), have been shown to repel stemborer, Chilo partellus (Swinhoe), from maize and enhance parasitism by Cotesia sesamiae (Cameron). In this study, we tested whether the molasses grass VOCs have a role in plant-plant communication by exposing different maize cultivars to molasses grass for a 3-week induction period and then observing insect responses to the exposed plants. In bioassays, C. partellus preferred non-exposed maize landrace plants for egg deposition to those exposed to molasses grass. Conversely, C. sesamiae parasitoid wasps preferred volatiles from molasses grass exposed maize landraces compared to volatiles from unexposed control plants. Interestingly, the molasses grass induced defence responses were not observed on hybrid maize varieties tested, suggesting that the effect was not simply due to absorption and re-emission of VOCs. Chemical and electrophysiological analyses revealed strong induction of bioactive compounds such as (R)-linalool, (E)-4,8-dimethyl-1,3,7-nonatriene and (E,E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene from maize landraces exposed to molasses grass volatiles. Our results suggest that constitutively emitted molasses grass VOCs can induce direct and indirect defence responses in neighbouring maize landraces. Plants activating defences by VOC exposure alone could realize enhanced levels of resistance and fitness compared to those that launch defence responses upon herbivore attack. Opportunities for exploiting plant-plant signalling to develop ecologically sustainable crop protection strategies against devastating insect pests such as stemborer C. partellus are discussed.
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Affiliation(s)
- Tigist A Tolosa
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
- Department of Agriculture Food and Resource Sciences, University of Maryland Eastern Shore, Princess Anne, MD, 21853, USA
| | - Amanuel Tamiru
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya.
| | - Charles A O Midega
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
| | - Johnnie Van Den Berg
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
| | - Michael A Birkett
- Biointeractions and Crop Protection Department, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UK
| | - Christine M Woodcock
- Biointeractions and Crop Protection Department, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UK
| | - Toby J A Bruce
- School of Life Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - Segenet Kelemu
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
| | - John A Pickett
- School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK
| | - Zeyaur R Khan
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
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17
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Turan S, Kask K, Kanagendran A, Li S, Anni R, Talts E, Rasulov B, Kännaste A, Niinemets Ü. Lethal heat stress-dependent volatile emissions from tobacco leaves: what happens beyond the thermal edge? JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:5017-5030. [PMID: 31289830 PMCID: PMC6850906 DOI: 10.1093/jxb/erz255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 05/20/2019] [Indexed: 05/10/2023]
Abstract
Natural vegetation is predicted to suffer from extreme heat events as a result of global warming. In this study, we focused on the immediate response to heat stress. Photosynthesis and volatile emissions were measured in the leaves of tobacco (Nicotiana tabacum cv. Wisconsin 38) after exposure to heat shock treatments between 46 °C and 55 °C. Exposure to 46 °C decreased photosynthetic carbon assimilation rates (A) by >3-fold. Complete inhibition of A was observed at 49 °C, together with a simultaneous decrease in the maximum quantum efficiency of PSII, measured as the Fv/Fm ratio. A large increase in volatile emissions was observed at 52 °C. Heat stress resulted in only minor effects on the emission of monoterpenes, but volatiles associated with membrane damage such as propanal and (E)-2-hexenal+(Z)-3-hexenol were greatly increased. Heat induced changes in the levels of methanol and 2-ethylfuran that are indicative of modification of cell walls. In addition, the oxidation of metabolites in the volatile profiles was strongly enhanced, suggesting the acceleration of oxidative processes at high temperatures that are beyond the thermal tolerance limit.
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Affiliation(s)
- Satpal Turan
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Kaia Kask
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Arooran Kanagendran
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Shuai Li
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Rinaldo Anni
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Eero Talts
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Bahtijor Rasulov
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Astrid Kännaste
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
| | - Ülo Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia
- Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia
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18
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Dardouri T, Gautier H, Ben Issa R, Costagliola G, Gomez L. Repellence of Myzus persicae (Sulzer): evidence of two modes of action of volatiles from selected living aromatic plants. PEST MANAGEMENT SCIENCE 2019; 75:1571-1584. [PMID: 30461184 DOI: 10.1002/ps.5271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/05/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Intercropping companion plants (CPs) with horticultural crops could be an eco-friendly strategy to optimize pest management. In this research, volatile organic compounds (VOCs) emitted by some CPs were investigated for their repellent properties towards the green peach aphid (Myzus persicae Sulzer). The aim of this study was to understand the modes of action involved: direct effects on the aphid and/or indirect effects via the host plant (pepper, Capsicum annuum L.). RESULTS We identified two promising repellent CP species: the volatile blend from basil (Ocimum basilicum, direct repellent effect) and the mixture of (or previously intercropped) C. annuum plants with Tagetes patula cv. Nana (indirect effect). This effect was cultivar-dependent and linked to the volatile bouquet. For the 16 compounds present in the O. basilicum or T. patula bouquets tested individually, (E)-β-farnesene, and eugenol reported good repellent properties against M. persicae. Other compounds were repellent at medium and/or highest concentrations. Thus, the presence of repellent VOCs in a mixture does not mean that it has a repellent propriety. CONCLUSION We identified two promising repellent CP species towards M. persicae, with a likely effect of one CP's VOCs on the host plant repellency and highlighted the specific effectiveness of VOC blends. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Tarek Dardouri
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Hélène Gautier
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Refka Ben Issa
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Guy Costagliola
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Laurent Gomez
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
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19
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Ninkovic V, Rensing M, Dahlin I, Markovic D. Who is my neighbor? Volatile cues in plant interactions. PLANT SIGNALING & BEHAVIOR 2019; 14:1634993. [PMID: 31267830 PMCID: PMC6768235 DOI: 10.1080/15592324.2019.1634993] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 06/18/2019] [Indexed: 05/19/2023]
Abstract
One of the most important challenges for individual plants is coexistence with their neighbors. To compensate for their sessile lifestyle, plants developed complex and sophisticated chemical systems of communication among each other. Site-specific biotic and abiotic factors constantly alter the physiological activity of plants, which causes them to release various secondary metabolites in their environments. Volatile organic compounds (VOCs) are the most common cues that reflect a plant's current physiological status. In this sense, the identity of its immediate neighbors may have the greatest impact for a plant, as they share the same available resources. Plants constantly monitor and respond to these cues with great sensitivity and discrimination, resulting in specific changes in their growth pattern and adjusting their physiology, morphology, and phenotype accordingly. Those typical competition responses in receivers may increase their fitness as they can be elicited even before the competition takes place. Plant-plant interactions are dynamic and complex as they can include many different and important surrounding cues. A major challenge for all individual plants is detecting and actively responding only to "true" cues that point to real upcoming threat. Such selective responses to highly specific cues embedded in volatile bouquets are of great ecological importance in understanding plant-plant interactions. We have reviewed recent research on the role of VOCs in complex plant-plant interactions in plant-cross kingdom and highlighted their influence on organisms at higher trophic levels.
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Affiliation(s)
- Velemir Ninkovic
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- CONTACT Velemir Ninkovic Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Merlin Rensing
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Iris Dahlin
- Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Dimitrije Markovic
- Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Faculty of Agriculture, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
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20
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Sukegawa S, Shiojiri K, Higami T, Suzuki S, Arimura GI. Pest management using mint volatiles to elicit resistance in soy: mechanism and application potential. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 96:910-920. [PMID: 30156351 DOI: 10.1111/tpj.14077] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/21/2018] [Accepted: 08/24/2018] [Indexed: 05/12/2023]
Abstract
Plants can eavesdrop on volatile cues emitted from neighboring plants to boost their defense responses. When 10 categories of mints were tested for their effects on Glycine max (soybean) plants cultivated nearby, candy mint (Mentha × piperita cv. Candy) and peppermint (Mentha × piperita L.) induced the strongest enhancement in RNA levels of defense genes in the soybean leaves. The mechanism by which the mint volatiles enhanced these transcript levels was based on histone acetylation within the promoter regions of defense genes. These increases in transcript levels were induced when receiver plants were cultivated near to candy mint, but the priming of the defense responses was instead induced when receiver plants were cultivated at mid-length intervals. Field assays revealed that anti-herbivore ability of soy was strengthened both by co-cultivation and by pre-incubation of receiver plants with candy mint. The same held true for another receiver, Brassica rapa, when the receiver was co-cultivated or pre-incubated with peppermint. Exposure to mint volatiles resulted in lower damage to receiver plants, although ecological effects on the herbivores and predators probably also contributed. Together, our findings indicate that pest management systems relying on mint as companion plants might be commercially useful for reducing herbivore damage in crops.
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Affiliation(s)
- Satoru Sukegawa
- Department of Biological Science & Technology, Faculty of Industrial Science & Technology, Tokyo University of Science, 125-8585, Tokyo, Japan
| | - Kaori Shiojiri
- Department of Agriculture, Ryukoku University, 520-2194, Otsu, Japan
| | - Tomota Higami
- Department of Biological Science & Technology, Faculty of Industrial Science & Technology, Tokyo University of Science, 125-8585, Tokyo, Japan
| | - Syunpei Suzuki
- Department of Biological Science & Technology, Faculty of Industrial Science & Technology, Tokyo University of Science, 125-8585, Tokyo, Japan
| | - Gen-Ichiro Arimura
- Department of Biological Science & Technology, Faculty of Industrial Science & Technology, Tokyo University of Science, 125-8585, Tokyo, Japan
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Silva RF, Rabeschini GBP, Peinado GLR, Cosmo LG, Rezende LHG, Murayama RK, Pareja M. The Ecology of Plant Chemistry and Multi-Species Interactions in Diversified Agroecosystems. FRONTIERS IN PLANT SCIENCE 2018; 9:1713. [PMID: 30524464 PMCID: PMC6262048 DOI: 10.3389/fpls.2018.01713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 11/05/2018] [Indexed: 05/27/2023]
Abstract
Over the past few years, our knowledge of how ecological interactions shape the structure and dynamics of natural communities has rapidly advanced. Plant chemical traits play key roles in these processes because they mediate a diverse range of direct and indirect interactions in a community-wide context. Many chemically mediated interactions have been extensively studied in industrial cropping systems, and thus have focused on simplified, pairwise and linear interactions that rarely incorporate a community perspective. A contrasting approach considers the agroecosystem as a functioning whole, in which food production occurs. It offers an opportunity to better understand how plant chemical traits mediate complex interactions which can enhance or hinder ecosystem functions. In this paper, we argue that studying chemically mediated interactions in agroecosystems is essential to comprehend how agroecosystem services emerge and how they can be guaranteed through ecosystem management. First, we discuss how plant chemical traits affect and are affected by ecological interactions. We then explore research questions and future directions on how studying chemical mediation in complex agroecosystems can help us understand the emergence and management of ecosystem services, specifically biological control and pollination.
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Affiliation(s)
- Rodolfo F Silva
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | - Gabriela B P Rabeschini
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | | | - Leandro G Cosmo
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | - Luiz H G Rezende
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | - Rafael K Murayama
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | - Martín Pareja
- Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
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22
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Caruso CM, Parachnowitsch AL. Do Plants Eavesdrop on Floral Scent Signals? TRENDS IN PLANT SCIENCE 2016; 21:9-15. [PMID: 26476624 DOI: 10.1016/j.tplants.2015.09.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 09/02/2015] [Accepted: 09/07/2015] [Indexed: 05/18/2023]
Abstract
Plants emit a diverse array of volatile organic compounds that can function as cues to other plants. Plants can use volatiles emitted by neighbors to gain information about their environment, and respond by adjusting their phenotype. Less is known about whether the many different volatile signals that plants emit are all equally likely to function as cues to other plants. We review evidence for the function of floral volatile signals and conclude that plants are as likely to perceive and respond to floral volatiles as to other, better-studied volatiles. We propose that eavesdropping on floral volatile cues is particularly likely to be adaptive because plants can respond to these cues by adjusting traits that directly affect pollination and mating.
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Affiliation(s)
- Christina M Caruso
- Department of Integrative Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
| | - Amy L Parachnowitsch
- Plant Ecology and Evolution, Evolutionary Biology Centre, Uppsala University, 75236 Uppsala, Sweden
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Himanen SJ, Bui TNT, Maja MM, Holopainen JK. Utilizing associational resistance for biocontrol: impacted by temperature, supported by indirect defence. BMC Ecol 2015; 15:16. [PMID: 26022675 PMCID: PMC4467918 DOI: 10.1186/s12898-015-0048-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 05/13/2015] [Indexed: 11/26/2022] Open
Abstract
Background Associational herbivore resistance is potentiated by neighbouring heterogenic plant species that impact a focal plant’s attraction to herbivores or the damage that they cause. One mechanism to confer associational resistance is believed to be exposure to neighbour-emitted volatiles, the receivers of which range from intra- and interspecific neighbour plants to higher-trophic-level insects. In previous studies the passive adsorption of neighbour-emitted semivolatiles has been reported, but little is known regarding the mechanisms and ecological consequences on the receiver plant and its associated biota. To utilize volatile-based associational resistance for agricultural applications, it is imperative to know its effectiveness under varying diurnal temperatures and whether herbivore natural enemies, providing biological control, are impacted. Mimicking varying diurnal temperatures in a laboratory set-up, we assessed how the tritrophic model system Brassica oleracea var. italica (broccoli)–Plutella xylostella (crucifer specialist herbivore)–Cotesia vestalis (endoparasitoid of P. xylostella) is influenced by exposure to the natural semivolatile emitter plant Rhododendron tomentosum Harmaja. Results Rhododendron tomentosum-exposed B. oleracea was less susceptible to P. xylostella oviposition at both night-time (12°C) and day-time (22°C) temperatures and less favoured and damaged by P. xylostella larvae at 12°C. Exposure did not interfere with indirect defence, i.e. attraction of the natural enemy C. vestalis on host-damaged, R. tomentosum-exposed B. oleracea under 22°C, while there was a reduction in attraction (marginal preference towards host-damaged B. oleracea) under 12°C. Conclusions The ability of R. tomentosum exposure to render associational resistance against an agriculturally important Brassica herbivore P. xylostella without severely compromising the specialist parasitoid C. vestalis host location encourages further studies on the potential of using this naturally abundant plant for biocontrol. The generality of our finding on temperature as a potential regulating mechanism for the efficacy of semivolatile emitter-based associational resistance towards specialist pest larval damage should be further studied in natural and agricultural associations. Our study emphasizes the need to develop techniques to compare volatiles at the leaf versus air interface and associate their appearance and ecological role with times of activity and level of specialisation of herbivores and their natural enemies.
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Affiliation(s)
- Sari J Himanen
- Natural Resources Institute Finland (Luke), Management and Production of Renewable Resources, Production Systems, Lönnrotinkatu 5, FI-50100, Mikkeli, Finland.
| | - Thuy Nga T Bui
- Department of Environmental Science, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, FI-70211, Kuopio, Finland.
| | - Mengistu M Maja
- Department of Environmental Science, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, FI-70211, Kuopio, Finland.
| | - Jarmo K Holopainen
- Department of Environmental Science, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, FI-70211, Kuopio, Finland.
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Meiners T. Chemical ecology and evolution of plant-insect interactions: a multitrophic perspective. CURRENT OPINION IN INSECT SCIENCE 2015; 8:22-28. [PMID: 32846665 DOI: 10.1016/j.cois.2015.02.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 02/02/2015] [Accepted: 02/04/2015] [Indexed: 06/11/2023]
Abstract
Gaining a better understanding of infochemical-mediated host plant/host location behaviour of herbivores and their natural enemies in complex and heterogeneous chemical environments provides a multitrophic perspective on the chemical ecology and evolution of plant-insect interactions. Here I focus on the sources of chemical complexity formed primarily by both host and non-host plants in their interaction with higher trophic levels and on the effect of this complexity on herbivores and their natural enemies. Future research should define the patterns and processes involved in these interactions, which are often complex, dynamic and intricately unique. Studying multitrophic interactions under more realistic conditions will help to identify mechanisms with evolutionary potential and patterns that can be used in biological control practice.
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Affiliation(s)
- Torsten Meiners
- Freie Universitaet Berlin, Dahlem Centre of Plant Sciences, Institute of Biology, Haderslebener Straße 9, 12163 Berlin, Germany.
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