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Correction to: Mate attraction, chemical defense, and competition avoidance in the parasitoid wasp Leptopilina pacifica Chemoecology (IF 2.05) Pub Date : 2021-01-18 Lea C. Böttinger, Frederic Hüftlein, Johannes Stökl
While typesetting the article the below errors are occurred.
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Rectal gland exudates and emissions of Bactrocera bryoniae : chemical identification, electrophysiological and pheromonal functions Chemoecology (IF 2.05) Pub Date : 2020-11-28 Saeedeh Noushini, Soo Jean Park, Ian Jamie, Joanne Jamie, Phillip Taylor
Bactrocera bryoniae is a polyphagous and economically significant fruit fly found in Indonesia, Papua New Guinea and Australia. To understand chemical-mediated sexual communication, and the potential for novel pheromone-based attractants for monitoring and mass-trapping of B. bryoniae, rectal gland exudates and emissions from sexually mature males and females were investigated. Gas chromatography–mass
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The ripeness stage but not the cultivar influences the attraction of Anastrepha obliqua to guava Chemoecology (IF 2.05) Pub Date : 2020-11-13 Fernando Cortés-Martínez, Leopoldo Cruz-López, Pablo Liedo, Julio C. Rojas
The West Indian fruit fly, Anastrepha obliqua (Macquart), infests a wide diversity of tropical fruit. Previous studies suggest that A. obliqua adults are attracted to volatile compounds common in different hosts. However, to date, most studies have used ripe fruit for the identification of attractive compounds. In this study, we investigated the attraction of sexually mature A. obliqua females and
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Highly divergent cuticular hydrocarbon profiles in the cleptobiotic ants of the Ectatomma ruidum species complex Chemoecology (IF 2.05) Pub Date : 2020-11-13 Kenzy I. Peña-Carrillo, Chantal Poteaux, Chloé Leroy, Rubí N. Meza-Lázaro, Jean-Paul Lachaud, Alejandro Zaldívar-Riverón, Maria Cristina Lorenzi
In social insects, chemical communication is the main communication mode among colony members, which use the blends of cuticular hydrocarbons as recognition cues to discriminate between nestmates and non-nestmates and to prevent the exploitation of their nest resources by aliens. The aim of this study was to assess the variation of nestmate recognition cues in the ant Ectatomma ruidum, a species complex
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Mate attraction, chemical defense, and competition avoidance in the parasitoid wasp Leptopilina pacifica Chemoecology (IF 2.05) Pub Date : 2020-11-12 Lea C. Böttinger, Frederic Hüftlein, Johannes Stökl
A major hypothesis for the evolution of chemical signals is that pheromones arise from non-communicative precursor compounds. However, data supporting this hypothesis are rare, primarily because the original functions of the antecedent compounds often have been lost. A notable exception, however, is the parasitoid wasp species Leptopilina heterotoma, whose compound (−)-iridomyrmecin is used as a defensive
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Raspberry ketone supplements provided to immature male Queensland fruit fly, Bactrocera tryoni (Froggatt), increase the amount of volatiles in rectal glands Chemoecology (IF 2.05) Pub Date : 2020-11-11 Humayra Akter, Jeanneth Pérez, Soo Jean Park
Raspberry ketone (RK) supplements provided together with sugar and yeast hydrolysate accelerate sexual maturation and increase mating success of Queensland fruit fly (‘Qfly’) males. However, the mechanisms underlying this enhanced mating ability are currently unknown. Volatiles are an important element of Qfly sexual calling and courtship and so changes in volatiles quantity or quality may be involved
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A synergism between dimethyl trisulfide and methyl thiolacetate in attracting carrion-frequenting beetles demonstrated by use of a chemically-supplemented minimal trap Chemoecology (IF 2.05) Pub Date : 2020-10-21 Stephen T. Trumbo, John A. Dicapua
Volatile organic compounds derived from microbes recruit insects to carrion, shaping community assembly and ecological succession. The importance of individual volatiles and interactions between volatiles are difficult to assess in the field because of (1) the myriad compounds from decomposing animals and (2) the likelihood that complex volatile blends are important for the final approach to carrion
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A comparison of the direct and indirect defence abilities of cultivated maize versus perennial and annual teosintes Chemoecology (IF 2.05) Pub Date : 2020-10-20 Natalia Naranjo-Guevara, Maria Fernanda Gomes Villalba Peñaflor, Diego Bastos Silva, José Mauricio Simões Bento
The transition from a perennial to an annual life cycle, as well as domestication, are expected to increase plant growth and reproduction at the same time that anti-herbivore defences are reduced. Here, we investigated the effects of the life-history transition (the perennial teosinte Zea diploperennis to the annual teosinte Z. mays ssp. mexicana) and domestication of Zea (annual teosinte to the modern
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Behavioral response of the greenhouse whitefly ( Trialeurodes vaporariorum ) to plant volatiles of Ocimum basilicum and Tagetes minuta Chemoecology (IF 2.05) Pub Date : 2020-10-16 Francis Kiamba Matu, Lucy Kananu Murungi, Samira Mohamed, Emilie Deletre
The use of chemical pesticides as a main pest control strategy has been highly criticised due to environmental pollution and negative effects on natural enemies of pests. In modern farming, it is essential to implement integrated pest management approaches that seek to control insect pests without causing environmental damage, e.g. the use of companion plants. Basil and Mexican marigold are often used
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Correction to: Electrophysiological and behavioral responses Dendroctonus frontalis and D. terebrans (Coleoptera: Curculionidae) to resin odors of host pines ( Pinus spp.) Chemoecology (IF 2.05) Pub Date : 2020-10-14 Holly L. Munro, Kamal J. K. Gandhi, Brittany F. Barnes, Cristian R. Montes, John T. Nowak, William P. Shepherd, Caterina Villari, Brian T. Sullivan
The title of the article the word “of” has been deleted.
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The phytopathogen ‘ Candidatus Phytoplasma mali’ alters apple tree phloem composition and affects oviposition behavior of its vector Cacopsylla picta Chemoecology (IF 2.05) Pub Date : 2020-09-26 Louisa Maria Görg, Jannicke Gallinger, Jürgen Gross
Apple proliferation disease is caused by the phloem-dwelling bacterium ‘Candidatus Phytoplasma mali’, inducing morphological changes in its host plant apple, such as witches’ broom formation. Furthermore, it triggers physiological alterations like emission of volatile organic compounds or phytohormone levels in the plant. In our study, we assessed phytoplasma-induced changes in the phloem by sampling
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The biogeochemistry of copper metallophytes in the Roseby Corridor (North-West Queensland, Australia) Chemoecology (IF 2.05) Pub Date : 2020-09-26 Roger H. Tang, Peter D. Erskine, Richard Lilly, Antony van der Ent
The ability of Australian native metallophytes to tolerate extreme metal concentrations in the soil and other difficult edaphic conditions is still not well understood. Copper is an essential micronutrient for plants to survive, but at high concentrations (> 20 µg g−1) in plant tissues, it can cause foliar chlorosis, stunted growth, and ultimately plant death. The Roseby Corridor in Central Queensland
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The trail-following pheromone of the termite Serritermes serrifer Chemoecology (IF 2.05) Pub Date : 2020-09-25 David Sillam-Dussès, Jaromír Hradecký, Petr Stiblik, Hélida Ferreira da Cunha, Tiago F. Carrijo, Michael J. Lacey, Thomas Bourguignon, Jan Šobotník
The Neotropical family Serritermitidae is a monophyletic group of termites including two genera, Serritermes and Glossotermes, with different way-of-life, the former being the sole obligatory inquiline among “lower” termites, while the latter is a single-site nester feeding on dry rotten red wood. Like the most advanced termite’s family, the Termitidae, the Serritermitidae is an inner group of the
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PBP genes regulated by the development of the ovaries, sex pheromone release, mating and oviposition behavior in Conogethes punctiferalis (Guenée) Chemoecology (IF 2.05) Pub Date : 2020-08-26 Dapeng Jing, Tiantao Zhang, Sivaprasath Prabu, Shuxiong Bai, Kanglai He, Junbo Luan, Zhenying Wang
Mating and oviposition behavior can change the gene expression levels in insect antennae, especially for pheromone-binding protein (PBP) genes. In this study, we observed the development of the ovaries in the yellow peach moth, Conogethes punctiferalis (Guenée), from its early emergence to full maturity. Sex pheromones in the sex gland reached their highest quantity and influenced the expression of
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Do plant volatiles confuse rather than guide foraging behavior of the aphid hyperparasitoid Dendrocerus aphidum ? Chemoecology (IF 2.05) Pub Date : 2020-08-25 Jetske G. de Boer, Petra J. Hollander, Daan Heinen, Divya Jagger, Pim van Sliedregt, Lucia Salis, Martine Kos, Louise E. M. Vet
Many species of parasitoid wasps use plant volatiles to locate their herbivorous hosts. These volatiles are reliable indicators of host presence when their emission in plants is induced by herbivory. Hyperparasitoids may also use information from lower trophic levels to locate their parasitoid hosts but little is known about the role of volatiles from the plant–host complex in the foraging behavior
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Correlation in plant volatile metabolites: physiochemical properties as a proxy for enzymatic pathways and an alternative metric of biosynthetic constraint Chemoecology (IF 2.05) Pub Date : 2020-08-14 Jordan A. Dowell, Chase M. Mason
From intra-individual regulation of metabolism to entire ecosystem functioning, the thousands of biogenic compounds produced by organisms serve as a major component of ecological and evolutionary diversity mediating interactions across scales. Earlier work considers canonical reactions, defined as reactions specified along accepted (experimentally validated or theoretically postulated) biosynthetic
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Relative response of male Bactrocera frauenfeldi (Diptera: Tephritidae) to phenylbutanoid phytochemicals: implications for fruit fly control and plant–insect interactions Chemoecology (IF 2.05) Pub Date : 2020-07-24 S. L. Wee, J. E. Royer, J. Herring, D. G. Mayer, K. H. Tan
The interactions between Dacini male fruit flies and phytochemical male lures are unique. Lure response, fate and its effects after consumption on fruit fly mating behaviour are species- and lure-specific. Bactrocera frauenfeldi is known to respond to the phenylbutanoids raspberry ketone (RK) and cue lure (CL), anisyl acetone (AA), and zingerone (ZN), which are produced by some rainforest orchids.
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Identification of a hyperactive pheromone analog in field tests of pheromone mimics for two click beetle species in the genus Cardiophorus (Coleoptera: Elateridae) Chemoecology (IF 2.05) Pub Date : 2020-07-16 Jacqueline M. Serrano, Yunfan Zou, Jocelyn G. Millar
Females of two click beetle species, Cardiophorus tenebrosus and C. edwardsi (Coleoptera: Elateridae), produce methyl (3R,6E)-2,3-dihydrofarnesoate as their sex pheromone. We had serendipitously discovered that males of both species were also strongly attracted to (R)-fuscumol acetate ((E)-6,10-dimethylundeca-5,9-dien-2-yl acetate), a known longhorned beetle (Coleoptera: Cerambycidae) pheromone, due
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Finding a fresh carcass: bacterially derived volatiles and burying beetle search success Chemoecology (IF 2.05) Pub Date : 2020-06-27 Stephen T. Trumbo, Sandra Steiger
When burying beetles first emerge as adults, they search for well-rotted carcasses with fly maggots on which to feed. After attaining reproductive competence, they switch their search and respond to a small, fresh carcass to prepare for their brood. Because the cues used to locate a feeding versus a breeding resource both originate from carrion, the beetles must respond to subtle changes in volatiles
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Use of semiochemicals for surveillance and control of hematophagous insects Chemoecology (IF 2.05) Pub Date : 2020-06-23 Collins K. Mweresa, W. R. Mukabana, J. J. A. van Loon, M. Dicke, W. Takken
Reliance on broad-spectrum insecticides and chemotherapeutic agents to control hematophagous insect vectors, and their related diseases is threatened by increasing insecticide and drug resistance, respectively. Thus, development of novel, alternative, complementary and effective technologies for surveillance and control of such insects is strongly encouraged. Semiochemicals are increasingly developed
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Cues of dominance hierarchy, fertility and nestmate recognition in the primitively eusocial wasp Mischocyttarus parallelogrammus (Vespidae: Polistinae: Mischocyttarini) Chemoecology (IF 2.05) Pub Date : 2020-06-16 Rafael Carvalho da Silva, Olga Coutinho Togni, Edilberto Giannotti, Fabio Santos do Nascimento
Chemical communication is pivotal for social insects to ensure proper functioning of their colonies. Cuticular hydrocarbons (CHCs) are the most well-known class of compounds used to regulate different types of behavioural interaction within a social context. Queens of highly eusocial insects rely on the use of chemical communication to keep their reproductive monopoly, whereas queens of primitively
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Thapsigargins and induced chemical defence in Thapsia garganica Chemoecology (IF 2.05) Pub Date : 2020-06-11 Karen Martinez-Swatson, Carmen Quiñonero-López, Madeleine Ernst, Nina Rønsted, Christopher James Barnes, Henrik Toft Simonsen
Thapsigargin and related compounds are produced by Thapsia garganica L. (Apiaceae) and are thought to be a defence compound against herbivory. Thapsigargin inhibits the sarco-endoplasmic reticulum Ca2+-ATPase (SERCA) in both vertebrates and invertebrates. This activity is responsible for its potent toxicity, as well as the potential use to treat solid tumours. However, the ecological role and regulation
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Response of the neonate larvae of Cactoblastis cactorum to synthetic cactoblastins, a newly identified class of pheromonally-active chemicals found in the caterpillar’s mandibular glands Chemoecology (IF 2.05) Pub Date : 2020-06-08 Francis M. Rossi, Daniel Rojas, Danielle A. Cervasio, John Posillico, Kyle Parella, Terrence D. Fitzgerald
The pre-excavation activity of the neonate larvae of Cactoblastis cactorum (Lepidoptera: Pyralidae) is typically confined to an arena that encircles the base of their egg stick. If the caterpillars are unable to penetrate the host plant within the arena, they strike off en masse in search of a more favorable site, marking their pathway with secretions from their mandibular glands. One component of
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Electrophysiological and behavioral responses Dendroctonus frontalis and D. terebrans (Coleoptera: Curculionidae) to resin odors of host pines ( Pinus spp.) Chemoecology (IF 2.05) Pub Date : 2020-05-24 Holly L. Munro, Kamal J. K. Gandhi, Brittany F. Barnes, Cristian R. Montes, John T. Nowak, William P. Shepherd, Caterina Villari, Brian T. Sullivan
Southern pine beetle (Dendroctonus frontalis Zimmermann) and black turpentine beetle (Dendroctonus terebrans Olivier) are two sympatric bark beetle pests of the southeastern United States of America that adversely affect pine (Pinus spp.) health. Successful host tree colonization and reproduction is dependent on a chemical communication system that includes compounds produced by both the beetles and
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Cloning, expression and enzymatic characterization of a cystatin gene involved in herbivore defense in tea plant ( Camellia sinensis ) Chemoecology (IF 2.05) Pub Date : 2020-05-23 Xin Zhang, Wei Ran, Fengjing Liu, Xiwang Li, Wanjun Hao, Xiaoling Sun
Plant cystatins play crucial roles in the process of plant defense against herbivorous insects. A cDNA clone, designated CsCPI2, was isolated from Camellia sinensis cv. Longjing 43 using 5′-/3′-RACE extension. The full-length cDNA gene is 618 bp in size, encodes 205 amino acid residues, and has a deduced molecular weight of 23.07 kDa. CsCPI2 was different from the already published CsCPI1, as the two
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Attraction of the sugarcane billbug, Sphenophorus levis , to vinasse and its volatile composition Chemoecology (IF 2.05) Pub Date : 2020-05-20 Lizandra F. Martins, Mateus Tonelli, José Mauricio S. Bento, César J. Bueno, Luís Garrigós Leite
The expansion of sugarcane plantations in Brazil and the discarding of vinasse into the sugarcane field have been speculated to contribute to the growing population of the billbug Sphenophorus levis. This beetle attacks the root system and forms galleries in rhizomes, causing damage or even the death of host plants. It has been suspected that vinasse, a residue from ethanol production, can release
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Host preference in parasitic phorid flies: response of Pseudacteon curvatus and P . obtusus to venom alkaloids of native and imported Solenopsis fire ants Chemoecology (IF 2.05) Pub Date : 2020-05-19 Olufemi S. Ajayi; Li Chen; Henry Y. Fadamiro
Pseudacteon curvatus and P. obtusus are two species of parasitic phorid flies (Diptera: Phoridae), introduced in the southern USA for biological control of Solenopsis fire ants (Hymenoptera: Formicidae). The preference of both parasitoid species (P. curvatus and P. obtusus) for native Solenopsis fire ants (S. geminata complex) versus imported fire ants, S. saevissima complex (S. invicta and S. richteri)
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Intraspecific variation of cuticular hydrocarbons and apolar compounds in the venom of Ectatomma brunneum Chemoecology (IF 2.05) Pub Date : 2020-05-07 Ellen Liciane Barbosa Firmino; Angélica Mendonça; Kamylla Balbuena Michelutti; Rafaella Caroline Bernardi; Sidnei Eduardo Lima-Junior; Claudia Andrea Lima Cardoso; William Fernando Antonialli-Junior
By understanding the intraspecific differences of traits presented by a species, we can gain greater insight into their variable functionality in microevolutionary processes relative to genetic and environmental factors leading to ecological adaptation and speciation. However, few studies have evaluated how intraspecific variation of cuticle hydrocarbons (CHCs) occurs in relation to the apolar part
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Identification and evaluation of four cucurbitaceous host plant volatiles attractive to Diaphania indica (Saunders) (Lep.: Pyralidae) Chemoecology (IF 2.05) Pub Date : 2020-04-06 Amin Moghbeli Gharaei; Mahdi Ziaaddini; Brigitte Frérot; Samad Nejad Ebrahimi; M. Amin Jalali; Gadi V. P. Reddy
The cucumber moth (CM), Diaphania indica (Saunders) (Lepidoptera: Pyralidae), is a major lepidopteran pest of cucurbitaceous plants that caterpillars feed on vegetative tissue of the plants and thereby cause loss of crops. Previous work has shown that volatile organic compounds (VOCs) released by host plants attract gravid CM females for oviposition, but the compounds responsible for this attraction
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Oleic acid emitted from frozen Trogoderma spp. larvae causes conspecific behavioral aversion Chemoecology (IF 2.05) Pub Date : 2020-04-01 Michael J. Domingue; William R. Morrison; Kathleen Yeater; Scott W. Myers
Accumulating evidence in the literature suggests that oleic acid functions as a necromone across widely divergent insect taxa. The prevelance of this phenomenon has not been fully explored, and its application to pest management remains underdeveloped. Khapra beetle (KB), Trogoderma granarium, is a pest of stored grains, with larvae that can enter facultative diapause and remain cryptic in warehouses
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Phytochemical characteristics of leaves determine foraging rate of the leaf-cutting ant Atta mexicana (Smith) (Hymenoptera: Formicidae) Chemoecology (IF 2.05) Pub Date : 2020-03-20 Dennis A. Infante-Rodríguez; Juan L. Monribot-Villanueva; Klaus Mehltreter; Gloria L. Carrión; Jean-Paul Lachaud; A. Carlos Velázquez-Narváez; Víctor M. Vásquez-Reyes; Jorge E. Valenzuela-González; José A. Guerrero-Analco
Atta mexicana is a polyphagous insect that can exploit a wide range of plant species to cultivate its main food source, the symbiotic fungus Leucoagaricus gongylophorus. In the present study, we evaluated the foraging rate of A. mexicana workers among leaves of three favored and three rejected plant species under laboratory conditions. In addition, we conducted a phytochemical characterization of leaves
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Testing the effectiveness of pyrazine defences against spiders Chemoecology (IF 2.05) Pub Date : 2020-03-07 Emily R. Burdfield-Steel; Jutta M. Schneider; Johanna Mappes; Susanne Dobler
Insects live in a dangerous world and may fall prey to a wide variety of predators, encompassing multiple taxa. As a result, selection may favour defences that are effective against multiple predator types, or target-specific defences that can reduce predation risk from particular groups of predators. Given the variation in sensory systems and hunting tactics, in particular between vertebrate and invertebrate
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The effect of cyanogenic glucosides and their breakdown products on predation by domestic chicks Chemoecology (IF 2.05) Pub Date : 2020-03-06 Márcio Zikán Cardoso
Cyanogenic insects release cyanide and other breakdown products that are thought to make them unpalatable to predators. Cyanogenic lepidopterans such as Heliconius butterflies and Zygaena moths are rejected by vertebrate predators, but the role played by these compounds in predator deterrence is poorly explored. Here I report tests undertook with captive domestic chicks (Gallus gallus) to evaluate
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Leaf waxes from Lathyrus sativus : short-range attractant and stimulant for nymph laying in a viviparous insect Chemoecology (IF 2.05) Pub Date : 2020-02-29 Paroma Mitra; Swati Das; Anandamay Barik
Lathyrus sativus L. (Fabaceae) is an important pulse crop of Asia, Europe, and Africa. Infestation by the aphid, Aphis craccivora Koch (Hemiptera: Aphididae) causes stunted growth of plants and reduces seed production. Females lay nymphs on the leaves and flowers of L. sativus. Hence, it is relevant to study the importance of leaf wax compounds (long-chain alkanes and free fatty acids) from two cultivars
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The chemical ecology approach to modern and early human use of medicinal plants Chemoecology (IF 2.05) Pub Date : 2020-02-25 Ulysses Paulino Albuquerque; André Luiz Borba do Nascimento; Leonardo Silva Chaves; Ivanilda Soares Feitosa; Joelson Moreno Brito de Moura; Paulo Henrique Santos Gonçalves; Risoneide Henriques da Silva; Taline Cristina da Silva; Washington Soares Ferreira Júnior
The chemical environment, and the natural resources available in which our species has evolved has been crucial for the establishment of our medical practices. Here we present a brief review of the insights provided by chemical ecology to understand the evolution of medical practices since ancestral hominids to modern humans, as well as their implications for the search for new drugs of natural origin
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Two gustatory receptors are necessary for sensing sucrose in an egg parasitoid, Trichogramma chilonis Chemoecology (IF 2.05) Pub Date : 2020-02-11 Jianbai Liu; Han Wu; Jiequn Yi; Guren Zhang
The gustatory system plays vital roles in food selection and feeding behaviours, as well as in other life activities in insects. In the process of taste perception, the functions of gustatory receptors are extremely important for insects. Trichogramma chilonis, a species of egg parasitoid, is often used as an effective biocontrol agent for agricultural and forestry pests. The utilization of T. chilonis
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The Trichoderma viride F-00612 consortium tolerates 2-amino-3 H -phenoxazin-3-one and degrades nitrated benzo[ d ]oxazol-2(3 H )-one Chemoecology (IF 2.05) Pub Date : 2020-01-24 Nataliya Voloshchuk; Vadim Schütz; Laura Laschke; Andrii P. Gryganskyi; Margot Schulz
Numerous allelopathic plant secondary metabolites impact plant–microorganism interactions by injuring plant-associated beneficial bacteria and fungi. Fungi belonging to the genus Trichoderma positively influence crops, including benzoxazinone-containing maize. However, benzoxazinones and their downstream metabolites such as benzoxazolinone and phenoxazinones are often fungitoxic. Specimen Trichoderma
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High photosynthetic capacity and energy-use efficiency benefit both growth and chemical defense in invasive plants Chemoecology (IF 2.05) Pub Date : 2020-01-20 Guangyan Ni; Ping Zhao; Youhua Ye; Liwei Zhu; Yuping Hou; Qiaoqiao Huang; Wei Wu; Lei Ouyang
In nature some successful invasive plants grow faster and are better chemical defenders than native plants, which appears to contradict the conventional theory that plant growth and chemical defense are trade-offs in terms of the allocation of limited resources. Using greenhouse experiments we compared the growth, chemical defensive matters (condensed tannins and total phenolics) and energy-use strategies
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Pygidial gland secretions of Carabus Linnaeus, 1758 (Coleoptera: Carabidae): chemicals released by three species Chemoecology (IF 2.05) Pub Date : 2020-01-08 Nikola Vesović; Srećko Ćurčić; Marina Todosijević; Marija Nenadić; Wang Zhang; Ljubodrag Vujisić
It is a commonly known fact that all ground beetles possess abdominal pygidial glands with relatively similar gross structure and function among species. Still, morphology of the glands and composition of their secretions have not been studied in most ground beetle species. These exocrine glands and their products are mainly associated with defence in natural environments. In this paper, we studied
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A preliminary survey of nickel, manganese and zinc (hyper)accumulation in the flora of Papua New Guinea from herbarium X-ray fluorescence scanning Chemoecology (IF 2.05) Pub Date : 2020-01-03 Christina Do; Farida Abubakari; Amelia Corzo Remigio; Gillian K. Brown; Lachlan W. Casey; Valérie Burtet-Sarramegna; Vidiro Gei; Peter D. Erskine; Antony van der Ent
The flora of Papua New Guinea is amongst the richest in the world with an estimated 25,000 plant species. The extreme levels of biodiversity, climatic ranges and soil types suggest a high possibility of metal hyperaccumulator plants existing in Papua New Guinea. However, no hyperaccumulator plants have been reported from this region yet. The use of handheld X-ray fluorescence instruments is a non-destructive
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Phenolic acids released to soil during cereal rye cover crop decomposition Chemoecology (IF 2.05) Pub Date : 2020-01-03 Briana A. Otte; Clifford P. Rice; Brian W. Davis; Harry H. Schomberg; Steven B. Mirsky; Katherine L. Tully
Cereal rye (Secale cereale) cover crops supply many agroecosystem services in cropping systems including the provision of allelochemicals for weed suppression. Understanding the distinction between root and shoot relative contributions of these allelochemicals (such as phenolic acids) should provide better insight for residue management following termination of a cereal rye cover crop. A field experiment
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Does the orchid Luisia teres attract its male chafer pollinators (Scarabaeidae: Protaetia pryeri pryeri ) by sexual deception? Chemoecology (IF 2.05) Pub Date : 2020-01-01 Sadao Wakamura; Norio Arakaki; Daisuke Moriyama; Shoko Kanayama; Masahiro Oike; Anna Kimura; Saki Wajima; Hiroshi Ono; Hiroe Yasui
The epiphytic orchid Luisia teres (Asparagales: Orchidaceae) releases floral scent that attracts males of the cupreous polished chafer Protaetia pryeri pryeri (Coleoptera: Scarabaeidae) for pollination. We analyzed this floral scent to identify the attractant(s). When various flower parts were extracted with diethyl ether and assayed, male chafers were attracted to the extract of petals but not to
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Chemotaxonomic study of the most abundant Egyptian sea-cucumbers using ultra-performance liquid chromatography (UPLC) coupled to high-resolution mass spectrometry (HRMS) Chemoecology (IF 2.05) Pub Date : 2019-12-23 Nahla E. Omran; Hoda K. Salem; Samia H. Eissa; Amal M. Kabbash; Manar A. Kandeil; Mohamed A. Salem
Actinopyga mauritiana, Bohadschia marmorata, Holothuria leucospilota, H. edulis, H. atra and H. polii are the abundant sea-cucumbers inhabiting either Red or Mediterranean Sea shore in Egypt. The aim of this study was to elucidate the metabolic content in the tegument of the selected sea-cucumbers using ultra-performance liquid chromatography coupled to high-resolution mass spectrometry (UPLC/HRMS)
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Phytotoxicity of Cortaderia speciosa extract, active principles, degradation in soil and effectiveness in field tests Chemoecology (IF 2.05) Pub Date : 2019-12-21 Margarita M. del M. Bravetti; María C. Carpinella; Sara M. Palacios
Allelopathic plant extracts have been proposed as natural herbicides, and as an alternative to synthetic herbicides. However, further studies are still required on the active principles of these extracts as well as on their soil dynamics and weed control effects in the field. We carried out the bioguided isolation of active compounds of EtOH extract of the ornamental plant, Cortaderia speciosa, with
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Identification and field verification of aggregation-sex pheromone from the predaceous bug, Arma chinensis Chemoecology (IF 2.05) Pub Date : 2019-11-27 Huihui Wu; Thomas A. Coudron; Lisheng Zhang; Jeffrey R. Aldrich; Weihong Xu; Jingyang Xu; Haifeng Wang; Deyu Zou
Arma chinensis is a predaceous insect species that can effectively suppress a wide range of agricultural and forest insect pests in the orders Lepidoptera, Coleoptera, Hymenoptera and Hemiptera in Northeast Asia. Adult A. chinensis males produce an aggregation-sex pheromone from dorsal abdominal glands and artificial aggregation-sex pheromone can attract adults of both sexes. The aggregation-sex pheromone
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Geographically separated orange and blue populations of the Amazonian poison frog Adelphobates galactonotus (Anura, Dendrobatidae) do not differ in alkaloid composition or palatability Chemoecology (IF 2.05) Pub Date : 2019-11-16 Adriana M. Jeckel; Sophie Kocheff; Ralph A. Saporito; Taran Grant
As is typical of chemically defended animals, poison frogs present high variability in their alkaloid-based defenses. Previous studies have shown that geographically separated color morphs of Oophaga and Dendrobates species differ in both alkaloid composition and arthropod palatability. Here, we tested the generality of that finding by studying the alkaloid composition and palatability of geographically
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Flowers of European pear release common and uncommon volatiles that can be detected by honey bee pollinators Chemoecology (IF 2.05) Pub Date : 2019-11-02 Kathrin Lukas; Tim Harig; Stefan Schulz; Johannes Hadersdorfer; Stefan Dötterl
Floral scents are important pollinator attractants, but there is limited knowledge about the importance of single components in plant–pollinator interactions. This especially is true in crop pollination systems. The aim of this study is to identify floral volatiles of several European pear cultivars (Pyrus communis L.), and to determine their potential in eliciting physiological responses in antennae
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Metabolome and ionome analyses reveal the stoichiometric effects of contrasting geological phosphorus soils on seed-parasitic insects in subtropical oak forests Chemoecology (IF 2.05) Pub Date : 2019-10-31 Huawei Ji; Baoming Du; Jiahao Wen; Ningxiao Sun; Mingjun Peng; Hongmei Du; Chunjiang Liu
Phosphorus (P)-rich sites develop on phosphate-rock ores, while the soils are generally characterized with P deficiency in subtropical areas, resulting in contrasting nutrient environments for plants and herbivores. It remains unclear how in situ herbivorous insects cope with such two extreme nutrient habitats in terms of metabolome and ionome. Here, we investigated the metabolome and ionome of the
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The scent gland chemistry of neogoveid cyphophthalmids (Opiliones): an unusual methyljuglone from Metasiro savannahensis. Chemoecology (IF 2.05) Pub Date : 2019-09-26 Günther Raspotnig,Felix Anderl,Ronald M Clouse
While the chemistries of scent gland secretions from a few selected species of three families of Cyphophthalmi, namely Sironidae, Pettalidae, and Stylocellidae, have already been reported and found to consist of complex blends of naphthoquinones and methyl ketones, nothing is known about the other families. We here report on the secretions of Metasiro savannahensis Clouse and Wheeler (Zootaxa 3814:177–201
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Functional characterization of two novel peptides and their analogs identified from the skin secretion of Indosylvirana aurantiaca , an endemic frog species of Western Ghats, India Chemoecology (IF 2.05) Pub Date : 2019-08-19 G. Shyla; T. V. Vineethkumar; V. Arun; M. P. Divya; Sabu Thomas; Sanil George
Two new antimicrobial peptides belonging to brevinin 1 (B1) and brevinin 2 (B2) families were identified from the skin secretion of Indosylvirana aurantiaca, an endemic frog of Western Ghats, India, through shotgun cloning. Antibacterial, antibiofilm and cytotoxic effects of these peptides were evaluated and compared with their C-terminally amidated forms. Both the amidated peptides (B1-NH2 and B2-NH2)
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3-Methyl-1-(methylthio)-2-butene: a component in the foul-smelling defensive secretion of two Ceroglossus species (Coleoptera: Carabidae) Chemoecology (IF 2.05) Pub Date : 2019-07-11 Sihang Xu; Ramu Errabeli; Kipling Will; Elizabeth Arias; Athula B. Attygalle
A sulfur-containing compound causes the foul smell of the defensive pygidial gland fluid of Ceroglossus buqueti Laporte and Ceroglossus magellanicus Gehin. This compound was identified as 3-methyl-1-(methylthio)-2-butene by a comparison of its mass spectrum, and chromatographic properties with those of a chemically synthesized standard. Although a few sulfur compounds are known from insect secretions
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A beetle biocontrol agent of rice-field weeds recognizes its host plants by surface wax long-chain alkanes and free fatty acids Chemoecology (IF 2.05) Pub Date : 2019-05-30 Swati Das; Anamika Koner; Anandamay Barik
The importance of long-chain alkanes and free fatty acids present in leaf surface waxes of two Commelinaceae rice-field weeds, Commelina benghalensis L. and Murdannia nudiflora (L.) Brenan, was evaluated as short-range attractant and oviposition stimulant in the Lema praeusta (Fab.) (Coleoptera: Chrysomelidae). Surface waxes were extracted by dipping leaves in n-hexane for 1 min at 27 ± 1 °C. Thin-layer
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Ammonia as a puddling site-marshaling substance for Japanese Papilio butterflies Chemoecology (IF 2.05) Pub Date : 2019-05-30 Takashi A. Inoue; Fumiko Yukuhiro; Tamako Hata; Shin-ichi Yamagami; Fumio Yokohari
Butterflies, especially the males, often come to dumping grounds to sip water. This behavior is called “puddling”. The aim of the present study was to identify the key substances marshaling eight species of Japanese Papilio butterfly to their puddling sites. We conducted behavioral field experiments and found that ammonia is one of these marshaling compounds. We examined the olfactory sensilla on the
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Sequestration of the plant secondary metabolite, colchicine, by the noctuid moth Polytela gloriosae (Fab.) Chemoecology (IF 2.05) Pub Date : 2019-05-29 T. P. Sajitha; R. Siva; B. L. Manjunatha; P. Rajani; Gogna Navdeep; Dorai Kavita; G. Ravikanth; R. Uma Shaanker
Colchicine, a well-known alkaloid, is a potent inhibitor of polymerization of tubulin leading to mitotic arrest. It is highly toxic to eukaryotic cells but also widely used in the field of medicine and plant breeding. Gloriosa superba (family: Colchicaceae) is an important natural source of colchicine. The seeds, tubers and leaves of this plant contain about 0.8, 1.2 and 0.014% colchicine by dry weight
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Habitats shape the cuticular chemical profiles of stingless bees Chemoecology (IF 2.05) Pub Date : 2019-05-27 Wiebke Kämper; Benjamin F. Kaluza; Helen Wallace; Thomas Schmitt; Sara D. Leonhardt
Stingless bees are highly social pollinators in tropical ecosystems. Besides floral pollen and nectar, they collect substantial amounts of plant resins, which are used for nest construction/maintenance and defence against antagonists. Moreover, some stingless bees extract chemical compounds from resins and incorporate them in their cuticular chemical profiles, rendering this trait directly dependent
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The aggregation-sex pheromones of the cerambycid beetles Anaglyptus mysticus and Xylotrechus antilope ssp. antilope : new model species for insect conservation through pheromone-based monitoring Chemoecology (IF 2.05) Pub Date : 2019-04-09 Mikael A. Molander; Björn Eriksson; Inis B. Winde; Yunfan Zou; Jocelyn G. Millar; Mattias C. Larsson
We studied the pheromone chemistry of the cerambycids Anaglyptus mysticus and Xylotrechus antilope ssp. antilope with the goal of identifying attractants that could be used as tools for pheromone-based monitoring of these two species, which are rare and red-listed in parts of northern Europe. Beetles were reared from naturally colonized branches of hazel (Corylus avellana) or oak (Quercus robur), respectively
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Identification of sesquisabinene B in carrot ( Daucus carota L.) leaves as a compound electrophysiologically active to the carrot psyllid ( Trioza apicalis Förster) Chemoecology (IF 2.05) Pub Date : 2019-03-14 Rizan Rahmani; Fredrik Andersson; Martin N. Andersson; Jothi Kumar Yuvaraj; Olle Anderbrant; Erik Hedenström
The Carrot psyllid, Trioza apicalis Förster (Homoptera: Psylloidea: Triozidae) is one of the major insect pests of carrots (Daucus carota L.) in parts of northern and central Europe. Gas chromatography–single-sensillum recording (GC–SSR) previously confirmed several active compounds in a carrot leaf extract, but the most active compound remained unidentified. Mass fragmentation patterns observed from
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Caterpillar-induced plant volatiles attract conspecific and heterospecific adults for oviposition within a community of lepidopteran stemborers on maize plant Chemoecology (IF 2.05) Pub Date : 2019-03-07 Bonoukpoè Mawuko Sokame; Eric Siaw Ntiri; Peter Ahuya; Baldwyn Torto; Bruno Pierre Le Ru; Dora Chao Kilalo; Gerald Juma; Paul-André Calatayud
Olfactory cues may influence host plant preferences for oviposition of female moths within a community of stemborers that utilise the same resource. This study aimed to evaluate plant preferences for oviposition of gravid females of noctuid stemborers, Busseola fusca and Sesamia calamistis, and the crambid Chilo partellus for uninfested maize plants and plants infested by conspecific or heterospecific
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Behavioural responses of bean flower thrips ( Megalurothrips sjostedti ) to vegetative and floral volatiles from different cowpea cultivars Chemoecology (IF 2.05) Pub Date : 2019-02-28 Seydou Diabate; Emilie Deletre; Lucy Kananu Murungi; Komi K. M. Fiaboe; Sevgan Subramanian; John Wesonga; Thibaud Martin
Bean flower thrips (Megalurothrips sjostedti) is a key pest of cowpea (Vigna unguicalata) in Africa. To better understand the interaction of M. sjostedti to cowpea cultivars to improve management efforts, we investigated the repellent properties of volatiles of four cowpea cultivars, namely Ex-Luanda, Machakos, Ken Kunde 1 and Katumani 80 at different phenological stages. Bioassays were conducted to
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Identification of aqueous extracts from Artemisia ordosica and their allelopathic effects on desert soil algae Chemoecology (IF 2.05) Pub Date : 2019-01-02 Xiangjun Zhou; Yurui Zhang; Xiaoliang An; Roberto De Philippis; Xinyue Ma; Chaoran Ye; Lanzhou Chen
Desert vascular plants coexist extensively with biological soil crusts (BSCs) in arid lands, but limited information is known about the impacts of shrub litterfall on soil microalgae. In this study, the components of aqueous extracts (AEs) from Artemisia ordosica leaves were identified, and the growth and physiological responses of two BSC-dominated algae, namely, Chlorella vulgaris and Nostoc sp.
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