Chemoecology最新文献

{"title":"Leaf waxes from Lathyrus sativus: short-range attractant and stimulant for nymph laying in a viviparous insect","authors":"Paroma Mitra,&nbsp;Swati Das,&nbsp;Anandamay Barik","doi":"10.1007/s00049-020-00303-7","DOIUrl":"https://doi.org/10.1007/s00049-020-00303-7","url":null,"abstract":"<p><i>Lathyrus sativus</i> L. (Fabaceae) is an important pulse crop of Asia, Europe, and Africa. Infestation by the aphid, <i>Aphis craccivora</i> Koch (Hemiptera: Aphididae) causes stunted growth of plants and reduces seed production. Females lay nymphs on the leaves and flowers of <i>L. sativus</i>. Hence, it is relevant to study the importance of leaf wax compounds (long-chain alkanes and free fatty acids) from two cultivars [BIO L 212 Ratan (BIO) and Nirmal B-1 (NIR)] of <i>L. sativus</i> as short-range attractant and stimulant for nymph laying in the aphid. The TLC, GC-MS and GC-FID analyses of <i>n</i>-hexane extracts from leaves of two cultivars revealed 18 <i>n</i>-alkanes from <i>n</i>-C₁₅ to <i>n</i>-C₃₆ and 14 free fatty acids from C12:0 to C22:0. Pentadecane was predominant among <i>n</i>-alkanes in both cultivars. Palmitoleic acid and pentadecanoic acid were predominant free fatty acids in leaf waxes of BIO and NIR, respectively. Females were attracted towards leaf waxes of both cultivars compared to the control solvent (<i>n</i>-hexane) in Y-tube olfactometer bioassays. A synthetic blend of either pentadecane, tridecanoic acid, and linoleic acid at similar amounts present in one leaf equivalent wax of BIO, or pentadecane, docosane, pentacosane, heptacosane, tritriacontane, and linoleic acid at similar amounts present in one leaf equivalent wax of NIR acted as short-range attractant and stimulated females to lay nymphs. But, the latter blend was more attractive and stimulated females to lay more nymphs than the former blend, and hence, this latter blend could be employed in the development of baited traps in pest management strategies.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 3","pages":"117 - 129"},"PeriodicalIF":1.8,"publicationDate":"2020-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00303-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5112479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The chemical ecology approach to modern and early human use of medicinal plants","authors":"Ulysses Paulino Albuquerque,&nbsp;André Luiz Borba do Nascimento,&nbsp;Leonardo Silva Chaves,&nbsp;Ivanilda Soares Feitosa,&nbsp;Joelson Moreno Brito de Moura,&nbsp;Paulo Henrique Santos Gonçalves,&nbsp;Risoneide Henriques da Silva,&nbsp;Taline Cristina da Silva,&nbsp;Washington Soares Ferreira Júnior","doi":"10.1007/s00049-020-00302-8","DOIUrl":"https://doi.org/10.1007/s00049-020-00302-8","url":null,"abstract":"<p>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. Like for any other mammal, ecological and evolutionary processes have shaped how we relate to plant and animal chemicals, whether to avoid, transform and/or explore these compounds according to our needs. In addition, culture has played a key role in the way these chemicals are perceived by people and how they can be processed by different modes of use for ingestion, as well as providing cultural significance for their use (in medicine, for example) or their rejection altogether.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 3","pages":"89 - 102"},"PeriodicalIF":1.8,"publicationDate":"2020-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00302-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4964305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two gustatory receptors are necessary for sensing sucrose in an egg parasitoid, Trichogramma chilonis","authors":"Jianbai Liu,&nbsp;Han Wu,&nbsp;Jiequn Yi,&nbsp;Guren Zhang","doi":"10.1007/s00049-020-00301-9","DOIUrl":"https://doi.org/10.1007/s00049-020-00301-9","url":null,"abstract":"<p>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. <i>Trichogramma chilonis</i>, a species of egg parasitoid, is often used as an effective biocontrol agent for agricultural and forestry pests. The utilization of <i>T. chilonis</i> has been well established, but the gustatory receptors, constituting the key factor in the molecular mechanism of gustation, are still unknown. In this study, we obtained two full-length cDNAs encoding putative sugar receptors (<i>TchiGR64f1</i> and <i>TchiGR64f2</i>), and the qRT-PCR results showed that <i>TchiGR64f1</i> and <i>TchiGR64f2</i> were expressed from the larval to adult stages. The expression of <i>TchiGR64f1</i> and <i>TchiGR64f2</i> differed between male and female adults. Functional analysis of TchiGR64f1 and TchiGR64f2 was conducted based on the <i>Xenopus</i> oocyte expression system and the two-electrode voltage-clamp system. The electrophysiological results showed that the combination of TchiGR64f1?+?TchiGR64f2 was exclusively tuned to sucrose. Then, <i>T. chilonis</i> adults showed a preference for sucrose in a behavioural experiment. Additionally, sucrose consumption prolonged the lifespan and improved the fecundity of <i>T. chilonis</i>. These results not only enrich the reservoir of information on gustatory receptors in <i>T. chilonis</i> but also provide basic knowledge for further research on taste reception and for the development of a better strategy for the application of <i>T. chilonis</i> in biocontrol.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 3","pages":"103 - 115"},"PeriodicalIF":1.8,"publicationDate":"2020-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00301-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4752949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Trichoderma viride F-00612 consortium tolerates 2-amino-3H-phenoxazin-3-one and degrades nitrated benzo[d]oxazol-2(3H)-one","authors":"Nataliya Voloshchuk,&nbsp;Vadim Schütz,&nbsp;Laura Laschke,&nbsp;Andrii P. Gryganskyi,&nbsp;Margot Schulz","doi":"10.1007/s00049-020-00300-w","DOIUrl":"https://doi.org/10.1007/s00049-020-00300-w","url":null,"abstract":"<p>Numerous allelopathic plant secondary metabolites impact plant–microorganism interactions by injuring plant-associated beneficial bacteria and fungi. Fungi belonging to the genus <i>Trichoderma</i> positively influence crops, including benzoxazinone-containing maize. However, benzoxazinones and their downstream metabolites such as benzoxazolinone and phenoxazinones are often fungitoxic. Specimen <i>Trichoderma viride</i> F-00612 was found to be insensitive to 100-μM phenoxazinone and 500-μM benzoxazolinone. Screening of 46 additional specimens of ascomycetes revealed insensitivity to phenoxazinones among fungi that cause disease in benzoxazinone-producing cereal crops, whereas many other ascomycetes were highly sensitive. In contrast, most of the screened fungi were insensitive to benzoxazolinone. <i>T. viride</i> F-00612 was associated with bacteria and, thus, existed as a consortium. By contrast, <i>Enterobacter</i> species and <i>Acinetobacter calcoaceticus</i> were prominent in the original specimen, and <i>Bacillus</i> species predominated after antibiotic application. Prolonged cultivation of <i>T. viride</i> F-00612 in liquid medium and on Czapek agar in the presence of?&lt;?100?μM phenoxazinone and?&lt;?500?μM benzoxazolinone resulted in a massive loss of bacteria accompanied by impacted fungal growth in the presence of phenoxazinone. The original consortium was actively involved in implementing metabolic sequences for the degradation and detoxification of nitrated benzoxazolinone derivatives. The 2-aminophenol was rapidly converted into acetamidophenol, but benzoxazolinone, methoxylated benzoxazolinone, and picolinic acid remained unchanged. Excluding phenoxazinone, none of the tested compounds markedly impaired fungal growth in liquid culture. In conclusion, members of the <i>T. viride</i> F-00612 consortium may contribute to the ability to manage benzoxazinone downstream products and facilitate BOA-6-OH degradation via nitration.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 2","pages":"79 - 88"},"PeriodicalIF":1.8,"publicationDate":"2020-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00300-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4934316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High photosynthetic capacity and energy-use efficiency benefit both growth and chemical defense in invasive plants","authors":"Guangyan Ni,&nbsp;Ping Zhao,&nbsp;Youhua Ye,&nbsp;Liwei Zhu,&nbsp;Yuping Hou,&nbsp;Qiaoqiao Huang,&nbsp;Wei Wu,&nbsp;Lei Ouyang","doi":"10.1007/s00049-020-00299-0","DOIUrl":"https://doi.org/10.1007/s00049-020-00299-0","url":null,"abstract":"<p>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 (construction cost and energy-use efficiency) of four highly noxious invasive plants to their congeneric or co-occurring native species in subtropical China. We hypothesized that the trade-offs between growth and chemical defense in invasive plants are alleviated, and this alleviation benefits from their high photosynthetic capacities and energy-use strategies. Our results showed that all the four invasive plants grew faster than their native counterparts, and three of them had higher condensed tannins and the remaining one had higher total phenolics, indicating the invasive plants achieved both faster growth and stronger chemical defense. Moreover, the growth rate positively related to condensed tannins but negatively to total phenolics in both invasive and native plants, indicating the chemical-specific pattern of the trade-offs. Our results demonstrate that the higher photosynthetic capacity and energy-use efficiency together with lower biomass construction cost facilitated the faster growth and stronger chemical defense in invasive plants, providing an insight for their chemical-specific trade-offs between growth and chemical defense.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 2","pages":"69 - 78"},"PeriodicalIF":1.8,"publicationDate":"2020-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-020-00299-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4789768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pygidial gland secretions of Carabus Linnaeus, 1758 (Coleoptera: Carabidae): chemicals released by three species","authors":"Nikola Vesović,&nbsp;Srećko Ćurčić,&nbsp;Marina Todosijević,&nbsp;Marija Nenadić,&nbsp;Wang Zhang,&nbsp;Ljubodrag Vujisić","doi":"10.1007/s00049-019-00298-w","DOIUrl":"https://doi.org/10.1007/s00049-019-00298-w","url":null,"abstract":"<p>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 three predatory ground beetle species of the genus <i>Carabus</i> Linnaeus, 1758, namely <i>C</i>. (<i>Archicarabus</i>) <i>montivagus</i> Palliardi, 1825, <i>C</i>. (<i>Megodontus</i>) <i>caelatus</i> Fabricius, 1801, and <i>C</i>. (<i>M.</i>) <i>violaceus</i> Linnaeus, 1758, to identify chemical components of their pygidial gland secretions. Altogether, 10 carboxylic acids were isolated from the analysed secretions [two from the secretion of <i>C</i>. (<i>A</i>.) <i>montivagus</i>, 10 from that of <i>C</i>. (<i>M</i>.) <i>caelatus</i>, and nine from that of <i>C</i>. (<i>M.</i>) <i>violaceus</i>]. The finding of 2-hexenoic acid in the secretion of <i>C</i>. (<i>M</i>.) <i>caelatus</i> is the first finding of it within the entire subfamily Carabinae. In addition, we also analysed the morphology of glands of the species <i>C</i>. (<i>M.</i>) <i>violaceus.</i></p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 2","pages":"59 - 68"},"PeriodicalIF":1.8,"publicationDate":"2020-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-019-00298-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4342532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A preliminary survey of nickel, manganese and zinc (hyper)accumulation in the flora of Papua New Guinea from herbarium X-ray fluorescence scanning","authors":"Christina Do,&nbsp;Farida Abubakari,&nbsp;Amelia Corzo Remigio,&nbsp;Gillian K. Brown,&nbsp;Lachlan W. Casey,&nbsp;Valérie Burtet-Sarramegna,&nbsp;Vidiro Gei,&nbsp;Peter D. Erskine,&nbsp;Antony van der Ent","doi":"10.1007/s00049-019-00293-1","DOIUrl":"https://doi.org/10.1007/s00049-019-00293-1","url":null,"abstract":"<p>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 and effective method for the systematic quantitative assessment of hyperaccumulation in vast numbers of?herbarium specimens. X-ray fluorescence scanning was undertaken at the Queensland Herbarium (Australia) on all Papua New Guinea specimens from seven major families (Celastraceae, Cunoniaceae, Phyllanthaceae, Proteaceae, Rubiaceae, Salicaceae and Violaceae), covering 3164 plant specimens. This preliminary survey revealed the existence of ten zinc hyperaccumulator species (&gt;?3000?μg?g^?1 Zn), eight manganese accumulator species (&gt;?5000?μg?g^?1 Mn) and one nickel hyperaccumulator species (&gt;?1000?μg?g^?1 Ni). These results highlight the potential for discovery of numerous new metal hyperaccumulator plants from the flora of Papua New Guinea if larger-scale?systematic screening efforts were undertaken.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 1","pages":"1 - 13"},"PeriodicalIF":1.8,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-019-00293-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4119103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phenolic acids released to soil during cereal rye cover crop decomposition","authors":"Briana A. Otte,&nbsp;Clifford P. Rice,&nbsp;Brian W. Davis,&nbsp;Harry H. Schomberg,&nbsp;Steven B. Mirsky,&nbsp;Katherine L. Tully","doi":"10.1007/s00049-019-00295-z","DOIUrl":"https://doi.org/10.1007/s00049-019-00295-z","url":null,"abstract":"<p>Cereal rye (<i>Secale cereale</i>) 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 examining root and shoot contributions of phenolic acids to soil was conducted in 2015 at Beltsville, Maryland. Tissue and soil (0–10?cm) phenolic acid concentrations were analyzed over time using liquid chromatography–mass spectrometry. Cereal rye roots were found to be the primary contributor of phenolic acids to soil. Further, soil phenolic acid concentrations were unaffected by tillage or soil depth. Overall, the phenolic acid concentrations of coumaric?&gt;?vanillic?&gt;?4-hydroxybenzoic acid increased in soils during the first 3–7?days after cereal rye termination and then decreased to initial concentrations after 56?days. Our research forms a basis for future allelopathy research. Specifically, there is a need to understand the contribution of roots to phenolic acid release in soils. Building this body of knowledge will improve our ability to employ allelopathy as part of a multi-tactic weed management system.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 1","pages":"25 - 34"},"PeriodicalIF":1.8,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-019-00295-z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4466592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does the orchid Luisia teres attract its male chafer pollinators (Scarabaeidae: Protaetia pryeri pryeri) by sexual deception?","authors":"Sadao Wakamura,&nbsp;Norio Arakaki,&nbsp;Daisuke Moriyama,&nbsp;Shoko Kanayama,&nbsp;Masahiro Oike,&nbsp;Anna Kimura,&nbsp;Saki Wajima,&nbsp;Hiroshi Ono,&nbsp;Hiroe Yasui","doi":"10.1007/s00049-019-00297-x","DOIUrl":"https://doi.org/10.1007/s00049-019-00297-x","url":null,"abstract":"<p>The epiphytic orchid <i>Luisia teres</i> (Asparagales: Orchidaceae) releases floral scent that attracts males of the cupreous polished chafer <i>Protaetia pryeri pryeri</i> (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 that of sepals or lips. The petal extracts were chromatographed on silica gel column and the activity was found in ether and methanol fractions. Gas chromatography/mass spectrometry (GC/MS) analyses and subsequent NMR analyses revealed that both active fractions contained 2,3-dihydroxypropyl isovalerate (2,3-DHPiV) as a major compound. Natural 2,3-DHPiV showed identical retention time to that of synthetic (<i>R</i>)-enantiomer in subsequent HPLC analyses using a chiral column, while (<i>S</i>)-enantiomer was not detected. The amount of this compound was ca. 5?μg/flower. In field tests performed in Okinawa, Japan, males of <i>P. pryeri pryeri</i> were observed to fly around and land on a cotton ball impregnated with synthetic (<i>R</i>)-2,3-DHPiV, but no male was attracted to the (<i>S</i>)-enantiomer or the racemic mixture. Thus, the chemical attractant released from the flower was identified to be (<i>R</i>)-2,3-DHPiV. 2,3-DHPiV was also found in a volatile sample collected from the virgin females by GC/MS analyses using achiral column, while this compound did not occur in males. Because of the difficulty in HPLC detection of a small amount of 2,3-DHPiV, the chirality remains to be determined. Nevertheless, these results strongly suggest that the flowers of <i>L. teres</i> release the same compound as females of its pollinator <i>P. pryeri pryeri,</i> indicating that the flower of this orchid chemically mimics the female sex pheromone.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 2","pages":"49 - 57"},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-019-00297-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4025736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemotaxonomic study of the most abundant Egyptian sea-cucumbers using ultra-performance liquid chromatography (UPLC) coupled to high-resolution mass spectrometry (HRMS)","authors":"Nahla E. Omran,&nbsp;Hoda K. Salem,&nbsp;Samia H. Eissa,&nbsp;Amal M. Kabbash,&nbsp;Manar A. Kandeil,&nbsp;Mohamed A. Salem","doi":"10.1007/s00049-019-00296-y","DOIUrl":"https://doi.org/10.1007/s00049-019-00296-y","url":null,"abstract":"<p><i>Actinopyga maur</i><i>itiana</i>, <i>Bohadschia marmorata</i>, <i>Holothuria leucospilota</i>, <i>H</i>. <i>edulis</i>, <i>H. atra and H. polii</i> are the abundant sea<b>-</b>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<b>-</b>cucumbers using ultra-performance liquid chromatography coupled to high-resolution mass spectrometry (UPLC/HRMS). The identified metabolites included sulfated saponins such as holothurin B1 and 24-dehydroechinoside A and non-sulfated saponins such as bivittoside C and D. Our results showed that <i>B. marmorata</i> is substantially different from all the other species and occupies alone one taxon. Consequently, it can be suggested to reclassify the family Holothuriidae into three subfamilies. The first suggested comprising the genera, <i>Holothuria</i> and <i>Actinopyga</i>, the second includes only genus <i>Bohadschia</i>, whereas the third includes only genus <i>Pearsonothuria</i>. Lipidomic analysis of sea-cucumbers showed high variation in saturated and unsaturated fatty acids (USFAs) between the collected species. <i>H. edulis</i> and <i>B. marmorata</i> showed the highest amount of all identified SFAs. Among the USFAs, palmitoleic, docosatrienoic and linoleic acid were detected in varied amount in most species.</p>","PeriodicalId":515,"journal":{"name":"Chemoecology","volume":"30 1","pages":"35 - 48"},"PeriodicalIF":1.8,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00049-019-00296-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4887099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}