Abstract：
:Bacillus subtilis strains are known to produce a vast array of antimicrobial compounds. However, some compounds remain to be identified. Disk assays performed in vitro with Bacillus subtilis CU12 showed a significant reduction in mycelial growth of Alternaria solani, Botrytis cinerea, Fusarium sambucinum, and Pythium sulcatum. Crude B. subtilis culture filtrates were subsequently extracted with ethyl acetate and butanol. A bioassay guided purification procedure revealed the presence of one major antifungal compound in the butanol extract. Purification of the compound was performed using a reverse-phase C18 solid phase extraction (SPE) cartridge and flash column chromatography. NMR data showed that the main antimicrobial compound was a cyclic dimer of 3-hydroxypropionaldehyde (HPA). This study demonstrated the antimicrobial activity of B. subtilis strain CU12 against phytopathogenic microorganisms is mediated at least in part by the production of HPA. It also suggests that this B. subtilis strain could be effective at controlling pathogens through protection of its ecological niche by antibiosis.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Wise C,Novitsky L,Tsopmo A,Avis TJdoi
10.1007/s10886-012-0219-2subject
Has Abstractpub_date
2012-12-01 00:00:00pages
1521-7issue
12eissn
0098-0331issn
1573-1561journal_volume
38pub_type
杂志文章abstract：:Beetles share with other eukaryotes an innate immune system that mediates endogenous defense against pathogens. In addition, larvae of some taxa produce fluid exocrine secretions that contain antimicrobial compounds. In this paper, we provide evidence that larvae of the brassy willow leaf beetle Phratora vitellinae co...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9416-9
更新日期：2008-02-01 00:00:00
abstract：:The concentration of leaf mono- and sesquiterpenes is greater in nitrate-limited than in nitrate-richHeterotheca subaxillaris plants and is highest in young leaves and declines with leaf age. To determine whether rates of volatile terpene synthesis and/or loss vary with nitrate availability and leaf age, incorporation...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01012385
更新日期：1989-05-01 00:00:00
abstract：:Analysis of ovipositor extracts of lab-reared (> 120 generations) and wildHeliothis zea indicated small but significant differences in the percent composition of the four aldehyde components of the sex pheromone. (Z)-11-hexadecen-1-ol (Z11-16∶OH) was present in both populations and amounted to only 2.8% of the total p...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01014828
更新日期：1989-04-01 00:00:00
abstract：:Anal (proctodeal) glands of maleMicrotus agrestis housed in social isolation undergo severe atrophy. Their weight and volume is significantly lower than those of the stock control males. The atrophied glands can be revived by subjecting deprived voles to various social odors. Atrophied glands of isolated males do not ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01020312
更新日期：1986-12-01 00:00:00
abstract：:Hard clams, Mercenaria mercenaria, are sessile, filter-feeding organisms that are heavily preyed upon by blue crabs, which find their clam prey using chemical cues. Clams may evade blue crabs by reducing their pumping (feeding) behavior when a threat is perceived. The purpose of this study was to determine the type of...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-005-9021-8
更新日期：2006-03-01 00:00:00
abstract：:Fertilizer effects on terpene production have been noted in numerous reports. In contrast, only a few studies have studied the response of leaf terpene content to naturally different soil fertility levels. Terpene content, as determined by gas chromatography/mass spectrometry/flame ionization detector, and growth of P...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9515-2
更新日期：2008-09-01 00:00:00
abstract：:Pheromone communication systems have a reliable signal with a restricted window of amounts and ratios released and perceived. We propose a model based on a Gaussian response profile that allows a quantification of the response peak (location of optimum) and a measure of the peak width (response window). Interpreting t...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1010377528683
更新日期：2001-07-01 00:00:00
abstract：:The outcome of plant-mediated interactions among herbivores from several feeding guilds has been studied intensively. However, our understanding on the effects of nematode root herbivory on leaf miner oviposition behavior and performance remain limited. In this study, we evaluated whether Meloidogyne incognita root he...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0810-z
更新日期：2017-02-01 00:00:00
abstract：:Insects use a wide range of structurally diverse pheromones for intra-specific communication. Compounds in the class of terpenes are emitted as sex, aggregation, alarm, or trail pheromones. Despite the common occurrence of terpene pheromones in different insect lineages, their origin from dietary host plant precursors...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-018-1019-0
更新日期：2019-02-01 00:00:00
abstract：:Caenorhabditis elegans, a bacterivorous nematode, lives in complex rotting fruit, soil, and compost environments, and chemical interactions are required for mating, monitoring population density, recognition of food, avoidance of pathogenic microbes, and other essential ecological functions. Despite being one of the b...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-009-9670-0
更新日期：2009-08-01 00:00:00
abstract：:Four species of Acridoidea were fed on wheat leaves with and without the condensed tannin, quebracho. In no case was it deleterious to survival and growth at levels below about 10% dry weight on the food. Similarly, consumption, digestibility, and utilization of food were unaffected at up to 10% dry weight. At higher ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00995747
更新日期：1981-03-01 00:00:00
abstract：:Tannins, a diverse group of water-soluble phenolics with high affinity to proteins, are widely distributed in various parts of plants, and have negative effects in herbivores after ingestion. Some mammalian species are thought to counteract tannins by secreting tannin-binding salivary proteins (TBSPs). Several types o...
journal_title：Journal of chemical ecology
pub_type： 杂志文章,评审
doi：10.1007/s10886-006-9077-0
更新日期：2006-06-01 00:00:00
abstract：:The synthesis of the major component of the sex pheromone of the processionary mothThaumetopoea pityocampa is described. The synthesis uses the carbocupration of acetylene, followed by the coupling with the appropriate 1-iodoalkyne. This synthetic pheromone was shown to be of 98.8%Z purity. ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988039
更新日期：1983-02-01 00:00:00
abstract：:In field tests synthetic (3E,5Z)-3,5-tetradecadienyl acetate was found to attract large numbers of males ofRecurvaria leucatella Clerck into sticky traps. The other geometrical isomers did not influence catches. Of the corresponding monoenic compounds, (3E)-3-tetradecenyl acetate was highly attractive to a close relat...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00980065
更新日期：1992-07-01 00:00:00
abstract：:Defensive toxins are widespread in nature, yet we know little about how various environmental factors shape the evolution of chemical defense, especially in vertebrates. In this study we investigated the natural variation in the amount and composition of bufadienolide toxins, and the relative importance of ecological ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0690-2
更新日期：2016-04-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00990412
更新日期：1983-05-01 00:00:00
abstract：:Many grass species are symbiotic with systemic, vertically-transmitted, asymptomatic Epichloë endophytic fungi. These fungi often produce alkaloids that defend the host against herbivores. We studied how environmental variables affect alkaloids in endophyte-infected tall fescue (Schedonorus phoenix) from three Norther...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0667-1
更新日期：2016-02-01 00:00:00
abstract：:Attraction of (2E,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one [1; (6R,10R)-matsuone] and its antipode [2; (6S,10S)-matsuone] toMatsucoccus thunbergianae males was studied in the laboratory and in the field. They showed stronger response to1. In laboratory bioassays, the threshold concentrations for male att...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033196
更新日期：1994-09-01 00:00:00
abstract：:The attractiveness to male navel orangeworm moth, Amyelois transitella, of various combinations of a four-component pheromone blend was measured in wind-tunnel bioassays. Upwind flight along the pheromone plume and landing on the odor source required the simultaneous presence of two components, (11Z,13Z)-hexadecadiena...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-010-9799-x
更新日期：2010-06-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
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更新日期：2010-03-01 00:00:00
abstract：:Sex attractant pheromones are highly sensitive and selective tools for detecting and monitoring populations of insects, yet there has been only one reported case of pheromones being used to monitor protected species. Here, we report the identification and synthesis of the sex pheromone of a protected European moth spe...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
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更新日期：2010-09-01 00:00:00
abstract：:The antifungal activity of essential oil (EO) from the Brazilian epazote (Chenopodium ambrosioides L.) was evaluated by the poison food assay at concentrations of 0.3%, 0.1%, and 0.05% with eight postharvest deteriorating fungi (Aspergillus flavus, Aspergillus glaucus, Aspergillus niger, Aspergillus ochraceous, Collet...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9526-z
更新日期：2008-09-01 00:00:00
abstract：:The sex pheromone of the obscure mealybug, Pseudococcus viburni, consists of (1R*,2R*,3S*)-(2,3,4,4-tetramethylcyclopentyl)methyl acetate, the first example of a new monoterpenoid structural motif in which the two isoprene units forming the carbon skeleton are joined by 2'-2 and 3'-4 connections rather than the usual ...
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pub_type： 杂志文章
doi：10.1007/s10886-005-9320-0
更新日期：2005-12-01 00:00:00
abstract：:We examined the olfactory communication of the Neotropical short-tailed singing mouse, Scotinomys teguina, by investigating whether S. teguina responded to odors produced by the mid-ventral sebaceous gland of conspecifics. Females spent significantly more time investigating male odor than an odorless stimulus or a fem...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9428-0
更新日期：2008-04-01 00:00:00
abstract：:Mammalian scent marking is often associated with territorial defense. However, males and females may demonstrate different activity patterns and play different roles. Female mammals nurture the young during lactation, while males purportedly perform other tasks more frequently, such as territorial maintenance and defe...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
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更新日期：2006-06-01 00:00:00
abstract：:Larvae ofDanaus plexippus feed almost exclusively on milkweed species of the genusAsclepias, whose characteristic secondary metabolites are cardiac glycosides (CGs). Aposematic last-instar larvae were fed with ouabain and other cardiac glycosides of differing polarities. Time course experiments show that ouabain is se...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033701
更新日期：1995-05-01 00:00:00
abstract：:Most snakes and lizards produce eggs with flexible shells that interact with the environment to maintain water balance. Geckos produce rigid eggshells that are independent of an external source of water and can be oviposited in more open, dryer locations. In this study, we analyzed and compared the amino acid composit...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
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更新日期：2005-10-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00990748
更新日期：1983-10-01 00:00:00
abstract：:The effect of cacalol and extracts (water and petroleum ether) derived from the roots ofPsacalium decompositum (Asteraceae) on the germination and radicle growth of two plants.Amaranthus hypochondriacus (Amaranthaceae) andEchinochloa crusgalli (Poaceae), and on the radial growth of four phytopathogenic fungi is descri...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033643
更新日期：1996-03-01 00:00:00
abstract：:By emitting scent resembling that of organic material suitable for oviposition and/or consumption by flies, sapromyophilous flowers use these flies as pollinators. To date, intensive scent analyses of such flowers have been restricted to Apocynaceae, Annonaceae, and Araceae. Recent studies have suggested that the wide...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-015-0563-0
更新日期：2015-03-01 00:00:00
