Fungal isolates involved in biodeterioration of book-paper and their effects on substrate selection by Liposcelis bostrychophila (Badonnel) (Psocoptera: Liposcelididae)

Green, Paul W. C.

doi:10.1016/j.jspr.2008.01.003

Cited by 22 publications

(14 citation statements)

References 25 publications

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“…In summary, the results of this study could have a practical application, but they help also to explain more of the chemical ecology of L. bostrychophila, building on previous work (Howard and Lord 2003;Lord and Howard 2004;Green and Turner 2005;Green 2005Green , 2008. Compounds that were not detected by GC-MS constituted between 89 (methanol fractions) and 97% (hexane extract) of the samples.…”

Section: Discussionsupporting

confidence: 57%

“…When there was a choice between two repellent extracts (i.e., 80%MeOH, 10,000 ppm), effectively two extracts with a push-effect, overall selection was not affected when compared with a control group. It is possible that the regulation of settling behavior by short-range chemical cues can be disrupted by the build-up of volatiles emitted from concentrated extracts, as suggested by Green (2008). The effect of volatile compounds on the behavior of L. bostrychophila requires clarification by further study.…”

Section: Discussionmentioning

confidence: 99%

“…Fungal hyphae produce palmitic, stearic, oleic, and linoleic acids, and the concentration of these compounds varies both over time and between species (Stahl and Klug 1996). Liposcelis bostrychophila respond to differences in fungal chemistry, selecting between extracts of different species (Green 2008), and it could be that the fatty acid composition of these extracts is responsible for this effect. The balance of repellent and attractant fatty acids in fungi might affect which species is selected as food by L. bostrychophila, as has been suggested for some species of mycophagous collembola (Nilsson and Bengtsson 2004).…”

Section: Discussionmentioning

confidence: 99%

“…The Petri-dishes were equilibrated, at 28±1°C and 76±1.5% RH, in a growth chamber (Binder KBWF 240). Bioassays were conducted as described in Green (2008), except that saturated salt (NaCl) solution and plastic bags were not required to maintain humidity. The position of insects was recorded, after 12 h, by photographing the dishes with a digital camera (Sony® Cybershot™).…”

Section: Gc-ms Analysismentioning

confidence: 99%

“…Previous experiments have shown that extracts of L. bostrychophila affect the settling behavior of conspecifics, with the deterrent effect depending on the concentration of the extract and the polarity of compounds in the extract (Green 2005). Recent work also has indicated that extracts of fungal colonies can affect the substrate chosen by L. bostrychophila (Green 2008), although the compounds responsible for this effect were not analyzed. So, L. bostrychophila can respond to chemicals in their environment.…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Insect Extracts and Some Insect-Derived Compounds on the Settling Behavior of Liposcelis bostrychophila

Green

2009

J Chem Ecol

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Extracts of whole booklice (Liposcelis bostrychophila)-sequentially extracted in hexane and aqueous 80% methanol (80%MeOH)-repel conspecifics. A methanol-soluble fraction (MFr) of the 80% methanol extract was more repellent than either its corresponding water fraction (WFr) or the hexane extract. The repellent effect of the MFr was repeatable across extracts prepared on different occasions over a 1 month period. Gas chromatography, mass-spectrometry (GC-MS) analyses showed that saturated (C(16); C(18)) monoenoic (C(16:1); C(18:1)) and a dienoic fatty acid (C(18:2)) and the corresponding methyl esters of all but C(16:1) and C(18) constituted approximately 95% and 30%, of the detected compounds in the methanol fractions and the hexane extract, respectively. Qualitative thin layer chromatography showed that cholesterol was present in methanol fractions and the hexane extract, and also enabled tentative identification of triacylglycerols and phospholipids in the methanol fractions. Extracts of wheatgerm, dried skimmed milk powder, active yeast, and wholemeal flour-L. bostrychophila dietary components-were analyzed by GC-MS, and C(16), C(18:1) and C(18:2) were detected, indicating that C(18) and the methyl esters were not directly extractable and/or that they were products of booklice metabolism. A fatty acid amide (stearamide) previously identified in cuticular extracts of L. bostrychophila was not detected, and therefore was not responsible for the observed biological activity. Pure fatty acids and fatty acid methyl esters repelled settling of L. bostrychophila at 10 mM, with the exception of palmitic and stearic acids, indicating, among other things, a difference between the efficacy of saturated and unsaturated fatty acids. The effect of concentrations <10 mM was less significant, although palmiteoleic acid appeared to be attractive to L. bostrychophila at 0.1 mM. Fatty acids and fatty acid methyl esters were at a much lower concentration than 10 mM in the repellent methanol fractions, indicating that an interaction between known and as yet unidentified compounds is likely. The significance of fatty acids in relation to the biology and behavior of L. bostrychophila and their potential for use in traps and monitoring are discussed.

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Gc-ms Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effects of Insect Extracts and Some Insect-Derived Compounds on the Settling Behavior of Liposcelis bostrychophila

Green

2009

J Chem Ecol

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Microbial Ecology of Indoor Environments: The Ecological and Applied Aspects of Microbial Contamination in Archives, Libraries and Conservation Environments

Pinzari

2011

Sick Building Syndrome

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Evaluation of light attraction for the stored-product psocid, Liposcelis bostrychophila

et al. 2015

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The psocid, Liposcelis bostrychophila Badonnel (Psocoptera: Liposcelididae), is the most widespread psocid pest of stored products. Because L. bostrychophila has developed resistance to several chemical insecticides, it is important to investigate other integrated pest management (IPM) approaches, and a critical part of IPM programs is an effective monitoring program, Monitoring tools for psocids are limited, and few studies have been conducted on monitoring of psocids, with none on the attraction of lights for psocids. Therefore, we studied the response of L. bostrychophila adults to eight wavelengths of light-emitting diodes (LED) in paired-choice pitfall test. Among the LEDs evaluated, the strongest response by L. bostrychophila adults was to 351 nm UV. When LEDs were tested against brewer's yeast (the most preferred attractant for L. bostrychophila among more than 20 potential attractants found in previous studies), the 351 nm UV wavelength was the only light that attracted more psocids than brewer's yeast. These results suggest that the use of LEDs might be useful in psocid-monitoring programs for L. bostrychophila and other psocid species. Keywords Liposcelis bostrychophila Á Psocoptera: Liposcelididae Á Stored products Á Grains Á Monitoring Á Light preferences Á Behavior Key message • Psocids are stored-product pests of increasing concern worldwide, and monitoring tools are limited. For the first time, the use of Light-Emitting Diodes (LED) for attraction of the main psocid species, Liposcelis bostrychophila, was explored. • Eight LEDs in combination with brewer's yeast (attractant highly preferred by L. bostrychophila) and/ or blank controls were tested in choice tests. • The LED emitting 351 nm UV light elicited the strongest response by L. bostrychophila adults. This response was even stronger than for brewer's yeast.

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Fungal isolates involved in biodeterioration of book-paper and their effects on substrate selection by Liposcelis bostrychophila (Badonnel) (Psocoptera: Liposcelididae)

Cited by 22 publications

References 25 publications

The Effects of Insect Extracts and Some Insect-Derived Compounds on the Settling Behavior of Liposcelis bostrychophila

The Effects of Insect Extracts and Some Insect-Derived Compounds on the Settling Behavior of Liposcelis bostrychophila

Microbial Ecology of Indoor Environments: The Ecological and Applied Aspects of Microbial Contamination in Archives, Libraries and Conservation Environments

Evaluation of light attraction for the stored-product psocid, Liposcelis bostrychophila

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