scholarly journals Correction to: Mite color alteration and acaricidal activity of 3,7-dimethyl-2,6-octadienal and its structural analogues against the stored food pest mite Tyrophagus putrescentiae

2019 ◽  
Vol 77 (4) ◽  
pp. 583-583
Author(s):  
J. E. Song ◽  
H. S. Lee
Keyword(s):  
Acaricidal Activity ◽  
Tyrophagus Putrescentiae ◽  
Structural Analogues ◽  
Color Alteration ◽  
Pest Mite

scholarly journals Acaricidal properties of 5-methylfurfural identified from Valeriana fauriei and its structural analogues against synanthropic mites and Asian longhorned tick with color alterations

2021 ◽  
Vol 64 (1) ◽  
Author(s):  
Seon-A Choi ◽  
Jun-Hwan Park ◽  
Hoi-Seon Lee ◽  
Ji-Hoon Lee
Keyword(s):  
Essential Oil ◽  
Acaricidal Activity ◽  
Haemaphysalis Longicornis ◽  
Dermatophagoides Farinae ◽  
Tyrophagus Putrescentiae ◽  
Color Changes ◽  
Structural Analogues

AbstractAcaricidal activities and color alterations of 5-methylfurfural derived from Valeriana fauriei essential oil and its structural analogues against Dermatophagoides farinae, D. pteronyssinus, Haemaphysalis longicornis and Tyrophagus putrescentiae were evaluated in the present study. Based on the LD50 values of 5-methylfurfural and its analogues, 4,5-dimethylfurfural showed the highest acaricidal activity (LD50; 9.95, 9.91, and 7.12 μg/cm2), followed by 5-methylfurfural (11.87, 11.00, and 8.59 μg/cm2), furfural (12.94, 13.25, and 10.36 μg/cm2), and V. fauriei essential oil (15.15, 13.64, and 10.14 μg/cm2) against D. farinae, D. pteronyssinus and T. putrescentiae, respectively. However, all tested compounds did not show the acaricidal activities against H. longicornis. Interestingly, the color alterations of the mites and ticks were observed by furfural, 5-methylfurfural, and 4,5-dimethylfurfural from colorless to red brown during the acaricidal experiments. Furthermore, 4,5-dimethylfurfural which exhibited the highest acaricidal activity was formulated as nanoemulsion. The nanoemulsion of 4,5-dimethylfurfural showed higher acaricidal activity than it was emulsified in ethanol. The nanoemulsion was also found to show color changes of the mites and ticks from colorless to red brown. The results suggest that 5-methylfurfural and its analogues could be developed as an effective and easy-to-recognize acaricides to mites and ticks.

scholarly journals Characteristic and Expression of Hsp70 and Hsp90 Genes from Tyrophagus Putrescentiae and Their Response to Thermal Stress

2021 ◽  
Author(s):  
Jing Wang ◽  
Sheng-quan Que ◽  
Meng-ru Jin ◽  
Xin-yu Liu ◽  
Tian-rong Xin ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Phylogenetic Analyses ◽  
Great Influence ◽  
Amino Acid Residues ◽  
Tyrophagus Putrescentiae ◽  
Reading Frame ◽  
Real Time Quantitative Pcr ◽  
Relative Expression Level ◽  
Pest Mite ◽  
Great Harm

Abstract Tyrophagus putrescentiae (T. putrescentiae) is a worldwide tored grain pest mite which has do great harm to human’s economy and health. Temperature has a great influence on the population dynamics of T. putrescentiae. In this study, the cDNA of T. putrescentiae HSP70 and HSP90 (designated TpHSP70-1, TpHSP70-2 and TpHSP90) were cloned, and their expression were determined by fluorescent real time quantitative PCR. Results indicate that TpHSP70-1, TpHSP70-2 and TpHSP90 contained an open reading frame of 1,998 bp, 1,984 bp and 2,157 bp that encoded 665, 661 and 718 amino acid residues, respectively. Sequences and phylogenetic analyses suggested that TpHSP70 and TpHSP90 showed high homology with other species. The RT-qPCR results indicated the relative expression level of TpHSP90 and TpHSP70 gene at different stages were different. Also thermal stress could increase its expression significantly. This study indicates that TpHSP70 and TpHSP90 are very important genes for T. putrescentiae to defend against thermal stress.

Food Protective and Color Alteration Effects of Acaricidal Aldehydes on Tyrophagus putrescentiae (Schrank)

2006 ◽  
Vol 69 (7) ◽  
pp. 1728-1731 ◽  
Author(s):  
B. K. SUNG ◽  
J. H. LIM ◽  
H. S. LEE
Keyword(s):  
Prunus Persica ◽  
Lethal Dose ◽  
Tyrophagus Putrescentiae ◽  
Benzyl Benzoate ◽  
Lead Compounds ◽  
Color Alteration

The activities of benzaldehyde isolated from Prunus persica seeds and of commercially available aldehydes against Tyrophagus putrescentiae (a stored-food mite) adults were examined and compared with those of the synthetic acaricides benzyl benzoate and N,N-diethyl-m-toluamide. On the basis of the 50% lethal dose (LD50), the compound most toxic to T. putrescentiae adults was salicylaldehyde (LD50 of 1.02 μg/cm2) followed by cinnamaldehyde (1.66 μg/cm2), benzaldehyde (4.23 μg/cm2), phthaldialdehyde (5.16 μg/cm2), benzyl benzoate (9.75 μg/cm2), and N,N-diethyl-m-toluamide (16.26 μg/cm2). Benzaldehyde was about 2.3 and 3.8 times more toxic than benzyl benzoate and N,N-diethyl-m-toluamide, respectively, against T. putrescentiae adults. These results indicated that benzaldehyde isolated from P. persica seeds and the three aldehydes (cinnamaldehyde, salicylaldehyde, and phthaldialdehyde) are useful as lead compounds for developing acaricidal agents against T. putrescentiae adults. The color of the T. putrescentiae cuticle was changed by treatment with cinnamaldehyde, salicylaldehyde, and phthaldialdehyde.

Food Protective Effects of the Active Constituent Isolated from Ostericum praeteritum against the Stored Food Mite, Tyrophagus putrescentiae

2013 ◽  
Vol 76 (11) ◽  
pp. 1887-1891
Author(s):  
MIN-GI KIM ◽  
JU-HYUN JEON ◽  
HOI-SEON LEE
Keyword(s):  
Lethal Dose ◽  
Acaricidal Activity ◽  
Contact Toxicity ◽  
Protective Effects ◽  
Tyrophagus Putrescentiae ◽  
Toxicity Bioassay ◽  
Benzyl Benzoate ◽  
Active Constituent ◽  
Toxic Compound ◽  
Chromatographic Techniques

The acaricidal effects of the active constituent isolated from Ostericum praeteritum oil and its derivatives were compared with that of benzyl benzoate using fumigant and contact toxicity bioassays against Tyrophagus putrescentiae mites. The active compound of O. praeteritum was isolated by various chromatographic techniques and was identified as 3-methylphenol (C7H8O). On the basis of 50% lethal dose values, 3-methylphenol (1.42 μg/cm2) was determined to be 9.18 times more effective than benzyl benzoate (13.04 μg/cm2), followed by 6-fluoro-3-methylphenol (2.18 μg/cm2), 4-isopropyl-3-methylphenol (2.53 μg/cm2), and 6-chloro-3-methylphenol (4.03 μg/cm2), against Tyrophagus putrescentiae mites in the fumigant bioassay. In the contact toxicity bioassay, 3-methylphenol (1.03 μg/cm2) was the most-toxic compound against T. putrescentiae mites, followed by 6-fluoro-3-methylphenol (2.09 μg/cm2), 4-isopropyl-3-methylphenol (2.11 μg/cm2), 6-chloro-3-methylphenol (3.78 μg/cm2), and benzyl benzoate (10.33 μg/cm2). These results indicate that the introduction of chloro, isopropyl, and fluoro functional groups to the 3-methylphenol skeleton increased the acaricidal activity. Therefore, 3-methylphenol and its derivatives could potentially be used as natural acaricides against T. purescentiae.

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