Results 51 to 60 of about 10,806 (203)

Phase Shifts of the Circadian Locomotor Rhythm Induced by Pigment-Dispersing Factor in the Cricket Gryllus bimaculatus [PDF]

, 2003
Pigment-dispersing factors (PDFs) are octadeca-peptides widely distributed in insect optic lobes and brain. In this study, we have purified PDF and determined its amino acid sequence in the cricket Gryllus bimaculatus.
Fujisawa, Yuko, Hisada, Miki, Saifullah, ASM, Singaravel, Muniyandi, Tomioka, Kenji   +4 more
core   +1 more source

Insects and Survival: A Review of Primary and Secondary Defense Strategies

Entomologia Experimentalis et Applicata, EarlyView.
Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva, Rodrigo Almeida Pinheiro, José Cola Zanuncio, Conceição Aparecida dos Santos   +3 more
wiley   +1 more source

The genomic and functional landscapes of developmental plasticity in the American cockroach

Nature Communications, 2018
The American cockroach (Periplaneta americana) is an hemimetabolous insect with rapid growth, high fecundity, and remarkable tissue-regeneration capability.
Sheng Li, Shiming Zhu, Qiangqiang Jia, Dongwei Yuan, Chonghua Ren, Kang Li, Suning Liu, Yingying Cui, Haigang Zhao, Yanghui Cao, Gangqi Fang, Daqi Li, Xiaoming Zhao, Jianzhen Zhang, Qiaoyun Yue, Yongliang Fan, Xiaoqiang Yu, Qili Feng, Shuai Zhan   +18 more
doaj   +1 more source

Induced hyperlipaemia and immune challenge in locusts [PDF]

, 2004
Injections of immunogens, such as β-1,3-glucan or lipopolysaccharide (LPS), bring about a marked hyperlipaemia with associated changes in lipophorins and apolipophorin-III in the haemolymph of Locusta migratoria.
Ashida, Ashida, Brehelin, Candy, Cheeseman, Dettloff, Dettloff, Dunphy, Flanigan, Gillespie, Goldsworthy, Goldsworthy, Goldsworthy, Goldsworthy, Goldsworthy, Goldsworthy, Goldsworthy, Graham J. Goldsworthy, Harlow, Harthoorn, Jomori, Jutsum, Kawasaki, Kodrik, Lee, Lisa M. Mullen, Ma, Mary E. Lightfoot, Mullen, Mwangi, Oudejans, Oudejans, Schacterle, Soderhall, Strand, Wang, Whitten, Wiesner, Zakarian, Ziegler   +39 more
core   +1 more source

Comparative Analysis of Gut Eukaryotic Communities in Three Laboratory‐Reared Cockroach Species Using Metabarcoding

Journal of Eukaryotic Microbiology, Volume 73, Issue 3, May/June 2026.
ABSTRACT Cockroaches are known reservoirs for diverse bacterial microbiomes. However, comprehensive analyses of the eukaryotic communities within cockroaches remain limited. In this study, we selected three long‐term laboratory‐reared cockroach species (Blattella germanica, Periplaneta fuliginosa, and Periplaneta japonica) and performed metabarcoding ...
Dongjun Kang, Xavier Chavarria, Jun Ho Choi, Myung‐hee Yi, Yun Soo Jang, Singeun Oh, Du‐Yeol Choi, Arwa Shatta, Sohyeon Yun, Myungjun Kim, Seongjun Choe, Tai‐Soon Yong, Ju Yeong Kim   +12 more
wiley   +1 more source

Behavioural study of Nymphs of Periplaneta americana in a Light-Dark Box Subjected to Different Environmental conditions

Dera Natung Government College Research Journal, 2020
Nymphs of Periplaneta americana were used as an insect model to test behavioral changes in light-dark box experimental setup in relation to circadian rhythm disruption.
Nending Muni, Trinity Sherpaa, Dilukshi Shashikaran   +2 more
doaj   +1 more source

Adipokinetic hormone enhances laminarin and bacterial lipopolysaccharide-induced activation of the prophenoloxidase cascade in the African migratory locust, Locusta migratoria [PDF]

, 2002
Lom-AKH-I enhances the activation in vivo of prophenoloxidase in the haemolymph of the African migratory locust, Locusta migratoria, in response to challenge with laminarin.
Brehelin, Coodin, Dettloff, Dunphy, Duvic, Gillespie, Goldsworthy, Goldsworthy, Goldsworthy, Graham Goldsworthy, Gunnarsson, Gunnarsson, Halwani, Halwani, Hoffmann, Kato, Kato, Kitchens, Kwaku Opoku-Ware, Lisa Mullen, Mandato, Ratcliffe, Wiesner, Zor   +23 more
core   +1 more source

Cockroach‐Derived Leucokinin VIII Peptide Accelerates Diabetic Skin Wound Healing by Enhancing Keratinocyte Filopodia Formation

Advanced Science, Volume 13, Issue 24, 27 April 2026.
This study identifies the cockroach‐derived peptide leucokinin VIII as a potent accelerator of diabetic wound healing. By activating the FAK‐ACTG1 axis, the peptide drives keratinocyte migration and filopodia formation. Delivered via a developed PLGA‐PEG‐PLGA thermosensitive hydrogel for sustained release, this approach significantly hastens wound ...
Zhengshan Qin, Jinchuan Wu, Xiehua Xiao, Xirui Wang, Nianhui Ding, Xin Zhao, Lu Ma, Jie Li, Lunkun Ma, Cehua Ou, Ning Ma, Jianguo Feng   +11 more
wiley   +1 more source

Identification of an additional periplanone receptor family gene preferentially expressed in the male antennae of the American cockroach

Scientific Reports
Periplaneta cockroaches use periplanone analogs as female sex pheromones to attract males. We previously identified two periplanone receptor genes, PameOR1 and PameOR2, in the American cockroach Periplaneta americana.
Takayuki Watanabe, Atsushi Ugajin, Kosuke Tateishi, Hidehiro Watanabe, Makoto Mizunami   +4 more
doaj   +1 more source

Parasitoides de Periplaneta americana (Linnaeus, 1758) (Blattaria: Blattidae) em zona urbana de Manaus, Amazonas, Brasil

Entomological Communications, 2022
In Brazil, synanthropic cockroaches are considered one of the insect groups of greatest economic importance. Aprostocetus hagenowii (Ratzeburg, 1852) (Hymenoptera: Eulophidae) and Evania appendigaster (Linnaeus, 1758) (Hymenoptera: Evaniidae) are ...
Adriane G. M. Lima, Alexsandra C. Nascimento, Daniell R. R. Fernandes   +2 more
doaj   +1 more source