Results 31 to 40 of about 13,488,800 (199)

Intestinal microbial flora of the of the American cockroach, Periplaneta americana L [PDF]

open access: yesApplied and Environmental Microbiology, 1979
A morphological study employing scanning and transmission electron microscopy was made by the alimentary tract of the American cockroach, Periplaneta americana L. A. complex microbiota of diverse morphology, which could not be readily dislodged, was observed and found to be restricted to the hindgut, particularly the colon.
J W, Bracke, D L, Cruden, A J, Markovetz
openaire   +2 more sources

Periplaneta americana

open access: yes, 1946
8.Periplaneta americana (Linnaeus). Blatta americana Linnaeus, Syst. Nat., 10th ed., 424, 1758. Periplaneta americana, Burmeister, Handb. Ent. 2: 503, 1838. The American roach was a pest in our house at Piti.
Swezey, O. H.
core   +1 more source

Repellency and insecticidal properties of seed oil of Jatropha curcas L. against American cockroach, Periplaneta americana L.

open access: yesJournal of Basic and Applied Zoology, 2021
Background This study evaluated the effect of Jatropha curcas seed oil against adult American cockroach, Periplaneta americana, a mechanical disease vector, using three bioassay methods to determine the repellent activity, contact and fumigant toxicity ...
Peace Mayen Edwin Ubulom   +2 more
doaj   +1 more source

Diagnóstico de alergia a baratas no ambiente clínico: estudo comparativo entre o teste cutâneo e IgE específica Use of the skin prick test and specific immunoglobulin E for the diagnosis of cockroach allergy

open access: yesJornal de Pediatria, 2006
OBJETIVOS: Comparar a prevalência da sensibilização a baratas (Blattella germanica e Periplaneta americana) em crianças com e sem asma, verificando a concordância entre testes cutâneos e IgE específica bem como determinar a relação entre a sensibilização
Maria Isabella L. Lopes   +2 more
doaj   +1 more source

Specificity in vitro of a Phenoloxidase System from Periplaneta americana (L.) [PDF]

open access: yesNature, 1960
ENZYMES capable of oxidizing mono- and diphenols are widely distributed in insects; some of these compounds are involved in the biosynthesis of exoskeletal substances, notably sclerotin1. While several ortho- and para-diphenols have been extracted from cuticle, relatively little is known about the corresponding synthetic enzymes.
D L, WHITEHEAD, P C, BRUNET, P W, KENT
openaire   +2 more sources

Anti-Inflammatory, Antipyretic, and Analgesic Potential of Chitin and Chitosan Derived from Cockroaches (Periplaneta americana) and Termites

open access: yesJournal of Functional Biomaterials
The chitin and chitosan biopolymers are extremely valuable because of their numerous industrial and pharmacological uses. Chitin and chitosan were extracted from the exoskeleton of Periplaneta americana (cockroaches) and termites using various acid and ...
Khushbakht Asad   +7 more
doaj   +1 more source

PENELITIAN EKSTRAKSI DAN KARAKTERISASI AGGREGATION PHEROMONE DARI KECOA (Periplaneta americana L)

open access: yesJurnal Kimia dan Kemasan, 2008
Kecoa merupakan serangga yang suka hidup ditempat terlindung, tertutup maupun lipatan-lipatan sehingga susah diberantas, akan tetapi serangga tersebut mempunyai alat komunikasi yang  digunakan untuk memanggil sesamanya untuk berkumpul yang disebut ...
Sri Pudji Rahayu
doaj   +1 more source

Rapid insecticide resistance bioassays for three major urban insects in Taiwan

open access: yesParasites & Vectors, 2023
Background Taiwan’s warm and humid climate and dense population provide a suitable environment for the breeding of pests. The three major urban insects in Taiwan are house flies, cockroaches, and mosquitoes. In cases where a disease outbreak or high pest
Hsiu-Hua Pai   +3 more
doaj   +1 more source

Behavioral responses to visual overstimulation in the cockroach Periplaneta americana L. [PDF]

open access: yesJournal of Comparative Physiology A, 2017
In the visual systems of insects, different types of photoreceptors contribute to specialized visual channels that mediate distinct functions and behaviors. Large compound eyes of Periplaneta americana contain photoreceptors of two spectral classes, broadband green-sensitive photoreceptors and narrow-band UV-sensitive photoreceptors.
Zhukovskaya, M. (Marianna)   +3 more
openaire   +3 more sources

DETECCIÓN DE Lophomonas blattarum EN MUESTRAS DE ESPUTO TEÑIDAS CON AZUL DE METILENO DE INDIVIDUOS ADULTOS DE UN ÁREA URBANA DE LA PROVINCIA DE CHIRIQUÍ.

open access: yesTecnociencia, 2020
Lophomonas es un género de protozoos flagelados que contiene dos especies, Lophomonas striata y L. blattarum. Ambas son consideras endocomensales parásitos de insectos domésticos. Aunque L.
Rina Sobarzo   +3 more
doaj   +1 more source

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