Hematophagy and Hormone Release

Adams, T.S.

doi:10.1093/aesa/92.1.1

Cited by 67 publications

(40 citation statements)

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“…Although shown only in vitro, recombinant SchgrITPL itself is not bioactive in the hindgut I sc bioassay but is capable of competing with the highly bioactive SchgrITP for receptor binding which can lead to dramatically diminished bioactivity of SchgrITP (Wang et al, 2000). In blood-feeding insects, distension of the abdominal wall is known to trigger the release of a potent diuretic hormone(s) into the haemolymph followed by increased fluid secretion from MTs (Adams, 1999;Wheelock et al, 1988;Williams et al, 1983;Williams and Beyenbach, 1984). However, ADFs terminating the postprandial diuresis have been proposed to come into play during secretion shut-down, which occurs concomitantly with an increase in cyclic guanosine monophosphate (cGMP) content in Rhodnius MTs as the diuresis decreases (Quinlan et al, 1997).…”

Section: Possible Functions Of Itps and Itpls And Functional Morpholmentioning

confidence: 99%

Insect ion transport peptides are derived from alternatively spliced genes and differentially expressed in the central and peripheral nervous system

Dircksen

2009

Journal of Experimental Biology

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Section: Possible Functions Of Itps and Itpls And Functional Morpholmentioning

confidence: 99%

Insect ion transport peptides are derived from alternatively spliced genes and differentially expressed in the central and peripheral nervous system

Dircksen

2009

Journal of Experimental Biology

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“…Approximately 14,000 species of insects have evolved to feed on blood, 1 and 300-400 of these species pose a threat to humans. 2 The blood-feeding insects depend on blood in different manners.…”

Section: Introductionmentioning

confidence: 99%

Environmental and Genetic Factors Determine Whether the Mosquito Aedes aegypti Lays Eggs Without a Blood Meal

Ariani¹,

Smith²,

Osei-Poku³

et al. 2015

The American Society of Tropical Medicine and Hygiene

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Abstract. Some mosquito strains or species are able to lay eggs without taking a blood meal, a trait named autogeny. This may allow populations to persist through times or places where vertebrate hosts are scarce. Autogenous egg production is highly dependent on the environment in some species, but the ideal conditions for its expression in Aedes aegypti mosquitoes are unknown. We found that 3.2% of females in a population of Ae. aegypti from Kenya were autogenous. Autogeny was strongly influenced by temperature, with many more eggs laid at 28 C compared with 22 C. Good nutrition in larval stages and feeding on higher concentrations of sugar solution during the adult stage both result in more autogenous eggs being produced. The trait also has a genetic basis, as not all Ae. aegypti genotypes can lay autogenously. We conclude that Ae. aegypti requires a favorable environment and a suitable genotype to be able to lay eggs without a blood meal.

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“…The feeding habit on vertebrate blood has evolved in some 14 000 insect species representing 5 orders, namely Siphonaptera (fleas), Phthiraptera (lice), Diptera (mosquitoes and flies), Hemiptera (bedbugs and kissing bugs) and Lepidoptera (an exceptional case of nocturid moth Calyptra eustrigata) (Adams, 1999;Lehane, 2005). Some of the insects such as mosquitoes and fleas feed on vertebrate blood only at their adult stage mainly for gonad maturation and egg production, whereas their larvae live on different food sources.…”

Section: Introductionmentioning

confidence: 99%

Reductive genome evolution, host–symbiont co-speciation and uterine transmission of endosymbiotic bacteria in bat flies

et al. 2011

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Bat flies of the family Nycteribiidae are known for their extreme morphological and physiological traits specialized for ectoparasitic blood-feeding lifestyle on bats, including lack of wings, reduced head and eyes, adenotrophic viviparity with a highly developed uterus and milk glands, as well as association with endosymbiotic bacteria. We investigated Japanese nycteribiid bat flies representing 4 genera, 8 species and 27 populations for their bacterial endosymbionts. From all the nycteribiid species examined, a distinct clade of gammaproteobacteria was consistently detected, which was allied to endosymbionts of other insects such as Riesia spp. of primate lice and Arsenophonus spp. of diverse insects. In adult insects, the endosymbiont was localized in specific bacteriocytes in the abdomen, suggesting an intimate host-symbiont association. In adult females, the endosymbiont was also found in the cavity of milk gland tubules, which suggests uterine vertical transmission of the endosymbiont to larvae through milk gland secretion. In adult females of Penicillidia jenynsii, we discovered a previously unknown type of symbiotic organ in the Nycteribiidae: a pair of large bacteriomes located inside the swellings on the fifth abdominal ventral plate. The endosymbiont genes consistently exhibited adenine/thymine biased nucleotide compositions and accelerated rates of molecular evolution. The endosymbiont genome was estimated to be highly reduced, B0.76 Mb in size. The endosymbiont phylogeny perfectly mirrored the host insect phylogeny, indicating strict vertical transmission and host-symbiont co-speciation in the evolutionary course of the Nycteribiidae. The designation 'Candidatus Aschnera chinzeii' is proposed for the endosymbiont clade.

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Hematophagy and Hormone Release

Cited by 67 publications

References 0 publications

Insect ion transport peptides are derived from alternatively spliced genes and differentially expressed in the central and peripheral nervous system

Insect ion transport peptides are derived from alternatively spliced genes and differentially expressed in the central and peripheral nervous system

Environmental and Genetic Factors Determine Whether the Mosquito Aedes aegypti Lays Eggs Without a Blood Meal

Reductive genome evolution, host–symbiont co-speciation and uterine transmission of endosymbiotic bacteria in bat flies

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