Ammonia attracts the haematophagous bug Triatoma infestans : behavioural and neurophysiological data on nymphs

Taneja, J.; Guérin, Patrick M.

doi:10.1007/s003590050089

Cited by 90 publications

(96 citation statements)

References 53 publications

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“…8 and 9). The existence of two functional GP sensilla sub-types as described by Taneja and Guerin (1997) was confirmed here (Table 1, Figs. 13 and 14).…”

Section: The Auxiliary Cells and Sensillum-lymph Cavitiessupporting

confidence: 85%

“…In addition, the authors confirmed the presence of two functionally different GP sensilla sub-types first suggested by Taneja and Guerin (1997): type 1 housing an NH 3 -excited receptor neurone and type 2 housing an NH 3 -excited cell in addition to a neurone responding to short-chain carboxylic acids such as isobutyric acid, present in host odour (Guerenstein, 1999).…”

Section: Introductionsupporting

confidence: 52%

“…The electrophysiological data presented suggest three functional sub-types of GP sensilla on the antennae of T. infestans (Guerenstein and Guerin, 2001;Taneja and Guerin, 1997). Both GP 1 and GP 2 sensilla house an NH 3 and an aliphatic-amine excited cell and, in addition, the GP 2 type has a carboxylic acid-excited receptor.…”

Section: Physiologymentioning

confidence: 87%

“…Fifth instar T. infestans nymphs were from our laboratory culture (Taneja and Guerin, 1997). After moulting, individuals were placed in a climate chamber at 19^0.5 8C, 80^5% RH and 12:12 h L/D cycle.…”

Section: Animalsmentioning

confidence: 99%

“…The other morphologically distinguishable third type, the doublewalled wall-pore 'F' type sensilla consists of non-articulated 6 -10 mm long pegs with a diameter of about 1 mm (Bernard, 1974). These double-walled sensilla were named the grooved-peg (GP) type by Taneja and Guerin (1997) who reported two functional GP sub-types (below). They possess longitudinal grooves with wall pores that communicate with the central lumen of the sensillum via spoke channels that cross the double cuticular wall; three dendrites, but four electrophysiologically distinguishable units were reported by Bernard (1974).…”

Section: Introductionmentioning

confidence: 99%

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Ultrastructure and receptor cell responses of the antennal grooved peg sensilla of Triatoma infestans (Hemiptera: Reduviidae)

Diehl

Vlimant

Guerenstein

et al. 2003

Arthropod Structure & Development

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Ultrastructural examination of grooved-peg (GP) sensilla on the antenna of fifth instar Triatoma infestans nymphs by scanning electron microscopy and transmission electron microscopy reveal that they are 8-18 mm long with a diameter of about 2 -2.8 mm at the nonarticulated base. Some pegs have a terminal pore. These double-walled wall-pore (dw-wp) sensilla have an outer cuticular wall with 13 -18 longitudinal grooves at the distal part of the peg. Groove channels are present at the bottom of the grooves from which radial spoke channels lead into the inner sensillum-lymph cavity. A dendrite sheath connects the tip of the thecogen cell to the inner cuticular wall thus forming separated outer and inner sensillum-lymph cavities. Four or five bipolar receptor cells are ensheathed successively within the GP sensilla by the thecogen cell, trichogen and tormogen cells. The inner dendritic segments of each sensory cell give rise at the ciliary constriction to an unbranched outer dendritic segment which can reach the tip of the sensillum.Electrophysiological recordings from the GP sensilla indicate that they house NH 3 , short-chain carboxylic acid and short-chain aliphatic amine receptor cells and can be divided into three functional sub-types (GP 1 -3). All GP sensilla carry a receptor cell excited by aliphatic amines, such as isobutylamine, a compound associated with vertebrate odour. GP type 1 and 2 sensilla house, in addition, an NH 3 -excited cell whereas the type 2 sensilla also contains a short-chain carboxylic acid receptor. No cell particularly sensitive to either NH 3 or carboxylic acids was found in the grooved-peg type 3 sensilla. GP types 1, 2 and 3 represent ca. 36, 10 and 43% of the GP sensilla, respectively, whereas the remaining 11% contain receptor cells that manifest normal spontaneous activity but do not respond to any of the afore mentioned stimuli.

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“…8 and 9). The existence of two functional GP sensilla sub-types as described by Taneja and Guerin (1997) was confirmed here (Table 1, Figs. 13 and 14).…”

Section: The Auxiliary Cells and Sensillum-lymph Cavitiessupporting

confidence: 85%

Section: Introductionsupporting

confidence: 52%

Section: Physiologymentioning

confidence: 87%

Section: Animalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ultrastructure and receptor cell responses of the antennal grooved peg sensilla of Triatoma infestans (Hemiptera: Reduviidae)

Diehl

Vlimant

Guerenstein

et al. 2003

Arthropod Structure & Development

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Functional units of a compound nose: Aesthetasc sensilla house similar populations of olfactory receptor neurons on the crustacean antennule

et al. 2000

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The lateral flagellum of the antennule of the spiny lobster Panulirus argus houses more than 1,000 morphologically similar olfactory sensilla, called aesthetascs. By using a high‐resolution activity labeling technique that depends on entry of agmatine into olfactory receptor neurons (ORNs) through cation channels during odor stimulation, we examined the distribution of different functional types of ORNs within and across mature aesthetascs. A significant number of ORNs in mature aesthetascs are labeled with agmatine during stimulation by single odorants, including adenosine‐5`‐monophosphate, ammonium chloride, cysteine, glycine, proline, and taurine. The percentage of ORNs per aesthetasc that was agmatine labeled during odor stimulation averaged 0.5–1.6% for single compounds and 4.6% for a 33‐component mimic of oyster tissue. For most antennules and antennular regions studied, the percentage of agmatine‐labeled ORNs by stimulation with single or complex odorants was statistically homogeneous across most or all aesthetascs. The extent of heterogeneity among mature aesthetascs was correlated with their age: extensive heterogeneity was observed only in the distal part of the flagellum containing the oldest aesthetascs and their ORNs. Thus, it appears that over most of the length of the aesthetasc‐bearing region of the lateral flagellum, different and distinct functional types of aesthetascs do not exist. Rather, aesthetascs appear to be repetitive morphological and functional units in olfactory coding. However, because odor sensitivity of ORNs can change with the age of an aesthetasc, some development‐related functional heterogeneity exists among aesthetascs. J. Comp. Neurol. 418:270–280, 2000. © 2000 Wiley‐Liss, Inc.

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Chemoecology of Insect Eggs and Egg Deposition

Hilker¹,

Meiners²

2003

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This is the first book to focus on insect eggs since the publication , in 1981, of Hinton's comprehensive but somewhat amorphous Biology of Insect Eggs, and the only book that has attempted to pull together aspects of the chemoecology of the eggs and oviposition. The first six chapters comprise the section on chemoecology of eggs. Here, I think, the editors have had to struggle to bring together appropriate work, and some of the chapters seem tangential to the topic. The most relevant are those of Gillott, and Eisner and colleagues. Gillott describes the female accessory glands and brings together information on the glandular origins of different chemical products associated with oviposition and the egg. The chapter by Eisner and colleagues brings together the various studies, mostly their own, on the chemicals passed in spermatophores to the female and which subsequently are found in the eggs. This is the first time such a review has been attempted and it is informative, readable and well illustrated. The chapter by Blum and Hilker on Chemical Protection of Eggs is also central to the topic, but suffers from the fact that much of it simply describes the compounds present in adults that are possibly also present in eggs. However, two tables list the compounds that are known to occur in or on eggs and the diversity of formulae is well illustrated. Perhaps it is still too soon to write a really satisfactory account of this topic. The first chapter, by Trougakos and Margaritis, gives a detailed account of egg morphology and egg morphogenesis in Dros-ophila, about which most is known, with reference to the eggs of other species where possible. The last two chapters of this section deal with Brood Protection in Social Insects, by Ayasse and Paxton, and the Role of Microorganisms for Eggs and Progeny, by Kellner. Both are interesting chapters although the information on eggs is almost incidental. The last seven chapters are devoted to the chemoecology of egg deposition. Whether egg deposition is different from oviposition never became clear to me, but that is trivial. Here there is no shortage of material. The first chapter, by Sta¨dlerSta¨dler, is a good survey of the role of plant chemical cues used by insects for locating and identifying host plants. It also includes a brief account of the sensory physiology involved in the perception of chemical cues. This is followed by a most interesting chapter by Hilker and her colleagues entitled The Plant's Response towards Insect Egg Deposition, including the induction of galls. Then comes a review by Anderson of oviposition marking phero-mones in herbivorous and carnivorous insects. Carnivorous, here, refers mainly to Hymenopteran parasitoids, but includes predaceous larvae of coccinellids and chrysopids. Subsequent chapters by McCall, and by Steidle and van Loon consider the chemoecology of oviposition site selection by insects of medical and veterinary importance and by parasitoids and predators, respectively. All these chapters are, rightly, largely descriptive and lack...

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Ammonia attracts the haematophagous bug Triatoma infestans : behavioural and neurophysiological data on nymphs

Cited by 90 publications

References 53 publications

Ultrastructure and receptor cell responses of the antennal grooved peg sensilla of Triatoma infestans (Hemiptera: Reduviidae)

Ultrastructure and receptor cell responses of the antennal grooved peg sensilla of Triatoma infestans (Hemiptera: Reduviidae)

Functional units of a compound nose: Aesthetasc sensilla house similar populations of olfactory receptor neurons on the crustacean antennule

Chemoecology of Insect Eggs and Egg Deposition

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