Fine structure of the stinger, histology and histochemistry of the venom gland in the scorpion Androctonus amoreuxi (Buthidae)

Soliman, Belal A.; Shoukry, Nahla M.; Mohallal, Mahmoud E.; Fetaih, Hamdy; khaled, Howayda S.

doi:10.1016/j.jobaz.2013.03.001

Cited by 12 publications

(16 citation statements)

References 11 publications

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“…1. The pits, adorned with microsized setae, may exhibit some microanatomical functions as chemoreceptors [26,27]. The stinger surface is featured by a gradient color that varies from light at the base to dark at the apex.…”

Section: Resultsmentioning

confidence: 99%

Study of biomechanical, anatomical, and physiological properties of scorpion stingers for developing biomimetic materials

Zhao

Tao

Feng

2016

Materials Science and Engineering: C

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Section: Resultsmentioning

confidence: 99%

Study of biomechanical, anatomical, and physiological properties of scorpion stingers for developing biomimetic materials

Zhao

Tao

Feng

2016

Materials Science and Engineering: C

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“…In venomous animals, the venom-producing glands usually have well-defined lumen, where the secretion accumulates after traversing the secretory epithelium cell membrane [ 7 , 8 ]. In contrast, in anuran amphibians, the poison glands are formed by a single multinucleated cytoplasm mass, constituting a secretory syncytium [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Morphological and biochemical characterization of the cutaneous poison glands in toads (Rhinella marina group) from different environments

et al. 2018

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BackgroundAmphibian defence against predators and microorganisms is directly related to cutaneous glands that produce a huge number of different toxins. These glands are distributed throughout the body but can form accumulations in specific regions. When grouped in low numbers, poison glands form structures similar to warts, quite common in the dorsal skin of bufonids (toads). When accumulated in large numbers, the glands constitute protuberant structures known as macroglands, among which the parotoids are the most common ones. This work aimed at the morphological and biochemical characterization of the poison glands composing different glandular accumulations in four species of toads belonging to group Rhinella marina (R. icterica, R. marina, R. schneideri and R. jimi). These species constitute a good model since they possess other glandular accumulations together with the dorsal warts and the parotoids and inhabit environments with different degrees of water availability.ResultsWe have observed that the toads skin has three types of poison glands that can be differentiated from each other through the morphology and the chemical content of their secretion product. The distribution of these different glands throughout the body is peculiar to each toad species, except for the parotoids and the other macroglands, which are composed of an exclusive gland type that is usually different from that composing the dorsal warts. Each type of poison gland presents histochemical and biochemical peculiarities, mainly regarding protein components.ConclusionsThe distribution, morphology and chemical composition of the different types of poison glands, indicate that they may have different defensive functions in each toad species.

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“…Although being a rather destructive mode of secretion, holocrine mechanisms have been reported for several spider venom systems [ 6 , 13 , 14 , 50 ]. As it is also encountered in scorpions, holocrine secretion may play a general role in arachnids [ 51 ]. Lastly, apocrine secretion, in which parts of the secreting cells form extracellular vesicles, is known as a release mechanism in spider venom glands [ 6 , 52 ].…”

Section: Discussionmentioning

confidence: 99%

Morphological Analysis Reveals a Compartmentalized Duct in the Venom Apparatus of the Wasp Spider (Argiope bruennichi)

Schmidtberg

Reumont

Lemke

et al. 2021

Toxins

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Spiders are one of the most successful groups of venomous animals, but surprisingly few species have been examined in sufficient detail to determine the structure of their venom systems. To learn more about the venom system of the family Araneidae (orb-weavers), we selected the wasp spider (Argiope bruennichi) and examined the general structure and morphology of the venom apparatus by light microscopy. This revealed morphological features broadly similar to those reported in the small number of other spiders subject to similar investigations. However, detailed evaluation of the venom duct revealed the presence of four structurally distinct compartments. We propose that these subunits facilitate the expression and secretion of venom components, as previously reported for similar substructures in pit vipers and cone snails.

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Fine structure of the stinger, histology and histochemistry of the venom gland in the scorpion Androctonus amoreuxi (Buthidae)

Cited by 12 publications

References 11 publications

Study of biomechanical, anatomical, and physiological properties of scorpion stingers for developing biomimetic materials

Study of biomechanical, anatomical, and physiological properties of scorpion stingers for developing biomimetic materials

Morphological and biochemical characterization of the cutaneous poison glands in toads (Rhinella marina group) from different environments

Morphological Analysis Reveals a Compartmentalized Duct in the Venom Apparatus of the Wasp Spider (Argiope bruennichi)

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