The integument of the Queensland fruit fly, Dacus tryoni (Frogg.)

Evans, Jeremy J.T.

doi:10.1007/bf00344549

Cited by 24 publications

(8 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, they differ morphologically from the typical cells of this class in their secretory collection or channelling apparatus. This apparatus resembles that of morphologically similar integumental glands noted by Evans (1967) in two patches on the fifth abdominal terga of both sexes of the fruit fly, Ducus tryoni.…”

Section: Discussionsupporting

confidence: 70%

“…In the glandular patches of Dacus (Evans 1967) there are bristles or hairs, but these are not innervated. Rather, they have greatly enlarged "trichogen" and "tormogen" cells.…”

Section: Discussionmentioning

confidence: 99%

“…The latter contains a vacuole lined with microvilli. Evans (1967) suggests that the trichogen and tormogen cells probably produce the waxy and aqueous components of the secretion, respectively, which could be observed on the surface of the glandular cuticle as aqueous droplets coated by a waxy film. We observed no secretory droplets on the porous plaques near the hairs in the Urophoru flies by LM, nor was there any observable exudate produced by pressurizing or squeezing various parts of the abdomen and oviscape.…”

Section: Discussionmentioning

confidence: 99%

“…According to Evans ( 1967), this morphological type of gland was known to occur among tephritids only in the two closely related genera Dacus and Cullu~ztru in the tribe Dacini. The genus Urophora, in the tribe Myopitini (previously Urophorini), is not closely related to the above two genera.…”

Section: Discussionmentioning

confidence: 99%

“…These report the occurrence of a variety of glandular tissues in males of 15 species in five genera (Ahmad and Afzal 1977;Nation 198 1). There are no known reports to date of sex-specific glands in females, although integumental glands common to both sexes were noted by Evans (1967).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Integumental glands associated with tactile hairs on the ovipositor of tephritid flies

Berube¹,

Zacharuk²

1984

Can. J. Zool.

View full text Add to dashboard Cite

1984. lntegumental glands associated with tactile hairs on the ovipositor of tephritid flies. Can. J. Zool. 62: [199][200][201][202]. The seventh abdominal segment. which forms the oviscape of the ovipositor in the tephritid tlies Urol>llorrr rgfi'rzis and U . querdriJirsr-inrn, bears setae in two bilaterally symmetrical rows on the dorsal and ventral aspects of its distal margin and scattered irregularly over the rest of its surface. At the anterior side of the base of each hair is a porous plaque covering a channel through the cuticle into which strands of a microtubular "secretory" material extend from the cytoplasln of a greatly enlarged gland cell. One such cell is associated with each hair, which is innervated by a single dendrite that terminates in a tubular body at the base of the hair. These gland cells are absent in male tlies. The possible niorphologic. functional, and taxonomic significances of these gland cells are discussed. BERUBE, D. E., et R. Y. ZACHARUK. 1984. lntegumental glands associated with tactile hairs on the ovipositor of tephritid tlies.Can. J. Zool. 62: 199-202. Le septieme segment abdominal. qui forme I'oviscapte de I'ovipositeur chez les tcphritidcs Ur-ol~hc~rcl c!f'i'nis et U . quadri/ilsc.iatcl. porte des soies disposees en deux rangees B symetrie bilatcrale sur lcs faces dorsale et ventrale dc sa bordure distale, et des soies dispersees irr6gulierement sur le reste de sa surface. Sur la face antcrieure de chaque poil. ii la base. il y a une plaque poreuse qui couvre I'emnbouchure d'un canal qui traverse la cuticule et ou aboutissent dcs filaments de substance "s~cretrice" microtubulaire issus du cytoplasme d'unc cellule glandulaire de grandc taillc. Une cellule dc ce type est associee a chaque poil qui reqoit I'innervation d'une dendrite unique termince en un corps tubulaire B la base du poil. Ces cellules glandulaires sont absentes chez les mouches miles. Les aspects morphologique et fonctionnel de ces cellules glandulaires de meme que leur importance taxonomique font l'objet d'une discussion.[Traduit par le journal]

show abstract

Section: Discussionsupporting

confidence: 70%

“…In the glandular patches of Dacus (Evans 1967) there are bristles or hairs, but these are not innervated. Rather, they have greatly enlarged "trichogen" and "tormogen" cells.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Integumental glands associated with tactile hairs on the ovipositor of tephritid flies

Berube¹,

Zacharuk²

1984

Can. J. Zool.

View full text Add to dashboard Cite

show abstract

Fine structure and metamorphosis of the wax gland cells in a psyllid insect, Anomoneura mori schwartz (Homoptera)

Waku¹

1978

Journal of Morphology

View full text Add to dashboard Cite

The fine structure of the wax gland of Anomoneura nymph and its metamorphic change were investigated. In the nymph, this organ encircles the anus, and consists of two kinds of cells, derived from epidermal cells: (1) very tall, slim wax cells, which produce and secrete the wax, and (2) flat interstitial cells found among the wax cells. The whole gland is covered by a wax-secreting cuticle with a delicate surface sculpture. Each wax cell has a long, wide duct which opens at the cuticle and penetrates the entire cell. Its cytoplasm is rich in mitochondria and smooth endoplasmic reticulum while that of interstitial cells contains rough endoplasmic reticulum. During each nymphal molt, the cluster of primordial wax gland cells - derived from the epidermis - proliferates rapidly and forms the gland of the next instar. The gland of the preceding instar meanwhile degenerates. Interstitial cells play an important role in cuticle formation and shedding at each molt. These cells alone produce and deposit the new cuticle of the next instar; the wax cells, specialized for wax production, cannot produce cuticle. The apical portion of the wax cell is cut off from the main cell body by growth of the surrounding interstitial cells. Thereafter, the wax cells degenerate, resulting in the rapid disappearance of the previous instar's wax gland. Adults lack this gland entirely.

show abstract

Ultrastructure of the wax‐gland system in subterranean scale insects (homoptera, coccoidea, margarodidae)

Foldi¹

1981

Journal of Morphology

View full text Add to dashboard Cite

The ultrastructure of wax glands (integumentary, stigmatic, and peristigmatic glands) was investigated in larvae, cysts, and adult females and males of species belonging to the genera Porphyrophora, Sphaeraspis, and Eurhizococcus. The general organization and cytological characteristics are similar for all glands studied. Each gland is composed of a single layer of 8 to 40 cells. The glandular cells are characterized by a very large quantity of smooth endoplasmic reticulum which forms dense zones throughout the cytoplasm, but is always placed near the collecting canals in the presence of mitochondria. Each cell has a central canal reservoir which penetrates it deeply and gives rise to a large number of lateral collecting canals, formed by the invagination of the apical plasma membrane. The canals open into a subcuticular cavity forming a common reservoir in which the secretion is accumulated. This reservoir is covered by a modified cuticle formed from the endocuticle and the epicuticle. The endocuticle is composed of a network of fine tubular structures and has many filaments on its surface. The epicuticle is perforated by numerous pores. There is no cuticular duct. The secretion crosses the cuticle in three successive steps. First, it passes through the filaments, then through fine tubular structures of the endocuticle, and finally through the epicuticular pores.

show abstract

The integument of the Queensland fruit fly, Dacus tryoni (Frogg.)

Cited by 24 publications

References 13 publications

Integumental glands associated with tactile hairs on the ovipositor of tephritid flies

Integumental glands associated with tactile hairs on the ovipositor of tephritid flies

Fine structure and metamorphosis of the wax gland cells in a psyllid insect, Anomoneura mori schwartz (Homoptera)

Ultrastructure of the wax‐gland system in subterranean scale insects (homoptera, coccoidea, margarodidae)

Contact Info

Product

Resources

About