Anatomical and Histological Changes in Internal Organs of Adult Trypodendron lineatum, Gnalhotrichus retusus, and G. sulcatus (Coleoptera: Scolytidae)1

Schneider, I.; Rudinský, J. A.

doi:10.1093/aesa/62.5.995

Cited by 22 publications

(15 citation statements)

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“…In general, the alimentary canal of H. hampei was similar to others Scolytinae beetles such as the Dendroctonus spp. (Díaz et al 2000Silva-Olivares 2003), Trypodendron lineatum, Gnathotrichus retusus and Gnathotichus Sulcatus (Schneider & Rudinsky 1969), Ips pini (Hall et al 2002) and Scolytus multistriatus (Baker & Estrin 1974). The length proportion was also similar among Scolytinae.…”

Section: Discussionmentioning

confidence: 75%

“…All these regions are involved in ingestion, storage, digestion, absorption and of food and water balance (Borror et al 1976, Calder 1989, Romoser & Stoffolano 1998. There gross morphology and histology of the Scolytinae beetles Scolytus multistriatus Marsham (Baker & Estrin 1974), Dendroctonus group (Díaz et al 1998Silva-Olivares et al 2003), Trypodendron lineatum Oliv., Gnathotrichus retusus LeConte and G. sulcatus LeConte (Schneider & Rudinsky 1969), and Ips pini Say (Coleoptera: Curculionidae) (Hall et al 2002) reported some features of alimentary canal which are useful for taxonomy of these beetles (Lopez-Buenfi l et al 2001).…”

Section: Morfología General Del Tracto Digestivo Y Sistema Reproductimentioning

confidence: 99%

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Alimentary canal and reproductive tract of Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)

G¹,

P²,

E³

et al. 2008

Neotrop. entomol.

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Neotropical Entomology 37(2): 143-151 (2008) Morfología General del Tracto Digestivo y Sistema Reproductivo de Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)RESUMEN -El estudio morfológico del tracto digestivo y el sistema reproductor de machos y hembras de Hypothenemus hampei Ferrari se describe a continuación. El tracto digestivo presenta un arreglo típico descrito para otros insectos. Ahora las diferencias morfológicas se encontraron en el buche del estomodeo, en donde se observaron estructuras espinosas y en el mesenteron se observo un número reducido de ciegos gástricos. Se evidenció por primera vez el comportamiento de la alimentación de las hembras de H. hampei, que requiere aparentemente de la ingesta del endosperma del café para poder producir huevos viables durante la oviposición. La presencia de burbujas de aire al interior del ventrículo anterior se cree que puede ser debido al hambre, más que a la respuesta al medio ambiente durante el vuelo como lo indicaban anteriores observaciones. El sistema reproductor de la hembra presenta dos ovarios y un arreglo estructural común a especímenes de la familia Curculionidae. El sistema reproductor masculino mostró una diferencia signifi cativa con respecto a otros miembros de la familia Curculionidae e incluso a otra especie de la tribu Scolytinae presentando un aedeagus esclerotizado compuesto de varios orifi cios en la porción terminal, por donde el esperma se expulsa durante el apareamiento. PALABRAS-CLAVE: Broca del café, morfología interna, comportamiento de alimentación, reproducciónABSTRACT -The alimentary canal and the reproductive tract of males and females of Hypothenemus hampei Ferrari are described. The alimentary canal of H. hampei showed the crop with several spinelike structures and the midgut with few gastric caeca. We evidenced for the fi rst time that adult females need to feed on coffee in order to produce viable eggs before and during oviposition period. The presence of air bubbles inside the anterior midgut may be due to starvation rather than the response of the environment during fl ying as previously reported. Two ovaries and the same structures and arrangements common to individuals of the Curculionidae beetles composed the female reproductive system. The male reproductive tract showed a signifi cant difference with respect to other Curculionidae and even other Scolytinae species as it showed a sclerotized aedeagus with several pore-like structures in the terminal portion where sperm is released during mating.

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Section: Discussionmentioning

confidence: 75%

Section: Morfología General Del Tracto Digestivo Y Sistema Reproductimentioning

confidence: 99%

Alimentary canal and reproductive tract of Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)

G¹,

P²,

E³

et al. 2008

Neotrop. entomol.

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“…These small mycangia include oral pouches, pronotal pits, elytral pouches, and coxal enlargements, each of which are simple modifications of the adult beetle's exoskeleton, with secreting gland cells near the opening of the mycangium (Beaver 1989, Francke-Grosmann 1967. In contrast, certain genera of Scolytinae exhibit markedly larger and more elaborate mycangia that are set entirely within the body and are composed of a reticular structure punctuated by gland cells secreting directly into the mycangium (Finnegan 1963, Francke-Grosmann 1956, Schneider and Rudinsky 1969b, Stone et al 2007. These larger, complex mycangia have specialized channels or tubes that direct the overflow of fungal growth to the outside of the beetle for tunnel inoculation.…”

Section: Introductionmentioning

confidence: 99%

Three genera in the Ceratocystidaceae are the respective symbionts of three independent lineages of ambrosia beetles with large, complex mycangia

et al. 2015

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The genus Ambrosiella accommodates species of Ceratocystidaceae (Microascales) that are obligate, mutualistic symbionts of ambrosia beetles, but the genus appears to be polyphyletic and more diverse than previously recognized. In addition to Ambrosiella xylebori, Ambrosiella hartigii, Ambrosiella beaveri, and Ambrosiella roeperi, three new species of Ambrosiella are described from the ambrosia beetle tribe Xyleborini: Ambrosiella nakashimae sp. nov. from Xylosandrus amputatus, Ambrosiella batrae sp. nov. from Anisandrus sayi, and Ambrosiella grosmanniae sp. nov. from Xylosandrus germanus. The genus Meredithiella gen. nov. is created for symbionts of the tribe Corthylini, based on Meredithiella norrisii sp. nov. from Corthylus punctatissimus. The genus Phialophoropsis is resurrected to accommodate associates of the Xyloterini, including Phialophoropsis trypodendri from Trypodendron scabricollis and Phialophoropsis ferruginea comb. nov. from Trypodendron lineatum. Each of the ten named species was distinguished by ITS rDNA barcoding and morphology, and the ITS rDNA sequences of four other putative species were obtained with Ceratocystidaceae-specific primers and template DNA extracted from beetles or galleries. These results support the hypothesis that each ambrosia beetle species with large, complex mycangia carries its own fungal symbiont. Conidiophore morphology and phylogenetic analyses using 18S (SSU) rDNA and TEF1α DNA sequences suggest that these three fungal genera within the Ceratocystidaceae independently adapted to symbiosis with the three respective beetle tribes. In turn, the beetle genera with large, complex mycangia appear to have evolved from other genera in their respective tribes that have smaller, less selective mycangia and are associated with Raffaelea spp. (Ophiostomatales).

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“…It has been suggested that chemical secretions from gland cells surrounding mycangia (in general) may regulate fungal growth and morphology (Batra 1963; Abrahamson et al. 1967; Francke‐Grossmann 1967; Schneider and Rudinsky 1969a,b; Barras and Perry 1971; Happ et al. 1971).…”

Section: Discussionmentioning

confidence: 99%

“…Some mycangia are associated with glandular cells, and secretions from these specialised cells are thought to serve to protect mycangial fungal cells from desiccation, provide nourishment for proliferating fungal propagules, regulate fungal species composition and determine the form of fungal growth in mycangia (Batra 1963; Abrahamson et al. 1967; Francke‐Grossmann 1967; Schneider and Rudinsky 1969a,b; Barras and Perry 1971; Happ et al. 1971; Six 2003).…”

Section: Introductionmentioning

confidence: 99%

Ultrastructure of the mycangium of the southern pine beetle, Dendroctonus frontalis (Coleoptera: Curculionidae, Scolytinae): complex morphology for complex interactions

et al. 2011

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Yuceer, C., Hsu, C.-Y., Erbilgin, N. and Klepzig, K.D. 2011. Ultrastructure of the mycangium of the southern pine beetle, Dendroctonus frontalis (Coleoptera: Curculionidae, Scolytinae): complex morphology for complex interactions.-Acta Zoologica (Stockholm) 92: 216-224.The southern pine beetle (SPB) (Dendroctonus frontalis Zimmermann) is the most economically important pest of southern pine forests. Beetles carry fungal cells within specialised cuticular structures, called mycangia. Little is known about the mycangia ultrastructure or function. We used cryo-fracturing and scanning electron microscopy to examine the ultrastructural features of SPB mycangia and surrounding tissues. Mycangia, one on each side of anterior portion of the prothorax, are terminated on the dorsal side at a 'mycangial bridge'. This sclerotised mycangial bridge does not appear to provide a passage between the two mycangia, suggesting that each mycangium functions independently. Mycangia are surrounded by abundant tracheoles connecting the structures to the outside via openings within the prothorax. Previously unknown pits overlying the mycangial gland cells were also observed in both the inner wall and anterior fold of prothorax. We hypothesise that these openings and pits may play roles in determining which fungi enter, and grow within, the mycangium.

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Anatomical and Histological Changes in Internal Organs of Adult Trypodendron lineatum, Gnalhotrichus retusus, and G. sulcatus (Coleoptera: Scolytidae)1

Cited by 22 publications

References 0 publications

Alimentary canal and reproductive tract of Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)

Alimentary canal and reproductive tract of Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)

Three genera in the Ceratocystidaceae are the respective symbionts of three independent lineages of ambrosia beetles with large, complex mycangia

Ultrastructure of the mycangium of the southern pine beetle, Dendroctonus frontalis (Coleoptera: Curculionidae, Scolytinae): complex morphology for complex interactions

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