The Alimentary Canal of D<scp>endroctonus armandi</scp>Tsai and Li (Coleoptera: Curculionidae: Scolytinae)

Bu, Shuhai; Chen, Hui

doi:10.1649/1190.1

Cited by 11 publications

(15 citation statements)

References 21 publications

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“…Insertion of the Malpighian tubules is recognized as the beginning of the hindgut 45–47,62 . Insertion of six Malpighian tubules has been reported in other Scolytinae 51,63–67 with the distal portion of the Malpighian tubules embedded in the tissues surrounding the rectum 65–67 . However, after exhaustive visualization of these tubules in both sexes of the coffee berry borer, we only observed four long Malpighian tubules, in contrast with the six reported previously 11 .…”

Section: Discussionmentioning

confidence: 85%

“…It has been reported that the length of the alimentary canal in Dendroctonus armandi is almost three times the length of the insect 67 . In the coffee berry borer, the length of the alimentary canal was 2.82 mm for the male and 3.48 mm for the female; the ratio of the length of the alimentary canal to the body of the insect was 2.9 and 2.3, for the male and female, respectively.…”

Section: Discussionmentioning

confidence: 99%

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Anatomical study of the coffee berry borer (Hypothenemus hampei) using micro-computed tomography

Alba-Alejandre

Alba‐Tercedor

Vega

2019

Sci Rep

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traditionally, the study of anatomy in insects has been based on dissection techniques. Microcomputed tomography (micro-ct) is an X-ray based technique that allows visualization of the internal anatomy of insects in situ and does not require dissections. We report on the use of micro-ct scans to study, in detail, the internal structures and organs of the coffee berry borer (Hypothenemus hampei), the most damaging insect pest of coffee worldwide. Detailed images and videos allowed us to make the first description of the aedeagus and the first report of differences between the sexes based on internal anatomy (flight musculature, midgut shape, hindgut convolutions, brain shape and size) and external morphology (lateral outline of the pronotum and number of abdominal tergites). This study is the first complete micro-ct reconstruction of the anatomy of an insect and is also the smallest insect to have been evaluated in this way. High quality rendered images, and additional supplementary videos and 3D models are suitable for use with mobile devices and are useful tools for future research and as teaching aids. Ever since the introduction of coffee from Africa to various continents, it has become an important commodity not only to producing countries, but also to billions of consumers that take delight on its flavour, aroma, and stimulatory effects 1. Amongst the many agronomic problems faced by coffee producers, insect pests and plant pathogens are of paramount importance 2. Climate change is also posing an enormous challenge to the continuity of commercial coffee production and to the survival of wild coffee species 3,4. The coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae: Cryphalini), is the most economically important insect pest of coffee due to its cryptic life cycle inside the coffee berry, which makes it quite hard to manage 5. The insect is currently present in most coffee producing countries 5 and worldwide losses are likely over US$500 million, with yearly losses in Brazil alone estimated at US$215-358 million 6. The insect has also been reported to have infested vast areas, e.g., over 715,000 ha in Colombia by 1998 7 and more than 800,000 ha by 2002 8. Even though > 1,800 papers have been published on the coffee berry borer 9 , knowledge about its internal anatomy is restricted to a handful of papers that use dissection techniques 10-14. Insect dissection techniques were first used more than 400 years ago by Aldrovandi 15 and Malpighi 16. Even though dissections have most definitely been useful, resulting in thousands of papers on the internal anatomy of insects, they result in an inevitable distortion of the internal structures and organs. A relatively new technique based on X-rays, known as micro-computed tomography (micro-CT), allows visualization of the insect's internal anatomy in situ, without the need for dissection; results have been validated by comparing them with classical destructive methodologies 17,18. We present a detailed study of all the anatomical st...

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Anatomical study of the coffee berry borer (Hypothenemus hampei) using micro-computed tomography

Alba-Alejandre

Alba‐Tercedor

Vega

2019

Sci Rep

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“…In Hypothenemus hampei (Ferrari) (Coleoptera, Curculionidae: Scolytinae), the posterior midgut has two gastric caeca (Rubio et al, 2008). Bu & Chen (2009) showed that Dendroctonus armandi Tsai and Li (Curculionidae) has approximately 160 gastric caeca in the middle of the midgut. In the anterior portion of the midgut in A. Bipunctata, two circular gastric caeca were seen (Borges et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…The three primary regions of the canal in C. tenebrionis known as foregut, midgut, and hindgut are easily distinguishable and basically similar to those in other Coleopterans. However, in a detailed examination, some differences were seen among the different species of Coleoptera (Sinha, 1958; Gardner, 1986; Vazquez-Arista, 1997; Díaz et al, 1998, 2000, 2003; Rubio et al, 2008; Bu & Chen, 2009; Aldigail et al, 2013; Sarwade & Bhawane, 2013; Singh & Prasad, 2013; Borges et al, 2015; Candan et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…The spine-like structures in the crop surface may be involved in water absorption or may help in the contraction and expansion of the crop as a response during food storage (Rubio et al, 2008). The foregut in C. tenebrionis is composed of the esophagus, crop, and proventriculus as in most other Coleopter species (Diaz et al, 1998; Bu & Chen, 2009; Candan et al, 2019). Crop is absent in Platynotus belli F. (Tenebrionidae) and Adalia bipunctata Linnaeus, 1758 (Coccinellidae) (Sarwade & Bhawane, 2013; Borges et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

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Histomorphology of the Adult Digestive Tract ofCapnodis tenebrionis(L. 1758) (Coleoptera, Buprestidae)

2020

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Anatomical and histological studies of the alimentary canal of adult maize leaf weevil, Tanymecusdilaticollis Gyllenhal, 1834 (Coleoptera: Curculionidae)

Candan

Koçakoğlu

Güllü

et al. 2020

Microscopy Res & Technique

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In this study, ananatomical and histological study was conducted on the alimentary canal of Tanymecusdilaticollis (Coleoptera: Curculionidae), which is an economic polyphagous pest species, to study the relationship between the structure of the alimentary canal and the feeding habit. Therefore, the structure of the alimentary canal of T. dilaticollis was examined using light and electron microscopies. Results have shown that the alimentary canal in T. dilaticollis is consisted of three separate regions as foregut, midgut, and hindgut structurally between the mouth and the anus, which pass from head, thorax, and abdomen. The foregut consists of pharynx, esophagus, crop and proventriculus and in the crop part, expansion is seen compared to other foregut parts. Midgut of T. dilaticollis is the largest part of digestion system. The anterior region of midgut is twofolds wider than the posterior region. The posterior midgut extends tubularly and it is connected to eightgastric caeca. The hindgut of T. dilaticollis consists of fourparts as pylorus, ileum, colon, and rectum. Well‐developed muscle layers are found near the rectum and genital chamber. These results contribute to further studies on the ecology and biological control agents of Coleoptera and to provide a broad comparison of alimentary canal of Coleoptera species.

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The Alimentary Canal of Dendroctonus armandiTsai and Li (Coleoptera: Curculionidae: Scolytinae)

Cited by 11 publications

References 21 publications

Anatomical study of the coffee berry borer (Hypothenemus hampei) using micro-computed tomography

Anatomical study of the coffee berry borer (Hypothenemus hampei) using micro-computed tomography

Histomorphology of the Adult Digestive Tract ofCapnodis tenebrionis(L. 1758) (Coleoptera, Buprestidae)

Anatomical and histological studies of the alimentary canal of adult maize leaf weevil, Tanymecusdilaticollis Gyllenhal, 1834 (Coleoptera: Curculionidae)

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