Ultrastructure of the Digestive Cells in the Midgut of the Predator<i>Brontocoris Tabidus</i> (Heteroptera: Pentatomidae) After Different Feeding Periods on Prey and Plants

Fialho, Maria do Carmo Queiroz; Zanúncio, José Cola; Neves, Clóvis Andrade; Ramalho, Francisco de Souza; Serrão, José Éduardo

doi:10.1603/008.102.0113

Cited by 58 publications

(43 citation statements)

References 38 publications

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“…As stated in many studies [7][8][9][10][11][12], we have observed significantly larger nucleus, nucleolus and the RER cisternae in the cytoplasm of the midgut cells of both species.…”

Section: Discussionsupporting

confidence: 85%

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Investigation of midgut's ultrastructure of Notonecta viridis Decourt, 1909 and Notonecta maculata Fab., 1794 (Hemiptera:Notonectidae)

Suíçmez

Ozmen

2014

Hittite J Sci Eng

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A pparently, since insects have so many species and perceived as harmful organisms, it has brought to mind the idea of avoidance of these organisms and fighting with them. Insects which we accept both harmful as well as beneficial even have important functions in maintaining the ecological balance [1]. Insect body is divided into three parts as head, thorax and abdomen. Head segments are completely fused and the boundaries of segments cannot be distinguished in adults [2].In generally, insects get their nutrients by bitingchewing or sucking but internal parasite larvae get their nutrients through the body surface. Types of diet and food types of insects are as follows feeding with various parts of plants (herbivores), feeding with peat moss (saprophytes), feeding with small insects or other animals, feeding with fungi and bacteria, feeding with feces, carrion and blood, and those feeding with the filtrate.

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“…As stated in many studies [7][8][9][10][11][12], we have observed significantly larger nucleus, nucleolus and the RER cisternae in the cytoplasm of the midgut cells of both species.…”

Section: Discussionsupporting

confidence: 85%

“…The nucleus of N. maculata enterocyte cells are quite large and smooth and cover a large portion of the cell as indicated by Fialho et al, Hung et al [8,15]. Nucleus has a few nucleoli as stated by RostRoszkowska and Undrul [17] and nucleolus are seen significantly in the nucleus as stated by Gül et al [14].…”

Section: Discussionmentioning

confidence: 89%

Investigation of midgut's ultrastructure of Notonecta viridis Decourt, 1909 and Notonecta maculata Fab., 1794 (Hemiptera:Notonectidae)

Suíçmez

Ozmen

2014

Hittite J Sci Eng

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“…The presence of TUNEL-positive cells, and cells with vacuolated cytoplasm and pycnotic nuclei within the intrapapillary lumen may also be indicative of the occurrence of cell death (Kerr et al, 1972;Souza et al, 2007). In the insect gut, both apoptotic and necrotic cell death have been observed (Rost, 2006;Tettamanti et al, 2007;Rost-Roszkowska, 2008a, 2008bFialho et al, 2009;Park et al, 2009), while in some species necrosis accompanies apoptosis (Rost-Roszkowska, 2008b). Cytoplasmic vacuolization is strong evidence of cell necrosis, which is followed by cell rupture and discharge of the contents into the gut lumen (Rost-Roskowska, 2008b).…”

Section: Discussionmentioning

confidence: 99%

Postembryonic Development of Rectal Pads in Bees (Hymenoptera, Apidae)

Santos

Neves

Zanúncio

et al. 2009

The Anatomical Record

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The morphology and development of the digestive tract of insects has been extensively studied, but little attention has been given to the development of the rectal pads. These organs are responsible for absorption of water and salts. In insects where they occur, there are usually six ovoid rectal pads located in the medial-anterior portion of the rectum. The rectal pad has three types of cells: principal, basal, and junctional. The arrangement of these three cell types delimits an intrapapillary lumen. The aim of the current study is to describe the development of the rectal pads during postembryonic development of Melipona quadrifasciata anthidioides and Melipona scutellaris. Specimens were analyzed at the following developmental stages: white-, pink-, brown-, and black-eyed pupae, and adult workers. The development of the rectal pad begins as a thickening of the epithelium in white-eyed pupae at 54 hr. At this stage, there is neither a basal cell layer nor intrapapillary lumen. The basal layers begin to form in the pink-eyed pupa and are completely formed at the end of the development of the brown-eyed pupa. In the brown-eyed pupal stage, the intrapapillary lumen is formed and the junctional cells are positioned and completely differentiated. Necrotic and apoptotic cell death were detected along with cell proliferation in the whole rectum during pupal development, suggesting that the development of the rectal pads involves cell proliferation, death, and differentiation. The rectal pads originate only from the ectoderm. Anat Rec, 292:1602Rec, 292: -1611Rec, 292: , 2009. V V C 2009 Wiley-Liss, Inc.

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“…The P. nigrispinus' midgut wall is formed by a single layer of columnar cells, and the lumen is coated by a thin perimicrovillar membrane, as observed in B. tabidus (Fialho et al, 2009). The morphology of columnar cells varies with the species, feeding status and the midgut area.…”

Section: (A) (B) (C) (D)mentioning

confidence: 93%

Does the Ingestion of Isoxaflutole Herbicide Affect the Midgut and Salivary Glands of Pentatomidae Predators?

et al. 2016

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-Podisus nigrispinus is a generalist predator naturally occurring in agricultural and forestry systems that effectively contributes to the population balance of phytophagous insects, especially defoliating caterpillars. Histological changes were evaluated in the salivary glands and midgut of P. nigrispinus caused by ingestion of systemic herbicide isoxaflutole. These predator females were fed with leaves of eucalyptus plants, Tenebrio molitor pupae or water, contaminated or not by herbicide. Salivary glands and midguts were dissected, processed and analyzed under a light microscope. Activity level and cell morphology of the salivary glands and midgut showed differences among insects fed on plants, contaminated water or pupae. The epithelia of the salivary gland and midgut of individuals which had no contact with the herbicide showed homogeneous cytoplasm, nucleus with predominance of decondensed chromatin and evident nucleoli, intense cell activity features. As for the insects in contact with contaminated food, they presented undeveloped nucleus and condensed chromatin. The luminal contents of the salivary glands in the contaminated insects had become more acidophilus than in insects without poisoning, as well as having heterogeneous and granular secretion, being more evident in the bioassay in which the insects fed on contaminated water. There was a marked morphological change in the midgut cells in contaminated insects. High degree of apoptosis, disorganization and secretory vacuoles in the epithelial cytoplasm were observed. The apical portion of the midgut cells proved undeveloped, irregular and partially destroyed. It is concluded that isoxaflutole causes morphological changes in the digestive system of the predator P. nigrispinus.Keywords: biological control, cell apoptosis, digestive system, morphological change, Podisus nigrispinus. RESUMO -Podisus nigrispinus é um predador generalista de ocorrência natural em sistemas agrícolas e florestais que contribui de forma efetiva para o equilíbrio populacional dos insetos fitófagos, principalmente lagartas desfolhadoras. Avaliaram-se alterações histológicas nas glândulas salivares e no intestino médio de P. nigrispinus causadas após ingestão do herbicida sistêmico isoxaflutole. Fêmeas desse predador foram alimentadas com folhas de plantas de eucalipto, pupas de Tenebrio molitor ou água, contaminados ou não pelo herbicida. As glândulas salivares e o intestino médio foram dissecados, processados e analisados em microscópio de luz. O nível de atividade e a morfologia celular das glândulas salivares e do intestino médio apresentaram diferenças conforme a alimentação. Os epitélios da glândula salivar e do intestino médio de indivíduos que não tiveram contato com o herbicida apresentaram o citoplasma homogêneo, núcleos com predomínio de cromatina descondensada e nucléolos evidentes. Já os insetos que tiveram contato com o herbicida apresentaram

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Ultrastructure of the Digestive Cells in the Midgut of the PredatorBrontocoris Tabidus (Heteroptera: Pentatomidae) After Different Feeding Periods on Prey and Plants

Cited by 58 publications

References 38 publications

Investigation of midgut's ultrastructure of Notonecta viridis Decourt, 1909 and Notonecta maculata Fab., 1794 (Hemiptera:Notonectidae)

Investigation of midgut's ultrastructure of Notonecta viridis Decourt, 1909 and Notonecta maculata Fab., 1794 (Hemiptera:Notonectidae)

Postembryonic Development of Rectal Pads in Bees (Hymenoptera, Apidae)

Does the Ingestion of Isoxaflutole Herbicide Affect the Midgut and Salivary Glands of Pentatomidae Predators?

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