Studies on the digestive system of the crab Menippe rumphii (Fabricius) (Crustacea:Brachyura)

Babu, D. Erri; Shyamasundari, K.; Rao, K. H.

doi:10.1016/0022-0981(82)90128-9

Cited by 25 publications

(7 citation statements)

References 16 publications

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“…The computed tomography confirmed the overall disposition of the MGl in the cephalothorax. A similar morphology has been reported in other brachyuran species; e.g., the eriphiid Menippe rumphii (Erri Babu et al, 1982), the gecarcinucid Spiralothelphusa hydrodroma (as Parathelphusa hydrodromus) (Reddy, 1937), the portunid Scylla serrata (Barker and Gibson, 1978), the ocypodids Ocypode platytarsis (Ramadevi et al, 1990) and Uca uruguayensis (Cuartas and Petriella, 2002), and the varunids Neohelice granulata and Cyrtograpsus angulatus (Cuartas and Petriella, 2002).…”

Section: Discussionsupporting

confidence: 74%

Morphology and ultrastructure of the midgut gland ("hepatopancreas") during ontogeny in the common spider crab Maja brachydactyla Balss, 1922 (Brachyura, Majidae)

Castejón

Rotllant

Alba‐Tercedor

et al. 2019

Arthropod Structure & Development

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We studied the anatomy and cytology of the midgut gland (MGl) of the common spider crab Maja brachydactyla Balss 1922 at several life stages (zoea, megalopa, first juvenile, and adult) using dissection, histology, electron microscopy, computed tomography, and micro-computed tomography (micro-CT). In newly hatched larvae, 14 blind-end tubules formed the MGl. The length of the tubules increases during the larval development. In the late megalopa, the number of tubules also increases. In adults, 35,000 to 60,000 blind-end tubules comprise the MGl. In all life stages, a square-net network of muscle fibers surround the tubules. We describe five cell types in the MGl in all larval stages, which have a similar location, histology, and ultrastructure in larvae and adults: embryonary (E-) cells, resorptive (R-) cells, fibrillar (F-) cells, blister-like (B-) cells, and midget (M-) cells. Major difference between larval and adult cells is the larger size of the adult cells. Microapocrine secretion occurs from the microvilli of the B-cells. No ultrastructural changes were observed, which suggests that the function of each cell type might be similar in all life stages. The role of each epithelial cell type in larvae and adults is discussed.

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Section: Discussionsupporting

confidence: 74%

Morphology and ultrastructure of the midgut gland ("hepatopancreas") during ontogeny in the common spider crab Maja brachydactyla Balss, 1922 (Brachyura, Majidae)

Castejón

Rotllant

Alba‐Tercedor

et al. 2019

Arthropod Structure & Development

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“…The wall of the hindgut consists of the tunica mucosa, tunica submucosa, tunica muscularis and tunica serosa. The well-developed tunica serosa contained loose connective tissue, adipose tissue, blood sinuses and nerves (Babu et al 1982 ). Interestingly, a large number of eosinophilic cells–reserve inclusion cells were also found in the tunica serosa in the control (Fig.…”

Section: Resultsmentioning

confidence: 99%

Effect of dietary histamine supplementation on growth, digestive enzyme activities and morphology of intestine and hepatopancreas in the Chinese mitten crab Eriocheir sinensis

et al. 2016

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A 28-days feeding experiment was conducted to investigate the effect of histamine on digestive physiology of the Chinese mitten crab, Eriocheir sinensis. Four experimental diets were supplemented with histamine at 0, 1, 2, 4 g/kg. Histamine supplementation had no effect on growth. The activities of digestive enzyme decreased significantly at first (days 7 and 14) (p < 0.05) and then increased or finally slightly recovered in the hepatopancreas and intestinal tract on the 28th day. Tryptase and amylase activities were inhibited significantly in each histamine-treated group on day 7 as compared to the control (p < 0.05). On day 7, 14 and 28, tryptase mRNA relative expression in the histamine treatments correlated positively with the histamine concentration (p < 0.05). Histopathologic analyses showed serious alterations in hepatopancreas, moderate alterations in the hindgut and intestinal bulb, and no alterations in the midgut. In hepatopancreas, low levels (1 g/kg) of histamine caused an increase in the number of B-cells. High levels (4 g/kg) of histamine increased the number of R-cells, which were also highly vacuolized. In extreme cases, the basal lamina was detached from the tubule. In the intestinal bulb and hindgut, high levels of histamine (4 g/kg) decreased the density of reserve inclusion cells. Thus, this indicated that histamine had dose-dependent effect on the activity of digestive enzymes and the morphology of the intestine and hepatopancreas.

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“…To facilitate food expulsion, it appears necessary to tighten the passage between stomach and midgut to avoid pressing the stomach content into the gut. Many crustaceans, like the brachyuran crabs Scylla serrata and Menippe rumphii, possess a cardio-pyloric valve separating the cardiac and pyloric regions of the stomach allowing the passage of only very small particles (Barker and Gibson, 1978;Erri Babu et al, 1982). Additional comparative studies on crustaceans, which are capable of regurgitation (Table 1) and those which are not, like the Norway lobster, N. norvegicus, are required to understand the behavior and physiological mechanism of regurgitation.…”

Section: Discussionmentioning

confidence: 99%

How to get rid of ingested microplastic fibers? A straightforward approach of the Atlantic ditch shrimp Palaemon varians

Saborowski

Paulischkis

Gutow

2019

Environmental Pollution

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Microplastic fibers represent a significant share of the global marine micrcroplastic pollution, particularly in coastal areas. In controlled laboratory experiments, we offered fluorescent microplastic fibers (40-4400 μm lengths, median 150 μm) and spherical microplastic beads (9.9 μm Ø) together with commercial fish food to the Atlantic ditch shrimp Palaemonetes varians. The shrimps ingested fibers and beads along with the food. Upon ingestion, the beads and the shortest fibers (up to 100 μm) passed from the stomach into the gut and were egested within the fecal strings. The longer fibers first remained in the stomach but were regurgitated, i.e. extruded through the esophagus, within 12-14 h. Regurgitation is an evolutionary adaptation of particular crustacean species and other invertebrates to remove large and indigestible food particles from the stomach. Accordingly, the process of regurgitation attained a new task nowadays, i.e. the elimination of anthropogenic filamentous microplastic debris from the stomach to avoid harm. This behavioral feature may represent a selective advantage in view of the continuously increasing environmental plastic pollution.

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Studies on the digestive system of the crab Menippe rumphii (Fabricius) (Crustacea:Brachyura)

Cited by 25 publications

References 16 publications

Morphology and ultrastructure of the midgut gland ("hepatopancreas") during ontogeny in the common spider crab Maja brachydactyla Balss, 1922 (Brachyura, Majidae)

Morphology and ultrastructure of the midgut gland ("hepatopancreas") during ontogeny in the common spider crab Maja brachydactyla Balss, 1922 (Brachyura, Majidae)

Effect of dietary histamine supplementation on growth, digestive enzyme activities and morphology of intestine and hepatopancreas in the Chinese mitten crab Eriocheir sinensis

How to get rid of ingested microplastic fibers? A straightforward approach of the Atlantic ditch shrimp Palaemon varians

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