On the isolation and characterisation of a crustacean hyperglycaemic hormone in the eyestalk of the shrimp Penaeus indicus

Subramoniam, T.; Reichwein, Barbara; Dircksen, Heinrich; Keller, Rainer

doi:10.1016/s0044-8486(98)00209-9

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…The presence of immunoreactivity in dendritic collateral branches close to the XO cell bodies observed in juveniles and adults of A. leptodactylus (this study) has also been reported for CHH in different crustacean groups (Dircksen et al 1988;Subramoniam et al 1998;Soyez et al 2000) and for MIH in different crab species (Dircksen et al 1988;Watson et al 2001;Lee and Watson 2002). These dendritic branches are classically considered as important regulatory input areas.…”

Section: Discussionsupporting

confidence: 82%

“…CHH was visualized in some cell bodies of the medulla terminalis X-organ and in the bundle of their axons, which courses distally across the medulla terminalis and terminates in the SG. The organization of the sites of production, transport, storage, and release of CHH material is comparable in various groups of crustaceans, such as the Penaeidae (Laverdure et al 1994;Subramoniam et al 1998;Shih et al 2003), Caridea (Gorgels-Kallen et al 1982Van Herp et al 1984;Sithigorngul et al 1999), Palinuridae (Gorgels-Kallen et al 1982Marco and Gäde 1999), Astacidae (Gorgels-Kallen et al 1982;Soyez et al 1998), andBrachyura (Jaros andKeller 1979;Dircksen et al 1988).…”

Section: Discussionmentioning

confidence: 99%

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Occurrence of l- and d-Crustacean Hyperglycemic Hormone Isoforms in the Eyestalk X-Organ/Sinus Gland Complex During the Ontogeny of the Crayfish Astacus leptodactylus

Serrano¹,

Grousset²,

Charmantier³

et al. 2004

J Histochem Cytochem.

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We studied the ontogeny of the eyestalk structure and of the L-CHH and d-Phe3-CHH synthesis in the X-organ/sinus gland (XO/SG) complex by light microscopy and immunocytochemistry in the freshwater crustacean Astacus leptodactylus. The optic ganglia start to differentiate in embryos at EI 190 microm (EI: eye index; close to 410 microm at hatching). At EI 270 microm, the three medullae (externa, interna, and terminalis) and the lamina ganglionaris are present and are organized as in the adult eyestalk. The L-CHH was localized in perikarya of neuroendocrine cells, in their tracts, and in SG from the metanauplius stage to the adult. The d-Phe3-CHH was visualized in XO perikarya, in their tracts and in SG of embryos from EI 350 microm and in all later studied stages. Co-localization of both CHH stereoisomers always occurred in the d-Phe3-CHH-producing cells. These results show that the synthesis of CHH enantiomers starts during the embryonic life in A. leptodactylus, and that the d-isomer is synthesized later than its L-counterpart. We discuss the post-translational isomerization as a way to generate hormonal diversity and the putative relation between d-Phe3-CHH synthesis and the ability to osmoregulate, occurring late during the embryonic life of Astacus leptodactylus.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Occurrence of l- and d-Crustacean Hyperglycemic Hormone Isoforms in the Eyestalk X-Organ/Sinus Gland Complex During the Ontogeny of the Crayfish Astacus leptodactylus

Serrano¹,

Grousset²,

Charmantier³

et al. 2004

J Histochem Cytochem.

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“…They amino acid sequence of hyperglycaemic hormone was first determined from Carcinus maenas [5]. Later, several scientists determined amino acid sequence of CHH in other crustaceans [6][7][8][9][10][11][12]. The nucleotide sequences of cloned CHH cDNA have been determined in the lobster Homarus americanus [13,14] and in the prawns Penaeus japonicus [15] and Metapenaeus enois [16,17].…”

Section: Introductionmentioning

confidence: 99%

Role of methionine-enkephalin on the regulation of carbohydrate metabolism in the rice field crab Oziotelphusa senex senex

Kishori

Reddy

2005

Comptes Rendus. Biologies

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In the present study, the role of eyestalks and involvement of methionine-enkephalin in the regulation of haemolymph sugar level was studied. Bilateral eyestalk ablation significantly decreased the haemolymph sugar levels, whereas injection of eyestalk extract into ablated crabs significantly increased the haemolymph sugar levels. Total carbohydrate (TCHO) and glycogen levels were significantly increased in hepatopancreas and muscle of eyestalk-ablated crabs, with a decrease in phosphorylase activity. Injection of eyestalk extract into ablated crabs resulted in partial/complete reversal of these changes. Injection of methionine-enkephalin into intact crabs significantly increased the haemolymph sugar level in a dose-dependent manner. Total tissue carbohydrate and glycogen levels were significantly decreased, with an increase in phosphorylase activity in hepatopancreas and muscle tissues of intact crabs after methionine-enkephalin injection. Methionine-enkephalin injection did not cause any changes in haemolymph sugar, tissue total carbohydrate and glycogen levels and activity levels of phosphorylase in eyestalk-ablated crabs. These results suggest that the eyestalks are the main source of hyperglycaemic harmone and methionine-enkephalin induces hyperglycaemia through eyestalks.

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Hyperglycemic hormone in fresh water prawn Macrobrachium rosenbergii: Purification from eyestalk nervous tissue and quantification by ELISA in hemolymph following various stresses

Reddy

Sainath

2009

Aquaculture

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On the isolation and characterisation of a crustacean hyperglycaemic hormone in the eyestalk of the shrimp Penaeus indicus

Cited by 5 publications

References 24 publications

Occurrence of l- and d-Crustacean Hyperglycemic Hormone Isoforms in the Eyestalk X-Organ/Sinus Gland Complex During the Ontogeny of the Crayfish Astacus leptodactylus

Occurrence of l- and d-Crustacean Hyperglycemic Hormone Isoforms in the Eyestalk X-Organ/Sinus Gland Complex During the Ontogeny of the Crayfish Astacus leptodactylus

Role of methionine-enkephalin on the regulation of carbohydrate metabolism in the rice field crab Oziotelphusa senex senex

Hyperglycemic hormone in fresh water prawn Macrobrachium rosenbergii: Purification from eyestalk nervous tissue and quantification by ELISA in hemolymph following various stresses

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