Hyperglycemic responses to cold shock in the freshwater giant prawn, Macrobrachium rosenbergii

Kuo, Ching-Ming; Yang, Yueying

doi:10.1007/s003600050192

Cited by 76 publications

(28 citation statements)

References 11 publications

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“…In the present study, after one month in captivity, glucose concentrations in hemolymph of males and females were not influenced by the environmental change caused by captivity. Hyperglycemia as a secondary stress response has been reported for several species (KUO and YANG, 1999;LORENZON et al, 1997). Glucose hemolymph levels were in line with concentrations observed in other crayfish species (LANARI et al, 2003).…”

Section: Discussionsupporting

confidence: 77%

Vitellogenin and Glucose Concentrations in the Hemolymph of Wild and Confined Crayfish (Austropotamobius Pallipes Lereboullet 1858)

Mettulio

2003

Bull. Fr. Pêche Piscic.

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The white-clawed crayfish (Austropotamobius pallipes) is a native species in the Friuli Venezia Giulia region of North-Eastern Italy. This species is under threat because of habitat modifications and water pollution. Conservation policies are needed and the present study is the first step of a restocking programme. Vitellogenin and glucose concentrations in hemolymph of wild animals and after a period of acclimation were examined. Preliminary results showed no significant differences in high-density lipoprotein subunits in females after acclimation. Glucose hemolymph values are also close to normal levels and similar between males and females. Three types of blood cells were identified in the hemolymph: hyaline cells and small and large granule hemocytes. We conclude that glucose and vitellogenin concentrations in the hemolymph of crayfish were not modified under artificial rearing. Metabolic variables are suitable indicators of crayfish ovarian maturation and environmental and physiological stress. Key-words:Austropotamobius pallipes, vitellogenin, glucose, hemocyte, reproduction. CONCENTRATION DE VITELLOGÉNINE ET DE GLUCOSE DANS L'HÉMOLYMPHE D'ÉCREVISSE AUSTROPOTAMOBIUS PALLIPES LEREBOULLET 1858 SAUVAGES ET EN CAPTIVITÉ RÉSUMÉL'écrevisse à pattes blanches Austropotamobius pallipes est native de la région de Friuli Venezia Giulia dans le Nord-Est de l'Italie. La modification de l'habitat et la pollution mettent en péril cette espèce et des directives pour sa préservation sont désormais nécessaires. Cette étude représente la première étape d'un programme de repeuplement. Bull. Fr. Pêche Piscic. (2003) 370-371 : 185-192 -186 -des écrevisses n'ont pas changé dans les conditions d'élevage artificiel. Les variations métaboliques peuvent être considérées comme des indicateurs de la maturité des ovaires et du stress physiologique ou environnemental.

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Section: Discussionsupporting

confidence: 77%

Vitellogenin and Glucose Concentrations in the Hemolymph of Wild and Confined Crayfish (Austropotamobius Pallipes Lereboullet 1858)

Mettulio

2003

Bull. Fr. Pêche Piscic.

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“…In aquatic animals, hyperglycaemia is a typical stress response to harmful physical and chemical environmental changes, including hypoxia and exposure to air during commercial transport (Spicer et al, 1990;Zou et al, 1996;Kuo and Yang, 1999;Morris and Olivier, 1999;Durand et al, 2000;Speed et al, 2001). Hyperglycaemia has been associated with increased circulating CHH titres (Lorenzon et al, 1997;Lorenzon et al, 2002;Durand et al, 2000;Santos et al, 2001), and has been used as an index to assess CHH activity and environmental stress (Webster, 1996;Bergmann et al, 2001;Toullec et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

Physiological and agonistic behavioural response of Procambarus clarkii to an acoustic stimulus

Celi

Filiciotto

Parrinello

et al. 2012

Journal of Experimental Biology

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SUMMARYThis study examined the effects of an acoustic stimulus on the haemolymph and agonistic behaviour of the red swamp crayfish, Procambarus clarkii. The experiment was conducted in a tank equipped with a video recording system using six groups (three control and three test groups) of five adult crayfish (30 specimens in total). After 1h of habituation, the behaviour of the crayfish was monitored for 2h. During the second hour, the animals in the test groups were exposed to a linear sweep (frequency range 0.1-25kHz; peak amplitude 148dB rms re.1μPa at 12kHz) acoustic stimulus for 30min. Exposure to the noise produced significant variations in haemato-immunological parameters as well as a reduction in agonistic behaviour.

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“…Injection of the eyestalk extract or purified CHH will remedy hypoglycemia in eyestalkless individuals by regulating phosphorylase and glycogen synthase activities on the target tissues, as well as amylase secretion of the midgut gland (Sedlmeier, 1982;Keller and Sedlmeier, 1988). CHH is released in response to internal signals, such as the circadian rhythmicity of hemolymph glucose content (Kallen et al, 1990;Santos and Keller, 1993b), or to external stimuli, such as hypoxia (Santos and Keller, 1993a;Webster, 1996), parasite infection (Stentiford et al, 2001), thermal shock (Santos et al, 1997;Kuo and Yang, 1999), and pollutants (Reddy et al, 1994(Reddy et al, , 1996Lorenzon et al, 1997Lorenzon et al, , 2000. In addition to carbohydrate metabolism, CHH was proved to be involved in lipid metabolism in Chasmagnathus granulata, Carcinus maenas, and Orconectes limosus (Santos et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Cloning of Two Crustacean Hyperglycemic Hormone Isoforms in Freshwater Giant Prawn ( Macrobrachium rosenbergii ): Evidence of Alternative Splicing

Chen

Lin

Kuo

2004

Marine Biotechnology

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A full-length chh cDNA was cloned from the eyestalk of Macrobrachium rosenbergii. The 991-bp cDNA contains an open reading frame of 408 bp that encodes the prepro-CHH. The tissue-specific expression pattern was examined by reverse transcriptase-polymerase chain reaction. Positive signals were detected in the eyestalk, heart, gills, antennal glands, and thoracic ganglion but not in muscle and hepatopancreas. However, two types of products were observed. The nucleotide sequences revealed the existence of 2 chh transcripts, named chh and chh-l, respectively. Direct sequence evidence suggests that these two isoforms come from a Chh gene transcribed in an alternative splicing manner. The Mar-Chh gene consists of 4 exons. The eyestalk transcript (chh) contains exons I, II, and IV, whereas the chh-l transcript in heart, gills, antennal glands, and thoracic ganglion contains all 4 exons. The appearance of exon III in chh-l cDNA changes the sequence content in the latter half of the mature peptide, starting within the codon of the 40 th residue, arginine. The amino acid sequence deduced from exon III matched no homologue in public protein databases, while the 2 cysteine residues in this segment preserved the positional conservation characters of CHH neuropeptide family members. The common organization of Chh genes between palaemonid, brachyuran, and astacus crustaceans suggests that the Chh gene has a 4-exon structure in these species.

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Hyperglycemic responses to cold shock in the freshwater giant prawn, Macrobrachium rosenbergii

Cited by 76 publications

References 11 publications

Vitellogenin and Glucose Concentrations in the Hemolymph of Wild and Confined Crayfish (Austropotamobius Pallipes Lereboullet 1858)

Vitellogenin and Glucose Concentrations in the Hemolymph of Wild and Confined Crayfish (Austropotamobius Pallipes Lereboullet 1858)

Physiological and agonistic behavioural response of Procambarus clarkii to an acoustic stimulus

Cloning of Two Crustacean Hyperglycemic Hormone Isoforms in Freshwater Giant Prawn ( Macrobrachium rosenbergii ): Evidence of Alternative Splicing

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