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Singha S, Kumar S, Dutta R, Patowary AN, Phukan B, Bhagawati K, Sharma D, Bordoloi B, Sarma DK. Can Puntius sophore breed artificially under controlled conditions? Tracing the life cycle of Puntius sophore through artificial captive breeding. Anim Reprod Sci 2024; 268:107577. [PMID: 39142255 DOI: 10.1016/j.anireprosci.2024.107577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 08/09/2024] [Accepted: 08/11/2024] [Indexed: 08/16/2024]
Abstract
The development of new strategies for breeding indigenous fish species is of utmost importance in the wake of unfavorable weather events, as a result of climate change. Therefore, an attempt has been made to achieve artificial breeding of an indigenous barb, Puntius sophore. Two groups of juvenile fish, collected from the wild, were reared till sexual maturation. One group was reared under a natural photothermal regime and the other was reared under strictly controlled conditions with photothermal stimulation till sexual maturation and subsequently, hormonal stimulation with OVAFISH was also done for inducement of spawning. The spawning efficiencies were analyzed and the results in terms of latency period (6.74 Hrs), ovulation rate (92.2 %), fertilization rate (90.6 %), hatching rate (89.9 %), and spawning efficiency coefficient (Se) (0.828) were found better in Puntius sophore reared under the indoor controlled condition with photothermal manipulation and hormone administration compared to the group of fish which was reared under a natural photothermal with a hormonal stimulation. The results of this study demonstrate the captive artificial breeding of Puntius sophore spawners reared under a natural photothermal regime and controlled photothermal regime in indoor conditions. The outcome of the present study can be used for developing key strategies for a climate smart aquaculture for fish farmers.
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Affiliation(s)
- Sanayaima Singha
- College of Fisheries, Assam Agricultural University, Raha, Nagaon, Assam 782103, India
| | - Shivendra Kumar
- Department of Aquaculture, College of Fisheries, Dr. Rajendra Prasad Central Agricultural University, Dholi, Muzaffarpur, Bihar 843121, India
| | - Rajdeep Dutta
- College of Fisheries, Assam Agricultural University, Raha, Nagaon, Assam 782103, India
| | | | - Bipul Phukan
- College of Fisheries, Assam Agricultural University, Raha, Nagaon, Assam 782103, India
| | - Kaustubh Bhagawati
- College of Fisheries, Assam Agricultural University, Raha, Nagaon, Assam 782103, India
| | - Darshana Sharma
- College of Fisheries, Assam Agricultural University, Raha, Nagaon, Assam 782103, India
| | - Biswajyoti Bordoloi
- College of Fisheries, Assam Agricultural University, Raha, Nagaon, Assam 782103, India; Fisheries Research Centre, Assam Agricultural University, Jorhat, Assam 785013, India
| | - Dipak Kumar Sarma
- College of Fisheries, Assam Agricultural University, Raha, Nagaon, Assam 782103, India.
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Kahar R, Ahmad N, Arai T. Year-round spawning of three tropical Cypriniformes fishes in Southeast Asia. Sci Rep 2023; 13:8971. [PMID: 37268732 DOI: 10.1038/s41598-023-36065-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 05/29/2023] [Indexed: 06/04/2023] Open
Abstract
Present knowledge on spawning seasonality of freshwater fishes in tropical Asia and their relationship with environmental factors remains limited. Three Southeast Asian Cypriniformes fishes, Lobocheilos ovalis, Rasbora argyrotaenia and Tor Tambra, found in rainforest streams in Brunei Darussalam were studied on a monthly basis for a period of 2 years. To assess spawning characteristics, seasonality, gonadosomatic index and reproductive phases were examined from 621 L. ovalis, 507 R. argyrotaenia and 138 T. tambra. This study also examined environmental factors such as rainfall, air temperature, photoperiod and lunar illumination that may influence the timing of spawning of these species. We found that L. ovalis, R. argyrotaenia and T. tambra were reproductively active throughout the year but did not find that spawning in these species were associated with any of the investigated environmental factors. Our study showed that the non-seasonal reproductive ecology found in the tropical cypriniform species is distinctly different from that of temperate cypriniforms, which are known to follow spawning seasonality, suggesting an evolutionary adaptation to ensure their survival in an unstable environment. The reproductive strategy and ecological responses found in the tropical cypriniforms might be shifted in response to climate change scenarios in the future.
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Affiliation(s)
- Rafhiah Kahar
- Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam.
| | - Norhayati Ahmad
- Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Takaomi Arai
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam.
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Moniruzzaman M, Saha NC. Consequences of sodium dodecyl sulfate exposure on the antioxidant status and steroidogenesis in fish gonad. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:19247-19259. [PMID: 33394437 DOI: 10.1007/s11356-020-12151-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
A native Indian catfish (Heteropneustes fossilis) and an Indian major carp (Cirrhinus cirrhosus) were treated with sodium dodecyl sulfate (SDS) to elucidate its consequences on antioxidant status and sex steroid synthesis. Fishes were exposed to 1/10th of LC50 of SDS for 30 days. Different enzymatic and non-enzymatic antioxidants, major sex steroids, steroidogenic enzymes, gonadosomatic index (GSI), and serum cortisol level were measured in both male and female fishes. Levels of enzymatic and non-enzymatic antioxidants altered significantly in both the fish species. Steroid hormones in both male and female fishes decreased significantly in the SDS-treated group. Profiles of steroidogenic enzymes (hydroxysteroid dehydrogenase; 3β-HSD and 17β-HSD) show significant decrease in the SDS treatment group in both carp and catfish than that of the control group irrespective of sexes. GSI also decreases significantly in the SDS-treated group when compared with the control group in spawning phase of carp and catfish irrespective of sexes. Serum cortisol level was increased significantly after SDS exposure. Higher level of cortisol was noted in the spawning phase than that of pre-spawning phase. Current study proves that SDS could interrupt the normal steroidogenesis process in fish, leading to impaired sex hormone production. Detrimental effect of SDS was noted to be more prominent on female steroidogenesis than that of male fish. A species or season-specific variation in steroidogenesis was also observed which indicates that SDS-induced toxicity depends on the sexual status of the specific fish species.
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Affiliation(s)
| | - Nimai Chandra Saha
- Fisheries and Ecotoxicology Research Laboratory, Vice Chancellor's Research Group, Department of Zoology, The University of Burdwan, Purba bardhaman, Burdwan, West Bengal, 713104, India.
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Yasmin F, Sutradhar S, Das P, Mukherjee S. Gut melatonin: A potent candidate in the diversified journey of melatonin research. Gen Comp Endocrinol 2021; 303:113693. [PMID: 33309697 DOI: 10.1016/j.ygcen.2020.113693] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 11/24/2020] [Accepted: 12/04/2020] [Indexed: 02/08/2023]
Abstract
After being discovered from the bovine pineal gland by Aaron Lerner and co-workers in the year 1958, various distinguished researchers have reported melatonin (5-methoxy-N-acetyl-tryptamine) from several extra-pineal sources, including the gastrointestinal tract (GIT). In the year 1974, Raikhlin and Kvetnoy first detected this molecule in the gastrointestinal tissue. Later, within the last 45 years, many renowned investigators found that the GIT is a rich source of melatonin, in addition to the pineal gland. In the carp gut, the estimation of Arylalkylamine-N-acetyltransferase (AANAT) mRNA/protein levels, which is the rate-determining enzyme for melatonin biosynthesis in the pineal gland, confirmed the endogenous synthesis of melatonin. The remarkable feature of the pineal gland melatonin is its rhythmic synthesis with a peak at dark-phase and lowest at light-phase in synchronization with seasonal environmental light-dark (LD) cycle. Recent studies on carp demonstrated that the melatonin concentrations and the AANAT protein intensities in different gut segments underwent significant daily fluctuations. However, compared to the melatonin rhythm in the pineal gland, the melatonin profiles in gut tissue displayed daily rhythm in parallel with the feeding cycle of the carp, irrespective of LD conditions of the environment. Notably, in carp, the temporal pattern of the gut melatoninergic system found to vary with the environmental non-photic signal(s), such as food entrainment factors (viz. availability of food, timing of food supply, number(s) of feed per day, quality of food) those act as the most dependable synchronizer(s) in daily rhythm characteristics of gut melatonin and AANAT. Thereby in this review, it appears meaningful to highlight the existing data on the mode of synthesis of melatonin in cells of the digestive tract, and most importantly, the regulation of its synthesis. Finally, in comparison with the dynamic actions of melatonin derived from the pineal gland, this review will lead to underline the role of gut-derived melatonin in a variety of physiological functions.
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Affiliation(s)
- Farha Yasmin
- Fish Biology and Endocrinology Laboratory, Department of Zoology, University of North Bengal, Darjeeling-734013, India
| | - Sona Sutradhar
- Fish Biology and Endocrinology Laboratory, Department of Zoology, University of North Bengal, Darjeeling-734013, India
| | - Poulami Das
- Fish Biology and Endocrinology Laboratory, Department of Zoology, University of North Bengal, Darjeeling-734013, India
| | - Sourav Mukherjee
- Fish Biology and Endocrinology Laboratory, Department of Zoology, University of North Bengal, Darjeeling-734013, India.
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5
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Ben Ammar I, Milla S, Ledoré Y, Teletchea F, Fontaine P. Constant long photoperiod inhibits the onset of the reproductive cycle in roach females and males. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:89-102. [PMID: 31485807 DOI: 10.1007/s10695-019-00698-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 08/13/2019] [Indexed: 06/10/2023]
Abstract
Photoperiod and temperature are commonly accepted as the determinant factors for the control of the reproductive cycle in freshwater fishes. However, this determining effect is dependent on fish species. While applying a constant long photoperiod has an inhibitory effect in some species, the same photoperiodic manipulation has a stimulating effect in others. In cyprinids, a decrease in temperature or photoperiod can induce the gonad recrudescence. However, in roach Rutilus rutilus an early spring spawner cyprinid, there is little knowledge about the cueing role of each environmental factor. The aim of this work was to study the effect of a constant long photoperiod on the gametogenesis in roach. Fish were kept under either naturally simulated photoperiod or artificial constant long photoperiod and sampled at three times: at the beginning of photoperiod decrease, at the beginning of temperature decrease, and at the end of temperature decrease. Morphological parameters (gonado-somatic, hepato-somatic, and viscera-somatic indexes), plasma sexual steroids, and proportion of gametogenesis stages were estimated at each sampling time. The results showed that a constant, long photoperiod exerted inhibitory effects on gametogenesis advancement in both females and males that could stem from decrease of sex steroid production. Roach displayed a similar response to photoperiodic manipulations to other early spring spawners like percids, such as European perch, yellow perch and pikeperch. These results clearly showed the cueing role of the photoperiod in the induction of the reproductive cycle in roach.
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Affiliation(s)
- Imen Ben Ammar
- Equipe Domestication en Aquaculture Continentale, UR AFPA-INRA, Faculté des Sciences, Université de Lorraine, Entrée 1B, 5ème étage, Boulevard des Aiguillettes BP 236, 54506, Vandœuvre-lès-Nancy, France.
- Unité de Recherche en Biologie environnementale et évolutive, URBE, Université de Namur, 61, rue de Bruxelles, 5000, Namur, Belgique.
| | - Sylvain Milla
- Equipe Domestication en Aquaculture Continentale, UR AFPA-INRA, Faculté des Sciences, Université de Lorraine, Entrée 1B, 5ème étage, Boulevard des Aiguillettes BP 236, 54506, Vandœuvre-lès-Nancy, France
| | - Yannick Ledoré
- Equipe Domestication en Aquaculture Continentale, UR AFPA-INRA, Faculté des Sciences, Université de Lorraine, Entrée 1B, 5ème étage, Boulevard des Aiguillettes BP 236, 54506, Vandœuvre-lès-Nancy, France
| | - Fabrice Teletchea
- Equipe Domestication en Aquaculture Continentale, UR AFPA-INRA, Faculté des Sciences, Université de Lorraine, Entrée 1B, 5ème étage, Boulevard des Aiguillettes BP 236, 54506, Vandœuvre-lès-Nancy, France
| | - Pascal Fontaine
- Equipe Domestication en Aquaculture Continentale, UR AFPA-INRA, Faculté des Sciences, Université de Lorraine, Entrée 1B, 5ème étage, Boulevard des Aiguillettes BP 236, 54506, Vandœuvre-lès-Nancy, France.
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6
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Moniruzzaman M, Mukherjee J, Das D, Chakraborty SB. Impact of physical aquatic parameters on the annual rhythmicity of sex steroid and cortisol and their interrelationship in two distantly related fish population. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2016.1275399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Joyita Mukherjee
- Ecological Modelling Laboratory, Department of Zoology, Visva-Bharati University, Santiniketan, India
| | - Debjit Das
- Department of Zoology, University of Calcutta, Kolkata, India
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Maitra SK, Pal PK. Melatonin rhythms in the pineal and non-pineal tissues and their physiological implications in subtropical fish. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2017.1345453] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Palash Kumar Pal
- Department of Zoology, Visva-Bharati University, Santiniketan, India
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8
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Rajiv C, Sanjita Devi H, Mondal G, Devi SD, Khan ZA, Yumnamcha T, Bharali R, Chattoraj A. Daily and Seasonal Expression Profile of Serum Melatonin and Its Biosynthesizing Enzyme Genes (tph1, aanat1, aanat2, andhiomt) in Pineal Organ and Retina: A Study under Natural Environmental Conditions in a Tropical Carp,Catla catla. ACTA ACUST UNITED AC 2017; 325:688-700. [DOI: 10.1002/jez.2061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 01/02/2017] [Accepted: 01/10/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Chongtham Rajiv
- Biological Rhythm Laboratory; Animal Resources Programme; Department of Biotechnology; Institute of Bioresources and Sustainable Development; Imphal India
| | - Haobijam Sanjita Devi
- Biological Rhythm Laboratory; Animal Resources Programme; Department of Biotechnology; Institute of Bioresources and Sustainable Development; Imphal India
| | - Gopinath Mondal
- Biological Rhythm Laboratory; Animal Resources Programme; Department of Biotechnology; Institute of Bioresources and Sustainable Development; Imphal India
| | - Sijagurumayum Dharmajyoti Devi
- Biological Rhythm Laboratory; Animal Resources Programme; Department of Biotechnology; Institute of Bioresources and Sustainable Development; Imphal India
| | - Zeeshan Ahmad Khan
- Biological Rhythm Laboratory; Animal Resources Programme; Department of Biotechnology; Institute of Bioresources and Sustainable Development; Imphal India
| | - Thangal Yumnamcha
- Biological Rhythm Laboratory; Animal Resources Programme; Department of Biotechnology; Institute of Bioresources and Sustainable Development; Imphal India
| | | | - Asamanja Chattoraj
- Biological Rhythm Laboratory; Animal Resources Programme; Department of Biotechnology; Institute of Bioresources and Sustainable Development; Imphal India
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9
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Sanjita Devi H, Rajiv C, Mondal G, Khan ZA, Dharmajyoti Devi S, Yumnamcha T, Bharali R, Chattoraj A. Melatonin bio-synthesizing enzyme genes (Tph1, Aanat1, Aanat2, and Hiomt) and their temporal pattern of expression in brain and gut of a tropical carp in natural environmental conditions. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/23312025.2016.1230337] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Haobijam Sanjita Devi
- Biological Rhythm Laboratory, Animal Resources Programme, Department of Biotechnology, Institute of Bioresources and Sustainable Development, Government of India, Takyelpat, Imphal 795 001, Manipur, India
| | - Chongtham Rajiv
- Biological Rhythm Laboratory, Animal Resources Programme, Department of Biotechnology, Institute of Bioresources and Sustainable Development, Government of India, Takyelpat, Imphal 795 001, Manipur, India
| | - Gopinath Mondal
- Biological Rhythm Laboratory, Animal Resources Programme, Department of Biotechnology, Institute of Bioresources and Sustainable Development, Government of India, Takyelpat, Imphal 795 001, Manipur, India
| | - Zeeshan Ahmad Khan
- Biological Rhythm Laboratory, Animal Resources Programme, Department of Biotechnology, Institute of Bioresources and Sustainable Development, Government of India, Takyelpat, Imphal 795 001, Manipur, India
| | - Sijagurumayum Dharmajyoti Devi
- Biological Rhythm Laboratory, Animal Resources Programme, Department of Biotechnology, Institute of Bioresources and Sustainable Development, Government of India, Takyelpat, Imphal 795 001, Manipur, India
| | - Thangal Yumnamcha
- Biological Rhythm Laboratory, Animal Resources Programme, Department of Biotechnology, Institute of Bioresources and Sustainable Development, Government of India, Takyelpat, Imphal 795 001, Manipur, India
| | - Rupjyoti Bharali
- Department of Biotechnology, Gauhati University, Guwahati 781 014, Assam, India
| | - Asamanja Chattoraj
- Biological Rhythm Laboratory, Animal Resources Programme, Department of Biotechnology, Institute of Bioresources and Sustainable Development, Government of India, Takyelpat, Imphal 795 001, Manipur, India
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Ali JM, Kolok AS. On-site, serial exposure of female fathead minnows to the Elkhorn River, Nebraska, USA, spring agrichemical pulse. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:1354-1361. [PMID: 25663000 DOI: 10.1002/etc.2928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 01/24/2015] [Accepted: 02/04/2015] [Indexed: 06/04/2023]
Abstract
In the Midwestern United States, waterways such as the Elkhorn River experience an annual spring pulse of runoff that carries sediments, nutrients, and organic compounds downstream. The objective of the present study was to elucidate relationships between contaminant load in Elkhorn River water and biological impacts on female fathead minnows throughout the entire spring agrichemical pulse. Fish were maintained in on-site outdoor microcosms at the Elkhorn River Research Station. The start of the spring pulse was determined using commercially available atrazine strips that detected atrazine when concentrations exceeded 3 ppb. Once the pulse began, 5 serial 7-d exposures were conducted. Concentrations of atrazine, its metabolites, and 5 other herbicides were quantified using gas chromatography-mass spectrometry. Agrichemicals peaked during the first and second weeks of the pulse, with a smaller peak occurring during week 4, but the peaks were not directly associated with runoff events (as estimated from river discharge). Elevated agrichemical concentrations were associated with biological impacts, but not solely responsible. In the present study, differences in the abiotic environment were found to play a significant role in the defeminization of exposed female fathead minnows.
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Affiliation(s)
- Jonathan M Ali
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Alan S Kolok
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
- Nebraska Watershed Network, Department of Biology, University of Nebraska at Omaha, Omaha, Nebraska, USA
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Maitra SK, Chattoraj A, Mukherjee S, Moniruzzaman M. Melatonin: a potent candidate in the regulation of fish oocyte growth and maturation. Gen Comp Endocrinol 2013; 181:215-22. [PMID: 23046602 DOI: 10.1016/j.ygcen.2012.09.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 09/06/2012] [Accepted: 09/10/2012] [Indexed: 11/17/2022]
Abstract
Recent studies on several fish species, especially carp, implicated pineal hormone melatonin (N-acetyl-5-methoxytryptamine) as a potent candidate in the regulatory mechanism of seasonal reproduction. Under natural conditions, the temporal pattern of serum melatonin varied with daily light-dark cycle and the reproductive status of the fish as well. Carefully controlled study revealed that exogenous administration of melatonin may result in stimulation or inhibition or no influences at all on the gonadal functions depending on the reproductive status of fish. Cross-talk between the melatonin and ovarian steroid has been evident from in vitro study, in which melatonin accelerated the action of 17α,20β-dihydroxy-4-pregnen-3-one or maturation inducing hormone (MIH) on meiotic cell cycle resumption in carp oocytes by formation of maturation promoting factor (MPF) - a complex of two proteins, cyclin B and cyclin dependant kinase Cdk1. While several lines of evidence suggest melatonin effects on hypothalamo-hypophyseal-gonadal axis, localization and dynamics of a 37-kDa melatonin receptor protein in carp oocytes argued in favor of extra-hypothalamic direct action of melatonin on fish reproduction. A recent study in carp indicated that influences of an identical regimen of photoperiods in different parts of annual cycle on ovarian functions vary in relation to the profiles of serum melatonin, but not to any rhythm parameters of MT1 or MT2 receptors on the gonad or brain. The purpose of this short review is to bring together the current knowledge on the biological effects of melatonin on fish reproduction mainly focusing the recent findings on carp.
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Affiliation(s)
- Saumen Kumar Maitra
- Department of Zoology, Visva-Bharati University, Santiniketan 731 235, India.
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Moniruzzaman M, Maitra SK. Influence of Altered Photoperiods on Serum Melatonin and Its Receptors (MT1 and MT2) in the Brain, Retina, and Ovary in CarpCatla catla. Chronobiol Int 2012; 29:175-88. [DOI: 10.3109/07420528.2011.645753] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Wambiji N, Park YJ, Kim SJ, Hur SP, Takeuchi Y, Takemura A. Expression of type II iodothyronine deiodinase gene in the brain of a tropical spinefoot, Siganus guttatus. Comp Biochem Physiol A Mol Integr Physiol 2011; 160:447-52. [DOI: 10.1016/j.cbpa.2011.03.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2010] [Revised: 03/28/2011] [Accepted: 03/28/2011] [Indexed: 11/15/2022]
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Seth M, Maitra SK. Importance of light in temporal organization of photoreceptor proteins and melatonin-producing system in the pineal of carp Catla catla. Chronobiol Int 2010; 27:463-86. [PMID: 20524796 DOI: 10.3109/07420521003666416] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The importance of light in the temporal organization of photoreceptor proteins and melatonin-producing system has been investigated for the first time in the pineal of a tropical fish. In this study, an identical experimental paradigm was followed during the four distinct phases of an annual cycle in adult carps (Catla catla) maintained either under natural photoperiod (NP) or continuous illumination (LL) or darkness (DD) for 30 days. At the end of each experiment, the pineal from fish in each experimental group was collected either at 06:00, 12:00, 18:00, or 24:00 in a daily cycle and assessed by Western blot analysis for pineal rod-like opsin, alpha-transducin, and AANAT. The same animals were also used for measurement of serum melatonin levels, and the serum as well as intra-pineal Ca(++) levels at each timepoint. The study revealed a daily rhythmicity with a peak at 12:00 h and nadir at 24:00 h in the band intensity of pineal rod-like opsin and alpha-transducin in NP fish, while the band intensities of these photo-pigment proteins remained high under LL and low under DD, irrespective of clock hour during the 24 h cycle. The band intensity of pineal AANAT, levels of serum melatonin, and both serum Ca(++) and intra-pineal Ca(++) were maximum at 24:00 h and minimum at 12:00h in NP fish, and they were significantly lower under LL and higher under DD at each point of study. The results showed loss of daily rhythm in each studied variable in both LL and DD carps, suggesting that their circadian organization is dependent on the external light-dark conditions, rather than an endogenous circadian oscillator in the pineal.
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Affiliation(s)
- Mohua Seth
- Department of Zoology, Visva Bharati University, Santiniketan, India
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15
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Chattoraj A, Seth M, Basu A, Shrivastav TG, Porta S, Maitra SK. Temporal relationship between the circulating profiles of melatonin and ovarian steroids under natural photo-thermal conditions in an annual reproductive cycle in carpCatla catla. BIOL RHYTHM RES 2009. [DOI: 10.1080/09291010802404218] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Maitra SK, Chattoraj A, Bhattacharyya S. Implication of melatonin in oocyte maturation in Indian major carp Catla catla. FISH PHYSIOLOGY AND BIOCHEMISTRY 2005; 31:201-207. [PMID: 20035459 DOI: 10.1007/s10695-006-0025-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Importance of melatonin (N-acetyl-5-methoxytryptamine) in the regulation of oocyte maturation has been studied in a carp Catla catla. Melatonin secretory cells were immunocytochemically localized only in the end vesicle. Diurnal and seasonal studies indicated that the serum levels of melatonin exhibit a minimum diurnal value in the mid-day of all seasons, but the peak value is attained either at mid-night or just before the onset of light. Moreover, highest seasonal value of melatonin was noted in the post-spawning phase. Administration of melatonin at different doses (25, 50, or 100 mug/100 g body weight) for 1, 15, or 30 days resulted in either pro- or anti-gonadal effects depending on the reproductive seasons. In vitro study revealed that incubation of oocytes with melatonin 4h prior to addition of MIH in the medium led to an accelerated rate of oocyte maturation through the formation of a complex of two proteins (MPF), cyclin B and cyclin dependant kinase, Cdc2. Moreover, melatonin pre-incubation considerably increased MIH stimulation of histone H1 phosphorylation as compared to MIH alone. Taken together, gathered information promotes the idea of a physiological role of melatonin in the maturation of oocytes in Catla catla.
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Affiliation(s)
- Saumen Kumar Maitra
- Department of Zoology, Visva-Bharati University, Santiniketan, 731 235, India,
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