Acclimatory changes in protein and nucleic acid contents of liver, muscle, and ovary of Singi fish (Heteropneustes fossilis Bloch) of two phases of reproductive cycle at different temperatures. 1984

A K Dasmahapatra, and A K Ray, and A K Medda

The variation of environmental temperature has significant effect on the metabolism of liver, muscle, and ovary of female Singi fish (non-vitellogenic and vitellogenic). Acclimation of Singi fish at 15, 25, and 30 degrees C for 30 d resulted in reduction of hepatosomatic index with the rise of temperature. The protein content of liver increased at 30 degrees C in both non-vitellogenic and vitellogenic fish. The liver RNA, however, showed a reduction with the rise of temperature at nonvitellogenic stage, but it increased at higher temperature (25 or 30 degrees C) at vitellogenic stage. The protein content of muscle enhanced with the rise of temperature in both non-vitellogenic and vitellogenic fish. The muscle RNA, however, remained unchanged at different acclimatory temperature. The gonadosomatic index increased after acclimation at 30 degrees C both at non-vitellogenic and vitellogenic stage. The protein content of ovary increased at these 2 stages with the rise of temperature from 15 to 25 degrees C and from 25 to 30 degrees C but the ovarian RNA changed in opposite direction (reduction) under these conditions. The DNA content of liver of non-vitellogenic fish and of muscle of both non-vitellogenic and vitellogenic fish did not alter with the change in acclimation temperature. The liver DNA showed a reduction at vitellogenic stage with the rise of temperature. The DNA content of ovary increased at non-vitellogenic stage and decreased at vitellogenic stage after acclimation at 30 degrees C.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D009124 Muscle Proteins The protein constituents of muscle, the major ones being ACTINS and MYOSINS. More than a dozen accessory proteins exist including TROPONIN; TROPOMYOSIN; and DYSTROPHIN. Muscle Protein,Protein, Muscle,Proteins, Muscle
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D009929 Organ Size The measurement of an organ in volume, mass, or heaviness. Organ Volume,Organ Weight,Size, Organ,Weight, Organ
D010053 Ovary The reproductive organ (GONADS) in female animals. In vertebrates, the ovary contains two functional parts: the OVARIAN FOLLICLE for the production of female germ cells (OOGENESIS); and the endocrine cells (GRANULOSA CELLS; THECA CELLS; and LUTEAL CELLS) for the production of ESTROGENS and PROGESTERONE. Ovaries
D011506 Proteins Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein. Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D005260 Female Females
D005399 Fishes A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.
D000064 Acclimatization Adaptation to a new environment or to a change in the old. Acclimation

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