The silk produced by Bombyx mori, mulberry silk, is of very high economic importance. Many hybrid strains of Bombyx mori were developed to improve silk production and to withstand different environmental conditions. Polyamines are low molecular weight polycations present in all living cells. These are very crucial for the growth and survival of organisms. Previous results from our lab showed positive effect of spermidine treatment on CSR2 × CSR4 hybrid strain. The present study was taken up to know the effect of spermidine and spermine on different parental and hybrid strains of silkworm. Treatment of these molecules increased body weight, gland weight and cocoon weights. Results showed that both spermidine and spermine enhanced silk production. Our study shows a method for enhancement of silk production by parental strains.
Yerra A, Mamillapalli A. Effect of polyamines on parental and hybrid strains of Bombyx mori. J App Biol Biotech. 2016; 4 (06): 027-031. DOI: 10.7324/JABB.2016.40605
1. Dandin S.EL, Asavaraja HK, Suresh Kumar N. Sikworm breeds and hybrids at galore. Central Sericultural Research and Training lnstitute,Central Silk Board, Ministry of Textiles, Govt.of lndia, Srirampura, Mysore; 2005.
2. Bindroo BB, Naseems Begui A, Mal Reddy N, Moorthy SM. Pedigree of Bivoltine [V2] Silkworm breeds (Bombyx mori L.) development at CSRTI; 2014.
3. Tabor H, Tabor CW. Polyamines. Ann. Rev. Biochem. 1984; 53: 749 - 790.
4. Pegg AE. Polyamine metabolism and its importance in neoplastic growth and a target for chemotherapy. Cancer Res. 1988; 48:759 - 774.
5. Ha HC, Woster PM, Yager JD, Casero RA Jr. Influence of drug binding on DNA flexibility: a normal mode analysis. Proc. Natl. Acad. Sci. 1997; 94: 11557 - 11562.
6. Cohen SS. Molecular effects on internal cellular polymers: transfer RNA and DNA. A Guide to the Polyamines. Oxford Univ. Press, New York: 1998; 512 - 543.
7. McMurry LM, Algranati ID.Effect of polyamines on translation fidelity in vivo. Eur. J. Biochem. 1986; 155: 383-390.
8. Rouzina I, Bloomfield VA. DNA bending by small, mobile multivalent cations. Biophys. J. 1998; 74: 3152-3164.
9. Das S, Medda A. Effect of cyanocobalamine on protein and nucleic acid contents of ovary of silkworm, Bombyx mori L. during larval, pupal and adult stages of development. Insect Sci. Appl. 1988; 9: 641-646.
10. Ito T, Niminura M. Nutrition of silkworm Bombyx mori. Its specific requirement and its nutrition in relation the mineral nutrition of its host plant mulberry Morus indica L. Indian J. Exptl. Biol. 1966a; 4: 31-36.
11. Ito T, Niminura M. Nutrition of silkworm Bombyx mori. XII Nutritive effects of minerals. Bul.Sericult. Expt Sta. 1966b; 20: 373.
12. Nagaraju J. SPECIAL SECTION: RECENT ADVANCES IN SILKWORM BIOLOGY, Application of genetic principles for improving silk production. CURRENT SCIENCE. 2002; 83(4).
13. Nirwani RB, Kaliwal BB. Effect of ferrous and magnesium Sulphate supplementation on some metabolic substances of Bivoltine Silkworm, Bombyx mori L. Korean J. Seric. Sci. 1996a; 38: 118-123.
14. Rai MM, Rathod MK, Khurad AM. Improvement in economic characters of silkworm Bombyx mori L. by Folic acid administration. Entomon. 2002; 27: 99-104
15. Nirwani RB, Kaliwal BB. Increase of silk production and quantitative changes of Carbohydrate and protein in the fat body and haemolymph after feeding potassium Sulphate to bivoltine Bombyx mori L. Sericologia. 1996b; 36: 523-530.
Year
Month
Effect of different polyamines on some physiological traits, growth, and development of basil (Ocimum basilicum L.) in salt stress under hydroponic culture conditions
Khatereh Nejadasgari Chokami, Vahid Abdossi, Saeid Samavat, Alireza Ladan Moghadam, Pezhman MoradiInsights into the impact of spermidine in reducing salinity stress in Gerbera jamesonii
Javeria Uzma, Sai Krishna Talla, Praveen Mamidala