ISOLATION OF RHIZOSPHERIC BACTERIA AND THEIR EFFECT ON GERMINATION OF TOBACCO SEED AND GROWTH OF SEEDLINGS

Article Id: ARCC292 | Page : 127-130
Citation :- ISOLATION OF RHIZOSPHERIC BACTERIA AND THEIR EFFECT ON GERMINATION OF TOBACCO SEED AND GROWTH OF SEEDLINGS.Agricultural Science Digest.2013.(33):127-130
D.V. Subhashini
Address : Central Tobacco Research Institute, Rajahmundry-533 105, India

Abstract

Rhizosphere bacteria were isolated from root zones of tobacco (Nicotiana tabacum L.) plants. They were cultured in laboratory and investigated for their effects on germination and growth of tobacco seedlings. Isolates thrive on root exudates in the rhizosphere and benefit the plants by altering the solubility and availability of mineral nutrients and protecting the roots from invasion of pathogens by creating an antibiotic barrier around the root. Present study revealed that rhizospheric bacteria do not effect the germination of tobacco seeds. Tobacco rhizospheric bacteria were found to produce better growth of tobacco seedlings in pot cultures.

Keywords

Bacteria Rhizosphere Soil microflora Tobacco.

References

  1. Babalola, O. O., Elie, O. Osir and Abiodun, I. Sanni. (2002). Characterization of potential ethylene-producing rhizosphere bacteria of Striga-infested maize and sorghum. African J. Biotechnolo., 1(2):67-69.
  2. Berkeley, R. C. W (1971). Microbiology of soil. Micro-Organisms: Function, Form and Environment. Edward Amold (Publishers) Ltd. Pp. 725.
  3. Clarke, F. E. (1949). Soil Microorganisms and Plant Roots. Adv. Agron., 1:241-288.
  4. Gunapala, N and Scrow, K. M. (1998). Dynamics of soil microbial biomass and activity in conventional and organic farming systems. Soil Biol. Biochem., 30: 805-816.
  5. Hiltner, L. (1904). Uber neuere Erfahrungen und Probleme ouf dem Gebiet der Bodenbakteriologie und unter besonderer Beruck sichtigung der Grundungeng and Brache. Arb. Dtsch Lundvt – Ges 98, 59; R.
  6. Kumar and Narula. (1999). Solubilisation of inorganic phosphates and growth emergence of wheat as affected by Azotobacter chroccocum mutants. Biol. Fertile.Soils, 28:301-305.
  7. Narula, N., Kothe, E and Behl, R. K. (2009). Role of root exudates in plant-microbe interactions. J. Applied Bota. Food Quality, 82(2):122-130.
  8. Shamima Nassin and Rahmam, M. A. (2007). Isolation and characterization of rhizosphere bacteria and their effect on germination of rice seeds and growth of seedlings. J. Bio. Sci., 15: 77-82.
  9. Starkey, R. L. (1938). Some influences of the development of higher plants upon the microorganisms in the soil VI. Microscopic examination of the rhizosphere. Soil Sci., 45: 207-49.
  10. Subhashini, D. V and Padmaja, K. (2009a). Antifungal activity of Pseudomonas fluorescens against different plant pathogenic fungi of tobacco, Indian J. Plant Protection, 37(1&2): 211-212.
  11. Subhashini, D. V and Padmaja, K. (2009b). Isolation of Streptomyces from tobacco soils that show antimicrobial activity. J. Biol. Cont., 23 (4): 417-419.
  12. Subhashini, D. V and Padmaja, K. (2010). Effect of bio-inoculants on seedling vigour in tobacco (Nicotiana tabacum) nurseries. Indian J. Agric. Scie., 80(2): 186-188.
  13. Vazquez, M. M., Cesar. S., Azcon, R and Barea, J. M. (2000). Interactions between arbuscular mycorrhizal fungi and other microbial inoculations (Azospirillum, Pseudomonas, Trichoderma) and their effects on microbial population and enzyme activities in the rhizosphere of maize plants. Appl.Soil.Ecol., 15: 261-272.
  14. Vessey, J. K. (2003). Plant growth promoting rhizobacteria as biofertilizers. Plant and Soil, 255: 571-586.
  15. Volkmar, K. M and Bremer, E. (1998). Effects of seed inoculation with a strain of Pseudomonas fluorescens on root growth and activity of wheat in well-watered and drought-stressed glass-fronted rhizotrons, Can. J. Plant Sci., 78:545-551.

Global Footprints