Characterization of Phosphate Solubilizing Faba Bean (Vicia faba L.) Nodulating Rhizobia Isolated from Acidic Soils of Wollega, Ethiopia
Journal Title: STAR Journal - Year 2014, Vol 3, Issue 3
Abstract
Some species of rhizobial bacteria nodulating faba bean are characterized by phosphate solubilization. In order to study their in vitro and symbiotic characteristics, twelve rhizobial isolates nodulating faba bean were collected from acidic soil of Wollega, Ethiopia. Solubilization index of the isolates ranges from 1.25 to 2.10. Mean Generation Time of the isolates were less than 2.34; and growth of isolates on Yeast Extract Mannitol agar with bromothymoleblue media were accompanied by change of color from blue to yellow. AUAVR- 51 and AUAVR-52 were the highest in TCP-Solubilizion Index. The two isolates were also recognized as stress tolerant when tested in vitro for extreme temperature, osmotic, acidic pH, intrinsic antibiotics, and acidic-aluminum as compared to the other isolates. However, there was no unique metabolic diversity and specialization of AUAVR-51 and AUAVR-52 isolates with respect to carbon and nitrogen source utilization. On the other hand, isolates AUAVR-51 and AUAVR-52 were characterized by effective and highly effective symbiosis on sterile potted sand growth, respectively. In general, phosphate solubilizing rhizobia nodulating faba bean from acidic soil are fast grower; and their solubilization potential varies. However, the contribution of these isolates as double fertilizer should be tested in the real acidic soil characterized by immobilized phosphorous.
Authors and Affiliations
Girmaye Kenasa| Department of Biology, College of Natural and Computational Sciences, Wollega University, Post Box No: 395, Nekemte, Ethiopia, Addis Ababa University, Department of Microbial, Cellular and Molecular Biology, Post Box No: 1176, Addis Ababa, Ethiopia, Mulissa Jida| Department of Biology, College of Natural and Computational Sciences, Wollega University, Post Box No: 395, Nekemte, Ethiopia, Fassil Assefa| Addis Ababa University, Department of Microbial, Cellular and Molecular Biology, Post Box No: 1176, Addis Ababa, Ethiopia
Keywords
Related Articles
- EP ID EP9676
- DOI -
- Views 322
- Downloads 14
The Perception of Prospective Teachers toward Stakeholders’ Experience in Practicum: The Case of Bahir Dar University
No Abstract
Fidelity of Peer Mediation and its Role in Improving Students’ Oral English Communication Skills
The purpose of this study was to examine fidelity of peer mediation and its role in improving students’ oral English communication skills at Debre-Berhan University. A Communicative English Skills class was randomly se...
Effects of Seed Proportion and Planting Pattern on Dry Matter Yield, Compatibility and Nutritive Value of Panicum coloratum and Stylosanthes guianensis Mixtures under Bako Condition, Western Oromia, Ethiopia
Panicum coloratum (PC) and Stylosanthes guianensis (SG) mixed pasture was established to assess the effect of seed proportion and planting pattern on Dry Matter Yield (DMY), compatibility and nutrient content of the mi...
Mobile Advertising and Its Impact on the Customers Mind: Case of New Delhi (India)
Advertisers have many numbers of medium for their promotional activities but the importance of medium depends upon the target customers, types of goods/services, 5M’s of advertising and many other factors. Behind every...
Flux Balance Analysis Based Model for the Identification of Potent Drug Target: A Novel Strategy
The work aims at developing a strategy for the identification of potent drug target by analyzing signaling pathways. The strategy developed is designed and tested in concern with Toll Like Receptor-4 (TLR4) signalling pa...