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 289
- Downloads 14
Effect of Social Capital on Productivity of Rice Farms in Kwara State, Nigeria
This study examines the role of social capital in rice production in Kwara State, Nigeria. Primary data obtained from 90 rice farming households through a combination of purpose and random sampling techniques were used f...
Design with Concurrent Approach: Development and Flow Analysis of Injection Mould Tool for Computer Monitor Lamp Holder
The plastic product manufacturing industry has been growing rapidly in recent years. One of the most popular processes for making plastic parts is injection moluding. The design of injection mould is critically importa...
i-Car: An Intelligent and Interactive Interface for Driver Assistance System
The aim of the present research was to reduce accidents by assisting the driver in various aspects of driving such as lane detection, pedestrian and car detection, driver drowsiness detection and rear view parking assi...
Differentiated Instruction: Perceptions, Practices and Challenges of Primary School Teachers
No Abstract
Homeopathic Medicine and Palliative Cancer Care: A Case Report
Many Indian cancer patients who are incurable because of advance stage of the disease at the time of diagnosis try various complementary and alternative therapies for treatment and palliation. Little is known about the t...