Comparative phosphate solubilizing efficiency of psychrotolerant Pseudomonas jesenii MP1 and Acinetobacter sp. ST02 against chickpea for sustainable hill agriculture

Biologia ◽  
2018 ◽  
Vol 73 (8) ◽  
pp. 793-802 ◽  
Author(s):  
Jyoti Rajwar ◽  
Ramesh Chandra ◽  
Deep Chandra Suyal ◽  
Supriya Tomer ◽  
Saurabh Kumar ◽  
...  
Keyword(s):  
Acinetobacter Sp ◽  
Phosphate Solubilizing ◽  
Hill Agriculture

Isolation and Identification of Potential Phosphate Solubilizing Bacteria from the Rhizoplane of Oryza sativa L. cv. BR29 of Bangladesh

2007 ◽  
Vol 62 (1-2) ◽  
pp. 103-110 ◽  
Author(s):  
Md. Tofazzal Islam ◽  
Abhinandan Deora ◽  
Yasuyuki Hashidoko ◽  
Atiqur Rahman ◽  
Toshiaki Ito ◽  
...  
Keyword(s):  
Ph Value ◽  
Oryza Sativa L ◽  
Agar Plate ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Phosphate Solubilizing Bacteria ◽  
Isolation And Identification ◽  
Acinetobacter Sp ◽  
Phosphate Solubilizing ◽  
Solubilizing Activity

A total of 30 bacteria were isolated from the rhizoplane of rice cv. BR29 cultivated in Mymensingh, Bangladesh and from the seedlings obtained from surface-sterilized seeds of BR29. Upon screening, 6 isolates showed varying levels of phosphate solubilizing activity in both agar plate and broth assays using National Botanical Research Institute’s phosphate medium. The bacterial isolates were identified based on their phenotypic and 16S rRNA genes sequencing data as Acinetobacter sp. BR-12, Klebsiella sp. BR-15, Acinetobacter sp. BR-25, Enterobacter sp. BR-26, Microbacterium sp. BRS-1 and Pseudomonas sp. BRS-2. The BR-25 exhibited highest phosphate solubilizing activity followed by BR-15. They grew rapidly in the liquid medium at pH 5 and 7 but almost no growth occurred at pH 3. The pH value of the culture medium was decreased with bacterial growth suggesting that they might secrete organic acids to solubilize insoluble phosphorus. Scanning electron microscope analysis of two-week-old rice seedlings germinated from seeds previously inoculated with BR-25 and BR-15 revealed dense colonization at the root surfaces presumably using fimbriae on the bacterial cells.

A Freeze-Etch Study of Acinetobacter SP. Grown on a Hydrocarbon Substrate

1974 ◽  
Vol 32 ◽  
pp. 174-175
Author(s):  
C. L. Scott ◽  
W. R. Finnerty
Keyword(s):  
Membrane System ◽  
Structural Distortion ◽  
Intracytoplasmic Membrane ◽  
Gram Negative ◽  
Sectioned Material ◽  
Acinetobacter Sp

Acinetobacter sp. HO-1-N, a gram-negative hydrocarbon oxidizing bacterium previously designated Micrococcus cerificans, has been shown to sequester the hydrocarbon into intracytoplasmic pools as a result of growth on this substrate. In hydrocarbon grown cells, an intracytoplasmic membrane system was also observed along with a doubling of cellular phospholipids (Z). However, using conventional dehydration and embedding procedures in preparing thin sectioned material, the hydrocarbon is extracted from the cells. This may lead to structural distortion, consequently, the freeze-etch technique was applied to preserve the integrity of the cell.

Screening For Microorganisms Possessing Phosphate Solubilizing Potential

2012 ◽  
Vol 3 (1) ◽  
pp. 172-174
Author(s):  
Pragya Rathore ◽  
◽  
Nandini Phanse ◽  
Bhavesh Patel
Keyword(s):  
Phosphate Solubilizing

KEBERADAAN BAKTERI PELARUT FOSFAT DAN AKTIVITAS ENZIM FOSFATASE TANAH DAERAH PERAKARAN TANAMAN OBAT DARI KEBUN RAYA CIBODAS

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Suliasih Suliasih
Keyword(s):  
Alkaline Phosphatase ◽  
Soil Sample ◽  
Rhizosphere Soil ◽  
Botanical Garden ◽  
Soil Enzyme ◽  
Soil Samples ◽  
Phosphate Solubilizing Bacteria ◽  
Bacillus Sp ◽  
Phosphate Solubilizing ◽  
Serratia Rubidaea

A study was undertaken to investigate to occurance of phosphate solubilizing bacteria from rhizosphere soil samples of medicine plants in Cibodas Botanical Garden. 13 soil samples of medicine plants are collected randomly The result shows that 71 isolates of phosphate solubilizing bacteria were isolated, and 10 species of these organism was identified as Azotobacter sp, Bacillus sp, Chromobacterium sp, C.violaceum, Citrobacter sp. , Enterobacter sp., E. liquefaciens. Nitrosomonas sp., Serratia rubidaea, Sphaerotillus natans. Azotobacter sp. And Bacillus sp. Are found in all of soil tested. Conversely, Serratia rubidaea is only in the sample from rhizosphere of Plantago mayor The activity of acid alkaline phosphatase in soil tested ranged from 0.78 – 60,18 ugp nitrophenole/g/h, with the higest values being recorded in soil sample from rhizosphere of “Lavender”.Keywords : phosphate solubilizing bacteria, soil enzyme phosphatase

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