| Titles |
|
English :
|
Characterization of anabaena Azollae isolated from Azolla pinnata
|
|
Arabic :
|
صفات طحلب أنابينا أزولا المعزول من أزولا بيانتا
|
|
| Abstract |
A symbiotically associated cyanobacterium (Anabaena azollae) was isolated from Azolla pinnata and cultured under a free-living state. It is characterized by filamentous brown to olive in color culture, its vegetative cells are cylindrical and their diameters ranged from 8 to 9μm width and from 5 to 6 μm length. Heterocysts were found to be internal and terminal in the filament, its shape is spherical and its diameters ranged from 9 to 9.5 μm width and from 9 to 9.5 μm length. Akintes are present with cylindrical shape, with diameters of 9-10 μm width and 6-8 μm length. Nitrogenase activity of Anabaena azollae increased gradually from 0.1786 to 4.7992 μ mole C2H4 g soil/hr along 4 weeks. The strain showed high efficacy in suppressing the fungal mycelial growth of either Fusarium oxysporum or Alternaria alternate by 100 %
|
| Publication year |
2013
|
| Pages |
801-809
|
| Availability location |
المجلة المصرية للبحوث الزراعية جامعة الزقازيق
|
| Availability number |
|
| Organization Name |
Soil, Water and Environment Research Institute (SWERI)
|
| City |
الزقازيق
|
| serial title |
Egypt. J. Agric. Res., 91 (3), 2013
|
| Author(s) from ARC |
|
| Agris Categories |
Soil biology
|
AGROVOC TERMS |
Anabaena azollae.
|
| Publication Type |
Journal
|