کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8875210 | 1623604 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Growth performance of rhizobacteria on water hyacinth (Eichhornia crassipes) juices and dehydrated powder
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present study, juice of water hyacinth (Eichhorina crassipes), either crude or from its successive dilutions (1:1, 1:10, 1:30, 1:50 v/v) supported the in vitro development of Bacillus megaterium, Bacillus subtilis, Azotobacter chroococcum and Rhizobium leguminosarum biovar Phaseoli with doubling time (23.1-63.0â¯min) which was comparable if not shorter, to that calculated using the standard laboratory -synthetic media (nutrient, N-deficient mannitol and yeast extract agar media; 48.0-64.8â¯min). Rhizospheric microorganisms of legume and non-legume plants successfully grew on surface-inoculated agar plates of crude and diluted juices of the macrophyte. Tea bags filled with the dehydrated powders (5 and 10â¯gâ¯lâ1) of water hyacinth supported the in situ recoverability of total rhizobacteria in population densities (3â¯Ãâ¯107 - >108â¯cfu.gâ1), which were found to be comparable, if not excessive, to those enumerated on the recommended culture media. Morpho-physiological identification of some isolates that had developed on the plant juice and tea bag culture media, revealed that they are not akin to those cultured on the chemically-synthetic culture media; they possibly represent a portion of recommended media - unculturables.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Egyptian Journal of Aquatic Research - Volume 44, Issue 1, March 2018, Pages 1-7
Journal: The Egyptian Journal of Aquatic Research - Volume 44, Issue 1, March 2018, Pages 1-7
نویسندگان
Rasha H. Ahmed, H. Mona Badawi, Abdallah S. Ali, Mohammed Fayez,