دورية أكاديمية
Tolerance and Cadmium (Cd) Immobilization by Native Bacteria Isolated in Cocoa Soils with Increased Metal Content
العنوان: | Tolerance and Cadmium (Cd) Immobilization by Native Bacteria Isolated in Cocoa Soils with Increased Metal Content |
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المؤلفون: | Pedro F. Feria-Cáceres, Lucas Penagos-Velez, Claudia X. Moreno-Herrera |
المصدر: | Microbiology Research, Vol 13, Iss 3, Pp 556-573 (2022) |
بيانات النشر: | MDPI AG, 2022. |
سنة النشر: | 2022 |
المجموعة: | LCC:Microbiology |
مصطلحات موضوعية: | bacteria, native, soil, cacao, Cd, TEM, Microbiology, QR1-502 |
الوصف: | Twelve cadmium native bacteria previously isolated in soils of cocoa farms located in the western Colombian Andes (Santander), and tolerant to 2500 µM CdCl2 (120 mg Cd/L), were chosen in order to test their tolerance and Cd immobilization using liquid culture medium (Nutritive broth) at different concentrations of heavy metals. Furthermore, in the greenhouse experiments, the strains Exiguobacterium sp. (11-4A), Klebsiella variicola sp. (18-4B), and Enterobacter sp. (29-4B) were applied in combined treatments using CCN51 cacao genotype seeds grown in soil with different concentrations of Cd. All bacterial strains’ cell morphologies were deformed in TEM pictures, which also identified six strain interactions with biosorption and four strain capacities for bioaccumulation; FT-IR suggested that the amide, carbonyl, hydroxyl, ethyl, and phosphate groups on the bacteria biomass were the main Cd binding sites. In the pot experiments, the concentration of Cd was distributed throughout the cacao plant, but certain degrees of immobilization of Cd can occur in soil to prevent an increase in this level in roots with the presence of Klebsiella sp. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 2036-7481 |
العلاقة: | https://www.mdpi.com/2036-7481/13/3/39Test; https://doaj.org/toc/2036-7481Test |
DOI: | 10.3390/microbiolres13030039 |
الوصول الحر: | https://doaj.org/article/18ee6e8298684caebcc998c1202b9e4dTest |
رقم الانضمام: | edsdoj.18ee6e8298684caebcc998c1202b9e4d |
قاعدة البيانات: | Directory of Open Access Journals |
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