Changes in Streptomyces Bacteria in Rhizospheric Soil as Compared to Non-Rhizospheric Soil: A Case Study from North-East of Qatar | Chapter 9 | Advanced Research in Biological Science Vol. 7

 This stage elucidate the changes in the microbial society (especially Streptomyces microorganisms) at the saline lands (rhizospheric and non-rhizospheric), and by means of what the presence of native plants, halophytes e.g., attract few new species of Streptomyces microorganisms by conducting few important biochemical and organic tests. Plants are part of a rich environment including many and diverse microorganisms in the soil. It has existed long recognized that few of these microbes, in the way that mycorrhizal fungi or nitrogen fixing cooperative bacteria, play main roles in plant act by improving not organic nutrition. The organic activities acted by plants and microorganisms in dry and saline soil play an main role in making them blossom in these extreme environmental environments. Therefore, in this place research, four halophyte plants namely: Caroxylon imbricatum, Sporobolus ioclados, Tamarix aphylla, and Tetraena qatarensis, were preferred to investigate the features, characteristics, and projects of Streptomyces isolates in these habitats. The synthetic and physical features of soil at the study area (Al Ghariya Sabkha) told that pH levels are almost uniform and homogenous across the Sabkha; grazing between 7.7-7.9, and salinity levels were very extreme at non-rhizospheric soil as compared to the rhizospheric soils, so, all elements at the rhizospheres of the intentional plants have lower concentrations than those at the non-rhizospheric soils. Numerous types of isolates accompanying unique community characteristics and characteristics were found in the rhizospheric soil of halophytes. These judgments suggest that a abundant number of strains of Streptomyces bacteria have grew in these miniature habitats inside the canopy of these plants. The current study told a limited number of variety of this type in the non-rhizospheric soils, only four isolates at this mini-residence of the halophytes under investigation were acknowledged, these isolates showed restricted characteristics of community features that included: flying mycelium color, soluble color, reverse color, and the form of the whole community. The enzyme ventures of the isolates that have been intentional in the rhizospheric and non-rhizospheric soils have shown more changing isolates in the rhizosphere of the plants under investigation than those of non-rhizospheric soils. The adulthood of the Streptomyces isolates at these mini-residences shown a forceful antibacterial effect against the strains that were checked, including Grandam-positive (B. subtilis, S. aureus, and S. epidermidis) and Grandam-negative (E. coli). Overall, the results of this research showed that the features and characteristics of Streptomyces microorganisms explaining their biodiversity were extreme in rhizospheric soils of halophytes as compared to non-rhizospheric soils.

Author(s) Details:

Roda Fahad Al-Thani,
Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar.

Aisha Al-Mohannadi,
Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar.

Dana Deyab,
Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar.

Fatima Abdulla Al-Yafei,
Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar.

Mohammad Yousaf Ashfaq
Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar.

Bassam Taha Yasseen,
Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar.

Please see the link here: https://stm.bookpi.org/ARBS-V7/article/view/12902

Applications of X-Ray Analysis: Tanzanian Case Studies| Book Publisher International

 Chapter 1. The samples of both maize and soil were prepared and analyzed using Energy Dispersive X-rays Fluorescence (EDXRF) with the objective of investigating the elemental concentration levels. Most of the elements in both soil and maize were detected with high concentration levels.

Chapter 2. The mean concentrations of the analyzed elements were compared to the maximum tolerable levels (MTLs) set by international organizations. The mean concentrations of Ca, Se, Zn, As, Cr, and Cd were higher than their MTLs while, the mean concentrations of Cu and Ni were lower than their MTLs for samples from all fish markets.

Chapter 3. The Health Risk Index (HRI) values for Sr, Ni and Fe in vegetables exceeded the maximum threshold limits (HRI>1) set by United States Environmental Protection Agency (USEPA). The findings of this work indicates that soils and vegetables grown, particularly cowpea leaves, spinach and Chinese cabbages were extremely contaminated at levels able to pose detrimental health effects to the consumers. Therefore the consumption of cowpea leaves, spinach and Chinese cabbages should be reduced to the maximum if not abandoned. But limited quantities of Ethiopian mustard and sweet potato leaves can be taken while immediate steps are taken to reduce anthropogenic activities at the polluting site. This situation makes the regular monitoring of the grown vegetables a compulsory act.

Chapter 4. The results of vegetables show the deviation of less than 2%.The Minimum Detection Limit (MDL) for vegetables and soil of the Wavelength dispersive x-ray fluorescence (WDXRF) spectrometer was obtained under low back ground for different matrix effects. There were high correlation coefficient of heavy metals in soils and vegetables at 99% level. The findings indicate that Minjingu soils and grown vegetables were highly contaminated with heavy metals mainly from soils and polluted air, at levels able to pose detrimental health effects to the consumers. Thus need of regular monitoring of the grown vegetables around phosphate mines is recommended.

Author(s) Details:

Yusuf Ismail Koleleni,
Department of Physics, University of Dar es salaam, P. O. Box 35063 Dar es Salaam, Tanzania and Department of Physics, Muslim University of Morogoro (MUM), P. O. Box 1031 Morogoro, Tanzania.

Please see the link here: https://stm.bookpi.org/AXATCS/article/view/9201