Quarry restoration treatments from recycled waste modify the physicochemical soil properties, composition and activity of bacterial communities and priming effect in semi-arid areas

2021 ◽  
Vol 774 ◽  
pp. 145693
Author(s):  
N. Rodríguez-Berbel ◽  
R. Soria ◽  
R. Ortega ◽  
F. Bastida ◽  
I. Miralles
2021 ◽  
Vol 9 (7) ◽  
pp. 1359
Author(s):  
Elisa Bona ◽  
Nadia Massa ◽  
Omrane Toumatia ◽  
Giorgia Novello ◽  
Patrizia Cesaro ◽  
...  

Algeria is the largest country in Africa characterized by semi-arid and arid sites, located in the North, and hypersaline zones in the center and South of the country. Several autochthonous plants are well known as medicinal plants, having in common tolerance to aridity, drought and salinity. In their natural environment, they live with a great amount of microbial species that altogether are indicated as plant microbiota, while the plants are now viewed as a “holobiont”. In this work, the microbiota of the soil associated to the roots of fourteen economically relevant autochthonous plants from Algeria have been characterized by an innovative metagenomic approach with a dual purpose: (i) to deepen the knowledge of the arid and semi-arid environment and (ii) to characterize the composition of bacterial communities associated with indigenous plants with a strong economic/commercial interest, in order to make possible the improvement of their cultivation. The results presented in this work highlighted specific signatures which are mainly determined by climatic zone and soil properties more than by the plant species.


2011 ◽  
Vol 52 (1) ◽  
pp. 66-78 ◽  
Author(s):  
Beatriz Ruiz-Díez ◽  
Susana Fajardo ◽  
María del Rosario de Felipe ◽  
Mercedes Fernández-Pascual

2007 ◽  
Vol 53 (12) ◽  
pp. 1369-1374 ◽  
Author(s):  
Jo-Marie Vreulink ◽  
Annerina Esterhuyse ◽  
Karin Jacobs ◽  
Alfred Botha

To explore the beneficial qualities or detrimental consequences of cultureable soil yeasts, it is important to understand which physicochemical soil properties most impact populations of these unicellular fungi in their natural habitat. The goal of this study was to determine which soil properties dictate yeast numbers in pristine sandy, low nutrient soils within a semi-arid region. A correlation matrix of the data obtained for 19 different environmental variables indicated a negative correlation between soil pH and yeast numbers. Using general regression models, it was demonstrated that soil pH and copper concentration were the 2 variables that correlated best with soil yeast counts in these soils. However, soil moisture content was found to be the environmental factor with the most impact on cultureable actinomycetes and heterotrophic microbes. The study also demonstrated that divalent cation availability might impact the size of both yeast and prokaryote populations in these soils.


2010 ◽  
Vol 36 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Abderazak Djabeur ◽  
Meriem Kaid-Harche ◽  
Daniel Côme ◽  
Françoise Corbineau

Sign in / Sign up

Export Citation Format

Share Document