scholarly journals The molecular basis for construction of highly productive ecologically sustainable agrocenoses

2011 ◽  
Vol 9 (3) ◽  
pp. 23-26
Author(s):  
Igor A Tikhonovich ◽  
Nikolay A Provorov
Keyword(s):  
Microbial Communities ◽  
Molecular Basis ◽  
Soil Microbial Communities ◽  
Mineral Fertilizers ◽  
Agricultural Systems ◽  
Soil Microbial ◽  
Two Component ◽  
Genetic Systems ◽  
Sustainable Agricultural Systems ◽  
Ecologically Sustainable

The methodology is suggested for analyzing the variability and heredity in super-organism genetic systems of different complexity ranging from two-component plant-microbe and animal-microbe symbiosis to the endosymbiotic and soil microbial communities. The approaches based on symbiogenetics and metagenomics may be used for development of highlyproductive ecologically sustainable agrocenoses based on the substitution of agrochemicals (mineral fertilizers, pesticides) by the microbial preparations. A possibility is emphasized to use the natural analogs of agrocenoses for development of models to implement the directed construction and improvement of productivity in the sustainable agricultural systems. 

Biodiversity of soil microbial communities in agricultural systems

1996 ◽  
Vol 5 (2) ◽  
pp. 197-209 ◽  
Author(s):  
C. E. Pankhurst ◽  
K. Ophel-Keller ◽  
B. M. Doube ◽  
V. V. S. R. Gupta
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Agricultural Systems ◽  
Soil Microbial

scholarly journals Soil microbial communities and dehydrogenase activity depending on farming systems

2014 ◽  
Vol 60 (No. 10) ◽  
pp. 459-463 ◽  
Author(s):  
M. Järvan ◽  
L. Edesi ◽  
A. Adamson ◽  
T. Võsa
Keyword(s):  
Microbial Communities ◽  
Dehydrogenase Activity ◽  
Soil Microbial Communities ◽  
Farming Systems ◽  
Cattle Manure ◽  
Mineral Fertilizers ◽  
Soil Microbial ◽  
Colony Forming Units ◽  
Dry Soil ◽  
Total Bacteria

The aim of study was to compare the effect of farming methods on soil microbial communities and dehydrogenase activity (DHA). During 2008–2013, in the five-field crop rotation the following treatments were carried out: ORG – organic; ORGFYM – organic with cattle manure; CONFYM – conventional (cattle manure, mineral fertilizers and pesticides were used). From the treatments soil samples in three replicates were taken for microbiological tests in September yearly. Total bacteria and cellulose decomposing bacteria were determined as a number of colony forming units per g of dry soil. Soil DHA was determined in accordance with Tabatabai (1982). Solid cattle manure applied in the ORGFYM rotation increased significantly (P < 0.05) the number of total bacteria and cellulose decomposing bacteria (by 19.4% and 45.3%, respectively), and DHA by 22.7%. There appeared no clear and significant differences in effects between ORGFYM and CONFYM treatments, as an average of experiment period. In some cases, the use of certain pesticides in CONFYM treatment significantly affected the microbe numbers and soil DHA.

Temporal variability of soil microbial communities after application of dicyandiamide-treated swine slurry and mineral fertilizers

2016 ◽  
Vol 97 ◽  
pp. 71-82 ◽  
Author(s):  
Afnan K.A. Suleiman ◽  
Rogério Gonzatto ◽  
Celso Aita ◽  
Manoeli Lupatini ◽  
Rodrigo J.S. Jacques ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Temporal Variability ◽  
Soil Microbial Communities ◽  
Mineral Fertilizers ◽  
Swine Slurry ◽  
Soil Microbial

Alkaline soil pH affects bulk soil, rhizosphere and root endosphere microbiomes of plants growing in a Sandhills ecosystem

2021 ◽  
Vol 97 (4) ◽  
Author(s):  
Lucas Dantas Lopes ◽  
Jingjie Hao ◽  
Daniel P Schachtman
Keyword(s):  
Microbial Communities ◽  
Plant Species ◽  
Soil Ph ◽  
Soil Microbial Communities ◽  
Bulk Soil ◽  
Strong Impact ◽  
Alkaline Soil ◽  
Alkaline Soils ◽  
Soil Microbial ◽  
Soil Rhizosphere

ABSTRACT Soil pH is a major factor shaping bulk soil microbial communities. However, it is unclear whether the belowground microbial habitats shaped by plants (e.g. rhizosphere and root endosphere) are also affected by soil pH. We investigated this question by comparing the microbial communities associated with plants growing in neutral and strongly alkaline soils in the Sandhills, which is the largest sand dune complex in the northern hemisphere. Bulk soil, rhizosphere and root endosphere DNA were extracted from multiple plant species and analyzed using 16S rRNA amplicon sequencing. Results showed that rhizosphere, root endosphere and bulk soil microbiomes were different in the contrasting soil pH ranges. The strongest impact of plant species on the belowground microbiomes was in alkaline soils, suggesting a greater selective effect under alkali stress. Evaluation of soil chemical components showed that in addition to soil pH, cation exchange capacity also had a strong impact on shaping bulk soil microbial communities. This study extends our knowledge regarding the importance of pH to microbial ecology showing that root endosphere and rhizosphere microbial communities were also influenced by this soil component, and highlights the important role that plants play particularly in shaping the belowground microbiomes in alkaline soils.

LDPE microplastics affect soil microbial communities and nitrogen cycling

2021 ◽  
Vol 773 ◽  
pp. 145640
Author(s):  
Lili Rong ◽  
Longfei Zhao ◽  
Leicheng Zhao ◽  
Zhipeng Cheng ◽  
Yiming Yao ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Nitrogen Cycling ◽  
Soil Microbial Communities ◽  
Soil Microbial

Azorella Cushion Plants and Aridity are Important Drivers of Soil Microbial Communities in Andean Ecosystems

Ecosystems ◽  
2021 ◽  
Author(s):  
Susana Rodríguez-Echeverría ◽  
Manuel Delgado-Baquerizo ◽  
José A. Morillo ◽  
Aurora Gaxiola ◽  
Marlene Manzano ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Soil Microbial ◽  
Cushion Plants
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