Biocontrol strategy, Compost, Soil-borne pathogens management

2019 ◽  
Vol 10 (2) ◽  
pp. 69-78
Author(s):  
A. Habibi ◽  
B. Safaie Farahani ◽  
R. Mostowfizadeh-Ghalamfarsa ◽  
◽  
◽  
...  
Keyword(s):  
Soil Borne Pathogens ◽  
Compost Soil

scholarly journals Diversity and Biocontrol Potential of Cultivable Endophytic Bacteria Associated with Halophytes from the West Aral Sea Basin

2021 ◽  
Vol 9 (7) ◽  
pp. 1448
Author(s):  
Lei Gao ◽  
Jinbiao Ma ◽  
Yonghong Liu ◽  
Yin Huang ◽  
Osama Abdalla Abdelshafy Mohamad ◽  
...  
Keyword(s):  
Endophytic Bacteria ◽  
Diversity Index ◽  
Pathogenic Fungi ◽  
Significant Inhibition ◽  
Isolation Effect ◽  
Aral Sea ◽  
Rrna Gene ◽  
Bacterial Isolates ◽  
Aral Sea Basin ◽  
Soil Borne Pathogens

Endophytes associated with halophytes may contribute to the host’s adaptation to adverse environmental conditions through improving their stress tolerance and protecting them from various soil-borne pathogens. In this study, the diversity and antifungal activity of endophytic bacteria associated with halophytic samples growing on the shore of the western Aral Sea in Uzbekistan were investigated. The endophytic bacteria were isolated from the nine halophytic samples by using the culture-dependent method and identified according to their 16S rRNA gene sequences. The screening of endophytic bacterial isolates with the ability to inhibit pathogenic fungi was completed by the plate confrontation method. A total of 289 endophytic bacterial isolates were isolated from the nine halophytes, and they belong to Firmicutes, Actinobacteria, and Proteobacteria. The predominant genera of the isolated endophytic bacteria were Bacillus, Staphylococcus, and Streptomyces, accounting for 38.5%, 24.7%, and 12.5% of the total number of isolates, respectively. The comparative analysis indicated that the isolation effect was better for the sample S8, with the highest diversity and richness indices. The diversity index of the sample S7 was the lowest, while the richness index of samples S5 and S6 was the lowest. By comparing the isolation effect of 12 different media, it was found that the M7 medium had the best performance for isolating endophytic bacteria associated with halophytes in the western Aral Sea Basin. In addition, the results showed that only a few isolates have the ability to produce ex-enzymes, and eight and four endophytic bacterial isolates exhibited significant inhibition to the growth of Valsa mali and Verticillium dahlia, respectively. The results of this study indicated that halophytes are an important source for the selection of microbes that may protect plant from soil-borne pathogens.

scholarly journals Biodegradable Antimicrobial Films for Food Packaging: Effect of Antimicrobials on Degradation

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1256
Author(s):  
Eva Hernández-García ◽  
María Vargas ◽  
Chelo González-Martínez ◽  
Amparo Chiralt
Keyword(s):  
Food Packaging ◽  
Negative Impact ◽  
Relevant Information ◽  
Antimicrobial Compounds ◽  
Microorganism Population ◽  
Relevant Effect ◽  
Antimicrobial Materials ◽  
Spoilage Bacteria ◽  
Compost Soil ◽  
Specific Influence

The environmental problem generated by the massive consumption of plastics makes necessary the developing of biodegradable antimicrobial materials that can extend food shelf-life without having a negative impact on the environment. The current situation regarding the availability of biodegradable food packaging materials has been analysed, as well as different studies where antimicrobial compounds have been incorporated into the polymer matrix to control the growth of pathogenic or spoilage bacteria. Thus, the antimicrobial activity of active films based on different biodegradable polymers and antimicrobial compounds has been discussed. Likewise, relevant information on biodegradation studies carried out with different biopolymers in different environments (compost, soil, aquatic), and the effect of some antimicrobials on this behavior, are reviewed. In most of the studies, no relevant effect of the incorporated antimicrobials on the degradation of the polymer were observed, but some antimicrobials can delay the process. The changes in biodegradation pattern due to the presence of the antimicrobial are attributed to its influence on the microorganism population responsible for the process. More studies are required to know the specific influence of the antimicrobial compounds on the biodegradation behavior of polymers in different environments. No studies have been carried out or marine media to this end.

Can repeated soil amendment with biogas digestates increase soil suppressiveness toward non-specific soil-borne pathogens in agricultural lands?

2020 ◽  
pp. 1-12
Author(s):  
L. M. Manici ◽  
F. Caputo ◽  
G. A. Cappelli ◽  
E. Ceotto
Keyword(s):  
Plant Growth ◽  
Biomass Production ◽  
Soil Amendment ◽  
Plant Biomass ◽  
Amended Soils ◽  
Soil Suppressiveness ◽  
Soil Microbial ◽  
Soil Borne Pathogens ◽  
The Impact ◽  
Plant Biomass Production

Abstract Soil suppressiveness which is the natural ability of soil to support optimal plant growth and health is the resultant of multiple soil microbial components; which implies many difficulties when estimating this soil condition. Microbial benefits for plant health from repeated digestate applications were assessed in three experimental sites surrounding anaerobic biogas plants in an intensively cultivated area of northern Italy. A 2-yr trial was performed in 2017 and 2018 by performing an in-pot plant growth assay, using soil samples taken from two fields for each experimental site, of which one had been repeatedly amended with anaerobic biogas digestate and the other had not. These fields were similar in management and crop sequences (maize was the recurrent crop) for the last 10 yr. Plant growth response in the bioassay was expressed as plant biomass production, root colonization frequency by soil-borne fungi were estimated to evaluate the impact of soil-borne pathogens on plant growth, abundance of Pseudomonas and actinomycetes populations in rhizosphere were estimated as beneficial soil microbial indicators. Repeated soil amendment with digestate increased significantly soil capacity to support plant biomass production as compared to unamended control in both the years. Findings supported evidence that this increase was principally attributable to a higher natural ability of digestate-amended soils to reduce root infection by saprophytic soil-borne pathogens whose inoculum was increased by the recurrent maize cultivation. Pseudomonas and actinomycetes were always more abundant in digestate-amended soils suggesting that both these large bacterial groups were involved in the increase of their natural capacity to control soil-borne pathogens (soil suppressiveness).

Detection of soil-borne pathogens in glasshouse-grown ornamentals

EPPO Bulletin ◽  
2000 ◽  
Vol 30 (3-4) ◽  
pp. 481-484
Author(s):  
J. P. Wubben ◽  
A. Numansen ◽  
A. Kerssies
Keyword(s):  
Soil Borne Pathogens

scholarly journals Protective effect of organic substrates against soil-borne pathogens in soilless cucumber crops

2016 ◽  
Vol 206 ◽  
pp. 62-70 ◽  
Author(s):  
Virginie Montagne ◽  
Hervé Capiaux ◽  
Patrice Cannavo ◽  
Sylvain Charpentier ◽  
Sophie Renaud ◽  
...  
Keyword(s):  
Protective Effect ◽  
Organic Substrates ◽  
Soil Borne Pathogens

Chemical control of soil-borne pathogens in tuff medium for strawberry cultivation

1983 ◽  
Vol 14 (2) ◽  
pp. 119-122 ◽  
Author(s):  
Baruch Sneh ◽  
Jaacov Katan ◽  
Ali Abdul-Raziq
Keyword(s):  
Chemical Control ◽  
Soil Borne Pathogens

Evaluation of the antimicrobial activity of 9-oxo-agerophorone against soil borne pathogens

2016 ◽  
Vol 123 (4) ◽  
pp. 163-170 ◽  
Author(s):  
Xiaoman Liu ◽  
Canbin Ouyang ◽  
Yuan Li ◽  
Dongsheng Yang ◽  
Wensheng Fang ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Soil Borne Pathogens

scholarly journals Bioefficacy of Trichoderma isolates against soil-borne pathogens

2014 ◽  
Vol 8 (28) ◽  
pp. 2710-2723
Author(s):  
Srinivasa N. ◽  
Prameela Devi T. ◽  
Sudhirkumar S. ◽  
Kamil Deeba ◽  
Lekha Borah Jyoti ◽  
...  
Keyword(s):  
Soil Borne Pathogens ◽  
Trichoderma Isolates
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