Isolation of &amp;lt;i&amp;gt;Pseudomonas flurescens&amp;lt;/i&amp;gt; from Rhizosphere of Faba Bean and Screen Their Hydrogen Cyanide Production Under in Vitro Stduy, Ethiopia

Alemu, Fekadu

doi:10.11648/j.ajls.20160402.11

Cited by 19 publications

(11 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…HCN inhibits the electron transport and disrupts the energy supply to the cell, which leads to death of living organisms. Many bacterial genera have the ability to produce HCN including species of Alcaligenes, Aeromonas, Bacillus, Pseudomonas, and Rhizobium (Alemu 2016).…”

Section: Introductionmentioning

confidence: 99%

Influence of hydrogen cyanide-producing rhizobacteria in controlling the crown gall and root-knot nematode, Meloidogyne incognita

El-Rahman

Shaheen

El-Aziz

et al. 2019

Egypt J Biol Pest Control

View full text Add to dashboard Cite

Out of 39 isolates of rhizobacteria, recovered from economic plants grown in 8 locations in Egypt, 6 isolates were able to produce Hydrogen Cyanide (HCN). 16S rRNA sequence analysis identified these isolates as: Pseudomonas japonica strain NBRC 103040, Bacillus megaterium strain CtST3.5, Pseudomonas sp. strain Gamma-81, P. tolaasii strain ATCC 33618, P. chlororaphis strain Lzh-T5, and P. mosselii strain CV25. These HCN producers were able to inhibit growth of Agrobacterium tumefaciens and affect viability of Meloidogyne incognita juveniles in vitro. The isolates of P. japonica and Pseudomonas sp. Gamma-81 prevented the gall formation on tomato plants by A. tumefaciens, regardless of the presence of M. incognita. The isolates of B. megaterium, P. chlororaphis, P. tolaasii, and P. mosselii decreased the weight and number of galls produced by A. tumefaciens in the presence or absence of M. incognita. The 6 HCN producers decreased the population of M. incognita and the number of nematode galls than the positive control, when used against M. incognita. A similar effect was achieved against mixed infections with M. incognita and A. tumefaciens. The HCN-producing rhizobacteria, in the presence of A. tumefaciens and/or M. incognita, caused obvious increment in all growth parameters of tomato than the negative control and healthy plants. The only exception was found in case of Pseudomonas sp. Gamma-81 against M. incognita and against mixed infection, where growth parameters of tomato were decreased. Although the isolates were naturally isolated from the rhizosphere of economic plants, it must be cautiously considered since the isolate identified as P. japonica has been reported as a human pathogen. Also, P. tolaasii was reported causing a bacterial blotch on cultivated mushrooms under certain environmental conditions. Further investigations are needed.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of hydrogen cyanide-producing rhizobacteria in controlling the crown gall and root-knot nematode, Meloidogyne incognita

El-Rahman

Shaheen

El-Aziz

et al. 2019

Egypt J Biol Pest Control

View full text Add to dashboard Cite

show abstract

“…A PGPM may possess one or more mechanisms of biocontrol. For instance, species from genres Bacillus, Pseudomonas, Alcaligenes, Rhizobium, Aeromonas, and Streptomyces have been identified as biocontrol agents, and their ability to control plant pathogens have been well-documented (Ahmad et al, 2008;Alemu, 2016;Das et al, 2017;Zachow et al, 2017;Abdelmoteleb and González-Mendoza, 2020). These biocontrol agents produce biological compounds (secondary metabolites) that have broad spectrum effects, which may cause beneficial activity against plant pathogens.…”

Section: Pgpr Derived Crop Biotic Stress Tolerancementioning

confidence: 99%

PGPR in Agriculture: A Sustainable Approach to Increasing Climate Change Resilience

Shah

Nazari

Antar

et al. 2021

Front. Sustain. Food Syst.

186

View full text Add to dashboard Cite

Growing environmental concerns are potentially narrowing global yield capacity of agricultural systems. Climate change is the most significant problem the world is currently facing. To meet global food demand, food production must be doubled by 2050; over exploitation of arable lands using unsustainable techniques might resolve food demand issues, but they have negative environmental effects. Current crop production systems are a major reason for changing global climate through diminishing biodiversity, physical and chemical soil degradation, and water pollution. The over application of fertilizers and pesticides contribute to climate change through greenhouse gas emissions (GHG) and toxic soil depositions. At this crucial time, there is a pressing need to transition to more sustainable crop production practices, ones that concentrate more on promoting sustainable mechanisms, which enable crops to grow well in resource limited and environmentally challenging environments, and also develop crops with greater resource use efficiency that have optimum sustainable yields across a wider array of environmental conditions. The phytomicrobiome is considered as one of the best strategies; a better alternative for sustainable agriculture, and a viable solution to meet the twin challenges of global food security and environmental stability. Use of the phytomicrobiome, due to its sustainable and environmentally friendly mechanisms of plant growth promotion, is becoming more widespread in the agricultural industry. Therefore, in this review, we emphasize the contribution of beneficial phytomicrobiome members, particularly plant growth promoting rhizobacteria (PGPR), as a strategy to sustainable improvement of plant growth and production in the face of climate change. Also, the roles of soil dwelling microbes in stress amelioration, nutrient supply (nitrogen fixation, phosphorus solubilization), and phytohormone production along with the factors that could potentially affect their efficiency have been discussed extensively. Lastly, limitations to expansion and use of biobased techniques, for instance, the perspective of crop producers, indigenous microbial competition and regulatory approval are discussed. This review largely focusses on the importance and need of sustainable and environmentally friendly approaches such as biobased/PGPR-based techniques in our agricultural systems, especially in the context of current climate change conditions, which are almost certain to worsen in near future.

show abstract

“…Frequent use of chemical fertilizers and narrow crop rotation can cause declining microbial biodiversity and soil fertility [75][76][77][78][79][80][81][82][83][84][85].…”

Section: Discussionmentioning

confidence: 99%

“…Most of the Ethiopian soils contain low nutrient content due to erosion and absence of nutrient recycling. In addition, most of the areas used for production of grains especially tef, wheat and barley fall under the low fertility soils [62][63][64][65][66][67][68][69][70][71][72][73][74][75].…”

Section: Farmers Knowledge On the Role Of Soil Microorganisms For Soil Fertility In Teff Farmmentioning

confidence: 99%

Traditional Knowledge on Teff (Eragrostistef) Farming Practice and Role of Crop Rotation to Enrich Plant Growth Promoting Microbes for Soil Fertility in East Showa: Ethiopia

Gizaw¹

2018

ARTOAJ

View full text Add to dashboard Cite

Teff (Eragrostis tef) supports more than 60-75% of Ethiopia's population as staple and co-staple food. Interest in teff has increased noticeably due to its very attractive nutritional profile and gluten-free nature of the grain. Teff farming practice varies in different growing areas. Study objective was to assess and document farmer's traditional knowledge of teff farming and utilization practice. Data was collected using structured, semi-structured questionnaire from 172 listed elder informants. Teff farming steps and farming area preparation, cultivated teff variety, the role of crop rotation, type of agroforestry, traditional threshing, type of crop used for rotations, role of microbes in soil fertility, farming equipment, storage and piling practice were described. Among the respondents 91.86% were male and 8.14% female. Teff variety currently cultivated by many farmers are Magna,

show abstract

Isolation of <i>Pseudomonas flurescens</i> from Rhizosphere of Faba Bean and Screen Their Hydrogen Cyanide Production Under in Vitro Stduy, Ethiopia

Cited by 19 publications

References 12 publications

Influence of hydrogen cyanide-producing rhizobacteria in controlling the crown gall and root-knot nematode, Meloidogyne incognita

Influence of hydrogen cyanide-producing rhizobacteria in controlling the crown gall and root-knot nematode, Meloidogyne incognita

PGPR in Agriculture: A Sustainable Approach to Increasing Climate Change Resilience

Traditional Knowledge on Teff (Eragrostistef) Farming Practice and Role of Crop Rotation to Enrich Plant Growth Promoting Microbes for Soil Fertility in East Showa: Ethiopia

Contact Info

Product

Resources

About