Isolation and Screening of Bacterial and Fungal Isolates for Plant Growth Promoting Properties from Tomato (Lycopersicon esculentum Mill.)

Prasad, M. Rajendra; Sagar, B. Vidya; Devi, G. Uma; Triveni, S.; Rao, Sudabathula Rajaramamohana; Chari, K. Damodara

doi:10.20546/ijcmas.2017.608.096

Cited by 15 publications

(9 citation statements)

References 7 publications

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“…The current results showed that the use of the tested biocides including fungal and bacterial bioagents was able to inhibit the mycelial growth of tested three pathogenic fungi. These results were supported by other findings that approved the efficiency of many bioagents to inhibit pathogenic fungi by producing one or more of inhibitory substances such as antibiotic(s), hydrolytic enzymes, indole acetic acid, siderophore or hydrogen cyanide (Soria et al, 2012;Abo-Elyousr et al, 2014;Sarhan andShehata, 2014 andPrasad et al, 2017). Trichoderma spp.…”

Section: Effect Of the Tested Biocides On Linear Growth Of The Tested Fungi In Vitrosupporting

confidence: 78%

Effectiveness of Certain Biocides and Essential Oils in Controlling Damping-Off and Root-Rot Diseases of Soybean (Glycine max (L.) Merr.)

Sarhan

2020

Journal of Plant Protection and Pathology

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Damping-off and root-rot are some of the most important diseases attack soybean (Glycine max (L.) Merr.) in Egypt. The effect of biocides, i.e. Bio-Cure-F, Plant guard, and Rhizo-N, and essential oils of eucalyptus, thyme, and lemongrass oils, as well as the fungicide Vitavax-200, were evaluated in vitro, greenhouse and under field conditions during the two successive growing seasons, 2018 and 2019 to control damping-off and root-rot diseases of soybean. All the tested biocides and essential oils used significantly inhibited the linear growth of the tested pathogenic fungi, i.e., Fusarium moniliforme, Fusarium solani and Rhizoctonia solani compared with the control. Under greenhouse and field conditions in both growing seasons, obtained results indicated that all the tested biocides and essential oils significantly reduced the percentages of soybean damping-off and root-rot severity furthermore improved photosynthetic pigments content, growth parameters, and seed yield. Vitavax-200 and Plant guard gave the highest values of reduction in this respect, followed by Rhizo-N, lemongrass oil, Bio-Cure-F, thyme oil, and eucalyptus oil respectively. Besides, the quality parameters of soybean seeds showed a favorable elevation in total oil content, on the contrary, there was a general decrease in the seeds protein content. However, the correlations between seeds oil and protein contents were negatively correlated. It could be concluded in biocides and essential oils examined can be recommended for biocontrol of soybean damping-off and root-rot diseases.

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Section: Effect Of the Tested Biocides On Linear Growth Of The Tested Fungi In Vitrosupporting

confidence: 78%

Effectiveness of Certain Biocides and Essential Oils in Controlling Damping-Off and Root-Rot Diseases of Soybean (Glycine max (L.) Merr.)

Sarhan

2020

Journal of Plant Protection and Pathology

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“…These results are similar to what was decided by [1], which indicated that, the organisms belonging to the genus Bacillus have a high ability to reduce the severity of cantaloupe downy mildew disease. The reaction of the organisms in reducing the severity of cantaloupe downy mildew was explained by [37,31], where they indicated that, the reaction of the organisms might be due to the widespread use of the tested organisms, such as, PGPR, in the fight against plant diseases. It has also been explained, [16,41], that antimicrobial organisms produce compounds, such as, puromycin, which has been classified as an antifungal antibiotic, and plays a role in reducing the severity of plant diseases.…”

Section: Discussionmentioning

confidence: 99%

Efficiency of Using Some Biological Organisms as Biological Catalysts to Reduce the Incidence of Cantaloupe Downy Mildew Disease Under Greenhouse Conditions

Khalil¹

2022

AJLS

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Infection of cantaloupe plant with Downy mildew caused by the fungus Pseudoperonospora cubensis leads to significant losses in the amount of the crop, in addition to, reducing its marketing value in many countries around the world, therefore, the efficacy of each of the organisms (Trichoderma harzianum, Trichoderma viride, Bacillus subtilis, Bacillus megaterium and Pseudomonas fluorescens), and the fungicide Ridomil gold plus 71.5 WP for the control of cantaloupe downy mildew under laboratory and greenhouse conditions was studied, initially, under laboratory conditions, the results obtained showed that, when using bio filters, in addition to, the recommended concentration of the fungicide to inhibit the germination of P. cubensis sporangia, a significant reduction in the germination rate of the pathogenic fungus sporangia was observed, also, under greenhouse conditions, treatment of cantaloupe with the tested organisms and with the fungicide significantly reduced the severity of downy mildew, compared to the control treatment, where, the best of these treatments in reducing the severity of the disease was the use of the fungicide, while, the organisms were arranged according to their efficiency in reducing the severity of the disease in the following descending order: B. subtilis, Ba. megaterium, P. fluorescens, T. viride and T. harzianum, In addition, cantaloupe plants showed a significant increase in plant growth parameters, for example, (number of leaves, leaf area and total chlorophyll content), also, an increase in yield components, For example, (number of fruits/plant and fruit weight /plant), the above treatments also increased the activity of defense-related enzymes, for example, peroxidase and polyphenol oxidase enzymes, as well as, total phenol content compared to the control treatment.

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“…Hydrogen cyanide (HCN) is a volatile secondary metabolite synthetized by several PGPMs [ 31 , 32 ] that can control the level of deleterious microbes in the rhizosphere. For example, the suppression of tomato root knot disease caused by Meloidogyne javanica is mediated by HCN-producing P. fluorescens [ 33 ].…”

Section: Overview Of the Mechanisms Modulated By Pgpms To Improve Pla...mentioning

confidence: 99%

Phyto-Friendly Soil Bacteria and Fungi Provide Beneficial Outcomes in the Host Plant by Differently Modulating Its Responses through (In)Direct Mechanisms

Palma

Scotti²,

D’Agostino

et al. 2022

Plants

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Sustainable agricultural systems based on the application of phyto-friendly bacteria and fungi are increasingly needed to preserve soil fertility and microbial biodiversity, as well as to reduce the use of chemical fertilizers and pesticides. Although there is considerable attention on the potential applications of microbial consortia as biofertilizers and biocontrol agents for crop management, knowledge on the molecular responses modulated in host plants because of these beneficial associations is still incomplete. This review provides an up-to-date overview of the different mechanisms of action triggered by plant-growth-promoting microorganisms (PGPMs) to promote host-plant growth and improve its defense system. In addition, we combined available gene-expression profiling data from tomato roots sampled in the early stages of interaction with Pseudomonas or Trichoderma strains to develop an integrated model that describes the common processes activated by both PGPMs and highlights the host’s different responses to the two microorganisms. All the information gathered will help define new strategies for the selection of crop varieties with a better ability to benefit from the elicitation of microbial inoculants.

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Isolation and Screening of Bacterial and Fungal Isolates for Plant Growth Promoting Properties from Tomato (Lycopersicon esculentum Mill.)

Cited by 15 publications

References 7 publications

Effectiveness of Certain Biocides and Essential Oils in Controlling Damping-Off and Root-Rot Diseases of Soybean (Glycine max (L.) Merr.)

Effectiveness of Certain Biocides and Essential Oils in Controlling Damping-Off and Root-Rot Diseases of Soybean (Glycine max (L.) Merr.)

Efficiency of Using Some Biological Organisms as Biological Catalysts to Reduce the Incidence of Cantaloupe Downy Mildew Disease Under Greenhouse Conditions

Phyto-Friendly Soil Bacteria and Fungi Provide Beneficial Outcomes in the Host Plant by Differently Modulating Its Responses through (In)Direct Mechanisms

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