WITHDRAWN: Biocontrol of tomato Fusarium wilt disease by a new Moringa endophytic Aspergillus isolates

Aldinary, Ahmed M.; Abdelaziz, Amer M.; Farrag, Ayman A.; Attia, Mohamed S.

doi:10.1016/j.matpr.2021.03.423

Cited by 24 publications

(30 citation statements)

References 49 publications

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“…At antioxidant enzymes activity level, our results, in Figure 7 C, showed an increase in the activity of antioxidant enzymes (POD, PPO, SOD and CAT) in infected maize seedlings, where increases of 32.80%, 10.80%, 51.50%, and 53.8%, respectively, were observed. These results can be explained as a natural reaction to detoxify free radicals (ROS) [ 35 ]. These enzymes act as the initial steps in increasing plant resistance to various stresses, as well as the formation of phenolic compounds [ 96 ].…”

Section: Resultsmentioning

confidence: 99%

“…Isolation of endophytic fungi was achieved using the method of Aldinary et al [ 35 ]. Apparently healthy Moringa oleifera leaves were obtained from the National Research Center, Dokki, Egypt.…”

Section: Methodsmentioning

confidence: 99%

“…In general, leaves are the main source of the endophytic fungal community, promoting the effect on plant health [ 34 ]. The degree of microbial diversity of living host plants differs according to the plant species that have been described as protecting agents against biotic attacks [ 35 ]. In this regard, many studies reported that endophytic fungi are rich in secondary metabolites, with a broad range of biological activities, such as antifungal activity [ 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

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Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Zea mays L. Using Endophytic Aspergillus fumigatus

Abdelaziz

El-Wakil

Attia

et al. 2022

JoF

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Aspergillus flavus infection of vegetative tissues can affect the development and integrity of the plant and poses dangerous risks on human and animal health. Thus, safe and easily applied approaches are employed to inhibit A. flavus growth. To this end, the fungal endophyte, i.e., Aspergillus fumigatus, was used as a safe biocontrol agent to reduce the growth of A. flavus and its infection in maize seedlings. Interestingly, the safe endophytic A. fumigatus exhibited antifungal activity (e.g., 77% of growth inhibition) against A. flavus. It also reduced the creation of aflatoxins, particularly aflatoxin B1 (AFB1, 90.9%). At plant level, maize seedling growth, leaves and root anatomy and the changes in redox status were estimated. Infected seeds treated with A. fumigatus significantly improved the germination rate by 88.53%. The ultrastructure of the infected leaves showed severe disturbances in the internal structures, such as lack of differentiation in cells, cracking, and lysis in the cell wall and destruction in the nucleus semi-lysis of chloroplasts. Ultrastructure observations indicated that A. fumigatus treatment increased maize (leaf and root) cell wall thickness that consequentially reduced the invasion of the pathogenic A. flavus. It was also interesting that the infected seedlings recovered after being treated with A. fumigatus, as it was observed in growth characteristics and photosynthetic pigments. Moreover, infected maize plants showed increased oxidative stress (lipid peroxidation and H2O2), which was significantly mitigated by A. fumigatus treatment. This mitigation was at least partially explained by inducing the antioxidant defense system, i.e., increased phenols and proline levels (23.3 and 31.17%, respectively) and POD, PPO, SOD and CAT enzymes activity (29.50, 57.58, 32.14 and 29.52%, respectively). Overall, our study suggests that endophytic A. fumigatus treatment could be commercially used for the safe control of aflatoxins production and for inducing biotic stress tolerance of A. flavus-infected maize plants.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Zea mays L. Using Endophytic Aspergillus fumigatus

Abdelaziz

El-Wakil

Attia

et al. 2022

JoF

Self Cite

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“…from roots and seeds of M. oleifera . Aldinary et al [ 134 ] reported three fungal endophytes from the leaf tissues of M. oleifera identified as Aspergillus alabamensis , Aspergillus tubingensis , and Aspergillus oryzae [ 134 ]. Table 1 shows endophytic microflora of ethnomedicinal plants of the Thar Desert and their biopotential applications.…”

Section: Endomicrobial Diversity Of Important Medicinal Plants/genusmentioning

confidence: 99%

Bioprospecting of endophytes in medicinal plants of Thar Desert: An attractive resource for biopharmaceuticals

Yadav

Meena

2021

Biotechnology Reports

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Highlights Endophytes act as chemical synthesizers of the secondary metabolites of the host plant. Endophytic microflora has been isolated from a wide array of plants. It can serve as a good alternative source for pharmaceutically important compounds. The arid ecosystem of Thar Desert is a rich repository of ethnomedicinal plants. Role of endophytes in the synthesis of bioactive molecules used to enhance production.

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“…Products of this pathway are well known to be associated with plant defense responses against phytopathogens [ 18 , 19 ]. Generally, the application of resistance inducers, either of biotic or synthetic origin, has been effectively employed to control different diseases caused by vascular wilting-related pathogens [ 20 , 21 , 22 ]. The vascular wilt-promoted resistance through biotic elicitors is particularly interesting for carnation cultivation, since international markets prefer those ornamental products not treated by synthetic agents due to the growing tendency to employ products from environmentally friendly production systems [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Mycelium Dispersion from Fusarium oxysporum f. sp. dianthi Elicits a Reduction of Wilt Severity and Influences Phenolic Profiles of Carnation (Dianthus caryophyllus L.) Roots

Santos-Rodríguez

Coy-Barrera

Ardila

2021

Plants

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The fungal pathogen Fusarium oxysporum f. sp. dianthi (Fod) is the causal agent of the vascular wilt of carnation (Dianthus caryophyllus L.) and the most prevalent pathogen in the areas where this flower is grown. For this reason, the development of new control strategies against Fod in carnation has been continuously encouraged, in particular those based on the implementation of plant resistance inducers that can trigger defensive responses to reduce the disease incidence, even at lower economical and environmental cost. In the present study, the effect of the soil supplementation of a biotic elicitor (i.e., ultrasound-assisted dispersion obtained from Fod mycelium) on disease severity and phenolic-based profiles of roots over two carnation cultivars was evaluated. Results suggest that the tested biotic elicitor, namely, eFod, substantially reduced the progress of vascular wilting in a susceptible cultivar (i.e., ‘Mizuki’) after two independent in vivo tests. The LC-MS-derived semi-quantitative levels of phenolic compounds in roots were also affected by eFod, since particular anthranilate derivatives, conjugated benzoic acids, and glycosylated flavonols were upregulated by elicitation after 144 and 240 h post eFod addition. Our findings indicate that the soil-applied eFod has an effect as a resistance inducer, promoting a disease severity reduction and accumulation of particular phenolic-like compounds.

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WITHDRAWN: Biocontrol of tomato Fusarium wilt disease by a new Moringa endophytic Aspergillus isolates

Cited by 24 publications

References 49 publications

Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Zea mays L. Using Endophytic Aspergillus fumigatus

Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Zea mays L. Using Endophytic Aspergillus fumigatus

Bioprospecting of endophytes in medicinal plants of Thar Desert: An attractive resource for biopharmaceuticals

Mycelium Dispersion from Fusarium oxysporum f. sp. dianthi Elicits a Reduction of Wilt Severity and Influences Phenolic Profiles of Carnation (Dianthus caryophyllus L.) Roots

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