Biological Control of Fusarium Wilt Disease of Tomato Plants Using Seaweed Extracts

El‐Sheekh, Mostafa M.; Mousa, Amal Sh. H.; Farghl, Abla A. M.

doi:10.1007/s13369-020-04518-2

Cited by 17 publications

(10 citation statements)

References 32 publications

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“…As a result of the high safety of marine algae and its low impact on the environment, as well as its increased applicability, marine algae extracts have now become a good alternative to fungicides in controlling plant pathogens (Brimmer & Boland, 2003;Galal et al, 2011 andHamed et al, 2018). Accordingly, we find that a good number of studies have shown the role of marine algae and its extracts in protecting plants from fungal pathogens (Cluzet et al, 2004;Paulert et al, 2009Paulert et al, , 2010Abdel-Kader and El-Mougy, 2013;Ahmed et al, 2016 andEl-Sheekh, et al, 2020).…”

Section: Introductionmentioning

confidence: 75%

Commercial Algae Products as Biocide Treatments for Controlling Squash Powdery Mildew Disease

Ahmed

Selim

Sabra

et al. 2022

Alexandria Science Exchange Journal

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Fungicides considered as most effective method of controlling powdery mildew diseases on cucurbits, but there remains more than one challenge facing this method, and one of major challenges is resistance in pathogen populations, as well as their harmful impact on the ecosystem.Six commercial algae products besides green algae extract were applied to estimate their effectiveness against powdery mildew disease in squash plants under field condition during two successive seasons 2020-2021. In addition to studying the role of algal formulations used in increasing the resistance of squash plants against powdery mildew, this is through its effect on some biochemical changes within the plant, which in turn increases the plant's ability to resist disease. The results of this study showed that the correlation between the incidence of the disease and the content of the leaves of total soluble phenols is negative, and the value of this correlation reached 28%. The same result was obtained with the leaves content of total proteins, the correlation value reached 51%. PPO and acid invertase showed the same trend. In the end, we can say that the use of algal extracts and their formulations may provide an ideal choice to control powdery mildew disease on squash plants, whether by its direct effects on the disease or even through the indirect effect by increasing the level of phenolic substances and proteins as well as stimulating some enzymatic systems through which the plant can defend itself against disease.

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Section: Introductionmentioning

confidence: 75%

Commercial Algae Products as Biocide Treatments for Controlling Squash Powdery Mildew Disease

Ahmed

Selim

Sabra

et al. 2022

Alexandria Science Exchange Journal

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“…According to a report, marine algal extracts which contained eicosenoic acid as one of the major constituents showed antagonistic activity against Fusarium wilt in tomato plants (El‐Sheekh et al . 2020). Therefore, we hypothesized that the synergistic effects of these chemical constituents identified from S. chilikensis could be involved in antifungal action.…”

Section: Resultsmentioning

confidence: 99%

Biocontrol of wilt disease of rice seedlings incited by Fusarium oxysporum through soil application of Streptomyces chilikensis RC1830

Behera

Mojumdar

Behera

et al. 2022

Letters in Applied Microbiology

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Significance and Impact of the Study: This study focuses on the antifungal activity of novel Streptomyces chilikensis RC1830 and its application in the biocontrol of wilt diseases of rice seedlings by Fusarium oxysporum through soil application. Application of microbial cultures directly onto the agricultural sector as a biofertilizer is not so beneficial, so the strain RC1830 were formulated with several carrier materials for the production of portable and convenient form. The strain could be a potential development strategy as biofertilizer for economically important crops. A new whole-cell microbe-based bioformulation for plant growth promotion with antifungal properties was formulated with a shelf life of 3 months. Keywords antagonistic activity, plant growth-promoting traits, powder formulation, Streptomyces chilikensis, wilt disease of rice.

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“…The benefit of using macroalgae extracts, as a fertilizer is that it is quickly absorbed by plants within hours of use and is safe for humans, animals, and the environment [17]. Thus, macroalgae may play an important function in agriculture because they reduce the application of pesticides and fertilizers.…”

Section: Introductionmentioning

confidence: 99%

In Vitro and In Vivo Biocontrol of Tomato Fusarium Wilt by Extracts from Brown, Red, and Green Macroalgae

et al. 2022

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Fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici (FOL) in tomatoes is globally recognized as one of the most significant tomato diseases, both in fields and in greenhouses. Macroalgae contain a diversity of bioactive complexes. This research was carried out to assess the value of the extracts from three macroalgae (Sargassum dentifolium belongs to Phaeophyta, Gracilaria compressa belongs to Rhodophyta, and Ulva lactuca belongs to Chlorophyta) against wilt disease in tomato plants. The fungal pathogen was isolated from diseased tomato plants growing in several parts of Saudi Arabia. Isolates of the pathogen were identified by morphological and molecular methods. Three organic solvents, in addition to water, were used for extraction to assess the effect of reducing FOL hyphal growth on potato dextrose agar (PDA). Radial reductions in pathogen hyphal growth were seen with all of the solvent and water extracts, but the three macroalgae methanol extracts that were tested showed the greatest reduction in pathogen hyphal growth. The total phenol content of the S. dentifolium extract was higher than that of the other two macroalgae. The phenolic compounds showed variability in all of the extracts that were identified and calculated by high-performance liquid chromatography (HPLC). Phloroglucinol (7.34 mg/g dry weight), vanillic acid (7.28 mg/g dry weight), and gallic acid (6.89 mg/g dry weight) were the phenolic compounds with the highest concentrations in the S. dentifolium, G. compressa, and U. lactuca extracts, respectively. The mycelium of FOL treated with a crude macroalgae extract of tested at 100 µg/mL was examined with a scanning electron microscope. The results showed an obvious difference between the extract-treated and untreated hyphae. The extract-treated hyphae collapsed and bruised, as well as; empty and dead. In the greenhouse experiment, S. dentifolium powder was used to evaluate its effect on disease decline. It led to a decrease in disease severity of 40.8%. The highest total yield (560.8 g) was obtained from the plants treated with S. dentifolium powder. We recommend the use of macroalgae extracts to combat fungal phytopathogens. Because chemical fungicides are extremely toxic to humans and the environment, macroalgae extracts are a good alternative that can be widely and safely used in the field.

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Biological Control of Fusarium Wilt Disease of Tomato Plants Using Seaweed Extracts

Cited by 17 publications

References 32 publications

Commercial Algae Products as Biocide Treatments for Controlling Squash Powdery Mildew Disease

Commercial Algae Products as Biocide Treatments for Controlling Squash Powdery Mildew Disease

Biocontrol of wilt disease of rice seedlings incited by Fusarium oxysporum through soil application of Streptomyces chilikensis RC1830

In Vitro and In Vivo Biocontrol of Tomato Fusarium Wilt by Extracts from Brown, Red, and Green Macroalgae

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