Tackling Control of a Cosmopolitan Phytopathogen: Sclerotinia

O’Sullivan, Cathryn A.; Belt, Katharina; Thatcher, Louise F.

doi:10.3389/fpls.2021.707509

Cited by 47 publications

(43 citation statements)

References 163 publications

(324 reference statements)

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“…Particularly, we examined the antimicrobial activity of these EOs against a broad-spectrum fungal plant pathogen Sclerotinia sclerotiorum, that severely curtails the yield potential of diverse plant species including dry bean, soybean, canola, sunflower, peanut, etc. [25][26][27]. To identify the constituent phytochemicals of EOs, their chemical characterization was performed using analytical methods including HPTLC, GC-MS, and FT-IR.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Potential of Essential Oils from Aromatic Plant Ocimum sp.; A Comparative Biochemical Profiling and In-Silico Analysis

et al. 2022

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Medicinal and aromatic plants (MAPs) are a rich source of bioactive compounds that are immensely important due to their potential use in pharmacological and agricultural applications. Here, we have evaluated the antimicrobial activity of essential oils (EOs) from three different species of Ocimum: O. gratissimum (EO1), O. tenuiflorum (EO2), and O. sanctum (EO3). The EOs were screened for antibacterial activity against pathogenic strains of Escherichia coli, Enterobacter cloacae and methicillin-resistant Staphylococcus aureus (MRSA). The essential oils EO1 and EO3 showed significant growth inhibition of the tested bacteria. Likewise, all EOs exhibited antifungal potential against the broad-spectrum plant fungal pathogen Sclerotinia sclerotiorum that causes white-mould disease in plants. Moreover, the antimicrobial potential of the EOs correlates well with their antioxidant activity determined by DPPH free radical scavenging activity. The biochemical analysis of the EOs employing high-performance thin-layer chromatography, gas chromatography-mass spectrometry, and Fourier transform infrared spectroscopy, revealed the presence of distinct phytoconstituents that might be responsible for their differential bioactivity. Furthermore, an in-silico evaluation of the candidate phytoconstituents using molecular docking analysis suggests their potential for antimicrobial applications. Altogether, our results clearly show that EO1 and EO3 possess promising antimicrobial properties, and therefore could be utilized as a potential antimicrobial agent.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial Potential of Essential Oils from Aromatic Plant Ocimum sp.; A Comparative Biochemical Profiling and In-Silico Analysis

et al. 2022

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“…S. sclerotiorum is one of the aggressive pathogens that is difficult to control. An integrated management tactic combining various methods is advised to reduce their risk of losses from the disease [33]. Host resistance is the first line of desirable approaches to control the disease.…”

Section: Discussionmentioning

confidence: 99%

Cosmos white rot: First characterization, physiology, host range, disease resistance, and chemical control

et al. 2022

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A new disease of Cosmos sulphureus Cav. causing external and internal stem discoloration, premature death, and wilting was observed in 27.8% of plants with an average disease severity rating of 4.4 in Gazipur, Bangladesh.Morphological, pathological, and molecular analyses identified the isolated fungus as Sclerotinia sclerotiorum (Lib) de Bary, the causative agent of white rot disease. The optimum growth and sclerotium formation of S. sclerotiorum occurred at 20°C and pH 5.0, while glucose, peptone, yeast extract, casein, and ascorbic acid were the appropriate nutrient sources. Furthermore, mycelial growth and sclerotial development were favored in media containing potassium, magnesium, calcium, and sodium. As many as 20 plant species of 10 families;

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“…More than $200 million in annual losses associated with white mold has been reported in the United States since 2000 [11,12]. Other phytopathogenic members of the genus Sclerotinia can also cause rots, such as Sclerotinia minor and Sclerotinia trifolium, but these are not as important as S. sclerotiorum [13].…”

Section: The White Mold Diseasementioning

confidence: 99%

“…The different aspects of plant resistance have been recently reviewed by O'Sullivan et al and Wang et al Numerous efforts have been and are still being made to develop sclerotinia-resistant crops. Conventional and molecular breeding relying on natural sources of resistance has so far been challenging because of the multiple minor genes that contribute resistance against S. sclerotiorum [13]. Recent progress made by Wang et al has broadened our understanding of the genetic architecture underlying the quantitative resistance to S. sclerotiorum, by describing candidate resistance genes and classifying these potential gene targets with regards to their implications in different stages of the defense process.…”

Section: Plant Disease Resistance Against White Moldmentioning

confidence: 99%

Combining Desirable Traits for a Good Biocontrol Strategy against Sclerotinia sclerotiorum

Albert

Dumonceaux²,

Carisse³

et al. 2022

Microorganisms

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The fungal pathogen Sclerotinia sclerotiorum (Helotiales: Sclerotiniaceae) causes white mold, a disease that leads to substantial losses on a wide variety of hosts throughout the world. This economically important fungus affects yield and seed quality, and its control mostly relies on the use of environmentally damaging fungicides. This review aimed to present the latest discoveries on microorganisms and the biocontrol mechanisms used against white mold. A special focus is put on the identification of biocontrol desirable traits required for efficient disease control. A better understanding of the mechanisms involved and the conditions required for their action is also essential to ensure a successful implementation of biocontrol under commercial field conditions. In this review, a brief introduction on the pathogen, its disease cycle, and its main pathogenicity factors is presented, followed by a thorough description of the microorganisms that have so far demonstrated biocontrol potential against white mold and the mechanisms they use to achieve control. Antibiosis, induced systemic resistance, mycoparasitism, and hypovirulence are discussed. Finally, based on our actual knowledge, the best control strategies against S. sclerotiorum that are likely to succeed commercially are discussed, including combining biocontrol desirable traits of particular interest.

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Tackling Control of a Cosmopolitan Phytopathogen: Sclerotinia

Cited by 47 publications

References 163 publications

Antimicrobial Potential of Essential Oils from Aromatic Plant Ocimum sp.; A Comparative Biochemical Profiling and In-Silico Analysis

Antimicrobial Potential of Essential Oils from Aromatic Plant Ocimum sp.; A Comparative Biochemical Profiling and In-Silico Analysis

Cosmos white rot: First characterization, physiology, host range, disease resistance, and chemical control

Combining Desirable Traits for a Good Biocontrol Strategy against Sclerotinia sclerotiorum

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