Biological control of<i>Botrytis cinerea,</i>the causal agent of rose gray mold disease by antagonistic fungi

Motlagh, Mohammad Reza Safari; Jafari, Nastaran

doi:10.1080/09670874.2020.1807654

Cited by 8 publications

(4 citation statements)

References 23 publications

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“…Applying beneficial microorganisms as biocontrol agents is a promising and environmentally friendly method to protect plants against diseases and reduce the use of harmful chemicals [ 21 , 30 ]. In the present study, T. muroii SD1-4, isolated from potato leaves, reduced the index of potato leaf spot disease by 41.33 when inoculated with the strain of SD1-4 compared with those only inoculated with A. alternata Li11.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, endophytic microorganisms are gained more and more popularity due to their excellent colonization efficacy and better acclimatizing potential [ 15 – 18 ]. When colonized throughout plant tissues, endophytic microorganisms can provide systemic tolerance to many plant pathogens and as endophytes interact closely with the host plant, they show great potential to promote plant growth through phytohormone regulation, phosphate solubilization and iron carrier production [ 19 – 21 ]. The endophyte Streptomyces sitangensis 136 was found to not only inhibit the growth of Sclerotium cepivorum and reduce the incidence of white rot disease, but also significantly promoted the growth of garlic plants [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

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Biocontrol potential and growth-promoting effect of endophytic fungus Talaromyces muroii SD1-4 against potato leaf spot disease caused by Alternaria alternata

Zhang,

Xu,

Zhao

et al. 2024

BMC Microbiol

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Background Alternaria alternata is the primary pathogen of potato leaf spot disease, resulting in significant potato yield losses globally. Endophytic microorganism-based biological control, especially using microorganisms from host plants, has emerged as a promising and eco-friendly approach for managing plant diseases. Therefore, this study aimed to isolate, identify and characterize the endophytic fungi from healthy potato leaves which had great antifungal activity to the potato leaf spot pathogen of A. alternata in vitro and in vivo. Results An endophytic fungal strain SD1-4 was isolated from healthy potato leaves and was identified as Talaromyces muroii through morphological and sequencing analysis. The strain SD1-4 exhibited potent antifungal activity against the potato leaf spot pathogen A. alternata Lill, with a hyphal inhibition rate of 69.19%. Microscopic and scanning electron microscope observations revealed that the strain SD1-4 grew parallel to, coiled around, shrunk and deformed the mycelia of A. alternata Lill. Additionally, the enzyme activities of chitinase and β-1, 3-glucanase significantly increased in the hyphae of A. alternata Lill when co-cultured with the strain SD1-4, indicating severe impairment of the cell wall function of A. alternata Lill. Furthermore, the mycelial growth and conidial germination of A. alternata Lill were significantly suppressed by the aseptic filtrate of the strain SD1-4, with inhibition rates of 79.00% and 80.67%, respectively. Decrease of leaf spot disease index from 78.36 to 37.03 was also observed in potato plants treated with the strain SD1-4, along with the significantly increased plant growth characters including plant height, root length, fresh weight, dry weight, chlorophyll content and photosynthetic rate of potato seedlings. Conclusion The endophyte fungus of T. muroii SD1-4 isolated from healthy potato leaves in the present study showed high biocontrol potential against potato leaf spot disease caused by A. alternata via direct parasitism or antifungal metabolites, and had positive roles in promoting potato plant growth.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biocontrol potential and growth-promoting effect of endophytic fungus Talaromyces muroii SD1-4 against potato leaf spot disease caused by Alternaria alternata

Zhang,

Xu,

Zhao

et al. 2024

BMC Microbiol

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“…B. cinerea isolates were found resistant to many single, and sometimes, several classes of fungicides in commercial rose shipments (Muñoz et al, 2019). Biological control agents such as fungi or bacteria are also alternatives as they disturb B. cinerea hyphae development and induce systemic resistance (Zhao et al, 2018;Calderoń et al, 2019;Nakkeeran et al, 2020;South et al, 2020;Motlagh and Jafari, 2022).…”

Section: Botrytismentioning

confidence: 99%

Effect of preharvest conditions on cut-flower quality

Verdonk,

van Ieperen,

Carvalho

et al. 2023

Front. Plant Sci.

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The cut flower industry has a global reach as flowers are often produced in countries around the equator and transported by plane or ship (reefer) mostly to the global north. Vase-life issues are often regarded as linked to only postharvest conditions while cultivation factors are just as important. Here, we review the main causes for quality reduction in cut flowers with the emphasis on the importance of preharvest conditions. Cut flower quality is characterised by a wide range of features, such as flower number, size, shape, colour (patterns), fragrance, uniformity of blooming, leaf and stem colour, plant shape and developmental stage, and absence of pests and diseases. Postharvest performance involves improving and preserving most of these characteristics for as long as possible. The main causes for cut flower quality loss are reduced water balance or carbohydrate availability, senescence and pest and diseases. Although there is a clear role for genotype, cultivation conditions are just as important to improve vase life. The role of growth conditions has been shown to be essential; irrigation, air humidity, and light quantity and quality can be used to increase quality. For example, xylem architecture is affected by the irrigation scheme, and the relative humidity in the greenhouse affects stomatal function. Both features determine the water balance of the flowering stem. Light quality and period drives photosynthesis, which is directly responsible for accumulation of carbohydrates. The carbohydrate status is important for respiration, and many senescence related processes. High carbohydrates can lead to sugar loss into the vase water, leading to bacterial growth and potential xylem blockage. Finally, inferior hygiene during cultivation and temperature and humidity control during postharvest can lead to pathogen contamination. At the end of the review, we will discuss the future outlook focussing on new phenotyping tools necessary to quantify the complex interactions between cultivation factors and postharvest performance of cut flowers.

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“…Therefore, alternatives have been sought to eliminate or reduce the use of synthetic chemicals to control B. cinerea , including the use of microbial agents such as Trichoderma harzianum [ 17 ], T. viride , T. virens [ 18 ], Ulocladium spp. [ 19 ], Clonostachys rosea [ 20 ], Gliocladium catenulatum , Saccharomyces cerevisiae , Wickerhamomyces anomalus , Metschnikowia pulcherrima , and Aureobasidium pullulans [ 21 , 22 ], as well as diverse plant growth-promoting bacterial species (PGPB) [ 11 , 23 , 24 , 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Agroecological Management of the Grey Mould Fungus Botrytis cinerea by Plant Growth-Promoting Bacteria

Orozco-Mosqueda

Kumar

Fadiji

et al. 2023

Plants

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Botrytis cinerea is the causal agent of grey mould and one of the most important plant pathogens in the world because of the damage it causes to fruits and vegetables. Although the application of botrycides is one of the most common plant protection strategies used in the world, the application of plant-beneficial bacteria might replace botrycides facilitating agroecological production practices. Based on this, we reviewed the different stages of B. cinerea infection in plants and the biocontrol mechanisms exerted by plant-beneficial bacteria, including the well-known plant growth-promoting bacteria (PGPB). Some PGPB mechanisms to control grey mould disease include antibiosis, space occupation, nutrient uptake, ethylene modulation, and the induction of plant defence mechanisms. In addition, recent studies on the action of anti-Botrytis compounds produced by PGPB and how they damage the conidial and mycelial structures of the pathogen are reviewed. Likewise, the advantages of individual inoculations of PGPB versus those that require the joint action of antagonist agents (microbial consortia) are discussed. Finally, it should be emphasised that PGPB are an excellent option to prevent grey mould in different crops and their use should be expanded for environmentally friendly agricultural practices.

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Biological control ofBotrytis cinerea,the causal agent of rose gray mold disease by antagonistic fungi

Cited by 8 publications

References 23 publications

Biocontrol potential and growth-promoting effect of endophytic fungus Talaromyces muroii SD1-4 against potato leaf spot disease caused by Alternaria alternata

Biocontrol potential and growth-promoting effect of endophytic fungus Talaromyces muroii SD1-4 against potato leaf spot disease caused by Alternaria alternata

Effect of preharvest conditions on cut-flower quality

Agroecological Management of the Grey Mould Fungus Botrytis cinerea by Plant Growth-Promoting Bacteria

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