Pathogenicity and Detection of Phytohormone (Gibberellic Acid and Indole Acetic Acid) Produced by Fusarium spp. that Causes Twisted Disease in Shallot

Lestiyani, Ayu; Wibowo, Arif; Subandiyah, Siti

doi:10.25077/jpt.5.1.24-33.2021

Cited by 7 publications

(12 citation statements)

References 24 publications

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“…The effect of different treatments in this study on biochemical changes was assayed and tabulated in Table (7 (Junaidi andBolhassan, 2017 andLestiyani et al, 2021) and Gibberellic acid (Ben Rhouma et al, 2020 andLestiyani et al, 2021).…”

Section: -Biochemical Changesmentioning

confidence: 99%

Chaetomium globosum: a potential biocontrol agent for root rot of date palm seedlings

Lewaa,

zakaria

2023

Egyptian Journal of Phytopathology

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The date palm has economic importance in the world, especially in the Middle East. In this investigation, the effect of three different Chaetomium species on infected date palm plants with different fungal pathogens i.e., Rhizoctonia solani, Fusarium oxysporum, F. chlamydosporum, and F. solani was studied. Pathogenicity tests of root rot pathogens on date palm seedlings were carried out, F. oxysporum was the most virulent isolate which gave the highest percentage of diseases incidence after 45 days (55.5%) while the least virulent isolate was F. solani 1 and F. verticillioides which gave (11.7 %). Nine isolates of Chaetomium spp. suppressed the radial growth of root rot pathogens. The mode of action of Chaetomium isolates towards pathogens varied, some isolates suppressed the growth of the pathogens while others showed moderate inhibition of the mycelial growth of pathogens. C. globosum isolate No. 2 was chosen depending on the antagonism test that gave a highly significant growth reduction of the pathogen. C. globosum isolate No. 2 was the best isolate in controlling root rot disease incidence. Biochemical changes in the treated plants, phenol, indol acetic acid and polyphenol oxidase enzyme (PPO) activity were decreased in infected plants with the tested fungal pathogens, however, were increased in plants treated with C. globosum and in plants treated with a mixture of fungi and C. globosum compared with control and fungicide treatments. Chlorophyll a and b were increased in plants treated with a mixture of the tested fungi and C. globosum compared with all, while carotenoids were increased in infected plants with F. solani, R. solani, and F. oxysporum, respectively compared with other treatments. CAT enzyme activity was increased in infected plants with any of F. solani, F. oxysporum and R. solani.

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Section: -Biochemical Changesmentioning

confidence: 99%

Chaetomium globosum: a potential biocontrol agent for root rot of date palm seedlings

Lewaa,

zakaria

2023

Egyptian Journal of Phytopathology

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“…The pathogen used for inoculation was Fusarium acutatum as it has the highest virulence among other twisted-causing pathogens (Lestiyani et al, 2021). F. acutatum isolates were grown on Potato Dextrose Agar (PDA) medium for seven days, then the spores were harvested and suspended to obtain a spore density of 10 6 CFU/ml.…”

Section: Pathogen Inoculationmentioning

confidence: 99%

“…These pathogens species have different roles in the onset of the symptoms. The infection of F. solani and F. acutatum caused wilting symptoms on plants, F. solani, F. oxysporum and F. acutatum caused tuber rotting, while the typical symptoms of twisted (leaf twisting and wilting) were caused by F. solani and F. acutatum (Lestiyani et al, 2021). The biological control agent widely used by growers and proven to suppress disease in shallots is Trichoderma spp.…”

Section: Introductionmentioning

confidence: 99%

Induced Resistance Mechanism of Twisted Disease Suppression of Shallot by Bacillus spp.

Wulan

Wibowo

Joko

et al. 2022

JPTI

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Plant Growth Promoting Rhizobacteria has been known for its ability to induce plant resistance on shallot against twisted disease. Its ability as a bioprotectant agent is estimated to be comparable to the efficacy of Trichoderma which is currently widely used as a biological control agent.. This study aims to determine the content of jasmonic acid, salicylic acid, peroxidase, and disease suppression in shallot by application of Bacillus velezensis B-27, Bacillus cereus RC76, and application with combination of both rhizobacteria. The application was carried out with tuber dipping for 30 minutes in each treatment with a bacterial density of 108 CFU mL-1. Application using Trichoderma was used as the comparison treatment, and the control plot was not given any treatment. Pathogen inoculation was carried out simultaneously as planting using Fusarium acutatum with a spore density of 106 CFU mL-1. The jasmonic and salicylic acids content was measured using the High-Performance Liquid Chromatography method, and the peroxidase content was determined using the spectrophotometric method. Disease suppression was measured at 10-day intervals. The results showed that treatment with Bacillus cereus RC76 increased jasmonic and salicylic acid levels, while application with Bacillus velezensis B-27 showed the highest level of peroxidase. Treatments with Bacillus spp. were able to suppress twisted disease by 72.2% to 100%. This study demonstrated that application Bacillus spp. suppressed twisted disease on shallot and increased the jasmonic and salicylic acid content as induced resistance mechanism against pathogens.

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“…Another pathogen Gibberella moniliformis was reported to produce overlapping symptoms of twisting and abnormal neck elongation in onions due to the excessive accumulation of gibberellins 17 . Lestiyani et al 18 reported onion twister is caused by Fusarium oxysporum, F. solani, and F. acutatum . Though, each species playing different role in symptom development i.e., F. solani and F. acutatum causes wilting; F. solani, F. acutatum or F. oxysporum causes bulb rotting, the twisting symptoms were caused by F. solani or F. acutatum .…”

Section: Introductionmentioning

confidence: 99%

Insights into the cumulative effect of Colletotrichum gloeosporioides and Fusarium acutatum causing anthracnose-twister disease complex of onion

Dutta,

Jayalakshmi,

Kumar

et al. 2024

Sci Rep

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Colletotrichum is an important plant pathogenic fungi that causes anthracnose/-twister disease in onion. This disease was prevalent in the monsoon season from August to November months and the symptoms were observed in most of the fields. This study aimed to investigate the pathogenicity and cumulative effect, if any of Colletotrichum gloeosporioides and Fusarium acutatum. The pot experiment was laid out to identify the cause responsible for inciting anthracnose-twister disease, whether the Colletotrichum or Fusarium or both, or the interaction of pathogens and GA3. The results of the pathogenicity test confirmed that C. gloeosporioides and F. acutatum are both pathogenic. C. gloeosporioides caused twisting symptoms independently, while F.acutatum independently caused only neck elongation. The independent application of GA3 did not produce any symptoms, however, increased the plant height. The combined treatment of C. gloeosporioides and F. acutatum caused twisting, which enhanced upon interaction with GA3 application giving synergistic effect. The acervuli were found in lesions infected with C. gloeosporioides after 8 days of inoculation on the neck and leaf blades. Symptoms were not observed in untreated control plants. Koch's postulates were confirmed by reisolating the same pathogens from the infected plants.

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Pathogenicity and Detection of Phytohormone (Gibberellic Acid and Indole Acetic Acid) Produced by Fusarium spp. that Causes Twisted Disease in Shallot

Cited by 7 publications

References 24 publications

Chaetomium globosum: a potential biocontrol agent for root rot of date palm seedlings

Chaetomium globosum: a potential biocontrol agent for root rot of date palm seedlings

Induced Resistance Mechanism of Twisted Disease Suppression of Shallot by Bacillus spp.

Insights into the cumulative effect of Colletotrichum gloeosporioides and Fusarium acutatum causing anthracnose-twister disease complex of onion

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