Potential of<i>Pseudomonas</i>and<i>Bacillus</i>Isolates as Biocontrol Agents Against Fusarium Wilt of Eggplant

Altınok, Hacer Handan; Dikilitaş, Murat; Yildiz, Hatice Nilufer

doi:10.5504/bbeq.2013.0047

Cited by 32 publications

(16 citation statements)

References 40 publications

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“…This may be due to compost comprises a substrate medium for the growth and reproduction of the two bioagents, hence increasing mode of action of two bioagents. The obtained are in the harmony with the reported results by [1], [2], [6]. [22].…”

Section: Discussionsupporting

confidence: 91%

“…Eggplant is liable to be attack by many bacterial, fungal, viral and nematode diseases as well as physiological disorder. However, Fusarium wilt is considered the major devastative and destructive disease affecting crop production of eggplant [5], [6], [22], [26]. Due to the cultivated area in Egypt is limited, therefore crop rotation is not applied and this caused great difficulties, especially in case of specific soil-borne pathogens such as eggplant Fusarium wilt.…”

Section: Introductionmentioning

confidence: 99%

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Bacterial Bioagents and Compost as Two Tools for Management of Eggplant Fusarium Wilt

Abada¹,

Attia²,

El-Fiki³

2018

FEM

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Isolation trials from the roots of wilted eggplant plants grown at five governorates yielded many fungal isolates.The isolates of the fungus F. oxysporum were selected to test their pathogenicity and Kalubia isolate was the most virulent one. The fungus was virulent to eggplant and no apparent infection was found in case of the other seven tested plants. Therefore, the fungus F. oxysporum named Fusarium oxysporum Schlecht. f. sp. melongenae Fomg. All the tested bioagents and compost tea caused significant reduction to the linear growth of F.o.f.sp. melongenae and the germinated conidiospores compared with control treatment. Adding the two tested bioagents, i.e. B. subtilis and P. fluorescens each alone or in combination to the infested soil with the causal pathogen resulted in significant reduction to eggplant wilt with significant increase to plant height as well as the number of fruits and their weight / plant compared with control treatment. Moreover, amending the soil with compost increased the efficiency of the two bioagents in reducing the disease and increasing the produced fruit yield compared with the clay soil only. In addition, the fungicide Topsin M-70 was the superior treatment in reducing the severity of the disease and increasing plant height and the produced fruit yield followed by the combination of B. subtilis and P. fluorescens. The total phenol compounds were greatly increased in the bacterial treated plants and compost as compared to the control (untreated plants with the bioagents) and those infested with the pathogen only.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Bacterial Bioagents and Compost as Two Tools for Management of Eggplant Fusarium Wilt

Abada¹,

Attia²,

El-Fiki³

2018

FEM

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“…However among the Bacillus isolates, Ba5 and Ba7 were recorded with pathogen radial inhibition of 41.4% followed by Ba1a, Ba15, Ba18, Ba19, Ba27 and Ba36 with 40% inhibition (Table 1). Observations revealed that Pseudomonas isolates showed more inhibitory effect than the Bacillus or Serratia spp in dual culture plate assay in support to the observations by Altinok et al, 2014 where P. aeruginosa (P07-1 and 85A-2) and P. putida (P11-4) inhibited 70% of the radial growth of Fusarium oxysporum f. sp. melongenae (Fomg).…”

Section: Dual Culture Agar Plate Assaysupporting

confidence: 76%

Biological Management of Vascular Wilt of Chickpea (Cicer arietinum L.) Incited by Fusarium oxysporum f. sp. ciceris by Antagonistic Rhizobacteria Co-Inoculated with Native Mesorhizobium

Kumari¹,

Khanna²

2018

Int.J.Curr.Microbiol.App.Sci

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“…Plant growth-promoting rhizobacteria isolates of Pseudomonas and Bacillus were evaluated for their volatile compound (peroxidase and polyphenol oxidase) efficacy against mycelial growth of F. oxysporum f. sp. melongenae on eggplant in vitro (Altinok et al, 2014). Studies on BCAs have been mostly limited to in vitro conditions so far, with very few pot experiments, and none conducted in the field.…”

Section: Discussionmentioning

confidence: 99%

The Effectiveness of a Dark Septate Endophytic Fungus, Cladophialophora chaetospira SK51, to Mitigate Strawberry Fusarium Wilt Disease and With Growth Promotion Activities

et al. 2020

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Strawberry Fusarium wilt, caused by the virulent fungus Fusarium oxysporum formae speciales fragariae (Fof) is a devastating soil-borne disease that causes severe production losses worldwide, including Japan. Fof is one of the top 10 fungal pathogens that threaten global crop security, and a method to effectively control this pathogen has yet to be found. This study aimed to investigate the effectiveness of dark septate endophytic (DSE) fungi against Fof to develop an efficient, effective, and environmentally friendly approach to improve plant health and fitness. A total of 19 fungal isolates were assessed, out of which three (SK47, SK48, and SK51) were selected based on their effectiveness in disease suppression in controlled growth chamber conditions using a soil system. Isolates SK47, SK48, and SK51 suppressed disease severity by 85.71, 61.90, and 90.48%, respectively. Molecular identification based on highly conserved small subunit (SSU), internal transcribed spacer (ITS), and large subunit (LSU) nrRNA regions identified these isolates as DSE Exophiala sp., Exophiala pisciphila, and Cladophialophora chaetospira, respectively. The sequences were deposited under accession numbers MN811693-MN811695 in the GenBank database. Notably, our results revealed that isolate C. chaetospira SK51 possessed superior growth promotion activities as well as disease suppression by significantly increased plant growth parameters (shoot and root dry mass, chlorophyll content, flower bud initiation, and number of fruit) in comparison to control plants and other two fungal candidates. Root colonization by C. chaetospira SK51 was visualized, and it was confirmed that the symbiosis with strawberry plants occurred successfully. Our results provide new insights in the application of DSE fungus C. chaetospira SK51 as a biocontrol agent on

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Potential ofPseudomonasandBacillusIsolates as Biocontrol Agents Against Fusarium Wilt of Eggplant

Cited by 32 publications

References 40 publications

Bacterial Bioagents and Compost as Two Tools for Management of Eggplant Fusarium Wilt

Bacterial Bioagents and Compost as Two Tools for Management of Eggplant Fusarium Wilt

Biological Management of Vascular Wilt of Chickpea (Cicer arietinum L.) Incited by Fusarium oxysporum f. sp. ciceris by Antagonistic Rhizobacteria Co-Inoculated with Native Mesorhizobium

The Effectiveness of a Dark Septate Endophytic Fungus, Cladophialophora chaetospira SK51, to Mitigate Strawberry Fusarium Wilt Disease and With Growth Promotion Activities

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