First report of Fusarium wilt of eggplant caused by <i>Fusarium oxysporum</i> f. sp. <i>melongenae</i> in Iran

Safikhani, Negin; Morid, B.; Zamanizadeh, H R

doi:10.5197/j.2044-0588.2013.028.016

Cited by 13 publications

(7 citation statements)

References 3 publications

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“…Purified, and identified depending on morphological characters and microscopically characters [14] [15]. Our result of F. oxysporum isolation from the infected eggplant was agreement with [16][17][18] which isolated the fungus from the stems of the infected eggplant plant Figure-…”

Section: Results and Discussion Pathogen Isolation And Identificationsupporting

confidence: 78%

Evaluation of Trichoderma Harzianum Biological Control Against Fusarium Oxysporum F. Sp. Melongenae

J. Kareem,

Mohsen Al-Araji

2021

Iraqi Journal of Science

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The present study was conducted to biocontrol in vitro and in vivo of Fusarium oxysporum that cause Fusarium wilt diseases for eggplant plants by using biological control agent fungus Trichoderma harzianum. Fourteen isolates from F. oxysporum were isolated and identified from two fields in Iraq. Pathogenicity test indicated that all F. oxysporum isolates were pathogenic for eggplant but differed in its level of pathogenicity. Four of the fourteen isolates from F. oxysporum were selected depending on their highest pathogenicity for eggplant plants, F. oxysporum four isolates F5, F6, F13 and F14 achieved at pre emergence 83.3%, 83.3%, 86.7% and 83.3% and at post emergence 90.0%, 90.0%, 83.3% and 76.7% respectively. In vitro, the antagonistic activity evaluation of T. harzianum against F. oxysporum four isolates revealed that T. harzianum was highly significantly inhibited F. oxysporum four isolates growth (F5, F6, F13, F14) which recorded the inhibition percentage 87.00, 89.00, 89.00, and 96.33% respectively. Greenhouse (In vivo) results of the biocontrol efficiency of T. harzianum against F. oxysporum showed significant reduction in eggplant Fusarium wilt incidence compared with pathogens control treatments. The pathogen F. oxysporum treatments with T. harzianum (TF) showed that all the treatments (TF) achieved high germination rate for eggplant seeds compared with control treatment, while the treatment TF13 was significantly superior than all other treatments in number of leaflets, stem height, shoot fresh weight, shoot dry weight, root fresh weight, root dry weight and root size which recorded 8.67, 19.00cm, 20.33gm, 4.73gm, 12.00gm, 1.53gm, 17.67cm³ respectively.

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Section: Results and Discussion Pathogen Isolation And Identificationsupporting

confidence: 78%

Evaluation of Trichoderma Harzianum Biological Control Against Fusarium Oxysporum F. Sp. Melongenae

J. Kareem,

Mohsen Al-Araji

2021

Iraqi Journal of Science

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“…Higher activities of SOD at RGS1 and RGS2 treatments compared to CK treatment, as shown in Figure 7, suggest that the RGS played an important role in stimulation of SOD activity, which prevented the plant from being injured by overproduction of ROS and pathogens. It was also demonstrated in Arabidopsis that SOD played a positive role in the regulation of cell wall biosynthesis and ROS generation, thus improving plant growth [9]. Incorporation of RGS at lower ratios (RGS1 and RGS2) also reduced the overproduction of H 2 O 2 and hence protected the plant from oxidative damage [48].…”

Section: Rgs As An Antioxidative Defense Regulatormentioning

confidence: 99%

“…Melongenae causes Fusarium wilt (Schlechtend) one of the serious diseases of eggplant. This soil-borne fungus blocks the xylem transport system, leading to the abrupt wilting and death of plants [9]. Moreover, the spores of F. oxysporum can withstand unfavorable conditions for an extended period and, therefore, alternative ecofriendly control strategies are required against this pathogen.…”

Section: Introductionmentioning

confidence: 99%

Soil Amendment with Raw Garlic Stalk: A Novel Strategy to Stimulate Growth and the Antioxidative Defense System in Monocropped Eggplant in the North of China

et al. 2019

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Garlic (Allium Sativum L.) is a vegetable with known medicinal value. It is not only rich in nutrients, but also has the ability to combat different microbial infections. This is, however, the first study to investigate the effect of soil incorporation of the raw garlic stalk (RGS) on the growth and antioxidative defense system of eggplant. The experiments were conducted in pots using soil amendments of RGS in different ratios (RGS1 1:100; RGS2 3:100; RGS3 5:100 and control (CK) 0:100 of RGS: Soil w/w) and repeated in two consecutive years (2016 and 2017). A dose-dependent response of RGS amendment was observed in the growth and physiology of the eggplant. RGS1 and RGS2 significantly enhanced the plant height, root/shoot weight, stem diameter, leaf area, root length, root activity, pigment contents (chlorophyll a, chlorophyll b, and total chlorophyll), and photosynthetic parameters, but reduced intracellular CO2 (Ci) and enhanced fruit yield as compared with the respective controls. Consistently, RGS also enhanced activities of antioxidative enzymes of eggplant reported as a defense against stress indicators. RGS in its higher ratios (RGS3), however, caused a reduction in all of the growth and physiological parameters and increased stress indicators such as hydrogen peroxide (H2O2) and malondialdehyde (MDA). Overall, RGS2 was found to be the most efficient for regulation of plant defense systems, reducing H2O2 and MDA and enhancing superoxide dismutase (SOD), peroxidase (POD), and phenylalanine ammonia–lyase (PAL) activity. It can be concluded that the appropriate ratio of RGS could efficiently promote plant growth and regulate the reactive oxygen-based plant defense system.

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“…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%

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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First report of Fusarium wilt of eggplant caused by Fusarium oxysporum f. sp. melongenae in Iran

Cited by 13 publications

References 3 publications

Evaluation of Trichoderma Harzianum Biological Control Against Fusarium Oxysporum F. Sp. Melongenae

Evaluation of Trichoderma Harzianum Biological Control Against Fusarium Oxysporum F. Sp. Melongenae

Soil Amendment with Raw Garlic Stalk: A Novel Strategy to Stimulate Growth and the Antioxidative Defense System in Monocropped Eggplant in the North of China

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

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