Effect of some biocontrol factors and their efficacy in resistance to Fusarium wilt disease caused by Fusarium oxysporum f.sp. cucumerinum on cucumber plant under open field conditions

Abed, Jassim M.; Farhan, Theyab A.; Kadhum, Ali A.; Abed, Mohamed M.; Zaki, Noor A.; Edbeib, Mohammed F.

doi:10.1063/1.5125535

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…Moreover, the bio-resistant T. harzianum demonstrates proficiency in enzyme production, including Cellulase, Chitinases, Glucanases, Proteinases, and Xylanases. These enzymes act on lysates of pathogenic fungal cell walls and possess direct parasitic capabilities against pathogens [15,16]. Regarding the impact of the Uniform pesticide on mitigating infection severity, it serves as a systemic fungicide comprising two active components, Azoxystrobin and Metalaxyl.…”

Section: Evaluation Of Chemical Root Stimulants On Infection Severity...mentioning

confidence: 99%

Evaluation of Chemical Stimulators for Enhancing Pepper (Capsicum annum) Root Defense Against Rhizoctonia solani

Abed,

Zaki,

Ibade

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The field experiment conducted in 2023 within the greenhouse of the College of Agriculture, University of Anbar aimed to investigate the impact of various chemical root stimulants against Rhizoctonia solani on hot pepper Capsicum annum L. and their influence on selected vegetative and chemical traits. Results revealed that all treatments contributed to a distinguished reduction in infection severity compared to the pathogenic, with reductions to 0.0% observed in Inicium + Copper, Cinnamomum verum powder and T.harzianum treatments, followed by an 11% reduction in the Disper Root GS + Copper treatment. Conversely, the Control Phyte Si treatment exhibited a 19.4% reduction compared to the pathogenic 91.6%. This phenomenon manifested in vegetative characteristics as plant height, and wet and dry weight of foliage and root. Analogous impacts were noted in biochemical metrics such as chlorophyll content (SPAD), peroxidase enzyme activity, and phenol concentration in pepper foliage. This experiment can be used as an alternative method for managing the disease in place of chemicals.

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Section: Evaluation Of Chemical Root Stimulants On Infection Severity...mentioning

confidence: 99%

Evaluation of Chemical Stimulators for Enhancing Pepper (Capsicum annum) Root Defense Against Rhizoctonia solani

Abed,

Zaki,

Ibade

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

View full text Add to dashboard Cite

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“…is a soil-borne pathogen that tolerates unfavorable environmental conditions and infects plants at all growth stages. Fusarium wilt is one of the most widespread and important diseases that cause wilting, rotting and seedlings damping-off in several economically important plant species such as sunflower [6,[18][19].…”

Section: Introductionmentioning

confidence: 99%

Methyl Jasmonate Improves Superoxide Dismutase Activity in Infected Sunflower Plants

A Zaki,

O Alfalahi

2023

E3S Web Conf.

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Methyl jasmonate (Meja) is a volatile phythormone that contributes many plant critical processes, especially under biotic and abiotic stresses. Thus, Meja found to effectively regulating the biosynthesis of other plant hormones and/or enzymes, like Superoxide Dismutase (SOD). However, Meja specifically affects the plant antioxidant defense system, particularly SOD activity are still an area of ongoing research. The current results pointed to a clear effect of the applied Meja concentration in shaping the entire response to the biotic oxidative stress resulted from the three pathogenic fungi Fusarium solani. and Macrophomina phaseolina. The higher concentration of Meja had a greater effect on both gene expression and SOD enzymatic activity, which indicates the Meja importance in stimulating the defense system of sunflower varieties through which sunflower plants deal with the excessive production of reactive oxygen species (ROS) in response to the pathogenic infection. The different varieties showed different ability to cope with biotic stress represented by the three used pathogenic fungi, especially the antioxidants enzymatic activity. Sakha variety proved to have the most effective SOD enzymatic activity compared to the other two Ishaqi and Aqmar sunflower varieties. Meja concentrations in its maximum level (3 μM), was more effective in stimulating the antioxidant activity in term of enzymatic activity of SOD. Notably, R. solani had a greater effect on the antioxidant defense system, as it resulted in higher levels of SOD enzymatic activity in the three sunflower varieties. Further investigation maybe required to better understand the Meja ability to promote the plant antioxidant system, thus the possible protective mechanisms against plant pathogens.

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Investigation of the Fusarium oxysporum-caused watermelon wilt infection and testing of some hybrids' susceptibility to infection

Saleh

Abed

2023

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This study was conducted in the College of Agriculture, the University of Anbar, which aimed to diagnose the Fusarium oxysporium. The field survey results showed the spread of the disease in all areas for the seasons 2020-2021 and 2021-2022 in the governorates of Anbar, Baghdad, Salah al-Din, and Babylon. The infection rate ranged from 20-66%. The infection rate ranged from 20-66%, and the results of the phenotypic and molecular diagnosis showed the presence of the Fusarium oxysporium in the isolated samples. The results of the hybrid sensitivity test ( Jocker, Natasha, Pasha) for the three most pathogenic isolates, as all the hybrids were sensitive to highly pathogenic fungi, and the isolates were All of them are highly pathogenic. Keywords: Fusarium wilt, watermelon, hybrids, sensitivity

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Effect of some biocontrol factors and their efficacy in resistance to Fusarium wilt disease caused by Fusarium oxysporum f.sp. cucumerinum on cucumber plant under open field conditions

Cited by 3 publications

References 10 publications

Evaluation of Chemical Stimulators for Enhancing Pepper (Capsicum annum) Root Defense Against Rhizoctonia solani

Evaluation of Chemical Stimulators for Enhancing Pepper (Capsicum annum) Root Defense Against Rhizoctonia solani

Methyl Jasmonate Improves Superoxide Dismutase Activity in Infected Sunflower Plants

Investigation of the Fusarium oxysporum-caused watermelon wilt infection and testing of some hybrids' susceptibility to infection

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