Histopathological Observations in Guava Root during Wilting caused by<i>Fusarium</i>Species: A Scanning Electron Microscopy Study

Dwivedi, Neetu; Dwivedi, S.K.

doi:10.1080/15538362.2016.1160270

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…This trend has been observed in guava plant roots infected by Fusarium . The fungus penetrated through the root layer and through openings caused by secondary roots (Edward ; Dwivedi and Dwivedi ).…”

Section: Discussionmentioning

confidence: 99%

Reactive Oxygen Species Activity and Antioxidant Properties of Fusarium Infected Bananas

Anthony

George

Singh

et al. 2017

Journal of Phytopathology

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Fusarium infection of bananas is a global problem that threatens the production of bananas. This study looks at the effects of the infection upon the reactive oxygen species (ROS) system, as well as the induced antioxidant properties in the roots, stems, leaves and fruits. Results show that there is a greater amount of damage in infected tissue samples as opposed to non‐infected. The damage was observed to be higher in the root samples. ROS assays were divided into two classes: ROS assays and ROS‐scavenging assays. Of the ROS assays, lipoxygenase was observed to be higher in the infected samples, while peroxidase (POD) and polyphenol oxidase (PPO) were significantly higher in infected stem, leaf and fruit samples. Among root samples, there was no significant difference in POD activity and PPO was lower in infected samples. Induction of ROS is important for the hypersensitive response (HR) to function properly. The ROS‐scavenging enzymes, namely ascorbate peroxidase, guaiacol peroxidase and superoxide dismutase, exhibited higher levels in the infected tissue. This is most likely to counter the build‐up of the ROS enzymes and to prevent further cell death. The increase in ROS‐scavenging assays also correlates with higher antioxidant properties as antioxidants play a critical role in regulating the HR free radicals.

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Section: Discussionmentioning

confidence: 99%

Reactive Oxygen Species Activity and Antioxidant Properties of Fusarium Infected Bananas

Anthony

George

Singh

et al. 2017

Journal of Phytopathology

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“…Guava trees (Pisidium guajava L.,) suffer from several serious and destructive diseases at all stages of its life. Several fungi attack guava causing seedling root rots (Baiuomy et al 2003), anthracnose (Dharam and Gaur, 1973), black spot (Mishra and Sitansu, Pan, 2007), stem canker (Cardoso et al 2002, Kamhawy, 2011, stem-end rot (Mishra and Sitansu, Pan, 2007), die-back (Bokhari et al 2008, Safdar, Asma et al 2015 and wilt diseases (Pandit and Samajpati, 2002;Samajpati, 2005, Dwivedi, Neetu andDwivedi, 2016).…”

Section: Introductionmentioning

confidence: 99%

Chemical Control of Guava Die-Back and Response of Guava Cultivars to the Disease in Egypt

El-Aziz¹

2019

Arab Universities Journal of Agricultural Sciences

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Guava (Psidium guajava L.,) die-back disease caused by Botryodiplodia theobromae Pat., is a destructive disease, considered one of the most important and economic disease of guava. Amistar Top 325-32.5% E.C. gave the highest decreasing of linear growth and amount of growth of isolate code No., Q.K.4., followed by Camzin 50% W.P., Monceren 25% W.P. and Montro 30% E.C. Meanwhile, Ridomil Gold/Plus 42.50% W.P., Copral 50% W.P., Eminent 12.50% E.W. and Thiovat Jet 80% W.G. exhibited a lowest effect in reducing of linear growth and amount growth of B. theobromae isolate code No., Q.K.4. Amistar Top 325-32.5% E.C. was the most efficient fungicide in reduce disease incidence and disease severity infield of B. theobromae isolate code No., Q.K.4., followed by Camzin 50% W.P., Monceren 25% W.P., Montro 30% E.C. Meanwhile, Ridomil Gold/Plus 42.50% W.P., Copral 50% W.P., Eminent 12.50% E.W. and Thiovat Jet 80% W.G. showed a lowest efficient in reducing the disease incidence and disease severity. Soil drench method of fungicides application was the higher efficient method in elimination of percentage of disease incidence and disease severity followed by foliar spray application, relatively. Banaty transplant was the most susceptible cultivar to the all tested B. theobromae isolates, whereas cultivar Gizy Ahmr was the lowest susceptible with the same isolates, information about cultivar reaction of guava transplants against B. theobromae is still scanty.

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Screening of Psidium species and their interspecific hybrid progenies for resistance to Fusarium oxysporum f. sp. psidii and southern root-knot nematode

Vishwakarma

Vasugi

Umamaheswari

et al. 2023

South African Journal of Botany

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Histopathological Observations in Guava Root during Wilting caused byFusariumSpecies: A Scanning Electron Microscopy Study

Cited by 6 publications

References 8 publications

Reactive Oxygen Species Activity and Antioxidant Properties of Fusarium Infected Bananas

Reactive Oxygen Species Activity and Antioxidant Properties of Fusarium Infected Bananas

Chemical Control of Guava Die-Back and Response of Guava Cultivars to the Disease in Egypt

Screening of Psidium species and their interspecific hybrid progenies for resistance to Fusarium oxysporum f. sp. psidii and southern root-knot nematode

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