Control of Fusarium Wilt of Cucumber Seedlings by Inoculation with an Arbuscular Mycorrhical Fungus

Hao, Zhipeng; Christie, Peter; Qin, Ling; Wang, Changxian; Li, Xiaolin

doi:10.1080/01904160500310997

Cited by 44 publications

(28 citation statements)

References 32 publications

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“…Mathur and Vyas [28] showed a considerable increase in PPO activity in AM fungus (Glomus fasciculatum) inoculated Ziziphus xylopyrus. Hao et al [29] also suggested an increase in PPO activity with mycorrhizal inoculation as a defense mechanism of plants.…”

Section: Mycorrhizal Colonizationmentioning

confidence: 95%

Antioxidant Enzyme Activities in Arbuscular Mycorrhizal (Glomus intraradices) Fungus Inoculated and Non-inoculated Maize Plants Under Zinc Deficiency

et al. 2011

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A greenhouse experiment was conducted to examine the changes in antioxidant enzyme activities of arbuscular mycorrhizal (AM) fungus Glomus intraradices Schenck and Smith inoculated (M+) and non-inoculated (M-) maize (Zea mays L.) plants (variety COHM5) under varying levels of zinc (0, 1.25, 2.5, 3.75 and 5.0 mg kg(-1)). Roots and shoots sampled at 45 days after sowing (DAS) were estimated for its antioxidant enzymes (superoxide dismutase, peroxidase) IAA oxidase, polyphenol oxidase, acid phosphatase and nutritional status especially P and Zn concentrations. Mycorrhizal inoculation significantly (P ≤ 0.01) increased all the four antioxidant enzymes in both roots and shoots at 45 DAS regardless of Zn levels. All enzyme activities except SOD increased progressively with increasing levels of Zn under M+ and M- conditions. The SOD activity got decreased in roots and shoots at 2.5 and 3.75 mg Zn kg(-1). Acid phosphatase activity in M+ roots and shoots were higher in all levels of Zn but the values decreased with increasing levels of Zn particularly in roots. Mycorrhizal fungus inoculated plants had higher P and Zn concentrations in both stages in comparison to non-inoculated plants. Our overall data suggest that mycorrhizal symbiosis plays a vital role in enhancing activities of antioxidant enzymes and nutritional status that enables the host plant to sustain zinc deficient conditions.

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Section: Mycorrhizal Colonizationmentioning

confidence: 95%

Antioxidant Enzyme Activities in Arbuscular Mycorrhizal (Glomus intraradices) Fungus Inoculated and Non-inoculated Maize Plants Under Zinc Deficiency

et al. 2011

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“…The evaluation of Fusarium wilt disease was conducted three weeks after inoculation by determining the percentage of disease severity according to Hao et al (2005). The following 0 to 5 scales was used: 0 -without symptoms 1 -leaf chlorosisand plant wilt less than 25% 2 -leaf chlorosisand plant wilt from 25 to 50% 3 -leaf chlorosisand plant wilt from 51 to 75% 4 -leaf chlorosisand plant wilt from 76 to 100% 5 -dead or fully destroyed plant where: n i = the number of the samples with the same olisease scale; v i = the olisease scale for every sample; N = total samples in each replications; V = maximum olisease scale.…”

Section: Evaluation Methods Of Fusarium Wiltmentioning

confidence: 99%

Effectiveness of the chemical stabilizers of Talaromyces flavus in biological control of tomato and greenhouse cucumber vascular wilt disease

Bahramian¹,

Naraghi²,

Heydari³

2016

Journal of Plant Protection Research

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Fungal antagonist, Talaromyces flavus, is one of the most important biological agents of soil-borne fungal diseases including Verticillium and Fusarium wilt. In this study, to increase the effectiveness of T. flavus isolates obtained from greenhouse cucumbers and field grown tomatoes five chemical stabilizers were evaluated. Based on the results of previous studies, the most effective substrate for the growth, sporulation and stability of T. flavus isolates related to the above-mentioned plants was a mix of rice bran and peatmoss. Different chemical stabilizers were mixed with the above-mentioned substrate containing spore suspensions of various T. flavus isolates. For each plant, a completely randomized experiment was conducted under greenhouse conditions with seven treatments and three replications. The results of this study indicated that treatments containing sodium nitrate and D-cycloserine were more effective than those containing other stabilizers. The overall results of this study suggest that the use of some chemical stabilizers may enhance the biocontrol potential of fungal antagonists in controlling different plant diseases including Verticillium and Fusarium wilt.

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“…Flowers are open for a single day and are visited by a variety of generalist pollinators including honey bees (Apis mellifera, Apidae; see Plate 1), bumble bees (Bombus spp., Apidae), a variety of solitary bees (e.g., Halictidae, Andrenidae), butterflies, and hover-flies (Syrphidae). Cucumis sativus is commonly colonized by AMF, and the symbioses have been shown to affect flowering, fruit production, photosynthesis rates, and disease resistance (Trimble and Knowles 1995, Valentine et al 2001, Hao et al 2005.…”

Section: Study Systemmentioning

confidence: 99%

Herbivory reduces plant interactions with above‐ and belowground antagonists and mutualists

Barber

Adler

Theis

et al. 2012

Ecology

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Abstract. Herbivores affect plants through direct effects, such as tissue damage, and through indirect effects that alter species interactions. Interactions may be positive or negative, so indirect effects have the potential to enhance or lessen the net impacts of herbivores. Despite the ubiquity of these interactions, the indirect pathways are considerably less understood than the direct effects of herbivores, and multiple indirect pathways are rarely studied simultaneously. We placed herbivore effects in a comprehensive community context by studying how herbivory influences plant interactions with antagonists and mutualists both aboveground and belowground. We manipulated early-season aboveground herbivore damage to Cucumis sativus (cucumber, Cucurbitaceae) and measured interactions with subsequent aboveground herbivores, root-feeding herbivores, pollinators, and arbuscular mycorrhizal fungi (AMF). We quantified plant growth and reproduction and used an enhanced pollination treatment to determine if plants were pollen limited. Increased herbivory reduced interactions with both antagonists and mutualists. Plants with high levels of early herbivory were significantly less likely to suffer leaf damage later in the summer and tended to be less attacked by root herbivores. Herbivory also reduced pollinator visitation, likely due to fewer and smaller flowers, and reduced AMF colonization. The net effect of herbivory on plant growth and reproduction was strongly negative, but lower fruit and seed production were not due to reduced pollinator visits, because reproduction was not pollen limited. Although herbivores influenced interactions between plants and other organisms, these effects appear to be weaker than the direct negative effects of early-season tissue loss.

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Control of Fusarium Wilt of Cucumber Seedlings by Inoculation with an Arbuscular Mycorrhical Fungus

Cited by 44 publications

References 32 publications

Antioxidant Enzyme Activities in Arbuscular Mycorrhizal (Glomus intraradices) Fungus Inoculated and Non-inoculated Maize Plants Under Zinc Deficiency

Antioxidant Enzyme Activities in Arbuscular Mycorrhizal (Glomus intraradices) Fungus Inoculated and Non-inoculated Maize Plants Under Zinc Deficiency

Effectiveness of the chemical stabilizers of Talaromyces flavus in biological control of tomato and greenhouse cucumber vascular wilt disease

Herbivory reduces plant interactions with above‐ and belowground antagonists and mutualists

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