Selective response of Ricinus communis seedlings to soil borne Rhizoctonia infection

Bittsanszky, Andrâs; Deepak, S. A.; Oros, Gyula

doi:10.19040/ecocycles.v1i1.26

Cited by 3 publications

(1 citation statement)

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“…The formation of glutathione adducts catalyzed by GST is usually the first step of deterioration [21]. The level of GST increased in okra [22] and ricinus [23] seedlings damaged by soil-borne Rhizoctonia, suggesting activation of glutathione conjugation system in defense mechanisms counteracting invasion and eliminating grave consequences of the infection. The deteriorative capacity of plant and associated microbes is related to the tolerance of host plant to the pathogen.…”

Section: Introductionmentioning

confidence: 99%

Response of Arabidopsis Clones to Toxic Compounds Released by Various Rhizoctonia Species

Oros¹,

Bittsanszky²,

Pilinszky³

2014

AJPS

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Response of 3 Arabidopsis clones to 41 strains of eight Rhizoctonia species was studied in model experiments. The seed germination was decelerated in most of the cases, although the inhibitory effect varied within large limits. The pre-emergence damping off and root neck rot leading to damping off were the most frequent symptoms of disease syndrome caused by toxic metabolites. The clone transformed with cDNA clone overexpressing gstf4 gene exhibited significantly improved tolerance as compared to parental one, meanwhile the sensitivity of Dmannose pyrophosphorylase/mannose-1-pyrophosphatase deficient clone dramatically increased. Strains of R. solani of AG-2, AG-4 and AG-7 and Athelia rolfsii produced the most toxic metabolites, however, no strict relationships were revealed between taxonomic position of Rhizoctonia strains and toxicity of their metabolites.

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Section: Introductionmentioning

confidence: 99%

Response of Arabidopsis Clones to Toxic Compounds Released by Various Rhizoctonia Species

Oros¹,

Bittsanszky²,

Pilinszky³

2014

AJPS

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Waitea circinata var. zeae Causing Root Rot of Cabbage and Oilseed Rape

et al. 2021

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Cabbage, a widely used and popular vegetable, and oilseed rape, the second most valuable oilseed crop in the world, are two important species from the Brassicaceae family. Two geographically separated outbreaks of cabbage and oilseed rape root rot with estimated incidence of 15% and 20%, respectively, were recorded during 2017 in the Vojvodina region, Serbia. Twelve hyphal-tip isolates were obtained from symptomatic cabbage and oilseed rape plants and identified as Waitea circinata var. zeae based on morphological and molecular features. This indicates that W. circinata var. zeae has expanded its host range to the Brassicaceae family. Sequence analyses of ITS and LSU of the rDNA, RPB2, and β-tubulin genes revealed the highest similarity with multiple W. circinata var. zeae. Neighbor-joining analyses of ITS sequences resulted in a phylogenetic tree with one well-defined branch of W. circinata var. zeae, with two separate groups. All Serbian isolates and the majority of isolates originating from natural infection of dicotyledonous plants grouped together in Group I. Following artificial inoculation, W. circinata var. zeae isolates caused mild to medium root necrosis of seedlings of 2 monocotyledonous and 12 dicotyledonous plant species, implying a wider host range than known for W. circinata var. zeae. Additionally, this is the first occurrence of W. circinata var. zeae on dicotyledonous host plants in Europe. As cabbage and oilseed rape are important crops grown worldwide, the occurrence of this new soil-borne pathogen with a broad host range imposes the necessity for changes in routine disease control practice, particularly crop rotation.

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Varietal dependent response of barley to soil-borne Waitea circinata infection

Oros

2015

Acta agrar. Debr.

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The disease syndrome caused by Waitea circinata, a soil-borne pathogen introduced in the past decade into Carpathian basin, visually indistinguishable of those caused by various Rhizoctonia strains in diverse host plant. Dicotyledonaceous species in general proved to be more tolerant to this new pathogen than monotyledonaceous ones. This mesophilic fungus can seriously damage cereals. The barley varieties, similarly to other plants, exhibited highly different individual reaction to soil borne infection, Bivoy being the most while Maresi the less tolerant among the 9 tested varieties. Two groups could be separated on the base of their response to Rhizoctonia; Jubilant, Bivoy, Pasadena formed one group being moderately tolerant and Anabell, Scarlett, Rex and Omega the other group of more susceptibles. Three significant factors influence on the virulence of Rhizoctonia strains comprised 62% of total variation.

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Selective response of Ricinus communis seedlings to soil borne Rhizoctonia infection

Abstract: -Seedlings of Ricinus communis tolerated soil-borne

Cited by 3 publications

References 28 publications

Response of <i>Arabidopsis</i> Clones to Toxic Compounds Released by Various <i>Rhizoctonia</i> Species

Response of <i>Arabidopsis</i> Clones to Toxic Compounds Released by Various <i>Rhizoctonia</i> Species

Waitea circinata var. zeae Causing Root Rot of Cabbage and Oilseed Rape

Varietal dependent response of barley to soil-borne Waitea circinata infection

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Selective response of Ricinus communis seedlings to soil borne Rhizoctonia infection

Abstract: -Seedlings of Ricinus communis tolerated soil-borne

Cited by 3 publications

References 28 publications

Response of &lt;i&gt;Arabidopsis&lt;/i&gt; Clones to Toxic Compounds Released by Various &lt;i&gt;Rhizoctonia&lt;/i&gt; Species

Response of &lt;i&gt;Arabidopsis&lt;/i&gt; Clones to Toxic Compounds Released by Various &lt;i&gt;Rhizoctonia&lt;/i&gt; Species

Waitea circinata var. zeae Causing Root Rot of Cabbage and Oilseed Rape

Varietal dependent response of barley to soil-borne Waitea circinata infection

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Response of <i>Arabidopsis</i> Clones to Toxic Compounds Released by Various <i>Rhizoctonia</i> Species

Response of <i>Arabidopsis</i> Clones to Toxic Compounds Released by Various <i>Rhizoctonia</i> Species