Silicon delays Tobacco ringspot virus systemic symptoms in Nicotiana tabacum

Zellner, Wendy; Frantz, Jonathan M.; Leisner, Scott

doi:10.1016/j.jplph.2011.04.002

Cited by 56 publications

(28 citation statements)

References 10 publications

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“…Interestingly, Si concentration in leaves increased as Cu supply increased. A similar observation was made by Zellner et al (2011), where it was hypothesized that tobacco (also a non-accumulator) leaves can regulate Si uptake in response to biotic stress. That is, in some plants, Si uptake may be stimulated by stress, thereby enabling the plant to make use of the element in stress alleviation.…”

Section: Resultssupporting

confidence: 67%

“…With observations on poinsettia (N.S. Mattson, unpublished data), tomato (Stamatakis et al, 2003), tobacco (Zellner et al, 2011), and now snapdragon (all so-called non-accumulators) clearly being influenced by the presence of Si during specific stress events, we should instead focus on the extent of response from Si, not if Si can induce a response.…”

Section: Resultsmentioning

confidence: 99%

“…A few studies have begun to cast doubt on the view that Si must be accumulated in large amounts to provide a plant benefit. Zellner et al (2011) documented reduced viral symptoms in nonaccumulating tobacco (Nicotiana tabacum); tomato (Solanum lycopersicum) sensitivity to salinity and blossom end rot symptoms were diminished when Si was supplied (Stamatakis et al, 2003); poinsettia (Euphorbia pulcherrima) had a longer shelf life and exhibited faster recovery from wilt when fed with Si during pre-production finishing (N.S. Mattson, unpublished data); tomato had induced resistance to Ralstonia solanacearum when supplemental Si was provided before and during inoculation (Ghareed et al, 2011).…”

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confidence: 99%

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Silicon Differentially Influences Copper Toxicity Response in Silicon-accumulator and Non-accumulator Species

Frantz¹,

Khandekar²,

Leisner³

2011

J. Amer. Soc. Hort. Sci.

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The use of copper (Cu) in agriculture is widespread as a pesticide, and it is present in high concentrations in certain types of manures. As the use of Cu continues and manure management is incorporated into sustainable systems, the likelihood of Cu toxicity increases. Supplemental silicon has been used to successfully counteract potential micronutrient toxicity. There is currently considerable debate regarding the value of including silicon (Si) as a nutrient in fertility programs and as such, it is not part of a typical management practice in floriculture crop production in the United States. We investigated the potential for Si to ameliorate the effects of Cu toxicity in both a Si-accumulating [zinnia (Zinnia elegans)] and a Si-non-accumulating [snapdragon (Antirrhinum majus)] species. Using visible stress indicators and dry weight analysis, it initially appeared that Si was a significant benefit to only zinnia under Cu toxicity. Enzymatic assays and elemental analysis of leaves, stems, and roots revealed that both species responded to supplemental Si, showing evidence of reduced stress and nutrient concentrations more similar to healthy, control plants than plants exposed to Cu toxicity. Although there appear to be differences in the extent of Si-mediated amelioration of Cu toxicity between these two plants, both responded to supplemental Si. This adds to the growing body of evidence that all plants likely have Si-mediated responses to stress, and its inclusion into fertility programs should be more broadly considered than current practices.

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Section: Resultssupporting

confidence: 67%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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Silicon Differentially Influences Copper Toxicity Response in Silicon-accumulator and Non-accumulator Species

Frantz¹,

Khandekar²,

Leisner³

2011

J. Amer. Soc. Hort. Sci.

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“…Several herbivorus insects suff er adverse eff ects when feeding on silica-rich plants (Reynolds et al, 2009). Moreover, silicon has been shown to improve resistance in many plants to various fungal, viral and bacterial pathogens (Rodriges and Datnoff , 2005;Silva et al, 2010;Zellner et al, 2011;Van Bockhaven et al, 2013). Most interesting, silicon protects plants against a multitude of stresses without the occurrence of resistance trade-off s and/or growth and yield penalties (Fauteux et al, 2005;Ma and Yamaji, 2006;Epstein, 2009;Van Bockhaven et al, 2013).…”

Section: Agronomic Importance Of Silicon In Plant Cropsmentioning

confidence: 99%

The role of silicon (Si) in increasing plant resistance against fungal diseases

Sakr

2016

Hellenic Plant Protection Journal

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Summary The use of silicon (Si) in agriculture has attracted a great deal of interest from researchers because of the numerous benefits of this element to plants. The use of silicon has decreased the intensity of several diseases in crops of great economic importance. In this study, the relationship between silicon nutrition and fungal disease development in plants was reviewed. The current review underlines the agricultural importance of silicon in crops, the potential for controlling fungal plant pathogens by silicon treatment, the different mechanisms of silicon-enhanced resistance, and the inhibitory effects of silicon on plant pathogenic fungi in vitro. By combining the data presented in this paper, a better comprehension of the relationship between silicon treatments, increasing plant resistance, and decreasing severity of fungal diseases could be achieved.

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“…Herbivory seems to promote silicification more commonly in grasses compared to southwest Asian Asteraceae species, and it is thus also probable that silica plays less of a defensive role in Asteraceae species (Katz et al, 2014). Yet, even in plant species with very low silica concentrations, silica may play substantial roles, including reducing aluminum toxicity (Hodson and Evans, 1995; Britez et al, 2002; Khandekar and Leisner, 2011) and defending plants from pathogens (Fauteux et al, 2006; Zellner et al, 2011). Thus, low silica accumulation is not indicative of low silica function, and therefore silica function is not restricted to high silica grass taxa.…”

Section: Low Silica Concentrations Are Not Necessarily “Insignificant”mentioning

confidence: 99%

Beyond grasses: the potential benefits of studying silicon accumulation in non-grass species

Katz

2014

Front. Plant Sci.

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Silicon delays Tobacco ringspot virus systemic symptoms in Nicotiana tabacum

Cited by 56 publications

References 10 publications

Silicon Differentially Influences Copper Toxicity Response in Silicon-accumulator and Non-accumulator Species

Silicon Differentially Influences Copper Toxicity Response in Silicon-accumulator and Non-accumulator Species

The role of silicon (Si) in increasing plant resistance against fungal diseases

Beyond grasses: the potential benefits of studying silicon accumulation in non-grass species

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