Role of silicon in elevating resistance against sheath blight and blast diseases in rice (Oryza sativa L.)

Sathe, Atul Prakash; Kumar, Amit; Mandlik, Rushil; Raturi, Gaurav; Yadav, Himanshu; Kumar, Nitesh; Shivaraj, S. M.; Jaswal, Rajdeep; Kapoor, Ritu; Gupta, Santosh Kumar; Sharma, Tilak Raj; Sonah, Humira

doi:10.1016/j.plaphy.2021.05.045

Cited by 28 publications

(16 citation statements)

References 126 publications

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“…Silicon is a beneficial element for plant growth and has been shown to improve plant disease resistance ( Zeyen, 2002 ; Sathe et al., 2021 ).We also found that silicon played an important role in inhibiting peach gummosis, which reduced its incidence. Silicon effectively inhibited the damage to the cells in the gummosis-affected area of the peach shoots and reduced the degradation of the cell wall.…”

Section: Discussionmentioning

confidence: 53%

Silicon inhibits gummosis by promoting polyamine synthesis and repressing ethylene biosynthesis in peach

Gao

Yang

et al. 2022

Front. Plant Sci.

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Silicon is a beneficial element for plant growth, as well as for improving plant resistance to multiple biotic and abiotic stresses. Gummosis is a common harmful disease in peach and is induced by many factors. However, the effect of silicon on gummosis of peach has not been determined yet. In this study, we reported that application of silicon significantly reduced gummosis by regulating biosynthesis of ethylene and polyamines in peach. Ethylene promoted the development of gummosis by inducing the expression of genes encoding cell wall degrading enzymes. While application of different types of polyamines, including spermidine and spermine, dramatically inhibited the occurrence of gummosis. Moreover, polyamines inhibited the ethylene biosynthesis by down-regulating expression of ethylene biosynthetic gene PpACS1 (1-aminocyclopropane -1-carboxylic acid synthase), as well as the enzymatic activity of ACS. We further found that application of silicon significantly restricted the development of gummosis in peach. Exogenous silicon dramatically inhibited expression of PpACS1 and the enzymatic activity of its product to reduce ethylene biosynthesis. Simultaneously, the activity of S-adenosylmethionine decarboxylase, a key enzyme in ployamines biosynthesis, was increased by 9.85% under silicon treatment, resulting in elevated accumulation of polyamines. Thus, our data proved that application of silicon restricted gummosis development by activating ployamines biosynthesis and inhibiting ethylene synthesis in peach.

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Section: Discussionmentioning

confidence: 53%

Silicon inhibits gummosis by promoting polyamine synthesis and repressing ethylene biosynthesis in peach

Gao

Yang

et al. 2022

Front. Plant Sci.

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“…Many studies have investigated which morphological and physiological parameters were related to susceptibility to ShB in rice under ambient conditions, but with inconsistent results ( Zou et al., 2000 ; Pinson et al., 2005 ; Ma et al., 2006 ; Willocquet et al., 2012 ; Zuo et al., 2014b ; Dey et al., 2016 ; Sathe et al., 2021 ; Senapati et al., 2022 ). The wax layer is the first barrier for plants, and has the function of resisting pathogen invasion in the natural environment ( Jetter and Schaffer, 2001 ; Chen et al., 2003 ).…”

Section: Discussionmentioning

confidence: 99%

“…Disease resistance is positively correlated with stem thickness under artificial inoculation of R. solani ( Dey et al., 2016 ). Some studies of artificial inoculation showed higher Si content in rice suppressed lesion development, resulting in increased resistance to R. solani ( Rodrigues et al., 2003a ; Rodrigues et al., 2003b ; Schurt et al., 2014 ; Sathe et al., 2021 ). Rice plants respond to R. solani infecting, by activating various signaling pathways and producing antimicrobial compounds to prevent it from colonizing ( Senapati et al., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Elevated CO2 and temperature under future climate change increase severity of rice sheath blight

et al. 2023

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Sheath blight (ShB), caused by Rhizoctonia solani, is one of the major threats to rice (Oryza sativa L.) production. However, it is not clear how the risk of rice ShB will respond to elevated CO2 and temperature under future climate change. Here, we conducted, field experiments of inoculated R. solani under combinations of two CO2 levels (ambient and enriched up to 590 μmol mol-1) and two temperature levels (ambient and increased by 2.0°C) in temperature by free-air CO2 enrichment (T-FACE) system for two cultivars (a susceptible cultivar, Lemont and a resistant cultivar, YSBR1). Results indicate that for the inoculation of plants with R. solani, the vertical length of ShB lesions for cv. Lemont was significantly longer than that for cv. YSBR1 under four CO2 and temperature treatments. The vertical length of ShB lesions was significantly increased by elevated temperature, but not by elevated CO2, for both cultivars. The vertical length of ShB lesions under the combination of elevated CO2 and elevated temperature was increased by 21–38% for cv. Lemont and by -1–6% for cv. YSBR1. A significant increase in MDA level was related to a significant increase in the vertical length of ShB lesions under the combination of elevated CO2 and elevated temperature. Elevated CO2 could not compensate for the negative effect of elevated temperature on yield of both cultivars under future climate change. Rice yield and biomass were further decreased by 2.0–2.5% and 2.9–4.2% by an increase in the severity of ShB under the combination of elevated CO2 and elevated temperature. Thus, reasonable agronomic management practices are required to improve both resistance to ShB disease and grain yield for rice under future climate change.

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“…This is of primary interest to achieve sustainable crop production, since the use of pesticides not only poses a risk to the ecosystems [196], but it might also be aggravated due to climate change. Plant supplementation with Si showed a suppressive effect of several plant diseases in important food and feed crops, including, e.g., R. solani and Magnaporthe oryzae in rice [197], Podosphaera aphanis and Tetranychus urticae in strawberry [198], and F. graminearum, Pyricularia oryzae, and Pyrenophora tritici-repentis in wheat [199,200].…”

Section: Pest and Pathogen Resistancementioning

confidence: 99%

Non-Essential Elements and Their Role in Sustainable Agriculture

et al. 2022

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Agricultural systems are constantly under environmental pressure, and the continuous rise of the global population requires an increasingly intensification of agronomical productivity. To meet the current global food demand, particularly in depleted ecosystems under adverse climate conditions, the development of novel agronomical practices, which ensure crop productivity while safeguarding minimal impact to the environment, must be encouraged. Since aluminium (Al), cobalt (Co), selenium (Se), silicon (Si) and sodium (Na) are not essential to plant metabolism, their benefits are often neglected or underestimated in agriculture; however, several studies support their advantages in sustainable agriculture when properly employed. The agronomical uses of these elements have been studied in the last decades, delivering important cues for the improvement of food and feed production worldwide due to beneficial effects in plant growth and productivity, nutrient balance, pest and pathogen resistance, water stress management, heavy-metal toxicity alleviation, and postharvest performance. However, their application has not been addressed as part of a holistic conservation strategy that supports the sustainability of agroecosystems. Here, we discuss the potential use of these elements in sustainable agriculture, and the knowledge gaps that hinder their effective integration into agronomical practices, which result in equally profitable applications while supporting environmental sustainability.

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Role of silicon in elevating resistance against sheath blight and blast diseases in rice (Oryza sativa L.)

Cited by 28 publications

References 126 publications

Silicon inhibits gummosis by promoting polyamine synthesis and repressing ethylene biosynthesis in peach

Silicon inhibits gummosis by promoting polyamine synthesis and repressing ethylene biosynthesis in peach

Elevated CO2 and temperature under future climate change increase severity of rice sheath blight

Non-Essential Elements and Their Role in Sustainable Agriculture

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