The defensive role of silicon in wheat against stress conditions induced by drought, salinity or cadmium

Alzahrani, Yahya; Kuşvuran, Alpaslan; Alharby, Hesham F.; Kuşvuran, Şebnem; Rady, Mostafa M.

doi:10.1016/j.ecoenv.2018.02.057

Cited by 194 publications

(151 citation statements)

References 55 publications

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“…Abd_Allah et al (2018) also reported that salinity stress significantly increased POD activity in chickpea plants, and the level of POD was further elevated in plants inoculated with Bacillus subtilis BERA 71. Similarly, higher activity of POD enzyme in Si treated okra and wheat plants as compared to non-Si treated control plants under salinity stress has been documented by Abbas et al (2015) and Alzahrani et al (2018), respectively. The mechanism of PGPB and Si induced POD activity is yet to be elucidated; however, several studies have reported that PGPB can stimulate various genes that encode different antioxidant enzymes in plants (Habib et al 2016;Sharma et al 2016).…”

Section: Discussionmentioning

confidence: 80%

“…Silicon (Si), next to oxygen, is the second major element in the Earth's crust, and the application of Si fertilizer (potassium silicate, K 2 SiO 3 ) has been reported to ameliorate the negative effects of various biotic and abiotic stresses on plants including salinity (Alzahrani et al 2018;Etesami 2018). Si may enhance salinity tolerance in plants by improving Na + and K + homeostasis, nutritional status, ROS-scavenging enzymes activity, and photosynthetic efficiency, among others (Garg and Bhandari 2016b;Li et al 2016;Rios et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

Al-Garni

Khan

Bahieldin

2019

Journal of Plant Interactions

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Plant growth-promoting bacteria (PGPB) and silicon (Si) can augment salinity tolerance in plants. In this study, 25 potential PGPB were isolated from alfalfa rhizosphere and screened for their ability to synthesize indole-3-acetic acid, 1-aminocyclopropane-1-carboxylate deaminase, and solubilize tricalcium phosphate. Two promising strains were tentatively identified as Pseudomonas pseudoalcaligenes (KB-10) and P. putida (KB-25) based on phenotypic, biochemical and 16S rRNA gene phylogeny. Subsequently, a pot experiment was conducted to evaluate the effectiveness of KB-10 and KB-25 treatment, alone or in combination with Si fertilizer, in alleviating salinity stress in coriander. The results showed that treatment with PGPB strains and/or Si significantly increased relative water content, concentrations of photosynthetic pigments, peroxidase activity, total biomass, salt tolerance index, and reduced salt-induced total phenolic contents. Overall data suggested that the combined application of PGPB and Si fertilizer could be a feasible and effective approach to improve growth and salinity tolerance in coriander. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

Al-Garni

Khan

Bahieldin

2019

Journal of Plant Interactions

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“…Moreover, jasmonic acid might have upregulated the plant genes associated with Si uptake under salinity and activated antioxidant defense systems and induced osmolyte production (Abdel-Haliem et al, 2017). Silicon is beneficial in remarkably affecting physiological phenomena and improving wheat growth under abiotic stress (Alzahrani et al, 2018). Silicon at 100 mg kg -1 soil showed highest results in the study for all the parameters whereas Si at 75 mg kg -1 remained at par for majority of parameters.…”

Section: Discussionmentioning

confidence: 91%

Silicon improves rice nutrition and productivity under salinity

Ahmed¹,

Murtaza²,

Ali

et al. 2019

PAK.J.BOT.

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Silicon (Si) is a beneficial nutrient for plant growth and productivity. Our investigation was conducted to study the influence of Si application for ameliorating the adverse effects of salinity on rice through sodium regulation in plant tissues. Three same textured soils (sandy clay loam) with different electrical conductivity (EC e : 2.85, 5.28 and 7.57 dS m-1) and pH (8.1, 8.6 and 8.9) were collected at 0-15 cm depth from the Bahauddin Zakariya University Agricultural Farm in Multan, Pakistan. The Si @ 50, 75 and 100 mg kg-1 as calcium silicate was applied to pots containing 10 kg sandy clay loam soil (sand 48%, silt 17%, clay 35%). A control without Si application was also maintained. The completely randomized design in 3 × 4 factorial experiment with three replications was established. Thirty days old, seedlings of Kernel Basmati rice were transplanted manually and standard cultural practices were followed. Results showed a significant (p<0.05) effect of soil salinity on rice growth and yield parameters. A reduction in grain, straw, leaf and root concentrations of Si, P and K/Na was observed under salinity; however, Si application at 100 mg kg-1 ameliorated the salinity stress and significantly increased the root/shoot dry weights, tiller numbers, grain numbers per spike, paddy yield, harvest index, and P and Si concentrations in root, straw, leaves and grains over control though similar to Si @ 75 mg kg-1 for shoot dry weight, number of tillers, harvest index, grain/root P concentration and leaf Si concentration. The Si application affected K/Na by increasing K uptake with an associated decrease in Na concentration in plant tissues. Thus, Si application at 100 or 75 mg kg-1 soil (200 or 150 kg ha-1) could be a useful strategy for rice production in salt-affected lands. Shoot dry weight, Number of tillers. Harvest index, Grain/root P conc., Leaf Si conc.

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“…Number of proteins of CBL-interacting kinase, serine threonine kinase and wall-associated receptor kinase and Mitogen-activated kinase family were highly expressed wheat, involved in metal ion binding and its transportation serine/threonine kinase signalling, protein phosphorylation and response to stresses [Jin et al, 2016; Mao et al,2009; Shi et al, 2018 Hou et al, 2005; Kanneganti et al, 2008; Kumar et al, 2018; Wimalasekera et al, 2018]. Glutathione peroxidase and peroxidase family proteins expression indicates higher response to oxidative stress, glutathione peroxidase activity, metal ions binding & transportation activity [Alzahrani et al 2018; Martinez et al, 2018]. Interestingly, number of transcripts of zinc finger transcription factors and helicase-like transcription factor were expressed in HZFWGs showed their function in various transcription factor activity, sequence-specific DNA and metal ion binding and stress response [Bouain et al, 2014; Zang et al, 2016; Sarwat et al, 2018].…”

Section: Discussionmentioning

confidence: 99%

Unveiling the transcriptome complexity of the High- and Low- Zinc & Iron accumulating Indian wheat (Triticum aestivum L.) cultivars

Mishra

Gupta

Chand

et al. 2019

Preprint

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Development of Zinc (Zn), Iron (Fe) and other minerals rich grains along with various stress tolerance and susceptible (STR) wheat genotype, will help to reduce globally spread malnutrition problem. Current study deals with transcriptome profiling of 4 high- and 3 low- Zn & Fe accumulating wheat genotypes (HZFWGs) and (LZFWGs). Functional characterization of expressed and high and low specific genes, accompanied by metabolic pathways analysis reveals, phenylpropanoid biosynthesis, and other associated pathways are mainly participating in plant stress defense mechanism in both genotypes. Chlorophyll synthesis, Zn & Fe binding, metal ion transport, and ATP-Synthase coupled transport mechanism are highly active in HZFWGs while in LZFWGs ribosomal formation, biomolecules binding activities and secondary metabolite biosynthesis. Transcripts accountable for minerals uptake and purine metabolism in HZFWGs are highly enriched. Identified transcripts may be used for marker-assisted selection and breeding to develop minerals rich crops.

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The defensive role of silicon in wheat against stress conditions induced by drought, salinity or cadmium

Cited by 194 publications

References 55 publications

Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

Silicon improves rice nutrition and productivity under salinity

Unveiling the transcriptome complexity of the High- and Low- Zinc & Iron accumulating Indian wheat (Triticum aestivum L.) cultivars

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