Alleviatory effects of silicon on the foliar micromorphology and anatomy of rice (Oryza sativa L.) seedlings under simulated acid rain

Ju, Shuming; Wang, Liping; Zhang, Cuiying; Yin, Tingchao; Shao, Siliang

doi:10.1371/journal.pone.0187021

Cited by 15 publications

(4 citation statements)

References 63 publications

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“…Extract of leaves was then subjected to HPLC on Agilent Zorbax Eclipse XDB-C18 column (250 × 4.6 mm, 5 μm). TEM images of mesophyll cells were obtained (FEI Tecnai Spirit) according to Ju et al [39].…”

Section: Measurement Of Growth Indices Ros Iaa and Temmentioning

confidence: 99%

LncRNA TCONS_00021861 is functionally associated with drought tolerance in rice (Oryza sativa L.) via competing endogenous RNA regulation

Chen

Zhong

2021

BMC Plant Biol

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Background Water deficit is an abiotic stress that retards plant growth and destabilizes crop production. Long non coding RNAs (lncRNAs) are a class of non-coding endogenous RNAs that participate in diverse cellular processes and stress responses in plants. lncRNAs could function as competing endogenous RNAs (ceRNA) and represent a novel layer of gene regulation. However, the regulatory mechanism of lncRNAs as ceRNA in drought stress response is yet unclear. Results In this study, we performed transcriptome-wide identification of drought-responsive lncRNAs in rice. Thereafter, we constructed a lncRNA-mediated ceRNA network by analyzing competing relationships between mRNAs and lncRNAs based on ceRNA hypothesis. A drought responsive ceRNA network with 40 lncRNAs, 23 miRNAs and 103 mRNAs was obtained. Network analysis revealed TCONS_00021861/miR528-3p/YUCCA7 regulatory axis as a hub involved in drought response. The miRNA-target expression and interaction were validated by RT-qPCR and RLM-5’RACE. TCONS_00021861 showed significant positive correlation (r = 0.7102) with YUCCA7 and negative correlation with miR528-3p (r = -0.7483). Overexpression of TCONS_00021861 attenuated the repression of miR528-3p on YUCCA7, leading to increased IAA (Indole-3-acetic acid) content and auxin overproduction phenotypes. Conclusions TCONS_00021861 could regulate YUCCA7 by sponging miR528-3p, which in turn activates IAA biosynthetic pathway and confer resistance to drought stress. Our findings provide a new perspective of the regulatory roles of lncRNAs as ceRNAs in drought resistance of rice.

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Section: Measurement Of Growth Indices Ros Iaa and Temmentioning

confidence: 99%

LncRNA TCONS_00021861 is functionally associated with drought tolerance in rice (Oryza sativa L.) via competing endogenous RNA regulation

Chen

Zhong

2021

BMC Plant Biol

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“…At 50% of the WRC, there was not adjustment of polynomial models in both cultivars (Figure 1c and 1d). In rice (Oryza sativa L.) seedlings, 2 mM Si treatment increased the stomatal density and decreased the stomatal size of the adaxial epidermis (Ju et al, 2017). These same authors suggest that higher stomatal densities and smaller stomatal sizes improved the sensitivity of the stomatal regulation of the plants and improved the stomatal function at similar leaf areas.…”

Section: Resultsmentioning

confidence: 88%

Physiology and Morphology of Rice Plants With Silicon Supplementation and Dietholate Seed Treatment Under Water Deficit

Cassol

Lopes

Dornelles

et al. 2021

Int J Innov Educ Res

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Silicon is an enzyme stimulator that promotes signaling for the production of antioxidant, osmoprotective compounds and attenuates interference in photosynthesis in rice plants subjected to water deficit. The aim of this study was to evaluate the possible effects of silicon as a stress reliever in rice plants grown from seeds treated with dietholate under of water deficit conditions. The experimental design was fully randomized with three replicates, 144 experimental units consisting of pots containing 4.4 pounds soil, and a 3x2x2x4 factorial arrangement: three soil water conditions (50% and 100% of soil water retention capacity and water blade of 5.0 cm); two cultivars (IRGA 424 RI and Guri INTA CL); two sources of Si (sodium and potassium metasilicate); and four Si rates (0; 4.0; 8.0 and 16 g L-1). Silicon boosted stomatal density; induced an increase in the maximum photochemical efficiency of photosystem II (PSII) under both water deficit and optimal conditions, boosting photosynthesis; and increased effective quantum yield of PSII and levels of total dry mass. Thus, silicon attenuated the effects of water deficit in plants grown from seeds treated with dietholate.

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“…Some studies focused on changes at the microscopic level of plants treated with Si. , In hemp leaves, Si action was noticeable in older leaves where a vascular tissue with wider xylem vessels was observed . The authors suggested that Si precipitates and strengthens xylem vessels by encrusting their cell walls.…”

Section: Resultsmentioning

confidence: 99%

Nanoporous Quercetin-Loaded Silicon-Stabilized Hybrid Lipid Nanoparticles Alleviate Salt Stress in Tomato Plants

Guerriero

Sutera²,

Hoffmann

et al. 2023

ACS Appl. Nano Mater.

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The search for more effective methods to alleviate the negative effects of exogenous stresses in plants has inspired nanotechnologies. It is in this context that the use of formulations containing nanoporous silicon-stabilized hybrid lipid nanoparticles acting as delivery systems of the flavonoid quercetin was investigated here. These formulations, referred to as phyto-couriers, proved their efficacy in protecting the important crop model Solanum lycopersicum "Micro-Tom" against salinity. Two phyto-courier formulations, GS1 and GS3, functionalized with 25 mg of quercetin and differing in the presence of trehalose were applied to salt-stressed tomato by foliar spraying. The shape and ordered structure of the palisade cells was completely compromised under salinity; however, the phyto-couriers preserved their elongated shape under abiotic stress. From a molecular point of view, some stress-responsive genes tended to decrease in expression in stressed leaves treated with the phytocouriers. Shotgun proteomics confirmed the nano-biostimulant nature of the formulations: several proteins involved in cytoprotection against oxidative stress were more abundant in control leaves treated with the phyto-couriers. Proteins involved in chromatin remodeling were also more abundant in control leaves treated with the trehalose-containing GS3 formulation, a finding indicating a priming effect. Overall, the formulations showed promising results to enhance abiotic stress tolerance in a crop model through the mitigation of stress symptoms. The results presented proof of the stress-relieving properties of the silicon-stabilized hybrid lipid nanoparticles and are a proof-of-concept for the use of the phyto-courier nanotechnology in horticultural applications.

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Alleviatory effects of silicon on the foliar micromorphology and anatomy of rice (Oryza sativa L.) seedlings under simulated acid rain

Cited by 15 publications

References 63 publications

LncRNA TCONS_00021861 is functionally associated with drought tolerance in rice (Oryza sativa L.) via competing endogenous RNA regulation

LncRNA TCONS_00021861 is functionally associated with drought tolerance in rice (Oryza sativa L.) via competing endogenous RNA regulation

Physiology and Morphology of Rice Plants With Silicon Supplementation and Dietholate Seed Treatment Under Water Deficit

Nanoporous Quercetin-Loaded Silicon-Stabilized Hybrid Lipid Nanoparticles Alleviate Salt Stress in Tomato Plants

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