Mechanisms of Arbuscular Mycorrhizal Fungi Increasing Silicon Uptake by Rice

Journal of Agricultural and Food Chemistry, Год журнала: 2024, Номер 72(30), С. 16603 - 16613

Опубликована: Июнь 29, 2024

Arbuscular mycorrhizal fungi (AMF) influence silicon (Si) uptake by plants, but the mechanisms remain unclear. This study investigated of AMF-mediated Si rice, a model Si-accumulating plant, and explored tripartite interactions among AMF, Si, phosphorus (P). AMF inoculation increased shoot content 97% when supplied with silicic acid 29% calcium silicate upregulated expression transporters

Язык: Английский

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Silicon Nutrition Improves Lodging Resistance of Rice Under Dry Cultivation

Plants, Год журнала: 2025, Номер 14(3), С. 361 - 361

Опубликована: Янв. 24, 2025

Silicon (Si) has been proven to enhance the stress resistance of rice, but its effect on lodging rice under dry cultivation (DCR) is still unclear. The purpose this experiment clarify appropriate amount silicon fertilizer for DCR resist and elucidate how it coordinates yield. This used ‘Suigeng 18’ cultivar as material set six fertilizers (SiO2) with dosages 0, 15, 30, 45, 60, 75 kg·ha−1 (Si0, Si1, Si2, Si3, Si4, Si5). Analyze effects key indicators from perspectives plant weight distribution, stem structure composition, root architecture. results showed that Si3 treatment had highest yield lowest index (LI). increases upper three leaves 4–5 internodes, thereby promoting panicle An increase 13.38% in 2/3PWSI (weight 4th–5th stems leaves/weight 1st–3rd lower leaves) can reflect leaf development near panicle. reduces GA/IAA value, shortens length second internode, diameters major minor axes, increasing culm thickness section modulus (SM), achieving “short thick”. also content non-structural carbohydrates (NSCs) lignin cellulose by upregulating expression levels CAD7, PAL, COMT, CesA4 genes, fullness flexural strength (M), “short, thick, strong” reducing LI. 38.95% reduction IFL (second internode length/fullness) reflects positive stem. In underground part, adding CTK/IAA value roots, length, tip number, surface area, weight. coordinating dosage reduce 2/3 PWSI growth. breeding focus relationship between basal fullness, well growth

Язык: Английский

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Silicon application improves tomato yield and nutritional quality

BMC Plant Biology, Год журнала: 2025, Номер 25(1)

Опубликована: Фев. 25, 2025

Silicon (Si) is a beneficial nutrient well-known for its functions in enhancing plant resistance to abiotic and biotic stresses. How Si application affects tomato yield quality underlying physiological mechanisms remain largely unclear. Our pot experiment showed that (45 kg ha⁻¹ Na₂SiO₃) significantly promoted accumulation of nitrogen, phosphorus, potassium, the shoot soil-cultured greenhouse. Such improved mineral nutrition favored Si-applied performance terms height, stem diameter, single fruit weight, yield, as indicated by significant increases 11.34%, 53.57%, 62.12%, 33.81%, respectively, when compared control (0 Na₂SiO₃). Higher catalase superoxide dismutase activities contrast lower concentrations hydrogen peroxide malondialdehyde suggested facilitated health. Importantly, upregulated expression phytoene synthase carotenoid isomerase enhanced corresponding enzyme activities, resulting higher lycopene fruit. also stimulated vitamin C synthesis genes (GDP-D-mannose-3', 5'-isomerase, GDP-L-galactose phosphorylase, dehydroascorb-ate reductase, monodehydroascorbate reductase) levels accumulation. health, nutritional at molecular level, favoring production towards sustainable agricultural development.

Язык: Английский

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Silicon enhanced phosphorus uptake in rice under dry cultivation through root organic acid secretion and energy distribution in low phosphorus conditions

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Март 24, 2025

Dry cultivation of rice (DCR) is one the important practices aimed at addressing freshwater resource shortages. However, non-renewable nature phosphate resources constrains agricultural development. In context contradiction between rice, water, and phosphorus, there little research on using silicon phosphorus relationship to improve availability uptake DCR. This experiment used field soil established five fertilization treatments: no application, low normal (0, 25, 75 kg·ha -1 P 2 O 5 ) (0P, 25P, 75P), along with two levels 45kg·ha SiO ), resulting in treatments 0P, 0PSi, 25PSi, 75P. The components plant were analyzed. results showed that adding 25P increased Olsen-P content (14.37%) by increasing Ca 8 -P (9.04%) Al-P (19.31%). Additionally, root leaf 7.6% 5.8%, respectively, comparable observed 75P treatment. On hand, increases malate (40.48%) succinate (49.73%) content, enhances acid phosphatase activity, abundance Bradyrhizobium , Paenibacillus Bacillus as well proportion Fusarium forming an “organic microbial” activated system. other addition alleviated limitations reducing ATP consumption roots through a decrease ATPase P-ATPase content. also minimized excessive NSC transport roots, thereby promoting shoot growth downregulating SUT1 SWEET11 SUS2 CIN2 . optimizing root-to-shoot ratio providing sufficient energy, volume upregulates OsPT2 OsPT4 OsPT8 uptake. summary, 25PSi optimizes promotes conversion organic acid, microbial, energy pathways. Applying beneficial for sustainable efficient management

Язык: Английский

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Mitigating abiotic stress in citrus: the role of silicon for enhanced productivity and quality

Plant Stress, Год журнала: 2025, Номер unknown, С. 100837 - 100837

Опубликована: Апрель 1, 2025

Язык: Английский

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Variations in Root Characteristics and Cadmium Accumulation of Different Rice Varieties under Dry Cultivation Conditions

Plants, Год журнала: 2024, Номер 13(17), С. 2457 - 2457

Опубликована: Сен. 2, 2024

Variations in the cadmium (Cd) accumulation and root characteristics of different genotypes rice during three developmental periods dry cultivation were investigated pot experiments which two levels Cd added to soil (0 10 mg kg−1). The results show that concentration each organ decreased both order roots > shoots grains maturity stage booting tillering stage. lowest bioaccumulation factor (BCF) translocation (TF) found Yunjing37 (YJ37) under stress. At maturity, stress inhibited length Dianheyou34 (DHY34) most Dianheyou 918 (DHY918) least, also affecting volume DHY34 Dianheyou615 (DHY615) YJ37 Yiyou 673 (YY673) least; inhibition rates 41.80, 5.09, 40.95, 10.51%, respectively. exodermis showed greatest thickening YY673 DHY615, while endodermis opposite result. change 16.48, 2.45, 5.10, 8.49%, stele diameter DHY615 most, secondary xylem area result; −21.50, −14.29, −5.86, −26.35%, Under treatment at iron plaque was extracted using dithionite–citrate–bicarbonate (DCB) method. (DCB-Fe) highest YJ37, (DCB-Cd) DHY34. screened as a low Cd-accumulating variety. available rhizosphere soil, plaque, morphology, anatomy affect with genotypic differences. Our screening varieties provides basis for areas high background values avoid health risks intake.

Язык: Английский

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Application of Silicon Influencing Grain Yield and Some Grain Quality Features in Thai Fragrant Rice

Plants, Год журнала: 2024, Номер 13(10), С. 1336 - 1336

Опубликована: Май 12, 2024

Silicon (Si) is a beneficial nutrient that has been shown to increase rice productivity and grain quality. Fragrant occupies the high end of market with prices at twice more than three times those non-fragrant rice. Thus, this study evaluated effects increasing Si on yield quality fragrant Also measured were content proline expression genes associated 2AP synthesis transport. The varieties found differ markedly in effect their quality, as by concentration, while there only slight differences response Si. low when supply limited are represented either PTT1 or BNM4 increases was increased. affects gene levels synthesis, accumulation mainly occurred through upregulation Badh2, DAO, OAT, ProDH, P5CS genes. findings suggest potential micronutrient can be utilized for improving further aromatic breeding programs.

Язык: Английский

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Rice Under Dry Cultivation–Maize Intercropping Improves Soil Environment and Increases Total Yield by Regulating Belowground Root Growth

Plants, Год журнала: 2024, Номер 13(21), С. 2957 - 2957

Опубликована: Окт. 23, 2024

Under the one-season-a-year cropping pattern in Northeast China, continuous is one of main factors contributing to degradation black soil. Previous studies (on maize-soybean, maize-peanut, and maize-wheat intercropping) have shown that intercropping can alleviate this problem. However, it not known whether feasible for maize rice under dry cultivation, its effects on yield soil fertility are unknown. A three-year field-orientation experiment was conducted at Jilin Agricultural University Changchun city, Province, consisting three regimes, namely cultivation-maize (IRM), sole cultivation (SR), (SM). All straw fully returned field after mechanical harvesting. Rice with a land-equivalent ratio 1.05 (the average years values) increased total by 8.63% compared monoculture system. The aggressivity (A), relative crowding coefficient (K), time-area-equivalent (ATER), competition (CR) value were positive or ≥1, also indicating had advantage overall This because intercropped root length density (RLD) 33.94-102.84% 0-40 cm layer, which contributed an increase porosity (SP) 5.58-10.10% 0-30 mean weight diameter aggregates (MWD) 3.00-15.69%, geometric (GMD) 8.16-26.42%, decrease bulk (SBD) 4.02-7.35%, organic matter content (SOM) 0.60-4.35%. water permeability aeration facilitated absorption nutrients system their transportation above ground, plant nitrogen, phosphorus, potassium accumulation significantly higher than treatment, further promoting intercropping. suggests mainly promotes belowground growth, improves environment, increases

Язык: Английский

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Potency of Silicon for Enhanced Rice Productivity: A Revelation for Global Food Security

Silicon, Год журнала: 2024, Номер 16(15), С. 5501 - 5523

Опубликована: Авг. 3, 2024

Язык: Английский

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Combined action of salicylic acid and silicon regulates osmoregulatory substances and antioxidant enzymes to improve drought tolerance and yield in dry-cultivated rice

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Окт. 3, 2024

Salicylic acid (SA) and silicon (Si) protect against a variety of stresses. Our group found that Si improved the drought tolerance dry-cultivated rice. No studies are available regarding synergistic effect aboveground SA spraying belowground application on yield rice, necessitating further research. Two rice types with different levels resistance (Suijing18 Hongke88) were selected for this study. The optimal concentration (1 mM/L) was determined via five treatments at various concentrations. Then combined, which included Control, 45 kg/hm² Si, 1 mM SA, + to examine their morphological characteristics, yield, osmotic regulatory substances, chlorophyll fluorescence, antioxidant enzymes two drought-resistant cultivars. results showed combined increased plant height, root length, dry weight, weight these types. by 80.70% 77.26%, respectively. Compared control, while photosynthetic capacity significantly, minimum photochemical efficiency (Fv/Fm) values 30.97% 19.17%, quantum (ΦPSII) 29.01% 29.64% higher, NPQ decreased 67.55% 39.98%, Moreover, treatment soluble sugar protein levels, osmoregulatory capacity, enzyme activity, endogenous content in species. Hence, improves increasing enhancing upregulating activity enzymes, strengthening PSII system. This capability increase accumulation matter produces more significant alleviation adverse effects stress compared either substance alone.

Язык: Английский

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