Опубликована: Янв. 1, 2024
Язык: Английский
Global Change Biology, Год журнала: 2024, Номер 30(3)
Опубликована: Март 1, 2024
Abstract Paddy fields serve as significant reservoirs of soil organic carbon (SOC) and their potential for terrestrial (C) sequestration is closely associated with changes in SOC pools. However, there has been a dearth comprehensive studies quantifying pools following extended periods rice cultivation across broad geographical scale. Using 104 paddy sampling sites that have continuous since the 1980s China, we studied topsoil (0–20 cm) labile C (LOC I), semi‐labile II), recalcitrant (ROC), total SOC. We found substantial increase both content (48%) density (39%) within China's between to 2010s. Intriguingly, rate ROC exceeded LOC (I II). structural equation model, revealed were mainly driven by corresponding shifts ROC, which are influenced directly indirectly climatic physicochemical factors; particular temperature, precipitation, phosphorous (P) clay content. also showed δ 13 greater than , independent cropping region, was positive correlation straw . The significantly negative Si, suggesting Si plays part allocation into different pools, its turnover or stabilization. Our study underscores global stems from pool.
Язык: Английский
Процитировано
13
The Science of The Total Environment, Год журнала: 2023, Номер 904, С. 166887 - 166887
Опубликована: Сен. 6, 2023
Язык: Английский
Процитировано
21
The Science of The Total Environment, Год журнала: 2024, Номер 929, С. 172497 - 172497
Опубликована: Апрель 16, 2024
Язык: Английский
Процитировано
7
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
Процитировано
7
Chemical and Biological Technologies in Agriculture, Год журнала: 2024, Номер 11(1)
Опубликована: Авг. 1, 2024
Forest soils are usually highly weathered and abundant in mineral-weathering bacteria, which have not been used to mobilize soil minerals for crop production. Here, we an acidic forest with low available phosphorus (P), potassium (K), silicon (Si) isolate bacteria capable of co-solubilizing P, K, Si (PKSi-solubilizing) the model rice plant test their potential nutrition. Six PKSi-solubilizing strains representative common proteobacteria taxa (genera Burkholderia, Paraburkholderia, Collimonas, Pseudomonas, Agrobacterium) were screened out. They showed diverse P-, K-, or Si-solubilizing activities produced organic acids. Their mineral-solubilizing positively correlated levels medium pH reduction gluconic acid promoted growth seedlings grown by increasing P Si, cumulative contents dry weight, corresponding root-to-shoot ratios. The alone inoculated stains did reduce pH. is a valuable resource high-performance improving fertility out can promote seedling mobilizing from Si. show potentials mitigate deficiency growth, recover soluble chemical fertilizers improve use efficiency fertilizers, thus reducing input fertilizers. may retard acidification Si-solubilization quality.
Язык: Английский
Процитировано
7
Plant Physiology and Biochemistry, Год журнала: 2024, Номер 207, С. 108368 - 108368
Опубликована: Янв. 12, 2024
Язык: Английский
Процитировано
5
Environmental Technology & Innovation, Год журнала: 2024, Номер 34, С. 103613 - 103613
Опубликована: Март 30, 2024
Silicon is an essential component of various environmental processes and biogeochemical cycles with silicate (H4SiO4) representing the bioavailable form silicon in waters soils. This study aimed to develop a method for accurately measuring labile levels soils using diffusive gradients thin-films (DGT) hydrogel gel modified precipitated zirconia (mPZ) binding gel. The diffusion coefficient gel, measured independent cell, was 6.77 × 10-6 cm2 s-1 at 25 ○C. mPZ gels were found be effective quickly efficiently silicate, mixed solution 0.5 mol L-1 NaOH H2O2 determined effectively elute from gels, elution factor 1.0. Furthermore, mPZ-DGT able measure pH (4.03–7.93) ionic strengths (0.1–1000 mmol L−1 NaNO3). Field application devices urban river revealed decrease concentration downstream compared upstream, likely due increased human activity. Finally, used four sandy or loam concentration, results showed relatively small variations those by CaCl2 ammonium oxalate extractions. findings suggest that useful tool monitoring concentrations assessing its bioavailability
Язык: Английский
Процитировано
4
The Crop Journal, Год журнала: 2024, Номер 12(4), С. 1041 - 1053
Опубликована: Июнь 22, 2024
In acidic paddy fields of South China, rice (Oryza sativa L.) faces the dual challenges cadmium (Cd) toxicity and silicon (Si) deficiency. Although previous studies have highlighted functions Si application timing strategies in mitigating Cd-stressed rice, precise mechanisms underlying health restoration Cd-toxic assurance grain safety remain elusive. This study explored Cd translocation detoxification shoots regulated by various fertilization regimes: Si(T) (all added before transplanting), Si(J) at jointing), Si(TJ) (half both transplanting jointing). The findings revealed that regime was more beneficial to than Si(J). osmotic regulators such as proline, soluble sugars, proteins were significantly boosted compared other treatments, which enhanced membrane integrity, balanced intracellular pH, increased tolerance rice. Furthermore, effective on sequestration cell wall, bio-passivation, down-regulated expression transport genes. concentrations xylem phloem treated with reduced significantly. Additionally, facilitated much bound outer layer grains, promoted chelation complexation phytic acid, phenolics, flavonoids. Overall, (TJ) outperformed harmonizing phycological processes, inhibiting translocation, enhancing plant. Thereby split strategy offers potential for reducing grain.
Язык: Английский
Процитировано
4
Geoderma, Год журнала: 2025, Номер 454, С. 117184 - 117184
Опубликована: Янв. 23, 2025
Язык: Английский
Процитировано
0
Nature Communications, Год журнала: 2025, Номер 16(1)
Опубликована: Янв. 29, 2025
Abstract Research on silicon (Si) biogeochemistry and its beneficial effects for plants has received significant attention over several decades, but the reasons emergence of high-Si remain unclear. Here, we combine experimentation, field studies analysis existing databases to test role temperature expression silicification in terrestrial plants. We first show that Si is rice under high (40 °C), harmful low (0 whilst a 2 °C increase results 37% leaf concentrations. then find that, globally, average distribution plant clades 1.2 higher than low-Si clades. Across China, concentrations with (wheat rice), not (weeping willow winter jasmine). From an evolutionary perspective, 77% families (>10 mg g −1 DW) originate during warming episodes, while 86% (<1 cooling episodes. On average, Earth’s 3 families. Taken together, our evidence suggests variation closely related global long-term climate change.
Язык: Английский
Процитировано
0