INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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2022
·Vol. 23
·期 14
·7574
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IF 6.208
Weizeng Lv,Xue He,Haojuan Guo,Haibin Lan,Yanqing Jiao,Le Li,Yanhao Lian,Zhiqiang Wang,Zeyu Xin,Yongzhe Ren,Tongbao Lin
Excessive input of nitrogen fertilizer not only causes a great waste of resources but brings about a series of ecological and environmental problems. AlthoughSmall Auxin Up-regulatedRNAs(SAURs) participate in diverse biological processes, the function ofSAURsin the nitrogen starvation response has not been well-studied. Here, we identified 308TaSAURs in wheat and divided them into 10 subfamilies. The promoter regions of mostTaSAURscontain hormone responsive elements, and their expression levels change under the treatment of different hormones, such as IAA, MeJA, and ABA. Interestingly, overexpression of one of theTaSAURfamily members, a nitrogen starvation responsive gene,TaSAUR66-5B, can promote the growth ofArabidopsisand wheat roots. In addition, overexpression ofTaSAUR66-5BinArabidopsisup-regulates the expression levels of auxin biosynthesis related genes, suggesting that overexpressionTaSAUR66-5Bmay promote root growth by increasing the biosynthesis of auxin. Furthermore, overexpression ofTaSAUR66-5Bin wheat can increase the biomass and grain yields of transgenic plants, as well as the nitrogen concentration and accumulation of both shoots and grains, especially under low nitrogen conditions. This study provides important genomic information of theTaSAURgene family and lays a foundation for elucidating the functions ofTaSAURsin improving nitrogen utilization efficiency in wheat.Keywords:TaSAURgene family;TaSAUR66-5B;root;nitrogen utilization efficiency
研究领域:
植物学
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遗传学
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分子生物学
✓ 已验证
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 24
·25107-25116
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IF 2.914
Liu Guanghua,Lin Guanquan,Lin Xida,Zhou Hongjun,Chen Huayao,Hao Li,Zhou Xinhua
The overdosage use of pesticide was harmful to the environment and human health, which was mainly caused by the low utilization rate of the pesticide. However, the pesticide microcapsule with sustained-release and stimulating response properties could effectively solve this problem. Preparation of carboxymethyl cellulose grafting dimethyldiallylammonium chloride (CMC-g-PDMDAAC) through grafting polymerization and trapping as well as encapsulation of avermectin (AVM) via electrostatic interactions resulted in the formation of AVM/CMC-g-PDMDAAC microcapsules. The results showed that the particle size was 200~300 nm. The encapsulation efficiency was as high as 72.06%. Furthermore, the remaining rate of encapsulated AVM increased from 50.0 to 81.60% after UV irradiation for 359 min. The microcapsules exhibited significant enzyme and pH stimuli responsiveness. Finally, CMC-g-PDMDAAC had no significant difference effect on the toxicity of AVM, AVM could be found, and DMDAAC featured a synergistic effect on the toxicological effects of AVM.
Graphical abstract
研究领域:
农药科学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CATALYSIS
·
2016
·
IF 7.354
Xuelin Zou,Zebao Rui,Shiqi Song,Hongbing Ji
Poor durability and low Pd utilization efficiency are the main drawbacks of supported Pd catalysts for low-temperature methane combustion. Here, we present a facile way to stabilize the performance of Pd/Al 2 O 3 by introducing a spinel NiAl 2 O 4 interface as a promoter at no cost to the activity. The NiAl 2 O 4 interface is formed by impregnation of alumina supports in the nickel-containing solution, followed by high-temperature calcination. A series of 0.4 wt.% Pd/ x NiO/γ-Al 2 O 3 with NiO loading varying among 0.0, 0.5, 1.0, and 9.0 wt.% is investigated. The formation of a NiAl 2 O 4 interface promotes the distribution and crystallization of PdO, suppresses PdO particles aggregation and surface OH − species accumulation during the reaction, and finally leads to the excellent performance of Pd/0.5NiO/γ-Al 2 O 3 . Pd/0.5NiO/γ-Al 2 O 3 demonstrates higher Pd utilization efficiency than the state-of-the-art Pd-based catalysts and better stability than Pd/Al 2 O 3 . Such a spinel interface promotion strategy may bring new insight into the design of highly efficient Pd-based catalysts and their potential technological applications.
研究领域:
催化化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
PLANT AND SOIL
·
2015
·Vol. 390
·期 1
·337-349
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IF 2.952
Fan Xianwei,Hu Haiyang,Huang Guiyuan,Huang Feiyan,Li Youzhi,Palta Jairo
Background and aims Plant-growth promoting rhizobacteria (PGPR) can promote plant performance under water deficit, but the physiology and biochemistry of the promoting process induced by PGPR under different water deficits is not well known in maize ( Zea mays L). Methods A glasshouse study was conducted to determine the effects of Burkholderia sp. LD-11 on morphophysiological traits for plant growth and homeostasis between reactive oxygen species (ROS) and antioxidant enzymes under five regimens in two maize inbred lines. Results Soil inoculation with Burkholderia sp. LD-11 promoted biomass accumulation and improved instantaneous water-use efficiency (WUEi), regardless of the soil water availability. It also triggered production of indole-3-acetic acid (IAA), decreasing the accumulation of abscisic acid (ABA) induced by the water deficit, alleviated ROS accumulation, and resulted in a reduction in lipid peroxidation induced by the water deficits. Soil inoculation also enhanced the tolerance to water deficit through reducing stomatal aperture by increasing the sensitivity of stomatal conductance ( g
s ) to small changes in ABA concentration in the leaves. Conclusions Soil inoculation with Burkholderia sp. LD-11 enhanced root systems and WUEi, offering a potential avenue for improving maize tolerance to water deficit.
研究领域:
植物生理学
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微生物学
✓ 已验证
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2020
·
IF 6.551
Qingnan Chu,Sheng Xu,Lihong Xue,Yang Liu,Yanfang Feng,Shan Yu,Linzhang Yang,Baoshan Xing
Clay-hydrochar composites (CHCs) are of great significance in ammonium (NH 4 + ) adsorption and have the potential to be applied to paddy fields to prevent ammonia (NH 3 ) volatilization. In this study, three CHCs were produced by infusing different clays to poplar-sawdust-derived hydrochar , including a bentonite hydrochar composite (BTHC), montmorillonite hydrochar composite (MTHC), and kaolinite hydrochar composite (KTHC). These three CHCs were applied to a paddy soil column system growing rice. The temporal variations in NH 3 volatilization and NH 4 + loss in floodwater were monitored after three fertilization dates. The results showed that among the three CHCs, only the BTHC significantly reduced cumulative NH 3 volatilization (by 41.8%), compared to that of the unamended control (without addition of hydrochar or clay-hydrochar-composite). In the unamended control, NH 3 volatilization loss accounted for 31.4% of the applied N fertilizer; with the BTHC amendment, NH 3 volatilization loss accounted for 17.4% of the applied N fertilizer. The reduced N loss via the BTHC amendment resulted in an increased N supply and further improved the N use efficiency and yield by 37.36% and 18.8% compared to that of the control, respectively. The inhibited NH 3 volatilization was mainly attributed to the increased soil NH 4 + retention as a result of BTHC's larger pore volume and specific surface area. In addition, the BTHC treatment significantly reduced the abundance of archaeal amoA genes ( AOA ), which possibly inhibited nitrification and increased soil NH 4 + retention. This study, for the first time, screened BTHC as an excellent material for mitigating NH 3 volatilization from paddy fields. The reduced NH 3 volatilization loss might contribute to increased soil N retention and plant N use efficiency.
研究领域:
农业科学
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环境科学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2021
·
IF 19.503
Libo Deng,Lei Qiu,Rong Hu,Lei Yao,Zijian Zheng,Xiangzhong Ren,Yongliang Li,Chuanxin He
Single-atom catalysts (SAC) stabilized by nitrogen in carbon support are promising candidates for oxygen reduction reaction (ORR). However, conventional preparation methods usually lead to encapsulation of metallic centers in matrix and thus the utilization efficiency (UE) is underexploited. Herein, we report a novel strategy to prepare an Fe-SAC with all Fe atoms anchored on the surface of carbon nanospheres , which exhibited an extraordinary UE of 80% for ORR. This efficiency was achieved by coating polydopamine spheres with silica, followed by the pyrolysis of their blend with FeCl 3 . During thermal treatment, Fe migrates across the silica shell by atomic exchange with silicon, which inhibits the aggregation of Fe and allows Fe atoms to anchor on the surface. As such, it showed excellent ORR activity at a low Fe content. Zn-air batteries assembled using this catalyst showed a peak power density of 113 mW cm −2 and specific capacity of 710 mAh g Zn −1 .
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
Research
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2021
·
IF 0
Yuqing Cheng,Jiafu Shi,Yizhou Wu,Xueying Wang,Yiying Sun,Ziyi Cai,Yu Chen,Zhongyi Jiang
Solar-driven photocatalytic regeneration of cofactors, including reduced nicotinamide adenine dinucleotide (NADH), reduced nicotinamide adenine dinucleotide phosphate (NADPH), and reduced flavin adenine dinucleotide (FADH2), could ensure the sustainable energy supply of enzymatic reactions catalyzed by oxidoreductases for the efficient synthesis of chemicals. However, the elevation of cofactor regeneration efficiency is severely hindered by the inefficient utilization of electrons transferred on the surface of photocatalysts. Inspired by the phenomenon of ferredoxin-NADP+ reductase (FNR) anchoring on thylakoid membrane, herein, a homogeneous catalyst of rhodium (Rh) complex, [Cp∗Rh(bpy)H2O]2+, was anchored on polymeric carbon nitride (PCN) mediated by a tannic acid/polyethyleneimine (TA/PEI) adhesive layer, acquiring PCN@TA/PEI-Rh core@shell photocatalyst. Illuminated by visible light, electrons were excited from the PCN core, then transferred through the TA/PEI shell, and finally captured by the surface-anchored Rh for instant utilization during the regeneration of NADH. The TA/PEI-Rh shell could facilitate the electron transfer from the PCN core and, more importantly, achieved ~1.3-fold elevation of electron utilization efficiency compared with PCN. Accordingly, the PCN@TA/PEI-Rh afforded the NADH regeneration efficiency of 37.8% after 20 min reaction under LED light (405 nm) illumination, over 1.5 times higher than PCN with free Rh. Coupling of the NADH regeneration system with formate dehydrogenase achieved continuous production of formate from carbon dioxide (CO2). Our study may provide a generic and effective strategy to elevate the catalytic efficiency of a photocatalyst through intensifying the electron utilization.
研究领域:
生物化学
·
光催化材料科学
✓ 已验证
DOI
LAND DEGRADATION & DEVELOPMENT
·
2025
·
IF 3.7
Qiuyue Zhang,Yi Tang,Yanjiao Wang,Pengfei Cheng,Lianghui Li,Babar Iqbal,Tingting Zhao,Ruoyu Guo,Xiaojun Zheng,Guanlin Li,Daolin Du
Microplastics and antibiotics are emerging pollutants that accumulate extensively in soils, both exerting adverse effects on soil ecosystems. The mechanisms underlying the combined effects of microplastics and antibiotics on soil microbial metabolism remain insufficiently understood. Therefore, we evaluated the individual and combined effects of different types of microplastics (non-degradable polyethylene and biodegradable polylactic acid) and an antibiotic (oxytetracycline) on soil microbial metabolism characteristics. Our results showed that the microbial community was primarily limited by nitrogen under either microplastics or antibiotics treatments; whereas it was limited by phosphorus under the combined treatments. All treatments, except for the non-biodegradable microplastic treatment, significantly alleviated carbon limitation in the microbial community ( p < 0.01), with the effect being particularly pronounced under combined treatments involving both types of microplastics and antibiotics. Notably, both individual and combined treatments significantly increased the microbial carbon use efficiency ( p < 0.05). The effects of microplastics on microbial metabolism were influenced by both the type of microplastics and their interaction with antibiotics, highlighting the complex nature of these combined environmental pollutants. This study provided an empirical basis for understanding the individual exposure and co-exposure to biodegradable/non-biodegradable microplastics and antibiotics on soil microbial metabolism.
研究领域:
环境科学
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微生物学
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生态学
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产品关联
DOI
高影响因子
ACS Catalysis
·
2017
·
IF 10.614
Xuelin Zou,Zebao Rui,Hongbing Ji
An alumina-supported core–shell-structured NiO@PdO catalyst was prepared for lean CH4 combustion. NiO@PdO plays two roles in promoting the reaction. First, the enhanced NiO-PdO interfacial action accelerates the regular tetragonal PdO lattice construction, stabilizes the PdO particles, and suppresses the hydroxyl/water adsorption during the reaction. Second, the dispersion of shell PdO particles over core NiO improves PdO exposure and utilization efficiency. NiO@PdO/Al2O3 with a molar Ni/Pd ratio of 2/1 exhibits a (>)99% CH4 conversion and a good stability at 400 °C with a low 0.2 wt % Pd loading amount, which is among the best of the state-of-the-art Pd-based catalysts with respect to turnover frequency, Pd utilization efficiency, and Ni addition amount. Such interface-promoted core–shell-structured catalyst design strategy is inspiring for improving noble metal utilization efficiency in CH4 oxidation and other related reaction systems.
研究领域:
催化化学
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环境科学
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Min Liu,Hailan Qin,Haiming Xu,Zhongwei Zou,Chengming Deng,Dongsheng Xia,Qilin Yu,Yi Zheng,Dahong Chen
Hinder self-quenching of active species and augment peroxymonosulfate (PMS) utilization rate is a challenging for advanced oxidation processes (AOPs). Therefore, BiO 1−x Cl with appropriate surface oxygen vacancies (SOVs) was fabricated by microwave reduction method. Experimental results reflect that BOC-2 can remediate 79.4 % doxycycline hydrochloride (50 mg L −1 ) in 1.75 h under the constantly yield active species population (ASP). Simultaneously, theoretical calculation discerns that reasonable SOVs can increase PMS adsorption energy, change PMS adsorption configuration and peroxy bond length. Thus, photo-induced electrons can fast ferry to the confined PMS via electron shuttles formed by SOVs to activate PMS. Ultimately, ASP self-quenching was halted and PMS utilization rate was ameliorated. Furthermore, the structure–activity relationship between SOVs and PMS utilization rate was established and the environmental toxicity of the intermediates was evaluated. This work offers an ingenious strategy to steer PMS activating behavior and boost its utilization rate by defect engineering.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2024
·
IF 8.1
Guanwei Peng,Yanyu Xie,Hui Chen,Jin Zou,Li Li,Chuanfa Luo,Limin Lu,Guojiang Mao
Photo-Fenton-like technology based on H 2 O 2 is considered as an ideal strategy to generate reactive oxygen species (ROS) for antibiotic degradation, but O 2 overflow in the process severely limits the utilization efficiency of H 2 O 2 . Herein, we fabricate Bi 2 MoO 6 (BMO) photocatalyst modified with Frustrated Lewis pairs (FLPs) as a Fenton catalyst model for enhancing reuse of spilled O 2 . The FLPs created by the introduction of cerium and oxygen vacancy were found to contribute to regulate the electronic structure of BMO and further improve the acidic and basic properties of photocatalyst surface. More importantly, the frustrated acid and base sites can enhance the H 2 O 2 and O 2 interfacial adsorption process and provide an Ce 4+ -O v -O 2− active site on the surface of Ce-BMO nanosheets, which can promote O 2 /•O 2 − / 1 O 2 /H 2 O 2 redox cycles to achieve high H 2 O 2 utilization efficiency. Specifically, in the experiment using tetracycline as a photocatalytic degradation object, the degradation activity of Ce-BMO was 2.15 times higher than that of BMO pure phase. Quenching experiments and EPR assays also confirmed that 1 O 2 and •O 2 − were the dominant oxidative species. This study systematically reveals the design of Fenton photocatalytic active sites at the atomic scale and provides new insights into constructing FLPs photocatalysts with high H 2 O 2 utilization efficiency.
研究领域:
环境科学
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材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PLANT PHYSIOLOGY
·
2025
·
IF 4.1
Mi Qi-Li,Lv Hong-Tao,Huang Fei-Fei,Xu Li,Huang Zi-Ying,Yang Wen-Wu,Zou Mei-Yun,Huang Hai-Tao,Zeng Wan-Li,Zhao Jia-Yin,Chen Qing-Xian,Si-Tu Yong-En,Xiang Hai-Ying,Jiang Yuan-Qi,Mai Zhi-Tong,Ding Shu-Yuan,Liu Zhan-Yu,Hu Bo-Keng,Li Liu-Hong,Li Xue-Mei,Yu Min,Wu Fei-Hua,Gao Qian
Nitrogen is a critical nutrient for plant growth and development. While numerous studies have investigated the mechanisms by which nitrate and/or ammonium regulate plant growth, little is known about whether and how amino acids regulate plant leaf development. This study demonstrates that tobacco plants with altered expression levels of an amino acid transporter (LYSINE HISTIDINE TRANSPORTER1, NtLHT1 , Ntab0818090) exhibit significant differences in leaf morphology. Knock-out mutants exhibit elongated and narrower leaves compared to wild-type plants, whereas overexpression (OE) lines display orbicular leaves. Additionally, mutant plants exhibit decreased nitrogen use efficiency (NUE) under half MS medium and delayed development under nitrogen-depleted conditions. Moreover, overexpression lines demonstrate better performance. Although the mutant does not show significant lower level of nitrate or total amino acid content in the developing leaves, its amino acid profile, particularly glutamine (Gln), is significantly altered. Supplementation with Gln in the growth medium, rather than glutamate, can restore the morphological differences observed in mutant leaves, suggesting a pivotal role of Gln in regulating leaf shape. To further elucidate the mechanisms underlying leaf shape regulation, we analyzed endogenous hormone levels and applied exogenous hormones to these lines. Our findings suggest that amino acids transported from source organs, particularly glutamine (Gln), play a key role in controlling leaf development and morphology through the modulation of multiple phytohormones, such as gibberellic acid (GA).
研究领域:
植物学
·
遗传学
·
分子生物学
·
营养生理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）