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Effect of aluminum stress on the quality of Enteromorpha prolifera based on SEM-EDX and FT-IR

Food Quality and Safety 2021年第1期5卷 76-82页

作者： Liping Zhou Ye Wang Yongjiang Lou Haitao Shao Yongyong Li College of Food and Pharmaceutical Sciences Ningbo UniversityNingboChina

To clarify the effect of aluminum stress on the quality of Enteromorpha prolifera(***)and to explore the mechanism of the combination of aluminum and ***,we analyzed changes in the nutrients,micromorphology,element distribution,and spectrum of *** treated with different concentrations of aluminum(0,0.2,2.0,and 20.0μmol· L^(-1))using scanning electron microscopy-energy dispersive spectroscopy(SEM-EDX)and Fourier-transform infrared spectroscopy(FT-IR).The biomass,protein,dietary fiber,and ash contents of *** initially increased and then subsequently decreased with an increasing concentration of ***,the total amount of amino acids *** the surface of *** by SEM-EDX revealed that a high concentration of aluminum damaged the cells of ***,the content of aluminum on the surface of *** cells increased and the absorption of other elements was also *** FT-IR analysis showed that aluminum might combine with the functional groups at the 3408 cm^(-)1,2928 cm1,and 1072 cm^(-)1 peaks in *** and alter the characteristic of the different absorption peaks.

关键词： Enteromorpha prolifera aluminum stress scanning electron microscopy-energy dispersive spectroscopy Fourier-transform infrared spectroscopy

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Effects of Calcium on ATPase Activity and Lipid omposition of Plasma Membranes from Wheat Roots Under aluminum stress

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Agricultural Sciences in China 2003年第9期2卷 970-974页

作者：高翔 SHENZhen-guo 郝建华 CollegeofAgronomy GuangxiUniversityNanning530005P.R.China CollegeofLifeScience NanjingAgriculturalUniversityNanjing210095P.R.China

Effects of calcium on ATPase activities, lipid contents, and fatty acid compositions of plasma membrane from wheat roots were assayed under aluminum stress. The results showed that the increase of calcium concentration in the nutrient solution increased the activity of H + ATPase and the phospholipid content, decreased the activity of Ca 2+ ATPase and the galactolipid of plasma membrane. Owing to the decrease of linolenic acid content, the index of unsaturated fatty acid (IUFA) and index of double bond (DBI) decreased in Altas66. The IUFA and DBI of plasma membrane from Scout66 roots increased because its linolenic acid content increased obviously and its palmitic acid content decreased apparently.

关键词： Wheat Root system Plasma membrane aluminum stress Calcium ATPase

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Silicon Mitigates aluminum Toxicity of Tartary Buckwheat by Regulating Antioxidant Systems

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Phyton-International Journal of Experimental Botany 2024年第1期93卷 1-13页

作者： Anyin Qi Xiaonan Yan Yuqing Liu Qingchen Zeng Hang Yuan Huange Huang Chenggang Liang Dabing Xiang Liang Zou Lianxin Peng Gang Zhao Jingwei Huang Yan Wan Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural AffairsSichuan Engineering&Technology Research Center of Coarse Cereal IndustrializationCollege of Food and Biological EngineeringChengdu UniversityChengdu610106China Research Center of Buckwheat Industry Technology School of Life SciencesGuizhou Normal UniversityGuiyang550001China

aluminum (Al) toxicity is a considerable factor limiting crop yield and biomass in acidic soil. Tartary buckwheatgrowing in acidic soil may suffer from Al poisoning. Here, we investigated the influence of Al stress on the growthof tartary buckwheat seedling roots, and the alleviation of Al stress by silicon (Si), as has been demonstrated inmany crops. Under Al stress, root growth (total root length, primary root length, root tips, root surface area, androot volume) was significantly inhibited, and Al and malondialdehyde (MDA) accumulated in the root tips. At thesame time, catalase (CAT) and ascorbate peroxidase activities, polyphenols, flavonoids, and 1,1-diphenyl-2-picrylhydrazyl(DPPH) and 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) free-radical scavenging abilitywere significantly decreased. After the application of Si, root growth, Al accumulation, and oxidative damage wereimproved. Compared to Al-treated seedlings, the contents of ·O2− and MDA decreased by 29.39% and 25.22%,respectively. This was associated with Si-induced increases in peroxidase and CAT enzyme activity, flavonoidcompounds, and free-radical scavenging (DPPH and ABTS). The application of Si therefore has positive effectson Al toxicity in tartary buckwheat roots by reducing Al accumulation in the roots and maintaining oxidationhomeostasis.

关键词： Tartary buckwheat aluminum stress silicon root growth oxidative stress

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Effects of aluminum on ATPase Activity and Lipid Composition of Plasma Membranes from Wheat Roots

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Agricultural Sciences in China 2002年第3期1卷 285-290页

作者： HE Long-fei,LIU You-liang, SHEN Zhen-guo and WANG Ai-qin(College of Agronomy, Guangxi University, Nanning 530005 Department of Agronomy, NanjingAgricultural University, Nanjing 210095) College of Agronomy Guangxi University Nanning 530005 Department of Agronomy Nanjing Agricultural University Nanjing 210095

The effects of aluminum on ATPase activity and lipid composition of the plasma membranes isolated from root tips of Al-tolerant (Altas 66) or Al-sensitive (Scout 66) cultivar of Triticum aestivum L. was assayed. The results showed that both cultivars had similar changes in H+-ATPase and Ca2+-ATPase activities after aluminum treatment. Exposure of both cultivars to 20 and 100 (mol/L aluminum for 5 d significantly decreased the activities of Ca2 + -ATPase of plasma membranes. The activities of H+-ATPase in plasma membrane increased under 20 μmol/L aluminum and decreased at 100 ***/L aluminum. With aluminum treatment, the PL content of plasma membrane decreased, but GL content increased. The ratio of PL to GL decreased more distinctly in Scout 66 than that in Altas 66. Treated with 20 and 100 μmol/L aluminum, linolenic acid content and the index of unsaturated fatty acids decreaced greatly in Scout 66, but the index of unsaturated fatty acids in Altas 66 increased slightly.

关键词： aluminum stress H^+-ATPase Ca^(2+)-ATPase H^+-pump activity Lipids

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Nitrogen Metabolism,Carbohydrates and Sucrose in Young Plants of Paricá(Schizolobium amazonicum)Submitted to Different Dosages of aluminum

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American Journal of Plant Sciences 2018年第4期9卷 865-879页

作者： Vitor Resende do Nascimento Diana Jhulia Palheta de Sousa Jéssica Suellen Silva Teixeira Jose Jean Borges Leao Liliane Correa Machado Glauco Andre dos Santos Nogueira Candido Ferreira de Oliveira Neto Ana Ecídia de Araújo Brito Ricardo Shigueru Okumura Waldemar Viana de Andrade Júnior Department of Forest Sciences Federal Rural University of Amazonia(UFRA)BelémBrazil Department of Agronomy Federal Rural University of Amazonia(UFRA)BelémBrazil Federal Rural University of Amazonia(UFRA) BelémBrazil Federal Rural University of Amazonia(UFRA) ParauapebasBrazil

The paricá [Schizolobium amazonicum Huber ex Ducke] is a native species of the Amazon region, belonging to the Fabaceae family and is a legume that has great social and economic importance, raw material for the manufacture of wood panels. Heliophilous, with wood of light density and good workability. Amazonian soils are highly weathered and characterized by high acidity, so Al harms the growth and development of sensitive plants, as well as the presence of resistant and/or tolerant plants. Thus, in this work, we sought to study the biochemical metabolism alterations generated in young plants of Schizolobium amazonicum Huber ex Ducke affected at different dosages of AlCl3. The research was conducted in a greenhouse of the Federal Rural University of Amazonia, using pre-scarified paricá seeds, which were seeded in plastic containers of 3.5 L capacity, with black soil fertilized with NPK 15-15-20. On the 8th day after sowing (DAS), thinning of 5 seedlings was performed for 2, and on day 12 of 2 for 1 seedling. The treatments started after 1 month and 22 days of sowing and the plants were collected 24 days later. A completely randomized experimental design (RED) was used, with 6 treatments (Control, Al 15 mg/L-1, Al 30 mg/L-1, Al 45 mg/L-1, Al 60 mg/L-1 and Al 75 mg/L-1) with 5 replicates each (one plant/pot) totaling 30 experimental units. The AlCl3 dosages resulted in considerable changes in the biochemical variables evaluated, especially when the 75 mg·L-1 dosage was applied. The considerable reduction in some variables such as nitrate reductase, glycine betaine and total soluble carbohydrates of these compounds to the applied AlCl3·6H2O dosages, is a way to create resistance mechanisms to try to overcome stress or as a way of showing limitations in the applied dosages. The species was sensitive to the AlCl3 dosages, and resisted only 23 days to the imposed stress. However, it presented defense mechanisms that were able to prolong the physiological acti

关键词： Dosages aluminum stress Schizolobium amazonicum

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Effects of aluminum Toxicity on Physiological Indices of Jatropha curcas ***

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Agricultural Science & Technology 2021年第4期22卷 11-16页

作者： LI Rong-feng LAN Ye-lin College of Agriculture and Food Engineering Baise UniversityBaise 533000PRC

Jatropha curcas was taken as the test material,6 concentrations including 0,25,50,100,200 and 400μmol/L AlCl3,plus 3 time gradients including 7,14 and 21 d,were set to study the effects of Al^(3+)stress on the antioxidant system of Jatropha curcas *** results showed that with the Al^(3+)treatment being applied,protein content increased first,then decreased and finally increased with the increase of Al^(3+)concentration;the soluble sugar content increased first and then decreased with the increase of Al^(3+)*** low concentration of Al^(3+)treatment,Pro content,MDA content and POD activity of Jatropha curcas *** leaves changed a little,while under high concentration of Al^(3+)treatment,Pro and MDA content of Jatropha curcas *** leaves rapidly accumulated,POD activity increased and they showed a trend of increase with the increase of Al^(3+)concentration;From the perspective of Al^(3+)stress time,protein content,soluble sugar content,MDA content and POD activity increased with stress time being prolonged,while Pro content decreased with stress time being *** results indicated that the leaves of Jatropha curcas *** had certain self-protection and remediation abilities under Al^(3+)stress.

关键词： Jatropha curcas L. aluminum stress Soluble sugar content Pro content MDA content POD activity

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用蛋白质血型方法鉴定水稻根中铝毒响应蛋白：半胱氨酸酶在铝响应中起关键作用(英文)

用蛋白质血型方法鉴定水稻根中铝毒响应蛋白：半胱氨酸酶在铝响应...

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广东省植物学会学术研讨会

作者：杨乔松 Laboratory of Molecular Plant Physiology College of Life Sciences South China Agricultural University GuangzhouChina

aluminum (Al) toxicity is a serious limitation to worldwide crop *** is one of the most Al-tolerant crops and also serves as an important monocot model *** study aims to identify Al-responsive proteins in rice,based on evidence that Al resistance is an inducible *** Al treatment systems were applied in the study:Al-containing simple Ca solution culture and Al-containing complete nutrient solution *** prepared from rice roots were separated by *** 2-DE patterns were compared and the differentially expressed proteins were identified by MS.A total of 17 Al-responsive proteins were identified,with 12 of which being up-regulated and 5 *** the up-regulated proteins are Cu-Zn SOD,GST and S-adenosylmethionine synthetase 2,which are the consistently known Al-induced enzymes previously detected at the transcriptional level in other plants. More importantly,a number of other identified proteins including cysteine synthase (CS), 1-aminocyclopropane-1-carboxylate oxidase,G protein β subunit-like protein,ABA-and stress-induced protein,putative Avr9/Cf-9 rapidly elicited protein 141 and 33 kDa secretory protein are novel Al-induced *** of these proteins are functionally associated with signaling transduction,antioxidation and ***,as consistently detected in both Al stress systems,was further validated by Western blot and CS activity ***,the metabolic products of CS catalysis,*** the total glutathione pool and reduced glutathione,were also significantly increased in response to Al *** together,our results suggest that antioxidation and detoxification ultimately related to sulfur metabolism,particularly to CS,may play a functional role in Al adaptation for rice.

关键词： aluminum stress Cysteine synthase Mass spectrometry Rice Two-dimensional gel electrophoresis

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