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Artykuły w czasopismach na temat "Seed Zn accumulation"
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RA, Sperotto, Ricachenevsky FK, V. de A Waldow, Müller ALH, Dressler VL i Fett JP. "Rice grain Fe, Mn and Zn accumulation: How important are flag leaves and seed number? ". Plant, Soil and Environment 59, No. 6 (22.05.2013): 262–66. http://dx.doi.org/10.17221/841/2012-pse.
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Flag leaves play an important role in synthesis and translocation of photoassimilates in the rice plant, affecting grain yield; similarly they were believed to be a major source of remobilized minerals for the seeds. At the same time, the seed’s sink strength plays an important role in dry matter accumulation. To investigate the relative contribution of rice flag leaves and seed sink strength to seed mineral accumulation, field experiments were conducted to evaluate the effect of flag leaf or half-seed removal on seed Fe, Mn and Zn concentration and content. Flag leaf or 50% of the seeds were removed at anthesis. Seed Fe, Mn and Zn accumulation were not affected by flag leaf or second leaf removal. Plants with only half of the seeds showed higher Fe and Zn seed concentrations, but similar Mn concentrations. It is concluded that the flag leaf is not necessary for metal remobilization to the seeds and that seed sink strength and seed number have different roles in Fe/Zn and Mn seed concentrations.
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Sadeghzadeh, Behzad, Seyed Jamali i Fatemeh Vafadar-Shamasbi. "Identification of MFLP fingerprint for higher seed zinc accumulation in barley DH population". Genetika 49, nr 3 (2017): 843–52. http://dx.doi.org/10.2298/gensr1703843s.
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Selection through molecular markers for seed Zn accumulation might be an efficient complementary breeding tool in barley breeding. To develop a specific molecular markers, 150 DH lines derived from a cross between Clipper (low-Zn-accumulator) and Sahara-3771 (high-Zn-accumulator) were screened under field and glasshouse conditions. Microsatellite-anchored fragment length polymorphism (MFLP) fingerprint generated by SSR-anchor primer MF128 in combination with AFLP primer MseI-AGA (5?-GATGAGTCCTGAGTAAAGA-3?) was identified as a candidate marker for tagging seed Zn accumulation gene. The sequencing of the band showed a marker of 369 bp with the sequence of SSR anchor primer MF128 and MseI-AGA at the two ends as expected. The MFLP marker associated with higher seed Zn accumulation has potential to be converted to a simple, sequence-specific, PCR-based, low-cost marker amenable to large populations, making it potentially viable for marker-assisted selection in barley breeding. This marker might be useful in the improvement of barley productivity and nutritional quality in Zn-deficient environments.
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Nirschl, Matheus Gomes, Risely Ferraz De Almeida, Eduardo Zavaschi, Lílian Angélica Moreira, Godofredo César Vitti i Rafael Otto. "Assessing the Effectiveness of Zn Acetate and Oxide as Alternatives for Corn and Soybean Seed Treatment in Sandy and Clay Soil". Journal of Agricultural Science 9, nr 12 (15.11.2017): 63. http://dx.doi.org/10.5539/jas.v9n12p63.
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Zinc (Zn) is the micronutrient with the lowest availability in agricultural soils, and consequently 50 % of the world’s soils present Zn deficient. To test the viability of alternative Zn sources (Zn acetate and Zn oxide) to corn and soybean seed treatments, we ran an experiment using these two alternatives at contrasting application rates (0; 0.25; 0.50; 0.76 and 1.01 g kg-1) applied to soybean and corn seeds that were subsequently sowed in sandy and clay soils. We measured: Zn accumulation, dry matter and germination, and analyzed this data using uni (LSD-test) and multivariate analysis (Principal Component Analysis, PCA). Results of the PCA showed that the sandy soil yielded higher dry matter and Zn accumulation than the clay soil. The corn provided higher dry matter while the soybean showed enhanced Zn accumulation and germination. The LSD test showed that corn presented positive Zn accumulation in response to Zn rates in both sandy and clay soil. For soybeans, this effect was only observed in sandy soil, while the clay soil presented decreases in dry matter and germination due to Zn rates. Overall, our findings reveal that both Zn acetate and Zn oxide are viable alternatives for supplying Zn to corn seed treatment in sandy and clay soil, and to soybean seed treatment in sandy soil. We suggest that more research should be undertaken to understand the response of soybean seed treatments to Zn supply, especially in clay soil.
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Karmakar, Mrinmoy, Narayan Chandra Sarkar i Yashbir Singh Shivay. "Agronomic Biofortification of Zinc in Lentil". International Journal of Bio-resource and Stress Management 12, nr 2 (30.04.2021): 095–107. http://dx.doi.org/10.23910/1.2021.2150a.
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The field experiments were conducted to study effect of zinc (Zn) application on growth, yield, Zn uptake and Zn use indices of lentil (Lens culinaris or Lens esculanta) during rabi (October to March) seasons 2016 and 2017 in red and lateritic soil of West Bengal, India. There were two main plot treatments i.e., crop establishment methods (zero tillage and conventional tillage) and seven sub-plot treatments i.e. levels of Zn and methods of application (seed coating @ 0.6% ZnSO4.7H2O, 1.2% ZnSO4.7H2O and 1.8% ZnSO4.7H2O, two foliar sprays @ 0.5% ZnSO4.7H2O, three foliar sprays @ 0.5% ZnSO4.7H2O, seed coating @ 1.2% ZnSO4.7H2O+two foliar sprays @ 0.5% ZnSO4.7H2O and control were laid out in split plot design replicated thrice. The crop establishment methods did not show any significant influence on growth, yield and nutrient uptake by lentil. However, among the levels of Zn and methods of application, seed coating @ 1.8% ZnSO4.7H2O produced significantly taller plants, more leaf area index, dry matter accumulation and yield. Regarding Zn concentration, combination of seed coating and foliar application @ 1.2% ZnSO4.7H2O+two foliar sprays @ 0.5% ZnSO4.7H2O resulted in significantly higher concentration than other treatments. Zn use efficiency was significantly higher (seed coating @ 1.2% ZnSO4.7H2O for agronomic efficiency and physiological efficiency, seed coating @ 0.6% ZnSO4.7H2O for partial factor productivity and seed coating @ 1.8% ZnSO4.7H2O for apparent Zn recovery) as compared to that of foliar application or combined application of seed coating and foliar spray.
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Sadeghzadeh, Behzad, Zed Rengel, Chengdao Li i Hua’an Yang. "Molecular marker linked to a chromosome region regulating seed Zn accumulation in barley". Molecular Breeding 25, nr 1 (31.07.2009): 167–77. http://dx.doi.org/10.1007/s11032-009-9317-4.
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Bellaloui, Nacer, Laila Khandaker, Masum Akond, Stella K. Kantartzi, Khalid Meksem, Alemu Mengistu, DA Lightfoot i My Abdelmajid Kassem. "Identification of QTL Underlying Seed Micronutrients Accumulation in ‘MD 96-5722’ by ‘Spencer’ Recombinant Inbred Lines of Soybean". Atlas Journal of Plant Biology 1, nr 3 (11.06.2017): 39–49. http://dx.doi.org/10.5147/ajpb.v1i3.112.
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Genetic mapping of quantitative trait loci (QTL) associated with seed nutrition levels is almost non-existent. The objective of this study was to identify QTLs associated with seed micronutrients (iron, Fe; zinc, Zn; bororn, B; manganese, Mn; and copper, Cu) accumulation (concentration) in a population of 92 F5:7 recombinant inbred lines (RILs) that derived from a cross between MD 96-5722 (MD) and ‘Spencer’. For this purpose, a genetic linkage map based on 5,376 Single Nucleotide Polymorphism (SNP) markers was constructed using the Illumina Infinium SoySNP6K BeadChip array. The RILs were genotyped using 537 polymorphic, reliably segregating SNP markers. A total of 23 QTLs for micronutrients Fe, Zn, B, Mn, and Cu have been identified and mapped on eight linkage groups (LGs) of the soybean genome. Five QTLs were detected for Fe (qIRO001- qIRO005) on LGs N, A1, K, J, and G. Seven QTLs for Zn (qZIN001-qZIN007) on LGs D1a (Chr 1), N (Chr 3), F (Chr 5), B2 (Chr 14), J (Chr 16), A1 (Chr 5), and K (Chr 9). Two QTLs for B (qBOR001 and qBOR002) were detected on LGs N and A1. Four QTLs were detected for Mn (qMAN001-qMAN004) on LGs N, A1, K, and J, and five QTLs were detected for Cu (qCOP001- qCOP005) on LGs N, A1, K, J, and G). It was observed that the four QTLs for Zn, Cu, Fe, and Mn on LGs N (Chr 3), LG A1 (Chr 5), and LG J (Chr 16) were clustered in a similar region of the linkage groups, suggesting possible shared physiological and genetic mechanisms. The QTLs detected in this study are novel and will contribute to our understanding of the genetic basis of seed mineral nutrition. This research would allow breeders to efficiently select for higher seed nutritional qualities to meet the seed industry and human and livestock nutritional needs.
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Amooaghaie, Rayhaneh, Maryam Norouzi i Mohammad Saeri. "Impact of zinc and zinc oxide nanoparticles on the physiological and biochemical processes in tomato and wheat". Botany 95, nr 5 (maj 2017): 441–55. http://dx.doi.org/10.1139/cjb-2016-0194.
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In this study, the effects of various concentrations of zinc and zinc oxide nanoparticles (nZn, nZnO) were evaluated in tomato and wheat. Results showed that at lower concentrations, nZn and nZnO augmented seed germination and growth parameters, whereas with higher concentrations, the nanoparticles reduced these traits. Zn concentrations corresponding to Zn dissolved (3–23 mg Zn·L−1) from nanoparticles (NPs) did not significantly affect the germination indices in either species. Compared with the bulk counterparts of ZnO, NPs exerted more toxicity on seed germination, growth parameters, and chlorophyll and carotenoid contents, and also increased Zn bioaccumulation more. More often than not, nZnO provoked more adverse symptoms than nZn at equivalent concentrations. In both species, the Zn accumulation in roots and shoots followed the order: Zn2+ ions > nZn > nZnO > bulk ZnO > control. Exposure to 200 mg Zn·L−1 nZn and nZnO increased H2O2 accumulation and malondealdehyde (MDA) levels, which were more pronounced in tomato than wheat. The results suggested that the toxicity of NPs could be due to the particle itself, or from the Zn2+ ions dissolved from NPs. Moreover, nanotoxicity, like other stresses, caused oxidative stress in both plants, and the differences in proline accumulation and the antioxidant enzyme activities of leaves, especially APX activity, at least in part, explained the higher sensitivity of tomato to NPs than wheat.
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Huber, Steven C., Kunzhi Li, Randall Nelson, Alexander Ulanov, Catherine M. DeMuro i Ivan Baxter. "Canopy position has a profound effect on soybean seed composition". PeerJ 4 (13.09.2016): e2452. http://dx.doi.org/10.7717/peerj.2452.
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Although soybean seeds appear homogeneous, their composition (protein, oil and mineral concentrations) can vary significantly with the canopy position where they were produced. In studies with 10 cultivars grown over a 3-yr period, we found that seeds produced at the top of the canopy have higher concentrations of protein but less oil and lower concentrations of minerals such as Mg, Fe, and Cu compared to seeds produced at the bottom of the canopy. Among cultivars, mean protein concentration (average of different positions) correlated positively with mean concentrations of S, Zn and Fe, but not other minerals. Therefore, on a whole plant basis, the uptake and allocation of S, Zn and Fe to seeds correlated with the production and allocation of reduced N to seed protein; however, the reduced N and correlated minerals (S, Zn and Fe) showed different patterns of allocation among node positions. For example, while mean concentrations of protein and Fe correlated positively, the two parameters correlated negatively in terms of variation with canopy position. Altering the microenvironment within the soybean canopy by removing neighboring plants at flowering increased protein concentration in particular at lower node positions and thus altered the node-position gradient in protein (and oil) without altering the distribution of Mg, Fe and Cu, suggesting different underlying control mechanisms. Metabolomic analysis of developing seeds at different positions in the canopy suggests that availability of free asparagine may be a positive determinant of storage protein accumulation in seeds and may explain the increased protein accumulation in seeds produced at the top of the canopy. Our results establish node-position variation in seed constituents and provide a new experimental system to identify genes controlling key aspects of seed composition. In addition, our results provide an unexpected and simple approach to link agronomic practices to improve human nutrition and health in developing countries because food products produced from seeds at the bottom of the canopy contained higher Fe concentrations than products from the top of the canopy. Therefore, using seeds produced in the lower canopy for production of iron-rich soy foods for human consumption could be important when plants are the major source of protein and human diets can be chronically deficient in Fe and other minerals.
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Sadeghzadeh, Behzad, Zed Rengel i Chengdao Li. "Quantitative Trait Loci (QTL) of Seed Zn Accumulation in Barley Population Clipper X Sahara". Journal of Plant Nutrition 38, nr 11 (26.06.2015): 1672–84. http://dx.doi.org/10.1080/01904167.2014.991036.
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Bashir, Safdar, Abdul Basit, Rana Nadeem Abbas, Shahbaz Naeem, Saqib Bashir, Niaz Ahmed, Muhammad Saeed Ahmed i in. "Combined application of zinc-lysine chelate and zinc-solubilizing bacteria improves yield and grain biofortification of maize (Zea mays L.)". PLOS ONE 16, nr 7 (13.07.2021): e0254647. http://dx.doi.org/10.1371/journal.pone.0254647.
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Malnutrition a health disorders arising due to over or low use of minerals, vitamins and nutritional substances required for proper functioning of body tissues and organs. Zinc (Zn) is the most important mineral required for the normal metabolism of plants and humans. Zinc-deficiency is one of the major cause of malnutrition globally. Maize is highly susceptible to Zn-deficiency and inflicts Zn-deficiency to humans and other animals being nourished on it. This study evaluated the effect of zinc-lysine chelate alone (0.1, 0.5, 1.0 and 1.5%) as seed priming and in combination with Zn-solubilizing bacteria (PMEL-1, PMEL-48, PMEL-57and PMEL-71)) on grain biofortification of autumn maize. The Zn accumulation in different parts (roots, stem, leaves, grains and cob pith) was quantified. Results indicated that Zn contents were 18.5% higher in the seeds primed with 1.5% solution of Zn-lysine chelate and inoculation of ZSB strains compared to control treatments. Seed priming with 1.5% Zn-lysine chelate in combination with ZSB inoculation significantly improved cob diameter and cob length by 16.75% and 42% during 2016 and by 11.36% and 34.35% during 2017. The increase in 100 grains weight over control was 18.4% and 15.27% for 2016 and 2017, respectively. The Zn contents were increased by 15.3%, 15.6%, 49.1%, and 33.0% in grain, cob-pith, stemand roots, respectively compared from control. Thus, the combined application of 1.5% Zn-lysine chelates along with ZSB inoculation could be used for combating malnutrition.
Rozprawy doktorskie na temat "Seed Zn accumulation"
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Sadeghzadeh, Behzad. "Mapping of chromosome regions associated with seed zinc accumulation in barley". University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0204.
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[Truncated abstract] Zinc deficiency in crops is the most widespread micronutrient deficiency, with about 50% of the cereal-growing areas worldwide containing low levels of plant-available Zn. Zinc plays multiple key roles in different metabolic and physiological processes; its deficiency in crops reduces not only grain yield, but also the nutritional quality of grains. Insufficient micronutrient intake, particularly Zn and Fe, afflicts over 3 billion people in the world, mainly in developing countries. Increasing the amount of Zn in food crops can contribute to improving the Zn status of people. Furthermore, Zn-dense seeds have agronomic benefits, resulting in greater seedling vigour, bigger root system and higher crop yield when sowed to soils with low plant-available Zn. Enhancing nutrient content and nutritional quality of crops for human nutrition is a global challenge currently, but it was mostly ignored during the breeding process in the past. There is a significant genotypic variation for seed Zn accumulation in several crops (including barley) which could be exploited in the breeding programs to produce genotypes with higher seed Zn concentration and content. However, the progress in Zn efficiency until now has mainly relied on conventional plant breeding approaches that have had limited success. Therefore, reliable alternative methods are required. Enhancing mineral nutrition through plant biotechnology may be a sustainable and beneficial approach in developing Zn-dense seeds in the staple crops. ... This DNA band was sequenced and converted into a simple sequence-specific PCR-based marker, which was designated as SZnR1 (seed Zn-regulator1). The developed marker is very easy to score, is inexpensive to run and amenable for a large number of plant samples. The successful development of SZnR1 molecular marker linked to chromosome region associated with seed Zn concentration and content using MFLP in this study illustrates the advantage of this technique over some other DNA fingerprinting methods used for identification of molecular markers for marker-assisted selection (MAS). In conclusion, the greater Zn efficiency of Sahara over Clipper under sufficient Zn supply may be attributed to its higher uptake of Zn. It appears that soil-based pot experiments under controlled condition may offer potential improvements over field experiments in screening for seed Zn accumulation. Shoot and seed Zn concentration and content can be used to diagnose the Zn statues of barley genotypes, and may be a useful selection criterion for Zn efficiency in large populations like doubled-haploid populations aimed at developing molecular markers for Zn efficiency. Identified QTLs influencing seed Zn concentration were repeatable in the field and glasshouse conditions, suggesting their robustness across environments as well as their value in marker-assisted selection. The developed PCR-based marker SZnR1 and other molecular markers associated with the QTLs on the short and long arms of chromosome 2H have the potential to be used for marker-assisted selection in breeding for Zn-dense seed in barley.
Części książek na temat "Seed Zn accumulation"
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Punetha, Deepshekha, Geeta Tewari, Chitra Pande, Girish Kharkwal i Sonal Tripathi. "Assessment of Phytoremediation Efficiency of Coriandrum sativum in Metal Polluted Soil and Sludge Samples". W Advances in Environmental Engineering and Green Technologies, 58–85. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4921-6.ch004.
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A greenhouse pot experiment was conducted to evaluate the phytotoxic effect of heavy metals (Zn, Cu, Ni, and Cr) on the growth (plant height, plant and seed weight) of Coriandrum sativum and uptake of metals. For this purpose, the polluted soil and sludge samples were collected from three sites of Moradabad: Karula nala (KS), Dhauri nala (DS), and Karula nala sludge (KSL). Metal content in the plant and soil was determined by AAS technique. The plants were also hydrodistilled using Clevenger apparatus and the extracted oil was analyzed by GC and GC/MS. The content of copper in KS and KSL, Zn in KS, Ni in DS and KSL, and Cr in KS was above the permissible limits according to Indian standards. Plant weight was significantly affected in the different soil samples. Among all the collected polluted soil and sludge samples, DS sample showed the highest metal accumulation, while in the KSL sample, the plant could not survive. The study revealed that coriander can be used to remediate the contaminated soil with economic return and metal free final product, essential oil.
Streszczenia konferencji na temat "Seed Zn accumulation"
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VOJEVODA, Lidija, Anita OSVALDE, Gunta ČEKSTERE i Andis KARLSONS. "ASSESSMENT OF THE IMPACT OF VERMICOMPOST AND PEAT EXTRACTS ON NUTRIENT ACCUMULATION IN TUBERS AND POTATO YIELD". W RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.166.
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Investigations on the potential beneficial effect of humic substances on crop plant cultivation under extremely diverse soil and climatic conditions is of global character, thereby knowledge obtained on the basis of local investigations are of great importance world-wide. The aim of the research was to evaluate the effect of different application methods (seed tuber treatment and foliar application) of commercially-produced peat and vermicompost extracts on nutrient uptake in tubers and yield of potato (Solanum tuberosum L.) using field experiments in organic farming system with potato variety ‘Borodjanskij Rozovij’. The tested extracts from the organic products included: peat extract (K45) and vermicompost extract (B45) obtained at +45°C by cavitation. The investigation was carried out at Stende Research Centre (Institute of Agro-resources and Economics) from 2011 to 2012. The chemical composition (N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo, B) of potato tubers was determined. The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers, but 50% of cases showed reduction in Ca and Cu content that could influence the storage of tubers. The use of peat extract was significantly effective when the tubers were treated before planting. On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase.