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https://www.readbyqxmd.com/read/29340613/biomass-increase-under-zinc-deficiency-caused-by-delay-of-early-flowering-in-arabidopsis
#1
Xiaochao Chen, Uwe Ludewig
Plants generally produce more biomass when all nutrients are available in sufficient amounts. In addition to environmental constraints, genetic and developmental factors, such as the transition from vegetative to reproductive growth, restrict maximal yield. Here we report the peculiar observation that a subset of Arabidopsis thaliana accessions produced larger shoot rosette diameters when grown in zinc (Zn)-deficient conditions, compared with Zn-sufficient conditions. This was associated with early flowering that restricted the leaf length under Zn sufficiency...
January 11, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29340223/yabby3-orthologous-genes-in-wild-tomato-species-structure-variability-and-expression
#2
M A Filyushin, M A Slugina, A V Shchennikova, E Z Kochieva
Evolution of the genes encoding YABBY transcription factors is believed to be one of the key reasons for flat leaf emergence from the radially symmetrical stem and gynoecium diversity. YABBY genes determine the identity of the abaxial surface of all aboveground lateral organs in seed plants. In the present study, complete sequences of YABBY3-orthologous genes were identified and characterized in 13 accessions of cultivated and wild tomato species with diverse morphophysiology of leaves, flowers, and fruits...
October 2017: Acta Naturae
https://www.readbyqxmd.com/read/29335584/genome-wide-identification-and-characterization-of-spl-transcription-factor-family-and-their-evolution-and-expression-profiling-analysis-in-cotton
#3
Caiping Cai, Wangzhen Guo, Baohong Zhang
Plant specific transcription factors, SQUAMOSA promoter-binding protein-like (SPL), are involved in many biological processes. However, no systematical study has been reported in cotton. In this study, a total of 177 SPL genes were identified, including 29, 30, 59 and 59 SPLs in Gossypium arboreum, G. raimondii, G. barbadense, and G. hirsutum, respectively. These SPL genes were classified into eight phylogenetical groups. The gene structure, conserved motif, and clustering were highly conserved within each orthologs...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334718/-diet-and-nutrition-interventions-prevent-gestational-diabetes-mellitus
#4
Z Y Yang
Gestational diabetes mellitus (GDM) is one of the most common complications during pregnancy, with rising trend over the years. Dietary nutrient intake (protein, fat and fatty acids, carbohydrate, vitamin D, vitamin E, iron, zinc, selenium and inositol et al.), dietary pattern and probiotics may be related to GDM occurrence. Dietary factors are modifiable factors for preventing GDM. The study reviewed the roles of these dietary factors in preventing GDM. Results showed that plant-based dietary pattern may lower the risk of GDM and dietary pattern characterized with high animal protein, high fat and low carbohydrate may increase the risk of GDM...
January 6, 2018: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29327969/atozf1-positively-regulates-defense-against-bacterial-pathogens-and-npr1-independent-salicylic-acid-signaling
#5
Nidhi Singh, Swadhin Swain, Anupriya Singh, Ashis Kumar Nandi
Plant hormone salicylic acid (SA) plays critical roles in defense signaling against biotrophic pathogens. Pathogen inoculation leads to SA accumulation in plants. SA activates a transactivator protein NPR1, which, in turn, transcriptionally activates many defense response genes. Reports also suggest the presence of NPR1-independent pathways for SA signaling in Arabidopsis. Here, we report the characterization of a zinc-finger protein-coding gene AtOZF1 that positively influences NPR1-independent SA signaling...
January 12, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29322395/lead-zinc-and-cadmium-uptake-accumulation-and-phytoremediation-by-plants-growing-around-tang-e-douzan-lead-zinc-mine-iran
#6
Reza Hesami, Azam Salimi, Seyed Majid Ghaderian
In the current study, soils of Tang-e Douzan mine, located in Isfahan, Iran, were collected and analyzed for soluble, exchangeable, and total amounts of Pb, Zn, Cd, Ca, and Mg. The maximum Pb, Zn, Cd, Ca, and Mg concentrations in soils were 2500, 1100, 59, 43,800, and 1320 mg/kg for total metals, 86, 83, 6.3, 4650, and 48 mg/kg for their exchangeable fractions, and 59, 3.7, 0.53, 430, and 6.4 mg/kg for their soluble fractions, respectively. All specimens collected, including 69 plant species, were analyzed for Pb, Zn, and Cd...
January 10, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29320848/assessment-of-metal-immission-in-urban-environments-using-elemental-concentrations-and-zn-isotope-signatures-in-leaves-of-nerium-oleander
#7
Ana Martín, Cristina Caldelas, Dominik Jakob Weiss, Iker Aranjuelo, Enrique Navarro
A thorough understanding of spatial and temporal emission and immission patterns of air pollutants in urban areas is challenged by the low number of air quality monitoring stations available. Plants are promising low cost biomonitoring tools. However, source identification of the trace metals incorporated in plant tissues (i.e. natural vs. anthropogenic) and the identification of the best plant to use remain fundamental challenges. To this end, Nerium oleander L. collected in the city of Zaragoza (NE Spain) has been investigated as a biomonitoring tool for assessing the spatial immission patterns of airborne metals (Pb, Cu, Cr, Ni, Ce, and Zn)...
January 10, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29320607/functional-analysis-of-the-seven-in-absentia-sina-ubiquitin-ligase-family-in-tomato
#8
Wenjie Wang, Youhong Fan, Xiangli Niu, Min Miao, Joanna Kud, Bangjun Zhou, Lirong Zeng, Yongsheng Liu, Fangming Xiao
Seven in absentia (SINA) protein is one subgroup of ubiquitin ligases possessing an N-terminal cysteine-rich Really Interesting New Gene (RING) domain, two zinc-finger motifs and a C-terminal domain responsible for substrate-binding and dimerization. In tomato (Solanum Lycopersicum), the SINA gene family has six members and we characterize in this study all tomato SINA (SlSINA) genes and the gene products. Our results show that SlSINA genes are differentially regulated in leaf, bud, stem, flower and root. All SlSINA proteins possess RING-dependent E3 ubiquitin ligase activity, exhibiting similar specificity towards the E2 ubiquitin-conjugating enzyme...
January 10, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29307117/genetic-mapping-of-quantitative-trait-loci-for-tuber-cadmium-and-zinc-concentration-in-potato-reveals-associations-with-maturity-and-both-overlapping-and-independent-components-of-genetic-control
#9
Molla F Mengist, Sheila Alves, Denis Griffin, Joanne Creedon, Mike J McLaughlin, Peter W Jones, Dan Milbourne
Cd is a toxic metal, whilst Zn is an essential for plant and human health. Both can accumulate in potato tubers. We examine the genetic control of this process. The aim of this study was to map quantitative trait loci (QTLs) influencing tuber concentrations of cadmium (Cd) and zinc (Zn). We developed a segregating population comprising 188 F1 progeny derived from crossing two tetraploid cultivars exhibiting divergent tuber-Cd-accumulation phenotypes. These progeny were genotyped using the SolCap 8303 SNP array, and evaluated for Cd, Zn, and maturity-related traits...
January 6, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29305420/in-vitro-reconstitution-functional-dissection-and-mutational-analysis-of-metal-ion-transport-by-mitoferrin-1
#10
Eric T Christenson, Austin S Gallegos, Anirban Banerjee
Iron is universally important to cellular metabolism and mitoferrins-1 and -2 have been proposed to be the iron importers of mitochondria, the cell's assembly plant of heme and iron-sulfur clusters. These iron-containing prosthetic groups are critical for a host of physiological processes ranging from oxygen transport and energy consumption to maintaining protein structural integrity. Mitoferrin-1 (Mfrn1) belongs to the mitochondrial carrier (MC) family and is atypical given its putative metallic cargo; most MCs transport nucleotides, amino acids, or other small to medium-size metabolites...
January 5, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29304483/genome-wide-identification-of-phd-finger-genes-and-expression-pattern-analysis-under-various-treatments-in-moso-bamboo-phyllostachys-edulis
#11
Yameng Gao, Huanlong Liu, Yujiao Wang, Fei Li, Yan Xiang
Plant homeodomain (PHD)-finger proteins are a class of important zinc-finger transcription factors responsible for regulating transcription and the chromatin state and responsive to various stresses. The family genes have been reported in many plants, but there is little information about PHD-finger genes in moso bamboo. In this study, 60 PHD-finger genes (PePHD1-60) were identified in moso bamboo and classified into 11 subfamilies (A-K) based on phylogenetic analysis. Gene structure and conserved motif analysis showed that these genes contained different numbers of introns but had similar motif organizations within each subfamily...
December 26, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29298836/at-mini-zinc-finger2-and-sl-inhibitor-of-meristem-activity-a-conserved-missing-link-in-the-regulation-of-floral-meristem-termination-in-arabidopsis-and-tomato
#12
Norbert Bollier, Adrien Sicard, Julie Leblond-Castaing, David Latrasse, Nathalie Gonzalez, Frédéric Gévaudant, Moussa Benhamed, Cécile Raynaud, Michael Lenhard, Christian Chevalier, Michel Hernould, Frédéric Delmas
In angiosperms, the gynoecium is the last structure to develop within the flower due to the determinate fate of floral meristem (FM) stem cells. The maintenance of stem cell activity before its arrest at the stage called FM termination affects the number of carpels that develop. The necessary inhibition at this stage of WUSCHEL (WUS), which is responsible for stem cell maintenance, involves a two-step mechanism. Direct repression mediated by the MADS-domain transcription factor AGAMOUS (AG), followed by indirect repression requiring the C2H2 zinc-finger protein KNUCKLES (KNU), allow for the complete termination of floral stem cell activity...
January 3, 2018: Plant Cell
https://www.readbyqxmd.com/read/29291153/functional-and-dna-protein-binding-studies-of-wrky-transcription-factors-and-their-expression-analysis-in-response-to-biotic-and-abiotic-stress-in-wheat-triticum-aestivum-l
#13
Lopamudra Satapathy, Dhananjay Kumar, Manish Kumar, Kunal Mukhopadhyay
WRKY, a plant-specific transcription factor family, plays vital roles in pathogen defense, abiotic stress, and phytohormone signalling. Little is known about the roles and function of WRKY transcription factors in response to rust diseases in wheat. In the present study, three TaWRKY genes encoding complete protein sequences were cloned. They belonged to class II and III WRKY based on the number of WRKY domains and the pattern of zinc finger structures. Twenty-two DNA-protein binding docking complexes predicted stable interactions of WRKY domain with W-box...
January 2018: 3 Biotech
https://www.readbyqxmd.com/read/29281646/energy-saving-method-for-technogenic-waste-processing
#14
Bayandy Dikhanbaev, Chandima Gomes, Aristan Bayandievich Dikhanbaev
Dumps of a mining-metallurgical complex of post-Soviet Republics have accumulated a huge amount of technogenic waste products. Out of them, Kazakhstan alone has preserved about 20 billion tons. In the field of technogenic waste treatment, there is still no technical solution that leads it to be a profitable process. Recent global trends prompted scientists to focus on developing energy-saving and a highly efficient melting unit that can significantly reduce specific fuel consumption. This paper reports, the development of a new technological method-smelt layer of inversion phase...
2017: PloS One
https://www.readbyqxmd.com/read/29277319/two-mulberry-phytochelatin-synthase-genes-confer-zinc-cadmium-tolerance-and-accumulation-in-transgenic-arabidopsis-and-tobacco
#15
Wei Fan, Qing Guo, ChangYing Liu, Xueqin Liu, Meng Zhang, Dingpei Long, Zhonghuai Xiang, Aichun Zhao
Phytochelatin synthase (PCS) is an enzyme involved in the synthesis of phytochelatins, cysteine-rich peptides which play a key role in heavy metal (HM) detoxification of plants. Mulberry (Morus L.), one of the most ecologically and economically important tree genera, has the potential to remediate HM-contaminated soils. However, genes involved in HM detoxification in Morus, such as the PCS genes, have not been identified and characterized. In this study, we identified two Morus notabilis PCS genes based on a genome-wide analysis of the Morus genome database...
December 22, 2017: Gene
https://www.readbyqxmd.com/read/29260303/bah1-an-e3-ligase-from-arabidopsis-thaliana-stabilizes-heat-shock-factor-%C3%AF-32-of-escherichia-coli-by-interacting-with-dnak-dnaj-chaperone-team
#16
Xibing Xu, Ke Liang, Yulong Niu, Yan Shen, Xuedong Wan, Haiyan Li, Yi Yang
In Escherichia coli, the DnaK/DnaJ chaperone can control the stability and activity of σ32, which is the key factor in heat shock response. Heterologous expression of eukaryotic molecular chaperones protects E. coli from heat stress. Here, we show that BAH1, an E3 ligase from plant that has a similar zinc finger domain to DnaJ, can perform block the effect of DnaK on σ32 in Escherichia coli. By constructing a chimeric DnaJ protein, with the J-domain of DnaJ fused to BAH1, we found BAH1 could partially compensate for the DnaJ' zinc finger domain in vivo, and that it was dependent on the zinc finger domain of BAH1...
December 20, 2017: Current Microbiology
https://www.readbyqxmd.com/read/29259968/drought-response-in-wheat-key-genes-and-regulatory-mechanisms-controlling-root-system-architecture-and-transpiration-efficiency
#17
REVIEW
Manoj Kulkarni, Raju Soolanayakanahally, Satoshi Ogawa, Yusaku Uga, Michael G Selvaraj, Sateesh Kagale
Abiotic stresses such as, drought, heat, salinity, and flooding threaten global food security. Crop genetic improvement with increased resilience to abiotic stresses is a critical component of crop breeding strategies. Wheat is an important cereal crop and a staple food source globally. Enhanced drought tolerance in wheat is critical for sustainable food production and global food security. Recent advances in drought tolerance research have uncovered many key genes and transcription regulators governing morpho-physiological traits...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29250721/annotation-and-characterization-of-cd-responsive-metal-transporter-genes-in-rapeseed-brassica-napus
#18
Xian Duo Zhang, Jin Guo Meng, Kai Xuan Zhao, Xi Chen, Zhi Min Yang
In higher plants, heavy metal transporters are responsible for metal uptake, translocation and homeostasis. These metals include essential metals such as zinc (Zn) or manganese (Mn) and non-essential metals like cadmium (Cd) or lead (Pb). Although a few heavy metal transporters have been well identified in model plants (e.g. Arabidopsis and rice), little is known about their functionality in rapeseed (Brassica napus). B. napus is an important oil crop ranking the third largest sources of vegetable oil over the world...
December 18, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29249024/investigations-of-microbial-degradation-of-polycyclic-aromatic-hydrocarbons-based-on-13c-labeled-phenanthrene-in-a-soil-co-contaminated-with-trace-elements-using-a-plant-assisted-approach
#19
Anna Wawra, Wolfgang Friesl-Hanl, Anna Jäger, Markus Puschenreiter, Gerhard Soja, Thomas Reichenauer, Andrea Watzinger
Co-contaminations of soils with organic and inorganic pollutants are a frequent environmental problem. Due to their toxicity and recalcitrance, the heterogeneous pollutants may persist in soil. The hypothesis of this study was that degradation of polycyclic aromatic hydrocarbons (PAHs) is enhanced if heavy metals in soil are immobilized and their bioavailability reduced. For metal immobilization and enhanced biodegradation, distinct mineral and organic soil amendments (iron oxides, gravel sludge, biochar) were deployed in an incubation batch experiment...
December 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29248681/characteristics-and-application-of-s1-p1-nucleases-in-biotechnology-and-medicine
#20
REVIEW
Tomáš Kovaľ, Jan Dohnálek
3'-nucleases/nucleotidases of the S1-P1 family (EC 3.1.30.1) are single-strand-specific or non-specific zinc-dependent phosphoesterases present in plants, fungi, protozoan parasites, and in some bacteria. They participate in a wide variety of biological processes and their current biotechnological applications rely on their single-strand preference, nucleotide non-specificity, a broad range of catalytic conditions and high stability. We summarize the present and potential utilization of these enzymes in biotechnology and medicine in the context of their biochemical and structure-function properties...
December 14, 2017: Biotechnology Advances
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