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https://www.readbyqxmd.com/read/28640975/nac-transcription-factor-jungbrunnen1-enhances-drought-tolerance-in-tomato
#1
Venkatesh P Thirumalaikumar, Vikas Devkar, Nikolay Mehterov, Shawkat Ali, Rengin Ozgur, Ismail Turkan, Bernd Mueller-Roeber, Salma Balazadeh
Water deficit (drought stress) massively restricts plant growth and the yield of crops; reducing the deleterious effects of drought is therefore of high agricultural relevance. Drought triggers diverse cellular processes including the inhibition of photosynthesis, the accumulation of cell-damaging reactive oxygen species, and gene expression reprogramming, besides others. Transcription factors (TF) are central regulators of transcriptional reprogramming and expression of many TF genes is affected by drought, including members of the NAC family...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28638397/generation-annotation-and-analysis-of-a-large-scale-expressed-sequence-tag-library-from-arabidopsis-pumila-to-explore-salt-responsive-genes
#2
Xianzhong Huang, Lifei Yang, Yuhuan Jin, Jun Lin, Fang Liu
Arabidopsis pumila is an ephemeral plant, and a close relative of the model plant Arabidopsis thaliana, but it possesses higher photosynthetic efficiency, higher propagation rate, and higher salinity tolerance compared to those A. thaliana, thus providing a candidate plant system for gene mining for environmental adaption and salt tolerance. However, A. pumila is an under-explored resource for understanding the genetic mechanisms underlying abiotic stress adaptation. To improve our understanding of the molecular and genetic mechanisms of salt stress adaptation, more than 19,900 clones randomly selected from a cDNA library constructed previously from leaf tissue exposed to high-salinity shock were sequenced...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28628905/a-ros-mediated-mitochondrial-pathway-and-nrf2-pathway-activation-are-involved-in-bde-47-induced-apoptosis-in-neuro-2a-cells
#3
Hongmei Chen, Xuexi Tang, Bin Zhou, Zhongyuan Zhou, Ningning Xu, You Wang
Our previous study showed that 2,2'-,4,4'-tetrabromodiphenyl ether (BDE-47) is cytotoxic and induces apoptosis in Neuro-2a cells. In the present study, we aimed to investigate whether nuclear factor (erythroid-derived 2)-like 2 (Nrf2), an antioxidant transcriptional regulator of oxidative stress and apoptosis, is involved in this process. The results of toxicological experiments showed that BDE-47 decreased the cellular mitochondrial membrane potential (MMP) and increased cytochrome c release to the cytoplasm, followed by an increase in intracellular caspase-9 and caspase-3 activity, suggesting that a mitochondrial pathway was involved in the apoptotic process...
June 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/28626466/identification-characterization-and-functional-validation-of-drought-responsive-micrornas-in-subtropical-maize-inbreds
#4
Jayaraman Aravind, Sharma Rinku, Banduni Pooja, Mittal Shikha, Shiriga Kaliyugam, Mallana Gowdra Mallikarjuna, Arun Kumar, Atmakuri Ramakrishna Rao, Thirunavukkarasu Nepolean
MicroRNA-mediated gene regulation plays a crucial role in controlling drought tolerance. In the present investigation, 13 drought-associated miRNA families consisting of 65 members and regulating 42 unique target mRNAs were identified from drought-associated microarray expression data in maize and were subjected to structural and functional characterization. The largest number of members (14) was found in the zma-miR166 and zma-miR395 families, with several targets. However, zma-miR160, zma-miR390, zma-miR393, and zma-miR2275 each showed a single target...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28600879/ifn-gamma-priming-of-adipose-derived-stromal-cells-at-physiological-hypoxia-and-under-acute-hypoxic-stress
#5
E R Andreeva, O O Udartseva, O V Zhidkova, S V Buravkov, M I Ezdakova, L B Buravkova
Multipotent mesenchymal stromal cells (MSCs) are considered cue regulators of tissue remodelling. Their activity is strongly governed by local milieu, where O2 level is most important. The elevation of inflammatory mediators and acute O2 lowering may additionally modulate MSC activity. In present paper the priming effects of IFN-gamma on adipose tissue-derived MSCs (ASCs) at tissue-related O2 level (5%) and acute hypoxic stress (0.1% O2 ) were assessed as alterations of ASCs' CFU-F, proliferation, migration, osteo-commitment...
June 10, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28596552/genome-wide-survey-of-switchgrass-nacs-family-provides-new-insights-into-motif-and-structure-arrangements-and-reveals-stress-related-and-tissue-specific-nacs
#6
Haidong Yan, Ailing Zhang, Yuntian Ye, Bin Xu, Jing Chen, Xiaoyan He, Chengran Wang, Sifan Zhou, Xinquan Zhang, Yan Peng, Xiao Ma, Yanhong Yan, Linkai Huang
NAC proteins comprise of a plant-specific transcription factor (TF) family and play important roles in plant development and stress responses. Switchgrass (Panicum virgatum) is the prime candidate and model bioenergy grass across the world. Excavating agronomically valuable genes is important for switchgrass molecular breeding. In this study, a total of 251 switchgrass NAC (PvNACs) family genes clustered into 19 subgroups were analyzed, and those potentially involved in stress response or tissue-specific expression patterns were pinpointed...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28594931/de-novo-transcriptome-assembly-and-quantification-reveal-differentially-expressed-genes-between-soft-seed-and-hard-seed-pomegranate-punica-granatum-l
#7
Hui Xue, Shangyin Cao, Haoxian Li, Jie Zhang, Juan Niu, Lina Chen, Fuhong Zhang, Diguang Zhao
Pomegranate (Punica granatum L.) belongs to Punicaceae, and is valued for its social, ecological, economic, and aesthetic values, as well as more recently for its health benefits. The 'Tunisia' variety has softer seeds and big arils that are easily swallowed. It is a widely popular fruit; however, the molecular mechanisms of the formation of hard and soft seeds is not yet clear. We conducted a de novo assembly of the seed transcriptome in P. granatum L. and revealed differential gene expression between the soft-seed and hard-seed pomegranate varieties...
2017: PloS One
https://www.readbyqxmd.com/read/28560642/identification-and-characterization-of-micrornas-and-their-targets-in-high-altitude-stress-adaptive-plant-maca-lepidium-meyenii-walp
#8
Sujay Paul
MicroRNAs (miRNAs) are endogenous, short (~21-nucleotide), non-coding RNA molecules that play pivotal roles in plant growth, development, and stress response signaling. In this study using recently published draft genome sequence of a high-altitude plant maca (Lepidium meyenii Walp) and applying genome-wide computational-based approaches, a total of 62 potentially conserved miRNAs belonging to 28 families were identified and four (lme-miR160a, lme-miR164c, lme-miR 166a, and lme-miR 319a) of them further validated by RT-PCR...
June 2017: 3 Biotech
https://www.readbyqxmd.com/read/28559906/drawing-links-from-transcriptome-to-metabolites-the-evolution-of-aroma-in-the-ripening-berry-of-moscato-bianco-vitis-vinifera-l
#9
Laura Costantini, Christian D Kappel, Massimiliano Trenti, Juri Battilana, Francesco Emanuelli, Maddalena Sordo, Marco Moretto, Céline Camps, Roberto Larcher, Serge Delrot, Maria S Grando
Monoterpenes confer typical floral notes to "Muscat" grapevine varieties and, to a lesser extent, to other aromatic non-Muscat varieties. Previous studies have led to the identification and functional characterization of some enzymes and genes in this pathway. However, the underlying genetic map is still far from being complete. For example, the specific steps of monoterpene metabolism and its regulation are largely unknown. With the aim of identifying new candidates for the missing links, we applied an integrative functional genomics approach based on the targeted metabolic and genome-wide transcript profiling of Moscato Bianco ripening berries...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28555148/genome-wide-identification-of-orthologous-zip-genes-associated-with-zinc-and-iron-translocation-in-setaria-italica
#10
Ganesh Alagarasan, Mahima Dubey, Kumar S Aswathy, Girish Chandel
Genes in the ZIP family encode transcripts to store and transport bivalent metal micronutrient, particularly iron (Fe) and or zinc (Zn). These transcripts are important for a variety of functions involved in the developmental and physiological processes in many plant species, including most, if not all, Poaceae plant species and the model species Arabidopsis. Here, we present the report of a genome wide investigation of orthologous ZIP genes in Setaria italica and the identification of 7 single copy genes. RT-PCR shows 4 of them could be used to increase the bio-availability of zinc and iron content in grains...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28555077/the-dendritic-spine-morphogenic-effects-of-repeated-cocaine-use-occur-through-the-regulation-of-serum-response-factor-signaling
#11
M E Cahill, D M Walker, A M Gancarz, Z J Wang, C K Lardner, R C Bagot, R L Neve, D M Dietz, E J Nestler
The nucleus accumbens (NAc) is a primary brain reward region composed predominantly of medium spiny neurons (MSNs). In response to early withdrawal from repeated cocaine administration, de novo dendritic spine formation occurs in NAc MSNs. Much evidence indicates that this new spine formation facilitates the rewarding properties of cocaine. Early withdrawal from repeated cocaine also produces dramatic alterations in the transcriptome of NAc MSNs, but how such alterations influence cocaine's effects on dendritic spine formation remain unclear...
May 30, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28545464/c10orf10-depp-mediated-ros-accumulation-is-a-critical-modulator-of-foxo3-induced-autophagy
#12
S Salcher, M Hermann, U Kiechl-Kohlendorfer, M J Ausserlechner, P Obexer
BACKGROUND: Neuroblastoma is the most common solid tumor in childhood and develops from undifferentiated progenitor cells of the sympathetic nervous system. In neuronal tumor cells DNA-damaging chemotherapeutic agents activate the transcription factor FOXO3 which regulates the formation of reactive oxygen species (ROS) and cell death as well as a longevity program associated with therapy resistance. We demonstrated before that C10ORF10/DEPP, a transcriptional target of FOXO3, localizes to peroxisomes and mitochondria and impairs cellular ROS detoxification...
May 25, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28531348/plant-derived-transcription-factors-for-orthologous-regulation-of-gene-expression-in-the-yeast-saccharomyces-cerevisiae
#13
Gita Naseri, Salma Balazadeh, Fabian Machens, Iman Kamranfar, Katrin Messerschmidt, Bernd Mueller-Roeber
Control of gene expression by transcription factors (TFs) is central in many synthetic biology projects for which a tailored expression of one or multiple genes is often needed. As TFs from evolutionary distant organisms are unlikely to affect gene expression in a host of choice, they represent excellent candidates for establishing orthogonal control systems. To establish orthogonal regulators for use in yeast (Saccharomyces cerevisiae), we chose TFs from the plant Arabidopsis thaliana. We established a library of 106 different combinations of chromosomally integrated TFs, activation domains (yeast GAL4 AD, herpes simplex virus VP64, and plant EDLL) and synthetic promoters harboring cognate cis-regulatory motifs driving a yEGFP reporter...
June 9, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28503178/transcriptomic-response-of-chinese-yew-taxus-chinensis-to-cold-stress
#14
Delong Meng, Xianghua Yu, Liyuan Ma, Jin Hu, Yili Liang, Xueduan Liu, Huaqun Yin, Hongwei Liu, Xiaojia He, Diqiang Li
Taxus chinensis is a rare and endangered shrub, highly sensitive to temperature changes and widely known for its potential in cancer treatment. How gene expression of T. chinensis responds to low temperature is still unknown. To investigate cold response of the genus Taxus, we obtained the transcriptome profiles of T. chinensis grown under normal and low temperature (cold stress, 0°C) conditions using Illumina Miseq sequencing. A transcriptome including 83,963 transcripts and 62,654 genes were assembled from 4...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28500268/a-rice-nac-transcription-factor-promotes-leaf-senescence-via-aba-biosynthesis
#15
Chanjuan Mao, Songchong Lu, Bo Lv, Bin Zhang, Jiabin Shen, Jianmei He, Liqiong Luo, Dandan Xi, Xu Chen, Feng Ming
It has been well known that ABA induced leaf senescence and premature leaf senescence negatively affects the yield of rice. However, the molecular mechanism underlying this relationship, especially the upstream transcriptional network that modulates ABA level during leaf senescence, remains largely unknown. Here, we demonstrate a rice NAC transcription factor, OsNAC2, participated in ABA-induced leaf senescence. Overexpression of OsNAC2 dramatically accelerated leaf senescence, whereas its knockdown lines showed a delay in leaf senescence...
May 12, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28499072/sequencing-of-bulks-of-segregants-allows-dissection-of-genetic-control-of-amylose-content-in-rice
#16
Peterson Wambugu, Marie-Noelle Ndjiondjop, Agnelo Furtado, Robert Henry
Amylose content (AC) is a key quality trait in rice. A cross between Oryza glaberrima (African rice) and Oryza sativa (Asian rice) segregating for AC was analyzed by sequencing bulks of individuals with high and low AC. SNP associated with the granule bound starch synthase (GBSS1) locus on chromosome 6 were polymorphic between the bulks. In particular a G/A SNP that would result in an Asp to Asn mutation was identified. This amino acid substitution may be responsible for differences in GBSS activity as it is adjacent to a disulphide linkage conserved in all grass GBSS proteins...
May 12, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28497199/arachidonic-acid-induces-are-nrf2-dependent-heme-oxygenase-1-transcription-in-rat-brain-astrocytes
#17
Chih-Chung Lin, Chien-Chung Yang, Yu-Wen Chen, Li-Der Hsiao, Chuen-Mao Yang
Arachidonic acid (AA) is a major product of phospholipid hydrolysis catalyzed by phospholipase A2 during neurodegenerative diseases. AA exerts as a second messenger to regulate various signaling components which may be involved in different pathophysiological processes. Astrocytes are the main types of CNS resident cells which maintain and support the physiological function of brain. AA has been shown to induce ROS generation through activation of NADPH oxidases (Noxs) which may play a key role in the expression of heme oxygenase-1 (HO-1)...
May 11, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28493311/ethqv6-3-is-involved-in-melon-climacteric-fruit-ripening-and-is-encoded-by-a-nac-domain-transcription-factor
#18
Pablo Ríos, Jason Argyris, Juan Vegas, Carmen Leida, Merav Kenigswald, Galil Tzuri, Christelle Troadec, Abdelhafid Bendahmane, Nurit Katzir, Belén Picó, Antonio J Monforte, Jordi Garcia-Mas
Fruit ripening is divided into climacteric and non-climacteric types depending on the presence or absence of a transient rise in respiration rate and the production of autocatalytic ethylene. Melon is ideal for the study of fruit ripening, as both climacteric and non-climacteric varieties exist. Two introgressions of the non-climacteric accession PI 161375, encompassed in the QTLs ETHQB3.5 and ETHQV6.3, into the non-climacteric "Piel de Sapo" background are able to induce climacteric ripening independently...
May 10, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28491072/thnac13-a-nac-transcription-factor-from-tamarix-hispida-confers-salt-and-osmotic-stress-tolerance-to-transgenic-tamarix-and-arabidopsis
#19
Liuqiang Wang, Zhen Li, Mengzhu Lu, Yucheng Wang
NAC (NAM, ATAF1/2, and CUC2) proteins play critical roles in many plant biological processes and environmental stress. However, NAC proteins from Tamarix hispida have not been functionally characterized. Here, we studied a NAC gene from T. hispida, ThNAC13, in response to salt and osmotic stresses. ThNAC13 is a nuclear protein with a C-terminal transactivation domain. ThNAC13 can bind to NAC recognized sites and calmodulin-binding NAC (CBNAC) binding element. Overexpression of ThNAC13 in Arabidopsis improved seed germination rate and increased root growth and fresh weight gain under salt or osmotic stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28487710/transcriptome-analysis-of-cell-wall-and-nac-domain-transcription-factor-genes-during-elaeis-guineensis-fruit-ripening-evidence-for-widespread-conservation-within-monocot-and-eudicot-lineages
#20
Timothy J Tranbarger, Kim Fooyontphanich, Peerapat Roongsattham, Maxime Pizot, Myriam Collin, Chatchawan Jantasuriyarat, Potjamarn Suraninpong, Somvong Tragoonrung, Stéphane Dussert, Jean-Luc Verdeil, Fabienne Morcillo
The oil palm (Elaeis guineensis), a monocotyledonous species in the family Arecaceae, has an extraordinarily oil rich fleshy mesocarp, and presents an original model to examine the ripening processes and regulation in this particular monocot fruit. Histochemical analysis and cell parameter measurements revealed cell wall and middle lamella expansion and degradation during ripening and in response to ethylene. Cell wall related transcript profiles suggest a transition from synthesis to degradation is under transcriptional control during ripening, in particular a switch from cellulose, hemicellulose, and pectin synthesis to hydrolysis and degradation...
2017: Frontiers in Plant Science
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