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https://www.readbyqxmd.com/read/28527975/the-reaumuria-trigyna-transcription-factor-rtwrky1-confers-tolerance-to-salt-stress-in-transgenic-arabidopsis
#1
Chao Du, Pingping Zhao, Huirong Zhang, Ningning Li, Linlin Zheng, Yingchun Wang
Reaumuria trigyna (R. trigyna) is an endangered small shrub endemic to the Eastern Alxa-Western Ordos area in Inner Mongolia, China. Based on R. trigyna transcriptome data, the Group I WRKY transcription factor gene RtWRKY1 was cloned from R. trigyna. The full-length RtWRKY1 gene was 2100bp, including a 1261-bp open reading frame (ORF) encoding 573 amino acids. RtWRKY1 was mainly expressed in the stem and was induced by salt, cold stress, and ABA treatment. Overexpression of RtWRKY1 in Arabidopsis significantly enhanced the chlorophyll content, root length, and fresh weight of the transgenic lines under salt stress...
May 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28527344/harnessing-plant-metabolic-diversity
#2
REVIEW
Charlie Owen, Nicola J Patron, Ancheng Huang, Anne Osbourn
Advances in DNA sequencing and synthesis technologies in the twenty-first century are now making it possible to build large-scale pipelines for engineering plant natural product pathways into heterologous production species using synthetic biology approaches. The ability to decode the chemical potential of plants by sequencing their transcriptomes and/or genomes and to then use this information as an instruction manual to make drugs and other high-value chemicals is opening up new routes to harness the vast chemical diversity of the Plant Kingdom...
May 17, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28527333/transcriptome-wide-analysis-of-jasmonate-treated-by-2-cells-reveals-new-transcriptional-regulators-associated-with-alkaloid-formation-in-tobacco
#3
Yuping Yang, Pengcheng Yan, Che Yi, Wenzheng Li, Yuhui Chai, Lingling Fei, Ping Gao, Heping Zhao, Yingdian Wang, Michael P Timko, Bingwu Wang, Shengcheng Han
Jasmonates (JAs) are well-known regulators of stress, defence, and secondary metabolism in plants, with JA perception triggering extensive transcriptional reprogramming, including both activation and/or repression of entire metabolic pathways. We performed RNA sequencing based transcriptomic profiling of tobacco BY-2 cells before and after treatment with methyl jasmonate (MeJA) to identify novel transcriptional regulators associated with alkaloid formation. A total of 107,140 unigenes were obtained through de novo assembly, and at least 33,213 transcripts (31%) encode proteins, in which 3419 transcription factors (TFs) were identified, representing 72 gene families, as well as 840 transcriptional regulators (TRs) distributed among 19 gene families...
May 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28526728/genetic-subtraction-profiling-identifies-candidate-mirnas-involved-in-rice-female-gametophyte-abortion
#4
Liyu Yang, Ya Wu, Wenliang Wang, Bigang Mao, Bingran Zhao, Jianbo Wang
Female gametophyte is an important participant in sexual reproduction of plants. The molecular mechanism of its development has received much attention in recent years. As important regulators of gene expression, miRNAs have been certified to play a significant role in many biological processes of plants including sexual reproduction. In this study, to investigate the potential regulatory effects of miRNAs on rice female gametophytes abortion, we used the high-throughput sequencing method to compare the miRNA transcriptome in ovules of a high frequency female-sterile line (fsv1) and a rice wild-type line (Gui 99) during ovule development...
May 19, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28525595/gut-transcriptome-analysis-shows-different-food-utilization-efficiency-by-the-grasshopper-oedaleous-asiaticus-orthoptera-acrididae
#5
Xunbing Huang, Mark Richard McNeill, Jingchuan Ma, Xinghu Qin, Xiongbing Tu, Guangchun Cao, Guangjun Wang, Xiangqun Nong, Zehua Zhang
Oedaleus asiaticus B. Bienko is a persistent pest occurring in north Asian grasslands. We found that O. asiaticus feeding on Stipa krylovii Roshev. had higher approximate digestibility (AD), efficiency of conversion of ingested food (ECI), and efficiency of conversion of digested food (ECD), compared with cohorts feeding on Leymus chinensis (Trin.) Tzvel, Artemisia frigida Willd., or Cleistogenes squarrosa (Trin.) Keng. Although this indicated high food utilization efficiency for S. krylovii, the physiological processes and molecular mechanisms underlying these biological observations are not well understood...
May 19, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28523731/wble2-transcription-factor-in-streptomyces-griseus-s4-7-plays-an-important-role-in-plant-protection
#6
Hyun Ji Cho, Young Sang Kwon, Da-Ran Kim, Gyeongjun Cho, Seong Won Hong, Dong-Won Bae, Youn-Sig Kwak
Streptomyces griseus S4-7 was originally isolated from the strawberry rhizosphere as a microbial agent responsible for Fusarium wilt suppressive soils. S. griseus S4-7 shows specific and pronounced antifungal activity against Fusarium oxysporum f. sp. fragariae. In the Streptomyces genus, the whi transcription factors are regulators of sporulation, cell differentiation, septation, and secondary metabolites production. wblE2 function as a regulator has emerged as a new group in whi transcription factors. In this study, we reveal the involvement of the wblE2 transcription factor in the plant-protection by S...
May 19, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28523007/transcriptomic-identification-of-drought-related-genes-and-ssr-markers-in-sudan-grass-based-on-rna-seq
#7
Yongqun Zhu, Xia Wang, Linkai Huang, Chaowen Lin, Xinquan Zhang, Wenzhi Xu, Jianhua Peng, Zhou Li, Haidong Yan, Fuxiang Luo, Xie Wang, Li Yao, Dandan Peng
Sudan grass (Sorghum sudanense) is an annual warm-season gramineous forage grass that is widely used as pasture, hay, and silage. However, drought stress severely impacts its yield, and there is limited information about the mechanisms of drought tolerance in Sudan grass. In this study, we used next-generation sequencing to identify differentially expressed genes (DEGs) in the Sudan grass variety Wulate No.1, and we developed simple sequence repeat (SSR) markers associated with drought stress. From 852,543,826 raw reads, nearly 816,854,366 clean reads were identified and used for analysis...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28521946/genomics-of-the-asian-rice-gall-midge-and-its-interactions-with-rice
#8
REVIEW
Deepak Kumar Sinha, Isha Atray, Ruchi Agarrwal, Jagadish Sanmallappa Bentur, Suresh Nair
Understanding virulence and manipulative strategies of gall formers will reveal new facets of plant defense and insect counter defense. Among the gall midges, the Asian rice gall midge (AGM) has emerged as a model for studies on plant-insect interactions. Data from several genomics, transcriptomics and metabolomics studies have revealed diverse strategies adopted by AGM to successfully invade the host while overcoming its defense. Adaptive skills of AGM transcend from its genomic and transcriptomic make-up...
February 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/28521238/transcriptomic-approach-for-assessment-of-the-impact-on-microalga-and-macrophyte-of-in-situ-exposure-in-river-sites-contaminated-by-chlor-alkali-plant-effluents
#9
Perrine Dranguet, Claudia Cosio, Séverine Le Faucheur, Rebecca Beauvais-Flück, Aline Freiburghaus, Isabelle A M Worms, Brice Petit, Natacha Civic, Mylène Docquier, Vera I Slaveykova
Water quality degradation is a worldwide problem, but risk evaluation of chronic pollution in-situ is still a challenge. The present study aimed to evaluate the potential of transcriptomic analyses in representative aquatic primary producers to assess the impact of environmental pollution in-situ: the microalga Chlamydomonas reinhardtii and the macrophyte Elodea nuttallii were exposed 2 h in the Babeni Reservoir of the Olt River impacted by chlor-alkali plant effluent release resulting in increased concentrations of Hg and NaCl in receiving water...
May 11, 2017: Water Research
https://www.readbyqxmd.com/read/28520864/from-chromatogram-to-analyte-to-metabolite-how-to-pick-horses-for-courses-from-the-massive-web-resources-for-mass-spectral-plant-metabolomics
#10
Leonardo Perez de Souza, Thomas Naake, Takayuki Tohge, Alisdair R Fernie
The grand challenge currently facing metabolomics is the expansion of the coverage of the metabolome from a minor percentage of the metabolic complement of the cell towards the level of coverage afforded by other post-genomic technologies such as transcriptomics and proteomics. In plants this problem is exacerbated by the sheer diversity of chemicals that constitute the metabolome with the number of metabolites in the plant kingdom generally being considered to be in excess of 200 000. In this review we focus on web-resources that can be exploited in order to improve analyte and ultimately metabolite identification and quantification...
May 17, 2017: GigaScience
https://www.readbyqxmd.com/read/28520800/transcriptome-profiling-revealed-novel-transcriptional-regulators-in-maize-responses-to-ostrinia-furnacalis-and-jasmonic-acid
#11
Hai Wang, Shengyan Li, Shouzhen Teng, Haisheng Liang, Hongjia Xin, Hongjiang Gao, Dafang Huang, Zhihong Lang
Chewing insects cause severe yield losses in crop production worldwide. Crop plants counteract chewing insects by transcriptionally promoting a repertoire of defense gene products that are either toxic to, or attractive to the natural enemies of, pest insects. However, the complexity of the transcriptional reprogramming in plant defense response against chewing insects is still not well understood. In this study, the genome-wide early responses in maize seedlings to Asian corn borer (ACB, Ostrinia furnacalis) and also to jasmonic acid(JA), the pivotal phytohormone controlling plant defense response against herbivory, were transcriptionally profiled by RNA-Seq...
2017: PloS One
https://www.readbyqxmd.com/read/28520766/transcriptomic-analysis-of-salt-stress-responsive-genes-in-rhazya-stricta
#12
Nahid H Hajrah, Abdullah Y Obaid, Ahmed Atef, Ahmed M Ramadan, Dhivya Arasappan, Charllotte A Nelson, Sherif Edris, Mohammed Z Mutwakil, Alawia Alhebshi, Nour O Gadalla, Rania M Makki, Madgy A Al-Kordy, Fotouh M El-Domyati, Jamal S M Sabir, Mohammad A Khiyami, Neil Hall, Ahmed Bahieldin, Robert K Jansen
Rhazya stricta is an evergreen shrub that is widely distributed across Western and South Asia, and like many other members of the Apocynaceae produces monoterpene indole alkaloids that have anti-cancer properties. This species is adapted to very harsh desert conditions making it an excellent system for studying tolerance to high temperatures and salinity. RNA-Seq analysis was performed on R. stricta exposed to severe salt stress (500 mM NaCl) across four time intervals (0, 2, 12 and 24 h) to examine mechanisms of salt tolerance...
2017: PloS One
https://www.readbyqxmd.com/read/28519717/phytophthora-cinnamomi
#13
Adrienne R Hardham, Leila M Blackman
Phytophthora cinnamomi is one of the most devastating plant pathogens in the world. It infects close to 5,000 species of plants, including many of importance in agriculture, forestry and horticulture. Inadvertent introduction of P. cinnamomi into natural ecosystems, including a number of recognised Global Biodiversity Hotspots, has disastrous consequences for the environment and biodiversity of flora and fauna. The genus Phytophthora belongs to the Class Oomycetes, a group of fungus-like organisms that initiate plant disease through the production of motile zoospores...
May 18, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28515733/stable-internal-reference-genes-for-normalizing-real-time-quantitative-pcr-in-baphicacanthus-cusia-under-hormonal-stimuli-and-uv-irradiation-and-in-different-plant-organs
#14
Yuxiang Huang, Hexin Tan, Jian Yu, Yue Chen, Zhiying Guo, Guoquan Wang, Qinglei Zhang, Junfeng Chen, Lei Zhang, Yong Diao
Baphicacanthus cusia (Nees) Bremek, the plant source for many kinds of drugs in traditional Chinese medicine, is widely distributed in South China, especially in Fujian. Recent studies about B. cusia mainly focus on its chemical composition and pharmacological effects, but further analysis of the plant's gene functions and expression is required to better understand the synthesis of its effective compounds. Real-time quantitative polymerase chain reaction (RT-qPCR) is a powerful method for gene expression analysis...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28515731/ectopic-expression-of-cdf3-genes-in-tomato-enhances-biomass-production-and-yield-under-salinity-stress-conditions
#15
Begoña Renau-Morata, Rosa V Molina, Laura Carrillo, Jaime Cebolla-Cornejo, Manuel Sánchez-Perales, Stephan Pollmann, José Domínguez-Figueroa, Alba R Corrales, Jaume Flexas, Jesús Vicente-Carbajosa, Joaquín Medina, Sergio G Nebauer
Cycling Dof Factor (CDF) transcription factors (TFs) are involved in multiple processes related to plant growth and development. A member of this family, CDF3, has recently been linked in Arabidopsis to the regulation of primary metabolism and abiotic stress responses, but its role in crop production under stress is still unknown. In this study, we characterized tomato plants overexpressing the CDF3 genes from Arabidopsis and tomato and analyzed their effects on growth and yield under salinity, additionally gaining deeper insights into the molecular function of these TFs...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28515146/transcriptome-of-wheat-inflorescence-development-from-spikelet-initiation-to-floral-patterning
#16
Nan Feng, Gaoyuan Song, Jiantao Guan, Kai Chen, Meiling Jia, Dehua Huang, Jiajie Wu, Lichao Zhang, Xiuying Kong, Shuaifeng Geng, Jun Liu, Aili Li, Long Mao
Early reproductive development in cereals is crucial for final grain number per spike, and hence the yield potential of the crop. To date, however, no systematic analyses of gene expression profiles during this important process have been conducted for common wheat (Triticum aestivum). Here, we studied the transcriptome profiles at four stages of early wheat reproductive development, from spikelet initiation to floral organ differentiation. K-means clustering and stage-specific transcript identification detected dynamically expressed homoeologs of important transcription regulators in spikelet and floral meristems that may be involved in spikelet initiation, floret meristem specification, and floral organ patterning, as inferred from their homologs in model plants...
May 17, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28512464/insights-into-the-mechanism-of-proliferation-on-the-special-microbes-mediated-by-phenolic-acids-in-the-radix-pseudostellariae-rhizosphere-under-continuous-monoculture-regimes
#17
Hongmiao Wu, Junjian Xu, Juanying Wang, Xianjin Qin, Linkun Wu, Zhicheng Li, Sheng Lin, Weiwei Lin, Quan Zhu, Muhammad U Khan, Wenxiong Lin
As potent allelochemicals, phenolic acids are believed to be associated with replanting disease and cause microflora shift and structural disorder in the rhizosphere soil of continuously monocultured Radix pseudostellariae. The transcriptome sequencing was used to reveal the mechanisms underlying the differential response of pathogenic bacterium Kosakonia sacchari and beneficial bacterium Bacillus pumilus on their interactions with phenolic acids, the main allelochemicals in root exudates of R. pseudostellariae in the monoculture system...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28512462/de-novo-transcriptome-profiling-of-flowers-flower-pedicels-and-pods-of-lupinus-luteus-yellow-lupine-reveals-complex-expression-changes-during-organ-abscission
#18
Paulina Glazinska, Waldemar Wojciechowski, Milena Kulasek, Wojciech Glinkowski, Katarzyna Marciniak, Natalia Klajn, Jacek Kesy, Jan Kopcewicz
Yellow lupine (Lupinus luteus L., Taper c.), a member of the legume family (Fabaceae L.), has an enormous practical importance. Its excessive flower and pod abscission represents an economic drawback, as proper flower and seed formation and development is crucial for the plant's productivity. Generative organ detachment takes place at the basis of the pedicels, within a specialized group of cells collectively known as the abscission zone (AZ). During plant growth these cells become competent to respond to specific signals that trigger separation and lead to the abolition of cell wall adhesion...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28512373/assessment-of-globodera-pallida-rna-extracted-from-solanum-roots
#19
N Carol Casavant, Joseph C Kuhl, Fangming Xiao, Allan B Caplan, Louise-Marie Dandurand
The introduction of high-throughput sequencing technologies has made transcriptome analyses of plant-pathogen interactions almost routine. Nevertheless, it is still challenging to obtain RNA from populations made up of two species. An RNA extraction method that worked well on free-living Caenorhabditis elegans failed when applied to isolated Globodera pallida J2 larva. Furthermore, alternative protocols that extracted RNA from free-living J2 larva produced less satisfactory results once the animals entered their hosts' roots...
March 2017: Journal of Nematology
https://www.readbyqxmd.com/read/28512179/cooperative-regulatory-functions-of-mir858-and-myb83-during-cyst-nematode-parasitism
#20
Sarbottam Piya, Christina Kihm, J Hollis Rice, Thomas J Baum, Tarek Hewezi
microRNAs (miRNAs) recently have been established as key regulators of transcriptome reprogramming that defines cell function and identity. Nevertheless, the molecular functions of the greatest number of miRNA genes remain to be determined. Here, we report cooperative regulatory functions of miR858 and its MYB83 transcription factor target gene in transcriptome reprogramming during Heterodera cyst nematode parasitism of Arabidopsis. Gene expression analyses and promoter-GUS fusion assays documented a role of miR858 in post-transcriptional regulation of MYB83 in the Heterodera schachtii-induced feeding sites, the syncytia...
May 16, 2017: Plant Physiology
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