The Plant Journal

Cover image for Vol. 88 Issue 6

December 2016

Volume 88, Issue 6

Pages 905–1081

  1. Issue Information

    1. Top of page
    2. Issue Information
    3. FEATURED ARTICLE
    4. ORIGINAL ARTICLES
    5. RESOURCE
    6. TECHNICAL ADVANCE
    1. Table of Contents (page 905)

      Version of Record online: 30 DEC 2016 | DOI: 10.1111/tpj.12991

  2. FEATURED ARTICLE

    1. Top of page
    2. Issue Information
    3. FEATURED ARTICLE
    4. ORIGINAL ARTICLES
    5. RESOURCE
    6. TECHNICAL ADVANCE
    1. You have full text access to this OnlineOpen article
      Functional characterization of Arabidopsis phototropin 1 in the hypocotyl apex (pages 907–920)

      Stuart Sullivan, Atsushi Takemiya, Eros Kharshiing, Catherine Cloix, Ken-ichiro Shimazaki and John M. Christie

      Version of Record online: 14 OCT 2016 | DOI: 10.1111/tpj.13313

      Significance Statement

      Phototropism in Arabidopsis is mediated by the blue light receptor phototropin 1 (phot1), a plasma membrane-associated kinase. Here we examined which tissues are important for establishing phototropism and other phot1-mediated processes. Using targeted expression analysis of PHOT1, we excluded the hypocotyl apex as the site for light perception and showed that de-phosphorylation of the phot1-interacting protein NPH3 is tissue autonomous and occurs more prominently in the basal hypocotyl.

  3. ORIGINAL ARTICLES

    1. Top of page
    2. Issue Information
    3. FEATURED ARTICLE
    4. ORIGINAL ARTICLES
    5. RESOURCE
    6. TECHNICAL ADVANCE
    1. GhJAZ2 negatively regulates cotton fiber initiation by interacting with the R2R3-MYB transcription factor GhMYB25-like (pages 921–935)

      Haiyan Hu, Xin He, Lili Tu, Longfu Zhu, Sitao Zhu, Zonghe Ge and Xianlong Zhang

      Version of Record online: 25 OCT 2016 | DOI: 10.1111/tpj.13273

      Significance Statement

      The plant hormone Jasmonic Acid was known to be involved in fiber initiation and elongation, but the molecular details were not fully elucidated. Here we show that a jasmonate ZIM-domain (JAZ) protein inhibits lint and fuzz fiber initiation by repressing the transcriptional activation of MYB-like and bHLH transcription factors and other genes in the JA signaling pathway.

    2. The transcription factors MS188 and AMS form a complex to activate the expression of CYP703A2 for sporopollenin biosynthesis in Arabidopsis thaliana (pages 936–946)

      Shuang-Xi Xiong, Jie-Yang Lu, Yue Lou, Xiao-Dong Teng, Jing-Nan Gu, Cheng Zhang, Qiang-Sheng Shi, Zhong-Nan Yang and Jun Zhu

      Version of Record online: 17 SEP 2016 | DOI: 10.1111/tpj.13284

      Significance Statement

      Sporopollenin in the pollen wall is produced by the tapetum, but how genes encoding the required biosynthetic enzymes are regulated is unclear. Here we show that two transcription factors, MS188 and AMS, positively regulate the gene encoding CYP703A2, a cytochrome P450 required for sporopollenin biosynthesis.

    3. Jasmonate-mediated stomatal closure under elevated CO2 revealed by time-resolved metabolomics (pages 947–962)

      Sisi Geng, Biswapriya B. Misra, Evaldo de Armas, David V. Huhman, Hans T. Alborn, Lloyd W. Sumner and Sixue Chen

      Version of Record online: 5 OCT 2016 | DOI: 10.1111/tpj.13296

      Significance Statement

      Carotenoid biosynthesis in plants includes a series of desaturation/isomerisation reactions, catalysed by four independent enzymes; in bacteria these reactions are catalysed by one enzyme, the crtI like phytoene desaturase. Expressing crtI in plants confers resistance to bleaching herbicides and enhances provitamin A content, i.e. in Golden Rice. Here we introduced crtI into tomato mutants defective in two different steps in the carotenoid biosynthetic pathway to determine how the endogenous carotenoid pathway reacts to alterations in desaturation. Collectively our data provide insights into the regulatory mechanisms operating within the pathway and how multi-level metabolite changes can occur.

    4. Interference with ethylene perception at receptor level sheds light on auxin and transcriptional circuits associated with the climacteric ripening of apple fruit (Malus x domestica Borkh.) (pages 963–975)

      Alice Tadiello, Sara Longhi, Marco Moretto, Alberto Ferrarini, Paola Tononi, Brian Farneti, Nicola Busatto, Urska Vrhovsek, Alessandra dal Molin, Carla Avanzato, Franco Biasioli, Luca Cappellin, Matthias Scholz, Riccardo Velasco, Livio Trainotti, Massimo Delledonne and Fabrizio Costa

      Version of Record online: 5 OCT 2016 | DOI: 10.1111/tpj.13306

      Significance Statement

      Apple fruit ripening is largely mediated by ethylene. Interference at the receptor level by an antagonist modifies both the transcriptional and metabolic patterns. Our correlation network analysis showed specific interactions between particular transcripts and fruit texture, aromatic VOCs and polyphenolic compounds. Gene de-repression and regulatory activations were linked to regulatory circuits that involved auxin, ethylene and transcription factors.

    5. Highly localized and persistent induction of Bx1-dependent herbivore resistance factors in maize (pages 976–991)

      Daniel Maag, Angela Köhler, Christelle A.M. Robert, Monika Frey, Jean-Luc Wolfender, Ted C.J. Turlings, Gaétan Glauser and Matthias Erb

      Version of Record online: 18 OCT 2016 | DOI: 10.1111/tpj.13308

      Significance Statement

      Plants respond to herbivore attack by mobilising specific chemical defences. In cereals, for example, induction of 1,4-benzoxazin-3-ones (BXs) has been hypothesised to be such a defensive response. Here, by profiling and manipulating the spatiotemporal induction of BXs, we show that BX induction is highly localised and long lasting and provides local protection against caterpillars.

    6. Rapid proliferation and nucleolar organizer targeting centromeric retrotransposons in cotton (pages 992–1005)

      Jinlei Han, Rick E. Masonbrink, Wenbo Shan, Fengqin Song, Jisen Zhang, Weichang Yu, Kunbo Wang, Yufeng Wu, Haibao Tang, Jonathan F. Wendel and Kai Wang

      Version of Record online: 1 NOV 2016 | DOI: 10.1111/tpj.13309

      Significance Statement

      Centromeric chromatin is composed of highly repetitive centromeric retrotransposons and satellite repeats that are highly variable even among closely related species, thus the evolutionary mechanisms that underlie the rapid evolution of centromeric repeats remain unknown. Here, we analyzed a diploid progenitor of tetraploid cotton species to elucidate the enrichment dynamics and targeting-preference alterations of centromeric retrotransposons; our results suggest that repeats can proliferate and spread between genomes after polyploidization.

    7. The Arabidopsis polyamine transporter LHR1/PUT3 modulates heat responsive gene expression by enhancing mRNA stability (pages 1006–1021)

      Yun Shen, Qingxia Ruan, Haoxi Chai, Yongze Yuan, Wannian Yang, Junping Chen, Zhanguo Xin and Huazhong Shi

      Version of Record online: 18 OCT 2016 | DOI: 10.1111/tpj.13310

      Significance Statement

      Regulating stress-responsive genes is critical for adaptation to adverse growth conditions Here we show that a polyamine influx transporter contributes to the plant heat stress response, as polyamines stabilize heat stress-inducible mRNAs.

    8. Arabidopsis phosphatidylglycerophosphate phosphatase 1 involved in phosphatidylglycerol biosynthesis and photosynthetic function (pages 1022–1037)

      Ying-Chen Lin, Koichi Kobayashi, Chun-Hsien Hung, Hajime Wada and Yuki Nakamura

      Version of Record online: 1 NOV 2016 | DOI: 10.1111/tpj.13311

      Significance Statement

      Phosphatidylglycerol (PG) is an indispensable lipid constituent of photosynthetic membranes. Here we identified the previously unknown phosphatidylglycerophosphate phosphatase that is required for the last step in PG biosynthesis.

    9. Rolling-circle amplification of centromeric Helitrons in plant genomes (pages 1038–1045)

      Wenwei Xiong, Hugo K. Dooner and Chunguang Du

      Version of Record online: 25 OCT 2016 | DOI: 10.1111/tpj.13314

      Significance Statement

      Helitron transposons can capture gene fragments and move them around the genome and thus have played an important role in shaping eukaryotic genomes, but their mode of transposition was unclear. Here we used an automated computational tool that enabled the discovery of a large cache of previously overlooked Helitrons in many genomes. We propose a rolling-circle replication model that accounts for the different Helitron distributions found in current plant genomes. As many tandem array Helitrons locate preferentially to centromeres, we suggest that they might have contributed to the growth of plant centromeres.

    10. You have full text access to this OnlineOpen article
      Tricin-lignins: occurrence and quantitation of tricin in relation to phylogeny (pages 1046–1057)

      Wu Lan, Jorge Rencoret, Fachuang Lu, Steven D. Karlen, Bronwen G. Smith, Philip J. Harris, José Carlos del Río and John Ralph

      Version of Record online: 3 NOV 2016 | DOI: 10.1111/tpj.13315

      Significance Statement

      Tricin, a flavone with human health benefits, is covalently linked to lignin in monocots. Here we developed a chemical degradative method to quantify lignin-integrated tricin. If methods to economically cleave tricin from lignin are developed, waste lignin streams from biomass processing could be used as an alternative source of tricin.

  4. RESOURCE

    1. Top of page
    2. Issue Information
    3. FEATURED ARTICLE
    4. ORIGINAL ARTICLES
    5. RESOURCE
    6. TECHNICAL ADVANCE
    1. A high resolution map of the Arabidopsis thaliana developmental transcriptome based on RNA-seq profiling (pages 1058–1070)

      Anna V. Klepikova, Artem S. Kasianov, Evgeny S. Gerasimov, Maria D. Logacheva and Aleksey A. Penin

      Version of Record online: 19 NOV 2016 | DOI: 10.1111/tpj.13312

      Significance Statement

      The development and update of genetic and genomic resources, involving new methods of data acquisition and analysis, is necessary even for such long established model organisms such as Arabidopsis thaliana. We present a transcriptome map of A. thaliana created using high-throughput RNA sequencing. It covers 79 organs and developmental stages; the analysis allowed the determination of global characteristics of the A. thaliana transcriptome and to add splice junctions and predicted genes to our current knowledge of the A. thaliana genome.

  5. TECHNICAL ADVANCE

    1. Top of page
    2. Issue Information
    3. FEATURED ARTICLE
    4. ORIGINAL ARTICLES
    5. RESOURCE
    6. TECHNICAL ADVANCE
    1. Genome editing of model oleaginous microalgae Nannochloropsis spp. by CRISPR/Cas9 (pages 1071–1081)

      Qintao Wang, Yandu Lu, Yi Xin, Li Wei, Shi Huang and Jian Xu

      Version of Record online: 18 OCT 2016 | DOI: 10.1111/tpj.13307

      Significance Statement

      Microalgae are promising feedstocks for biofuels, but additional genomic tools are needed to fully dissect the cellular networks underlying production of oil and biomass. Here, using nitrate reductase as an example, we demonstrate CRISPR/Cas9-based genome editing for a model industrial microalga.

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