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Plant Cell Reports

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https://www.readbyqxmd.com/read/28028608/accumulation-of-foreign-polypeptides-to-rice-seed-protein-body-type-i-using-prolamin-portion-sequences
#1
Ai Sasou, Takanari Shigemitsu, Shigeto Morita, Takehiro Masumura
Rice prolamins are accumulated in endoplasmic reticulum (ER)-derived proteins bodies, although conserved sequences retained in ER are not confirmed. We investigated portion sequences of prolamins that must accumulate in PB-Is. Rice seed prolamins are accumulated in endoplasmic reticulum (ER)-derived protein body type I (PB-I), but ER retention sequences in rice prolamin polypeptides have not been confirmed. Here we investigated the lengths of the prolamin portion sequences required for accumulation in PB-Is...
December 27, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/28025661/erratum-to-increasing-the-synthesis-of-bioactive-abietane-diterpenes-in-salvia-sclarea-hairy-roots-by-elicited-transcriptional-reprogramming
#2
M C Vaccaro, A Mariaevelina, N Malafronte, N De Tommasi, A Leone
No abstract text is available yet for this article.
December 27, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/28008473/cyp716a179-functions-as-a-triterpene-c-28-oxidase-in-tissue-cultured-stolons-of-glycyrrhiza-uralensis
#3
Keita Tamura, Hikaru Seki, Hideyuki Suzuki, Mareshige Kojoma, Kazuki Saito, Toshiya Muranaka
CYP716A179, a cytochrome P450 monooxygenase expressed predominantly in tissue-cultured stolons of licorice ( Glycyrrhiza uralensis ), functions as a triterpene C-28 oxidase in the biosynthesis of oleanolic acid and betulinic acid. Cytochrome P450 monooxygenases (P450s) play key roles in the structural diversification of plant triterpenoids. Among these, the CYP716A subfamily, which functions mainly as a triterpene C-28 oxidase, is common in plants. Licorice (Glycyrrhiza uralensis) produces bioactive triterpenoids, such as glycyrrhizin and soyasaponins, and relevant P450s (CYP88D6, CYP72A154, and CYP93E3) have been identified; however, no CYP716A subfamily P450 has been isolated...
December 22, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27999979/salinity-induced-differential-methylation-patterns-in-contrasting-cultivars-of-foxtail-millet-setaria-italica-l
#4
Garima Pandey, Chandra Bhan Yadav, Pranav Pankaj Sahu, Mehanathan Muthamilarasan, Manoj Prasad
Genome-wide methylation analysis of foxtail millet cultivars contrastingly differing in salinity tolerance revealed DNA demethylation events occurring in tolerant cultivar under salinity stress, eventually modulating the expression of stress-responsive genes. Reduced productivity and significant yield loss are the adverse effects of environmental conditions on physiological and biochemical pathways in crop plants. In this context, understanding the epigenetic machinery underlying the tolerance traits in a naturally stress tolerant crop is imperative...
December 20, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27999978/the-linin-promoter-is-highly-effective-in-enhancing-punicic-acid-production-in-arabidopsis
#5
Ziliang Song, Elzbieta Mietkiewska, Randall J Weselake
Enhanced levels of punicic acid were produced in the seed oil of Arabidopsis over-expressing pomegranate FATTY ACID CONJUGASE driven by heterologous promoters, among which the linin promoter was the most efficient. Fatty acids with conjugated double bonds play a special role in determining both the nutritional and industrial uses of plant oils. Punicic acid (18:3Δ(9cis,11trans,13cis) ), a conjugated fatty acid naturally enriched in the pomegranate (Punica granatum) seeds, has gained increasing attention from the biotechnology community toward its production in metabolically engineered oilseed crops because of its significant health benefits...
December 20, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27999977/auxin-synthesis-gene-tms1-driven-by-tuber-specific-promoter-alters-hormonal-status-of-transgenic-potato-plants-and-their-responses-to-exogenous-phytohormones
#6
Oksana O Kolachevskaya, Lidiya I Sergeeva, Kristyna Floková, Irina A Getman, Sergey N Lomin, Valeriya V Alekseeva, Elena B Rukavtsova, Yaroslav I Buryanov, Georgy A Romanov
Ectopic auxin overproduction in transgenic potato leads to enhanced productivity accompanied with concerted and occasional changes in hormonal status, and causing altered response of transformants to exogenous auxin or cytokinin. Previously, we generated potato transformants expressing Agrobacterium-derived auxin synthesis gene tms1 driven by tuber-specific patatin gene promoter (B33-promoter). Here, we studied the endogenous hormonal status and the response to exogenous phytohormones in tms1 transformants cultured in vitro...
December 20, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27999976/changes-in-transcript-expression-patterns-as-a-result-of-cryoprotectant-treatment-and-liquid-nitrogen-exposure-in-arabidopsis-shoot-tips
#7
Briana L Gross, Adam D Henk, Remi Bonnart, Gayle M Volk
Transcripts related to abiotic stress, oxidation, and wounding were differentially expressed in Arabidopsis shoot tips in response to cryoprotectant and liquid nitrogen treatment. Cryopreservation methods have been implemented in genebanks as a strategy to back-up plant genetic resource collections that are vegetatively propagated. Cryopreservation is frequently performed using vitrification methods, whereby shoot tips are treated with cryoprotectant solutions, such as Plant Vitrification Solution 2 (PVS2) or Plant Vitrification Solution 3 (PVS3); these solutions remove and/or replace freezable water within the meristem cells...
December 20, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27999975/erratum-to-physiological-differences-and-changes-in-global-dna-methylation-levels-in-agave-angustifolia-haw-albino-variant-somaclones-during-the-micropropagation-process
#8
Fátima Duarte-Aké, Eduardo Castillo-Castro, Felipe Barredo Pool, Francisco Espadas, Jorge M Santamaría, Manuel L Robert, Clelia De-la-Peña
No abstract text is available yet for this article.
December 20, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27995308/efficient-crispr-cas9-based-gene-knockout-in-watermelon
#9
Shouwei Tian, Linjian Jiang, Qiang Gao, Jie Zhang, Mei Zong, Haiying Zhang, Yi Ren, Shaogui Guo, Guoyi Gong, Fan Liu, Yong Xu
CRISPR/Cas9 system can precisely edit genomic sequence and effectively create knockout mutations in T0 generation watermelon plants. Genome editing offers great advantage to reveal gene function and generate agronomically important mutations to crops. Recently, RNA-guided genome editing system using the type II clustered regularly interspaced short palindromic repeats (CRISPR)-associated protein 9 (Cas9) has been applied to several plant species, achieving successful targeted mutagenesis. Here, we report the genome of watermelon, an important fruit crop, can also be precisely edited by CRISPR/Cas9 system...
December 19, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27988788/pdv2-has-a-dosage-effect-on-chloroplast-division-in-arabidopsis
#10
Ning Chang, Qingqing Sun, Yiqiong Li, Yajuan Mu, Jinglei Hu, Yue Feng, Xiaomin Liu, Hongbo Gao
PDV2 has a dosage effect on chloroplast division in Arabidopsis thaliana , but this effect may vary in different plants. Chloroplasts have to be divided as plants grow to maintain an optimized number in the cell. Chloroplasts are divided by protein complexes across the double membranes from the stroma side to the cytosolic side. PDV2 is a chloroplast division protein on the chloroplast outer membrane. It recruits the dynamin-related GTPase ARC5 to the division site. The C-terminus of PDV2 and the C-terminus of ARC6 interact in the intermembrane space, which is important for the localization of PDV2...
December 17, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27986993/characterization-of-a-vacuolar-h-atpase-g-subunit-gene-from-juglans-regia-jrvhag1-involved-in-mannitol-induced-osmotic-stress-tolerance
#11
Zhenggang Xu, Yunlin Zhao, Yu Ge, Jiao Peng, Meng Dong, Guiyan Yang
JrVHAG1 is an important candidate gene for plant osmotic tolerance regulation. Vacuolar H(+)-ATPase (V-ATPase) is important for plant responses to abiotic stress; the G subunit is a vital part of V-ATPase. In this study, a G subunit of V-ATPase was cloned from Juglans regia (JrVHAG1) and functionally characterized. JrVHAG1 transcription was induced by mannitol that increasing 17.88-fold in the root at 12 h and 19.16-fold in the leaf at 96 h compared to that under control conditions. JrVHAG1 was overexpressed in Arabidopsis and three lines (G2, G6, and G9) with highest expression levels were selected for analysis...
December 16, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27942841/membrane-related-hallmarks-of-kinetin-induced-pcd-of-root-cortex-cells
#12
Andrzej Kaźmierczak, Magdalena Doniak, Przemysław Bernat
Changes in cellular membrane potential and their fluidisation are the hallmarks of cell death induction with kinetin in root cortex. Programmed cell death (PCD), one of the essential processes in plant development, is still poorly understood. In this paper, the scientific plant model, V. faba ssp. minor seedling roots after kinetin application which triggers off programmed death of cortex cells, was used to recognise membrane-related aspects of plant cell death. Spectrophotometric, reflectometric and microscopic studies showed that the PCD induced by kinetin is accompanied by higher potassium ions leakage from roots, loss of plasma and ER membrane potentials (expressed by their lower amounts and higher index of fatty acid unsaturation), malformation of nuclear envelope, lower total lipid amount and formation of their peroxides, lower amount of phospholipids and changes in their composition...
December 10, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27942840/expression-of-an-immunogenic-ltb-based-chimeric-protein-targeting-zaire-ebolavirus-epitopes-from-gp1-in-plant-cells
#13
Regina Ríos-Huerta, Elizabeth Monreal-Escalante, Dania O Govea-Alonso, Carlos Angulo, Sergio Rosales-Mendoza
An antigenic protein targeting two epitopes from the Zaire ebolavirus GP1 protein was expressed in plant cells rendering an antigen capable of inducing humoral responses in mouse when administered subcutaneously or orally. The 2014 Ebola outbreak made clear that new treatments and prophylactic strategies to fight this disease are needed. Since vaccination is an intervention that could achieve the control of this epidemic disease, exploring the production of new low-cost vaccines is a key path to consider; especially in developing countries...
December 9, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27933379/the-role-of-receptor-like-protein-kinases-rlks-in-abiotic-stress-response-in-plants
#14
REVIEW
Yaoyao Ye, Yanfei Ding, Qiong Jiang, Feijuan Wang, Junwei Sun, Cheng Zhu
We review and introduce recent studies on RLK s involved in the abiotic stress response and provide insights into potential regulatory mechanisms for alleviating abiotic stress. Abiotic stresses are important factors affecting plant growth and development, resulting in crop production reduction and even plant death. To survive, plants utilize different mechanisms to respond and adapt to continuously changing environmental factors. Understanding of the molecular mechanisms of plant response to various stresses will aid in improving tolerance of plants to abiotic stress through genetic engineering, which would greatly promote the development of modern agriculture...
December 8, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27904946/chlorophyll-fluorescence-lifetime-imaging-provides-new-insight-into-the-chlorosis-induced-by-plant-virus-infection
#15
Rong Lei, Hongshan Jiang, Fan Hu, Jin Yan, Shuifang Zhu
Leaf chlorosis induced by plant virus infection has a short fluorescence lifetime, which reflects damaged photosynthetic complexes and degraded chloroplasts. Plant viruses often induce chlorosis and necrosis, which are intimately related to photosynthetic functions. Chlorophyll fluorescence lifetime measurement is a valuable noninvasive tool for analyzing photosynthetic processes and is a sensitive indicator of the environment surrounding the fluorescent molecules. In this study, our central goal was to explore the effect of viral infection on photosynthesis by employing chlorophyll fluorescence lifetime imaging (FLIM), steady-state fluorescence, non-photochemical quenching (NPQ), transmission electron microscopy (TEM), and pigment analysis...
November 30, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27896424/dynamic-expression-analysis-of-early-response-genes-induced-by-potato-virus-y-in-pvy-resistant-nicotiana-tabacum
#16
Shuai Chen, Fengxia Li, Dan Liu, Caihong Jiang, Lijie Cui, Lili Shen, Guanshan Liu, Aiguo Yang
Dynamic transcriptional changes of the host early responses genes were detected in PVY-resistant tobacco varieties infected with Potato virus Y; PVY resistance is a complex process that needs series of stress responses. Potato virus Y (PVY) causes a severe viral disease in cultivated crops, especially in Solanum plants. To understand the molecular basis of plant responses to the PVY stress, suppression subtractive hybridization (SSH) and microarray approaches were combined to identify the potentially important or novel genes that were involved in early stages (12 h, 1, 2, 3, 5, 8 days) of tobacco response to PVY infection...
November 28, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27882409/the-pivotal-role-of-abscisic-acid-signaling-during-transition-from-seed-maturation-to-germination
#17
REVIEW
An Yan, Zhong Chen
Seed maturation and germination are two continuous developmental processes that link two distinct generations in spermatophytes; the precise genetic control of these two processes is, therefore, crucially important for the survival of the next generation. Pieces of experimental evidence accumulated so far indicate that a concerted action of endogenous signals and environmental cues is required to govern these processes. Plant hormone abscisic acid (ABA) has been suggested to play a predominant role in directing seed maturation and maintaining seed dormancy under unfavorable environmental conditions until antagonized by gibberellins (GA) and certain environmental cues to allow the commencement of seed germination when environmental conditions are favorable; therefore, the balance of ABA and GA is a major determinant of the timing of seed germination...
November 23, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27873007/difference-in-capsaicinoid-biosynthesis-gene-expression-in-the-pericarp-reveals-elevation-of-capsaicinoid-contents-in-chili-peppers-capsicum-chinense
#18
Yoshiyuki Tanaka, Fumihiro Nakashima, Erasmus Kirii, Tanjuro Goto, Yuichi Yoshida, Ken-Ichiro Yasuba
This research reveals that the up-regulated expression of multiple capsaicinoid biosynthetic genes in pericarp tissue leads to the elevation of total capsaicinoid content in chili pepper fruit. Capsaicinoids are health-functional compounds that are produced uniquely in chili pepper fruits. A high capsaicinoid level is one of the major parameters determining the commercial quality and health-promoting properties of chili peppers. To investigate the mechanisms responsible for its high contents, we compared an extremely pungent cultivar 'Trinidad Moruga Scorpion Yellow' (MY) with other cultivars of different pungency levels (Fushimi-amanaga, Takanotsume, Red Habanero)...
November 21, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27866260/isolation-and-characterization-of-a-novel-cadmium-regulated-yellow-stripe-like-transporter-snysl3-in-solanum-nigrum
#19
Shanshan Feng, Jinjuan Tan, Yuxiu Zhang, Shuang Liang, Shuqin Xiang, Hong Wang, Tuanyao Chai
SnYSL3 encodes a plasma-localized transporter delivering various metal-nicotianamine complexes. The expression of SnYSL3 is up-regulated by excess Cd, suggesting an important role for SnYSL3 in response to Cd stress. The Yellow Stripe-Like (YSL) transporters have been proposed to participate in metal uptake and long-range transport in model plants. In this study, we isolated and characterized a novel member of the YSL gene family, SnYSL3, from the cadmium hyperaccumulator Solanum nigrum. SnYSL3 was constitutively expressed and encodes a plasma membrane-localized protein...
November 19, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27864606/growth-increase-of-arabidopsis-by-forced-expression-of-rice-45s-rrna-gene
#20
So Makabe, Reiko Motohashi, Ikuo Nakamura
Forced expression of rice 45S rRNA gene conferred ca. 2-fold increase of above-ground growth in transgenic Arabidopsis . This growth increase was probably brought by cell proliferation, not by cell enlargement. Recent increase in carbon dioxide emissions is causing global climate change. The use of plant biomass as alternative energy source is one way to reduce these emissions. Therefore, reinforcement of plant biomass production is an urgent key issue to overcome both depletion of fossil energies and emission of carbon dioxide...
November 18, 2016: Plant Cell Reports
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