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Plant Cell Reports

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https://www.readbyqxmd.com/read/29159566/editorial-epigenetic-regulation-of-plant-development-and-stress-responses
#1
EDITORIAL
Tarek Hewezi
No abstract text is available yet for this article.
November 20, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29151156/deep-rnaseq-indicates-protective-mechanisms-of-cold-tolerant-indica-rice-plants-during-early-vegetative-stage
#2
Raul Antonio Sperotto, Artur Teixeira de Araújo Junior, Janete Mariza Adamski, Denise Cargnelutti, Felipe Klein Ricachenevsky, Ben-Hur Neves de Oliveira, Renata Pereira da Cruz, Rinaldo Pires Dos Santos, Leila Picolli da Silva, Janette Palma Fett
Cold-tolerance in rice may be related to increased cellulose deposition in the cell wall, membrane fatty acids unsaturation and differential expression of several newly identified genes. Low temperature exposure during early vegetative stages limits rice plant's growth and development. Most genes previously related to cold tolerance in rice are from the japonica subspecies. To help clarify the mechanisms that regulate cold tolerance in young indica rice plants, comparative transcriptome analysis of 6 h cold-treated (10 °C) leaves from two genotypes, cold-tolerant (CT) and cold-sensitive (CS), was performed...
November 18, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29150823/metabolic-dynamics-and-physiological-adaptation-of-panax-ginseng-during-development
#3
Yu-Jin Kim, Sung Chul Joo, Jianxin Shi, Chaoyang Hu, Sheng Quan, Jianping Hu, Johan Sukweenadhi, Padmanaban Mohanan, Deok-Chun Yang, Dabing Zhang
The dynamics of metabolites from leaves to roots of Panax ginseng during development has revealed the tissue-specific and year-specific metabolic networks. Being an essential Oriental medicinal plant, ginseng (Panax ginseng Meyer) is a slow-growing perennial herb-accumulating pharmaceutically active metabolites such as ginsenosides in roots during growth. However, little is known about how ginseng plants survive in the harsh environments such as winter cold and summer heat for a longer period and accumulates those active metabolites as the plant grows...
November 17, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29149369/the-osps1-f-gene-regulates-growth-and-development-in-rice-by-modulating-photosynthetic-electron-transport-rate
#4
Rengasamy Ramamoorthy, Bhushan Vishal, Srinivasan Ramachandran, Prakash P Kumar
Ds insertion in rice OsPS1-F gene results in semi-dwarf plants with reduced tiller number and grain yield, while genetic complementation with OsPS1-F rescued the mutant phenotype. Photosynthetic electron transport is regulated in the chloroplast thylakoid membrane by multi-protein complexes. Studies about photosynthetic machinery and its subunits in crop plants are necessary, because they could be crucial for yield enhancement in the long term. Here, we report the characterization of OsPS1-F (encoding Oryza sativa PHOTOSYSTEM 1-F subunit) using a single copy Ds insertion rice mutant line...
November 17, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29119291/determination-of-histone-epigenetic-marks-in-arabidopsis-and-tomato-genes-in-the-early-response-to-botrytis-cinerea
#5
Óscar Crespo-Salvador, Mónica Escamilla-Aguilar, Jaime López-Cruz, Gerardo López-Rodas, Carmen González-Bosch
Determination of histone epigenetic marks in Arabidopsis and tomato genes in the early response to Botrytis cinerea may contribute to find biomarkers of the early detection of this devastating pathogen. Recent studies have linked epigenetic modifications with plant responses to biotic stresses. Information about specific histone marks upon necrotrophic pathogens is scarce. Here we wondered whether the altered responsiveness of specific genes in plants infected with Botrytis cinerea was associated with changes in chromatin structure...
November 8, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29098377/overexpression-of-sweet-sorghum-cryptochrome-1a-confers-hypersensitivity-to-blue-light-abscisic-acid-and-salinity-in-arabidopsis
#6
Tingting Zhou, Lingyang Meng, Yue Ma, Qing Liu, Yunyun Zhang, Zhenming Yang, Deguang Yang, Mingdi Bian
This work provides the bioinformatics, expression pattern and functional analyses of cryptochrome 1a from sweet sorghum (SbCRY1a), together with an exploration of the signaling mechanism mediated by SbCRY1a. Sweet sorghum [Sorghum bicolor (L.) Moench] is considered to be an ideal candidate for biofuel production due to its high efficiency of photosynthesis and the ability to maintain yield under harsh environmental conditions. Blue light receptor cryptochromes regulate multiple aspects of plant growth and development...
November 2, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29090330/characterization-of-promoter-of-egpal1-a-novel-pal-gene-from-the-oil-palm-elaeis-guineensis-jacq
#7
Chong Yu Lok Yusuf, Janna Ong Abdullah, Noor Azmi Shaharuddin, Idris Abu Seman, Mohd Puad Abdullah
The oil palm EgPAL1 gene promoter and its regulatory region were functional as a promoter in the heterologous system of Arabidopsis according to the cis-acting elements present in that region. The promoter was developmentally regulated, vascular tissue specific and responsive to water stress agents. Phenylalanine ammonia lyase (PAL, EC 4.3.1.24) is the key enzyme of the phenylpropanoid pathway which plays important roles in plant development and adaptation. To date, there is no report on the study of PAL from oil palm (Elaeis guineensis), an economically important oil crop...
October 31, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29086003/the-linum-usitatissimum-l-plastome-reveals-atypical-structural-evolution-new-editing-sites-and-the-phylogenetic-position-of-linaceae-within-malpighiales
#8
Amanda de Santana Lopes, Túlio Gomes Pacheco, Karla Gasparini Dos Santos, Leila do Nascimento Vieira, Miguel Pedro Guerra, Rubens Onofre Nodari, Emanuel Maltempi de Souza, Fábio de Oliveira Pedrosa, Marcelo Rogalski
The plastome of Linum usitatissimum was completely sequenced allowing analyses of evolution of genome structure, RNA editing sites, molecular markers, and indicating the position of Linaceae within Malpighiales. Flax (Linum usitatissimum L.) is an economically important crop used as food, feed, and industrial feedstock. It belongs to the Linaceae family, which is noted by high morphological and ecological diversity. Here, we reported the complete sequence of flax plastome, the first species within Linaceae family to have the plastome sequenced, assembled and characterized in detail...
October 30, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29080908/gid1-expression-is-associated-with-ovule-development-of-sexual-and-apomictic-plants
#9
Luciana Gomes Ferreira, Diva Maria de Alencar Dusi, André Southernman Teixeira Irsigler, Ana Cristina Meneses Mendes Gomes, Marta Adelina Mendes, Lucia Colombo, Vera Tavares de Campos Carneiro
BbrizGID1 is expressed in the nucellus of apomictic Brachiaria brizantha, previous to aposporous initial differentiation. AtGID1a overexpression triggers differentiation of Arabidopsis thaliana MMC-like cells, suggesting its involvement in ovule development. GIBBERELLIN-INSENSITIVE DWARF1 (GID1) is a gibberellin receptor previously identified in plants and associated with reproductive development, including ovule formation. In this work, we characterized the Brachiaria brizantha GID1 gene (BbrizGID1). BbrizGID1 showed up to 92% similarity to GID1-like gibberellin receptors of other plants of the Poaceae family and around 58% to GID1-like gibberellin receptors of Arabidopsis thaliana...
October 28, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29080907/m-type-thioredoxins-are-involved-in-the-xanthophyll-cycle-and-proton-motive-force-to-alter-npq-under-low-light-conditions-in-arabidopsis
#10
Qingen Da, Ting Sun, Menglong Wang, Honglei Jin, Mengshu Li, Dongru Feng, Jinfa Wang, Hong-Bin Wang, Bing Liu
M-type thioredoxins are required to regulate zeaxanthin epoxidase activity and to maintain the steady-state level of the proton motive force, thereby influencing NPQ properties under low-light conditions in Arabidopsis. Non-photochemical quenching (NPQ) helps protect photosynthetic organisms from photooxidative damage via the non-radiative dissipation of energy as heat. Energy-dependent quenching (qE) is a major constituent of NPQ. However, the mechanism underlying the regulation of qE is not well understood...
October 28, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29079899/epigenetic-regulation-of-the-expression-of-wrky75-transcription-factor-in-response-to-biotic-and-abiotic-stresses-in-solanaceae-plants
#11
María José López-Galiano, Ana I González-Hernández, Oscar Crespo-Salvador, Carolina Rausell, M Dolores Real, Mónica Escamilla, Gemma Camañes, Pilar García-Agustín, Carmen González-Bosch, Inmaculada García-Robles
SlyWRKY75: gene expression was induced in response to biotic stresses, especially in Botrytis cinerea-infected tomato plants, in which Sly-miR1127-3p is a putative SlyWRKY75 regulator and epigenetic marks were detected. WRKY75 transcription factor involved in Pi homeostasis was recently found also induced in defense against necrotrophic pathogens. In this study, we analyzed by RT-qPCR the expression of SlyWRKY75 gene in tomato plants in response to abiotic stresses (drought or heat) and biotic stresses (Colorado potato beetle larvae infestation, Pseudomonas syringae or Botrytis cinerea infection) being only differentially expressed following biotic stresses, especially upon B...
October 27, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29079898/overexpression-of-a-predominantly-root-expressed-nac-transcription-factor-in-wheat-roots-enhances-root-length-biomass-and-drought-tolerance
#12
Dandan Chen, Shoucheng Chai, C Lynne McIntyre, Gang-Ping Xue
TaRNAC1 is a constitutively and predominantly root-expressed NAC transcription factor. TaRNAC1 overexpression in wheat roots confers increased root length, biomass and drought tolerance and improved grain yield under water limitation. A large and deep root system is an important trait for yield sustainability of dryland cereal crops in drought-prone environments. This study investigated the role of a predominantly root-expressed NAC transcription factor from wheat (TaRNAC1) in the root growth. Expression analysis showed that TaRNAC1 was a constitutively expressed gene with high level expression in the roots and was not drought-upregulated...
October 27, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29075848/compensatory-rebalancing-of-rice-prolamins-by-production-of-recombinant-prolamin-bioactive-peptide-fusion-proteins-within-er-derived-protein-bodies
#13
Fumio Takaiwa, Lijun Yang, Yuhya Wakasa, Kenjiro Ozawa
Bioactive peptide was produced by fusion to rice prolamins in transgenic rice seeds. Their accumulation levels were affected by their deposition sites and by compensatory rebalancing between prolamins within PB-Is. Peptide immunotherapy using analogue peptide ligands (APLs) is one of promising treatments against autoimmune diseases. Use of seed storage protein as a fusion carrier is reasonable strategy for production of such small size bioactive peptides. In this study, to examine the efficacy of various rice prolamins deposited in ER-derived protein bodies (PB-Is), the APL12 from the Glucose-6-phosphate isomerase (GPI325-339) was expressed by fusion to four types of representative prolamins under the control of the individual native promoters...
October 26, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29058037/epigenetic-regulation-of-agronomical-traits-in-brassicaceae
#14
REVIEW
Etsuko Itabashi, Kenji Osabe, Ryo Fujimoto, Tomohiro Kakizaki
Epigenetic regulation, covalent modification of DNA and changes in histone proteins are closely linked to plant development and stress response through flexibly altering the chromatin structure to regulate gene expression. In this review, we will illustrate the importance of epigenetic influences by discussing three agriculturally important traits of Brassicaceae. (1) Vernalization, an acceleration of flowering by prolonged cold exposure regulated through epigenetic silencing of a central floral repressor, FLOWERING LOCUS C...
October 20, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29038910/analysis-of-somaclonal-variation-in-transgenic-and-regenerated-plants-of-arabidopsis-thaliana-using-methylation-related-metaflp-and-tmd-markers
#15
Carlos J Coronel, Ana I González, María L Ruiz, Carlos Polanco
We provide evidence that nucleotide sequence and methylation status changes occur in the Arabidopsis genome during in vitro tissue culture at a frequency high enough to represent an important source of variation. Somaclonal variation is a general consequence of the tissue culture process that has to be analyzed specifically when regenerated plants are obtained in any plant species. Currently, there are few studies about the variability comprising sequence changes and methylation status at the DNA level, generated by the culture of A...
October 16, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29032427/soft-mechanical-stimulation-induces-a-defense-response-against-botrytis-cinerea-in-strawberry
#16
Rodrigo Hernán Tomas-Grau, Fernando José Requena-Serra, Verónica Hael-Conrad, Martín Gustavo Martínez-Zamora, María Fernanda Guerrero-Molina, Juan Carlos Díaz-Ricci
Genes associated with plant mechanical stimulation were found in strawberry genome. A soft mechanical stimulation (SMS) induces molecular and biochemical changes in strawberry plants, conferring protection against Botrytis cinerea. Plants have the capacity to induce a defense response after exposure to abiotic stresses acquiring resistance towards pathogens. It was reported that when leaves of Arabidopsis thaliana were wounded or treated with a soft mechanical stimulation (SMS), they could resist much better the attack of the fungal pathogen Botrytis cinerea, and this effect was accompanied by an oxidative burst and the expression of touch-inducible genes (TCH)...
October 14, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29032426/transgenerational-stress-adaption-an-opportunity-for-ecological-epigenetics
#17
Arne Weinhold
In the recent years, there has been considerable interest to investigate the adaptive transgenerational plasticity of plants and how a "stress memory" can be transmitted to the following generation. Although, increasing evidence suggests that transgenerational adaptive responses have widespread ecological relevance, the underlying epigenetic processes have rarely been elucidated. On the other hand, model plant species have been deeply investigated in their genome-wide methylation landscape without connecting this to the ecological reality of the plant...
October 14, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29032424/not-just-gene-expression-3d-implications-of-chromatin-modifications-during-sexual-plant-reproduction
#18
Stefanie Dukowic-Schulze, Chang Liu, Changbin Chen
DNA methylation and histone modifications are epigenetic changes on a DNA molecule that alter the three-dimensional (3D) structure locally as well as globally, impacting chromatin looping and packaging on a larger scale. Epigenetic marks thus inform higher-order chromosome organization and placement in the nucleus. Conventional epigenetic marks are joined by chromatin modifiers like cohesins, condensins and membrane-anchoring complexes to support particularly 3D chromosome organization. The most popular consequences of epigenetic modifications are gene expression changes, but chromatin modifications have implications beyond this, particularly in actively dividing cells and during sexual reproduction...
October 14, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29026973/active-dna-demethylation-mechanism-and-role-in-plant-development
#19
REVIEW
Yan Li, Suresh Kumar, Weiqiang Qian
Active DNA demethylation (enzymatic removal of methylated cytosine) regulates many plant developmental processes. In Arabidopsis, active DNA demethylation entails the base excision repair pathway initiated by the Repressor of silencing 1/Demeter family of bifunctional DNA glycosylases. In this review, we first present an introduction to the recent advances in our understanding about the mechanisms of active DNA demethylation. We then focus on the role of active DNA demethylation in diverse developmental processes in various plant species, including the regulation of seed development, pollen tube formation, stomatal development, fruit ripening, and nodule development...
October 12, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28951953/plant-small-rnas-the-essential-epigenetic-regulators-of-gene-expression-for-salt-stress-responses-and-tolerance
#20
REVIEW
Vinay Kumar, Tushar Khare, Varsha Shriram, Shabir H Wani
Saline environment cues distort the plant growth, development and crop yield. Epigenetics has emerged as one of the prime themes in plant functional genomics for molecular-stress-physiology research, as copious studies have provided new visions into the epigenetic control of stress adaptations. The epigenetic control is associated with the regulation of the expression of stress-related genes which also comprises many steady alterations inherited in next cellular generation as stress memory. These epigenetic amendments also implicate induction of small RNA (sRNA)-mediated fine-tuning of transcriptional and post-transcriptional regulations of gene expression...
September 26, 2017: Plant Cell Reports
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