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Plant Cell Reports

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https://www.readbyqxmd.com/read/28444442/high-accumulation-of-anthocyanins-via-the-ectopic-expression-of-atdfr-confers-significant-salt-stress-tolerance-in-brassica-napus-l
#1
Jihye Kim, Won Je Lee, Tien Thanh Vu, Chan Young Jeong, Suk-Whan Hong, Hojoung Lee
The ectopic expression of AtDFR results in increased accumulation of anthocyanins leading to enhanced salinity and drought stress tolerance in B. napus plants. Flavonoids with antioxidant effects confer many additional benefits to plants. Evidence indicates that flavonoids, including anthocyanins, protect tissues against oxidative stress from various abiotic stressors. We determined whether increases in anthocyanins increased abiotic stress tolerance in Brassica napus, because the values of B. napus L. and its cultivation area are increasing worldwide...
April 25, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28434019/recent-developments-in-olive-olea-europaea-l-genetics-and-genomics-applications-in-taxonomy-varietal-identification-traceability-and-breeding
#2
REVIEW
L Sebastiani, M Busconi
The latest results in DNA markers application and genomic studies in olive. Olive (Olea europaea L.) is among the most ancient tree crops worldwide and the source of oil beneficial for human health. Despite this, few data on olive genetics are available in comparison with other cultivated plant species. Molecular information is mainly linked to molecular markers and their application to the study of DNA variation in the Olea europaea complex. In terms of genomic research, efforts have been made in sequencing, heralding the era of olive genomic...
April 22, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28432478/the-arabidopsis-splicing-factors-atu2af65-atu2af35-and-atsf1-shuttle-between-nuclei-and-cytoplasms
#3
Hyo-Young Park, Keh Chien Lee, Yun Hee Jang, Soon-Kap Kim, May Phyo Thu, Jeong Hwan Lee, Jeong-Kook Kim
The Arabidopsis splicing factors, AtU2AF65, AtU2AF35, and AtSF1 shuttle between nuclei and cytoplasms. These proteins also move rapidly and continuously in the nuclei, and their movements are affected by ATP depletion. The U2AF65 proteins are splicing factors that interact with SF1 and U2AF35 proteins to promote U2snRNP for the recognition of the pre-mRNA 3' splice site during early spliceosome assembly. We have determined the subcellular localization and movement of these proteins' Arabidopsis homologs. It was found that Arabidopsis U2AF65 homologs, AtU2AF65a, and AtU2AF65b proteins interact with AtU2AF35a and AtU2AF35b, which are Arabidopsis U2AF35 homologs...
April 21, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28421280/systems-biology-of-seeds-deciphering-the-molecular-mechanisms-of-seed-storage-dormancy-and-onset-of-germination
#4
EDITORIAL
Nese Sreenivasulu
Seeds are heterogeneous storage reserves with wide array of storage compounds that include various soluble carbohydrates, starch polymer, storage proteins and lipids. These stored reserves comprise 70% of the world's caloric intake in the form of food and animal feed produced through sustainable agriculture, which contributes to food and nutritional security. Seed systems biology remains an enigmatic subject in understanding seed storage processes, maturation and pre-germinative metabolism. The reviews and research articles covered in this special issue of Plant Cell Reports highlight recent advances made in the area of seed biology that cover various systems biology applications such as gene regulatory networks, metabolomics, epigenetics and the role of micro-RNA in seed development...
April 18, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28405745/lethal-albinic-seedling-encoding-a-threonyl-trna-synthetase-is-involved-in-development-of-plastid-protein-synthesis-system-in-rice
#5
Yuan-Yan Zhang, Yuan-Yuan Hao, Yi-Hua Wang, Chun-Ming Wang, Yun-Long Wang, Wu-Hua Long, Di Wang, Xi Liu, Ling Jiang, Jian-Min Wan
An albinic rice is caused by mutation of threonyl-tRNA synthetase, which is essential for plant development by stabilizing of NEP and PEP gene expressions and chloroplast protein synthesis. Chloroplast biogenesis and development depend on complex genetic mechanisms. Apart from their function in translation, aminoacyl-tRNA synthetases (aaRSs) play additional role in gene expression regulation, RNA splicing, and cytokine activity. However, their detailed functions in plant development are still poorly understood...
April 12, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28401337/rrm-domain-of-arabidopsis-splicing-factor-sf1-is-important-for-pre-mrna-splicing-of-a-specific-set-of-genes
#6
Keh Chien Lee, Yun Hee Jang, Soon-Kap Kim, Hyo-Young Park, May Phyo Thu, Jeong Hwan Lee, Jeong-Kook Kim
The RNA recognition motif of Arabidopsis splicing factor SF1 affects the alternative splicing of FLOWERING LOCUS M pre-mRNA and a heat shock transcription factor HsfA2 pre-mRNA. Splicing factor 1 (SF1) plays a crucial role in 3' splice site recognition by binding directly to the intron branch point. Although plant SF1 proteins possess an RNA recognition motif (RRM) domain that is absent in its fungal and metazoan counterparts, the role of the RRM domain in SF1 function has not been characterized. Here, we show that the RRM domain differentially affects the full function of the Arabidopsis thaliana AtSF1 protein under different experimental conditions...
April 11, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28401336/genome-wide-identification-and-characterization-of-nb-arc-resistant-genes-in-wheat-triticum-aestivum-l-and-their-expression-during-leaf-rust-infection
#7
Saket Chandra, Andaleeb Z Kazmi, Zainab Ahmed, Gargi Roychowdhury, Veena Kumari, Manish Kumar, Kunal Mukhopadhyay
NB-ARC domain-containing resistance genes from the wheat genome were identified, characterized and localized on chromosome arms that displayed differential yet positive response during incompatible and compatible leaf rust interactions. Wheat (Triticum aestivum L.) is an important cereal crop; however, its production is affected severely by numerous diseases including rusts. An efficient, cost-effective and ecologically viable approach to control pathogens is through host resistance. In wheat, high numbers of resistance loci are present but only few have been identified and cloned...
April 11, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28393269/overexpression-of-sbap37-in-rice-alleviates-concurrent-imposition-of-combination-stresses-and-modulates-different-sets-of-leaf-protein-profiles
#8
Maheshwari Parveda, B Kiran, D L Punita, P B Kavi Kishor
SbAP37 transcription factor contributes to a combination of abiotic stresses when applied simultaneously in rice. It modulates a plethora of proteins that might regulate the downstream pathways to impart salt stress tolerance. APETALA type of transcription factor was isolated from Sorghum bicolor (SbAP37), overexpressed in rice using a salt inducible abscisic acid 2 (ABA2) promoter through Agrobacterium tumefaciens following in planta method. Transgenics were confirmed by PCR amplification of SbAP37, hygromycin phosphotransferase (hptII) marker and ABA2 promoter and DNA blot analysis...
April 9, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28391528/plant-glutathione-transferase-mediated-stress-tolerance-functions-and-biotechnological-applications
#9
REVIEW
Irini Nianiou-Obeidat, Panagiotis Madesis, Christos Kissoudis, Georgia Voulgari, Evangelia Chronopoulou, Athanasios Tsaftaris, Nikolaos E Labrou
Plant glutathione transferases (EC 2.5.1.18, GSTs) are an ancient, multimember and diverse enzyme class. Plant GSTs have diverse roles in plant development, endogenous metabolism, stress tolerance, and xenobiotic detoxification. Their study embodies both fundamental aspects and agricultural interest, because of their ability to confer tolerance against biotic and abiotic stresses and to detoxify herbicides. Here we review the biotechnological applications of GSTs towards developing plants that are resistant to biotic and abiotic stresses...
April 8, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28391527/targeted-gene-disruption-coupled-with-metabolic-screen-approach-to-uncover-the-leafy-cotyledon1-like4-l1l4-function-in-tomato-fruit-metabolism
#10
Custódia Gago, Victoria Drosou, Konstantinos Paschalidis, Adriana Guerreiro, Graça Miguel, Dulce Antunes, Zoe Hilioti
Functional analysis of tomato L1L4 master transcription factor resulted in important metabolic changes affecting tomato fruit quality. Tomato fruits from mutant lines bearing targeted disruption of the heterotrimeric nuclear transcription factor Y (NF-Y) transcription factor (TF) gene LEAFY-COTYLEDON1-LIKE4 (L1L4, NF-YB6), a master regulator of biosynthesis for seed storage proteins and fatty acids, were evaluated for metabolites content and morphology. Metabolic screens using LC-MS/MS-based analysis and physico-chemical methods in different L1L4 mutants of the fourth generation allowed a comparative assessment of the effects of the TF disruption...
April 8, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28378041/precise-oligonucleotide-directed-mutagenesis-of-the-chlamydomonas-reinhardtii-genome
#11
Wen-Zhi Jiang, Sarah Dumm, Mark E Knuth, Steven L Sanders, Donald P Weeks
No abstract text is available yet for this article.
April 4, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28361257/induction-of-anthocyanin-in-the-inner-epidermis-of-red-onion-leaves-by-environmental-stimuli-and-transient-expression-of-transcription-factors
#12
Elizabeth J Wiltshire, Colin C Eady, David A Collings
Novel imaging approaches have allowed measurements of the anthocyanin induction in onion epidermal cells that can be induced through water stress or transient expression of exogenous transcription factors. Environmental and genetic mechanisms that allow the normally colourless inner epidermal cells of red onion (Allium cepa) bulbs to accumulate anthocyanin were quantified by both absorbance ratios and fluorescence. We observed that water-stressing excised leaf segments induced anthocyanin formation, and fluorescence indicated that this anthocyanin was spectrally similar to the anthocyanin in the outer epidermal cells...
March 30, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28352970/quantitative-trait-loci-from-identification-to-exploitation-for-crop-improvement
#13
REVIEW
Jitendra Kumar, Debjyoti Sen Gupta, Sunanda Gupta, Sonali Dubey, Priyanka Gupta, Shiv Kumar
Advancement in the field of genetics and genomics after the discovery of Mendel's laws of inheritance has led to map the genes controlling qualitative and quantitative traits in crop plant species. Mapping of genomic regions controlling the variation of quantitatively inherited traits has become routine after the advent of different types of molecular markers. Recently, the next generation sequencing methods have accelerated the research on QTL analysis. These efforts have led to the identification of more closely linked molecular markers with gene/QTLs and also identified markers even within gene/QTL controlling the trait of interest...
March 28, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28352969/transgenic-pigeonpea-events-expressing-cry1ac-and-cry2aa-exhibit-resistance-to-helicoverpa-armigera
#14
Gourab Ghosh, Shreeparna Ganguly, Arnab Purohit, Rituparna Kundu Chaudhuri, Sampa Das, Dipankar Chakraborti
Independent transgenic pigeonpea events were developed using two cry genes. Transgenic Cry2Aa-pigeonpea was established for the first time. Selected transgenic events demonstrated 100% mortality of Helicoverpa armigera in successive generations. Lepidopteran insect Helicoverpa armigera is the major yield constraint of food legume pigeonpea. The present study was aimed to develop H. armigera-resistant transgenic pigeonpea, selected on the basis of transgene expression and phenotyping. Agrobacterium tumefaciens-mediated transformation of embryonic axis explants of pigeonpea cv UPAS 120 was performed using two separate binary vectors carrying synthetic Bacillus thuringiensis insecticidal crystal protein genes, cry1Ac and cry2Aa...
March 28, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28352968/silencing-slagl6-a-tomato-agamous-like6-lineage-gene-generates-fused-sepal-and-green-petal
#15
Xiaohui Yu, Guoping Chen, Xuhu Guo, Yu Lu, Jianling Zhang, Jingtao Hu, Shibing Tian, Zongli Hu
Silencing SlAGL6 in tomato leads to fused sepal and green petal by influencing the expression of A-, B-class genes. AGAMOUS-LIKE6 (AGL6) lineage is an important clade MADS-box transcription factor and plays essential roles in various developmental programs especially in flower meristem and floral organ development. Here, we isolated a tomato AGL6 lineage gene SlAGL6 and successfully obtained several RNA interference (RNAi) lines. Silencing SlAGL6 led to abnormal fused sepals and light green petals with smaller size...
March 28, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28352967/alternative-splicing-affects-the-targeting-sequence-of-peroxisome-proteins-in-arabidopsis
#16
Chuanjing An, Yuefang Gao, Jinyu Li, Xiaomin Liu, Fuli Gao, Hongbo Gao
A systematic analysis of the Arabidopsis genome in combination with localization experiments indicates that alternative splicing affects the peroxisomal targeting sequence of at least 71 genes in Arabidopsis. Peroxisomes are ubiquitous eukaryotic cellular organelles that play a key role in diverse metabolic functions. All peroxisome proteins are encoded by nuclear genes and target to peroxisomes mainly through two types of targeting signals: peroxisomal targeting signal type 1 (PTS1) and PTS2. Alternative splicing (AS) is a process occurring in all eukaryotes by which a single pre-mRNA can generate multiple mRNA variants, often encoding proteins with functional differences...
March 28, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28349358/crispr-cas9-and-crispr-cpf1-mediated-targeting-of-a-stomatal-developmental-gene-epfl9-in-rice
#17
Xiaojia Yin, Akshaya K Biswal, Jacqueline Dionora, Kristel M Perdigon, Christian P Balahadia, Shamik Mazumdar, Caspar Chater, Hsiang-Chun Lin, Robert A Coe, Tobias Kretzschmar, Julie E Gray, Paul W Quick, Anindya Bandyopadhyay
CRISPR-Cas9/Cpf1 system with its unique gene targeting efficiency, could be an important tool for functional study of early developmental genes through the generation of successful knockout plants. The introduction and utilization of systems biology approaches have identified several genes that are involved in early development of a plant and with such knowledge a robust tool is required for the functional validation of putative candidate genes thus obtained. The development of the CRISPR-Cas9/Cpf1 genome editing system has provided a convenient tool for creating loss of function mutants for genes of interest...
March 27, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28341984/combinatorial-requirement-of-w-and-wt-boxes-in-microbe-associated-molecular-pattern-responsive-synthetic-promoters
#18
Konstantin Kanofsky, Ann-Kathrin Bahlmann, Reinhard Hehl, Do Xuan Dong
The WT-box GGACTTTC belongs to a novel class of MAMP-responsive cis-regulatory sequences that are part of combinatorial elements. Microbe-associated molecular pattern (MAMP)-responsive synthetic promoters were generated with two cis-regulatory modules (CRM1 and CRM2) from the Arabidopsis thaliana WRKY30 promoter. Both modules harbour two W-boxes and one WT-box. Mutation analysis of the synthetic promoters and transient gene expression analysis in parsley protoplasts underline the importance of the W- and WT-boxes for MAMP-responsive gene expression and reveal the combinatorial requirement of at least two boxes for full MAMP responsivity...
March 24, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28337518/both-atrbohd-and-atrbohf-are-essential-for-mediating-responses-to-oxygen-deficiency-in-arabidopsis
#19
Bo Liu, Lirong Sun, Liya Ma, Fu-Shun Hao
Both AtrbohD and AtrbohF promote the increases in activities of ADH, PDC, LDH, and Ca(2+) levels, and induce the expression of multiple hypoxia response genes, thus improving Arabidopsis adaptation to oxygen deficiency. NADPH oxidase AtrbohD and AtrbohF cooperatively play key roles in regulation of growth and stress signaling in Arabidopsis. However, reports on AtrbohD and AtrbohF functioning together in hypoxia signaling are scarce, and the underlying mechanisms remain elusive. Here, we show that the double null mutant atrbohD/F is more sensitive to oxygen deprivation compared with wild type (WT) and the single mutant atrbohD and atrbohF...
March 23, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28314904/the-arabidopsis-orange-ator-gene-promotes-carotenoid-accumulation-in-transgenic-corn-hybrids-derived-from-parental-lines-with-limited-carotenoid-pools
#20
Judit Berman, Uxue Zorrilla-López, Vicente Medina, Gemma Farré, Gerhard Sandmann, Teresa Capell, Paul Christou, Changfu Zhu
The AtOR gene enhances carotenoid levels in corn by promoting the formation of plastoglobuli when the carotenoid pool is limited, but has no further effect when carotenoids are already abundant. The cauliflower orange (or) gene mutation influences carotenoid accumulation in plants by promoting the transition of proplastids into chromoplasts, thus creating intracellular storage compartments that act as metabolic sink. We overexpressed the Arabidopsis OR gene under the control of the endosperm-specific wheat LMW glutenin promoter in a white corn variety that normally accumulates only trace amounts of carotenoids...
March 17, 2017: Plant Cell Reports
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