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Plant proteins

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https://www.readbyqxmd.com/read/28445834/light-harvesting-antenna-complexes-in-the-moss-physcomitrella-patens-implications-for-the-evolutionary-transition-from-green-algae-to-land-plants
#1
REVIEW
Masakazu Iwai, Makio Yokono
Plants have successfully adapted to a vast range of terrestrial environments during their evolution. To elucidate the evolutionary transition of light-harvesting antenna proteins from green algae to land plants, the moss Physcomitrella patens is ideally placed basally among land plants. Compared to the genomes of green algae and land plants, the P. patens genome codes for more diverse and redundant light-harvesting antenna proteins. It also encodes Lhcb9, which has characteristics not found in other light-harvesting antenna proteins...
April 23, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28445829/the-role-of-peu-mir164-and-its-target-penac-genes-in-response-to-abiotic-stress-in-populus-euphratica
#2
Xin Lu, Hui Dun, Conglong Lian, Xiaofei Zhang, Weilun Yin, Xinli Xia
Plant miR164 family is highly conserved and miR164 members regulate conserved targets belonging to NAC transcription factors. Our previous studies have revealed that peu-miR164a-e and its target gene POPTR_0007s08420 participate in abiotic stress response in Populus euphratica according to deep sequencing and degradome sequencing. In this study, miR164 family comprises six members that generate two mature products (miR164a-e and miR164f) and target seven NAC genes in P. euphratica. Co-expression in Nicotiana benthamiana and 5' RACE confirmed that peu-miR164 directs PeNAC070, PeNAC012 and PeNAC028 mRNAs cleavage...
April 8, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28445699/journey-of-cystatins-from-being-mere-thiol-protease-inhibitors-to-at-heart-of-many-pathological-conditions
#3
REVIEW
Anas Shamsi, Bilqees Bano
Cystatins are thiol proteinase inhibitors (TPI), present ubiquitously in animals, plants and micro-organisms. These are not merely inhibitors rather they are at heart of many pathological conditions ranging from diabetes to renal failure. These are essential for maintenance of protein balance of the cell; once this balance gets disturbed, it may lead to cell death. Thus, cystatins cannot be merely regarded as TPI's as these have been found to play a pivotal role in tumorigenesis and neurodegenerative diseases...
April 23, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28445010/detection-of-serum-antibodies-to-hepatitis-e-virus-based-on-hev-genotype-3-orf2-capsid-protein-expressed-in-nicotiana-benthamiana
#4
Milena Mazalovska, Nikola Varadinov, Tsvetoslav Koynarski, Ivan Minkov, Pavel Teoharov, George P Lomonossoff, Gergana Zahmanova
BACKGROUND: Hepatitis E virus (HEV) causes epidemics in developing countries and is primarily transmitted through the fecal-oral route. There have been recent reports on the zoonotic spread of the virus, and several animal species, primarily pigs, have been recognized as reservoirs of HEV. Because of its possible spread, there is an urgent need of a method for the cost-effective production of HEV proteins that can be used as diagnostic antigens for the serological detection of anti-HEV antibodies...
July 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28444858/dietary-protein-content-for-an-optimal-diet-a-clinical-view
#5
EDITORIAL
Lidia Santarpia, Franco Contaldo, Fabrizio Pasanisi
The dietary protein role in different clinical nutritional conditions and some physio-pathological perspectives is a current and hot topic to discuss. Recent Proceedings of the Protein Summit 2, joining more than 60 nutrition scientists, health experts, and nutrition educators, suggest to increase plant but, in particular, animal protein intake because richer in leucine and consequently more effective to influence anabolic protein metabolism. The Panel conclusions are in apparent contradiction with the nutritional ecology statements, which strongly sustain the reduction of animal origin foods in the human diet and are currently concerned about the excessive, mainly animal protein intake in western and westernized Countries...
April 25, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28444595/cloning-and-characterization-of-auxin-efflux-carrier-genes-ecpin1a-and-ecpin1b-from-finger-millet-eleusine-coracana-l
#6
Tapan Kumar Mohanta, Hanhong Bae
Auxin signaling events in plants play important role in developmental regulation as well as gravitropic responses and plays crucial role in the development of root, lateral root and root hairs. The gene that is known to be most important in the development of root, lateral root and root hairs is commonly known as auxin efflux carrier (PIN). Being commonly known as orphan plant, the genome sequence of Eleusine coracana is not known yet, and hence it was very difficult to conduct advanced research in root development in this plant...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28444544/methylglyoxal-detoxification-by-a-dj-1-family-protein-provides-dual-abiotic-and-biotic-stress-tolerance-in-transgenic-plants
#7
Prasad Melvin, Kondalarao Bankapalli, Patrick D'Silva, P V Shivaprasad
Methylglyoxal (MG) is a key signaling molecule resulting from glycolysis and other metabolic pathways. During abiotic stress, MG levels accumulate to toxic levels in affected cells. However, MG is routinely detoxified through the action of DJ1/PARK7/Hsp31 proteins that are highly conserved across kingdoms and mutations in such genes are associated with neurodegenerative diseases. Here, we report for the first time that, similar to abiotic stresses, MG levels increase during biotic stresses in plants, likely contributing to enhanced susceptibility to a wide range of stresses...
April 25, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28444347/fluxomics-links-cellular-functional-analyses-to-whole-plant-phenotyping
#8
Christophe Salon, Jean-Christophe Avice, Sophie Colombié, Martine Dieuaide-Noubhani, Karine Gallardo, Christian Jeudy, Alain Ourry, Marion Prudent, Anne-Sophie Voisin, Dominique Rolin
Fluxes through metabolic pathways reflect the integration of genetic and metabolic regulations. While it is attractive to measure all the mRNAs (transcriptome), all the proteins (proteome), and a large number of the metabolites (metabolome) in a given cellular system, linking and integrating this information remains difficult. Measurement of metabolome-wide fluxes (termed the fluxome) provides an integrated functional output of the cell machinery and a better tool to link functional analyses to plant phenotyping...
April 22, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28444344/hydrogen-sulfide-regulates-the-cytosolic-nuclear-partitioning-of-glyceraldehyde-3-phosphate-dehydrogenase-by-enhancing-its-nuclear-localization
#9
Ángeles Aroca, Markus Schneider, Renate Scheibe, Cecilia Gotor, Luis C Romero
Hydrogen sulfide is an important signaling molecule comparable to nitric oxide and hydrogen peroxide in plants. The underlying mechanism of its action is unknown, although it has been proposed to be S-sulhydration. This posttranslational modification converts the thiol groups of cysteines within proteins to persulfides, resulting in functional changes of the proteins. In Arabidopsis thaliana, S-sulfhydrated proteins have been identified, including the cytosolic isoforms of glyceraldehyde-3-phosphate dehydrogenase GapC1 and GapC2...
April 24, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28444333/a-non-classical-member-of-the-protein-disulfide-isomerase-family-pdi7-of-arabidopsis-thaliana-localizes-to-the-cis-golgi-and-endoplasmic-reticulum-membranes
#10
Christen Y L Yuen, Pengfei Wang, Byung-Ho Kang, Kristie Matsumoto, David A Christopher
Members of the protein disulfide isomerase (PDI)-C subfamily are chimeric proteins containing the thioredoxin (Trx) domain of PDIs, and the conserved N- and C-terminal Pfam domains of Erv41p/Erv46p-type cargo receptors. They are unique to plants and chromalveolates. The Arabidopsis genome encodes three PDI-C isoforms: PDI7, PDI12, and PDI13. Here we demonstrate that PDI7 is a 65-kDa integral membrane glycoprotein expressed throughout many Arabidopsis tissues. Using a PDI7-specific antibody, we show through immunoelectron microscopy that PDI7 localizes to the endoplasmic reticulum (ER) and Golgi membranes in wild-type root tip cells, and was also detected in vesicles...
April 21, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28444222/feronia-receptor-kinase-at-the-crossroad-of-hormone-signaling-and-stress-responses
#11
Hongdong Liao, Renjie Tang, Xin Zhang, Sheng Luan, Feng Yu
Plant receptor-like kinases (RLKs) are involved in nearly all aspects of plant life including growth, development and stress response. Recent studies show that FERONIA (FER), a CrRLK1L subfamily member, is a versatile regulator of cell expansion and serves as a signaling node mediating crosstalks among multiple phytohormones. As a receptor for the RALF (Rapid Alkalinization Factor) peptide ligand, FER triggers a downstream signaling cascade that leads to a rapid cytoplasmic calcium increase and inhibition of cell elongation in plants...
April 19, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28444194/evolution-of-the-3r-myb-gene-family-in-plants
#12
Guanqiao Feng, J Gordon Burleigh, Edward L Braun, Wenbin Mei, W Brad Barbazuk
Plant 3R-MYB transcription factors are an important subgroup of the MYB super family in plants; however, their evolutionary history and functions remain poorly understood. We identified 225 3R-MYB proteins from 65 plant species, including algae and all major lineages of land plants. Two segmental duplication events preceding the common ancestor of angiosperms have given rise to three subgroups of the 3R-MYB proteins. Five conserved introns in the domain region of the 3R-MYB genes were identified, which arose through a step-wise pattern of intron gain during plant evolution...
April 20, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28443288/rubisco-activases-aaa-chaperones-adapted-to-enzyme-repair
#13
REVIEW
Javaid Y Bhat, Gabriel Thieulin-Pardo, F Ulrich Hartl, Manajit Hayer-Hartl
Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), the key enzyme of the Calvin-Benson-Bassham cycle of photosynthesis, requires conformational repair by Rubisco activase for efficient function. Rubisco mediates the fixation of atmospheric CO2 by catalyzing the carboxylation of the five-carbon sugar ribulose-1,5-bisphosphate (RuBP). It is a remarkably inefficient enzyme, and efforts to increase crop yields by bioengineering Rubisco remain unsuccessful. This is due in part to the complex cellular machinery required for Rubisco biogenesis and metabolic maintenance...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/28443131/a-bioinformatics-based-alternative-mrna-splicing-code-that-may-explain-some-disease-mutations-is-conserved-in-animals
#14
Wen Qu, Pablo Cingolani, Barry R Zeeberg, Douglas M Ruden
Deep sequencing of cDNAs made from spliced mRNAs indicates that most coding genes in many animals and plants have pre-mRNA transcripts that are alternatively spliced. In pre-mRNAs, in addition to invariant exons that are present in almost all mature mRNA products, there are at least 6 additional types of exons, such as exons from alternative promoters or with alternative polyA sites, mutually exclusive exons, skipped exons, or exons with alternative 5' or 3' splice sites. Our bioinformatics-based hypothesis is that, in analogy to the genetic code, there is an "alternative-splicing code" in introns and flanking exon sequences, analogous to the genetic code, that directs alternative splicing of many of the 36 types of introns...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28443128/physiological-and-molecular-characterization-of-hydroxyphenylpyruvate-dioxygenase-hppd-inhibitor-resistance-in-palmer-amaranth-amaranthus-palmeri-s-wats
#15
Sridevi Nakka, Amar S Godar, Prashant S Wani, Curtis R Thompson, Dallas E Peterson, Jeroen Roelofs, Mithila Jugulam
Herbicides that inhibit hydroxyphenylpyruvate dioxygenase (HPPD) such as mesotrione are widely used to control a broad spectrum of weeds in agriculture. Amaranthus palmeri is an economically troublesome weed throughout the United States. The first case of evolution of resistance to HPPD-inhibiting herbicides in A. palmeri was documented in Kansas (KS) and later in Nebraska (NE). The objective of this study was to investigate the mechansim of HPPD-inhibitor (mesotrione) resistance in A. palmeri. Dose response analysis revealed that this population (KSR) was 10-18 times more resistant than their sensitive counterparts (MSS or KSS)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443126/genome-wide-identification-characterization-and-expression-analysis-of-pht1-phosphate-transporters-in-wheat
#16
Wan Teng, Yan-Yan Zhao, Xue-Qiang Zhao, Xue He, Wen-Ying Ma, Yan Deng, Xin-Ping Chen, Yi-Ping Tong
The PHT1 family of phosphate (Pi) transporters mediates phosphorus (P) uptake and re-mobilization in plants. A genome-wide sequence analysis of PHT1 genes in wheat (Triticum aestivum) was conducted, and their expression locations and responses to P availability were further investigated. We cloned 21 TaPHT1 genes from the homologous alleles at TaPHT1.1 to 1.10 through screening a BAC library and amplifying genomic sequences. The TaPHT1 transporters were clustered into five branches in the phylogenetic tree of PHT1 proteins, and the TaPHT1 genes from a given branch shared high similarities in sequences, expression locations, and responses to P availability...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443119/parsing-the-regulatory-network-between-small-rnas-and-target-genes-in-ethylene-pathway-in-tomato
#17
Yunxiang Wang, Qing Wang, Lipu Gao, Benzhong Zhu, Zheng Ju, Yunbo Luo, Jinhua Zuo
Small RNAs are a class of short non-coding endogenous RNAs that play essential roles in many biological processes. Recent studies have reported that microRNAs (miRNAs) are also involved in ethylene signaling in plants. LeERF1 is one of the ethylene response factors (ERFs) in tomato that locates in the downstream of ethylene signal transduction pathway. To elucidate the intricate regulatory roles of small RNAs in ethylene signaling pathway in tomato, the deep sequencing and bioinformatics methods were combined to decipher the small RNAs landscape in wild and sense-/antisense-LeERF1 transgenic tomato fruits...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443114/tadir1-2-a-wheat-ortholog-of-lipid-transfer-protein-atdir1-contributes-to-negative-regulation-of-wheat-resistance-against-puccinia-striiformis-f-sp-tritici
#18
Soyed M Ahmed, Peng Liu, Qinghe Xue, Changan Ji, Tuo Qi, Jia Guo, Jun Guo, Zhensheng Kang
Very few LTPs have been shown to act through plasma membrane receptors or to be involved in the hypersensitive response (HR). DIR1, a new type of plant LTP interacts with lipids in vitro, moves to distant tissues during systemic acquired resistance (SAR) and therefore is thought to be involved in long-distance signaling during SAR. However, the exact functions of DIR1 orthologs in cereal species under biotic and abiotic stresses have not been thoroughly defined. In this study, a novel wheat ortholog of the DIR1 gene, TaDIR1-2, was isolated from Suwon11, a Chinese cultivar of wheat and functionally characterized...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443111/subcellular-compartmentalization-and-chemical-forms-of-lead-participate-in-lead-tolerance-of-robinia-pseudoacacia-l-with-funneliformis-mosseae
#19
Li Huang, Haoqiang Zhang, Yingying Song, Yurong Yang, Hui Chen, Ming Tang
The effect of arbuscular mycorrhizal fungus on the subcellular compartmentalization and chemical forms of lead (Pb) in Pb tolerance plants was assessed in a pot experiment in greenhouse conditions. We measured root colonization, plant growth, photosynthesis, subcellular compartmentalization and chemical forms of Pb in black locust (Robinia pseudoacacia L.) seedlings inoculated with Funneliformis mosseae isolate (BGC XJ01A) under a range of Pb treatments (0, 90, 900, and 3000 mg Pb kg(-1) soil). The majority of Pb was retained in the roots of R...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443107/virus-based-microrna-silencing-and-overexpressing-in-common-wheat-triticum-aestivum-l
#20
Chao Jian, Ran Han, Qing Chi, Shijuan Wang, Meng Ma, Xiangli Liu, Huixian Zhao
MicroRNAs (miRNAs) are a class of endogenous small non-coding RNAs that arise from large RNA precursors with a stem-loop structure and play important roles in plant development and responses to environmental stress. Although a hundred and nineteen wheat miRNAs have been identified and registered in the miRBase (Release 21.0, June, 2014; http://www.mirbase.org), the functional characterization of these miRNAs in wheat growth and development is lagging due to lack of effective techniques to investigate endogenous miRNA functions in wheat...
2017: Frontiers in Plant Science
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