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https://www.readbyqxmd.com/read/28813005/identification-and-functional-divergence-analysis-of-wox-gene-family-in-paper-mulberry
#1
Feng Tang, Naizhi Chen, Meiling Zhao, Yucheng Wang, Ruiping He, Xianjun Peng, Shihua Shen
The WOX (WUSCHEL-related homeobox) is a plant-specific transcription factor involved in plant development and stress response. However, few studies have been reported on the WOX gene in woody plants. In this study, 10 BpWOX genes were isolated from paper mulberry by RACE-PCR and categorized into three clades through phylogenetic analysis, ancient, intermediate and WUS clade. Among them, five members had the transcriptional activity detected by yeast one-hybrid and seven were uniquely localized to the nucleus through green fluorescent protein (GFP) observation...
August 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28808654/genome-wide-identification-and-transcriptional-expression-analysis-of-cucumber-superoxide-dismutase-sod-family-in-response-to-various-abiotic-stresses
#2
Yong Zhou, Lifang Hu, Hao Wu, Lunwei Jiang, Shiqiang Liu
Superoxide dismutase (SOD) proteins are widely present in the plant kingdom and play important roles in different biological processes. However, little is known about the SOD genes in cucumber. In this study, night SOD genes were identified from cucumber (Cucumis sativus) using bioinformatics-based methods, including 5 Cu/ZnSODs, 3 FeSODs, and 1 MnSOD. Gene structure and motif analysis indicated that most of the SOD genes have relatively conserved exon/intron arrangement and motif composition. Phylogenetic analyses with SODs from cucumber and several other species revealed that these SOD proteins can be traced back to two ancestral SODs before the divergence of monocot and dicot plants...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28806972/overexpression-of-arabidopsis-p3b-increases-heat-and-low-temperature-stress-tolerance-in-transgenic-sweetpotato
#3
Chang Yoon Ji, Rong Jin, Zhen Xu, Ho Soo Kim, Chan-Ju Lee, Le Kang, So-Eun Kim, Hyeong-Un Lee, Joon Seol Lee, Chang Ho Kang, Yong Hun Chi, Sang Yeol Lee, Yiping Xie, Hongmin Li, Daifu Ma, Sang-Soo Kwak
BACKGROUND: Sweetpotato (Ipomoea batatas [L.] Lam) is suitable for growth on marginal lands due to its abiotic stress tolerance. However, severe environmental conditions including low temperature pose a serious threat to the productivity and expanded cultivation of this crop. In this study, we aimed to develop sweetpotato plants with enhanced tolerance to temperature stress. RESULTS: P3 proteins are plant-specific ribosomal P-proteins that act as both protein and RNA chaperones to increase heat and cold stress tolerance in Arabidopsis...
August 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28803325/an-endoplasmic-reticulum-localized-coffea-arabica-burp-domain-containing-protein-affects-the-response-of-transgenic-arabidopsis-plants-to-diverse-abiotic-stresses
#4
Sy Nguyen Dinh, Hunseung Kang
The Coffea arabica BURP domain-containing gene plays an important role in the response of transgenic Arabidopsis plants to abiotic stresses via regulating the level of diverse proteins. Although the functions of plant-specific BURP domain-containing proteins (BDP) have been determined for a few plants, their roles in the growth, development, and stress responses of most plant species, including coffee plant (Coffea arabica), are largely unknown. In this study, the function of a C. arabica BDP, designated CaBDP1, was investigated in transgenic Arabidopsis plants...
August 12, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28800123/differential-proteomic-analysis-reveals-the-effect-of-calcium-on-malus-baccata-borkh-leaves-under-temperature-stress
#5
Lijie Li, Hong Su, Huaiyu Ma, Deguo Lyu
In the cool apple-producing areas of northern China, air temperature during early spring changes in a rapid and dramatic manner, which affects the growth and development of apple trees at the early stage of the growing season. Previous studies have shown that the treatment of calcium can increase the cold tolerance of Malus baccata Borkh., a widely-used rootstock apple tree in northern China. To better understand the physiological function of calcium in the response of M. baccata to temperature stress, we analyzed the effect of calcium treatment (2% CaCl₂) on M...
August 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28793366/cadmium-induced-melatonin-synthesis-in-rice-requires-light-hydrogen-peroxide-and-nitric-oxide-key-regulatory-roles-for-tryptophan-decarboxylase-and-caffeic-acid-o-methyltransferase
#6
Kyungjin Lee, Geun-Hee Choi, Kyoungwhan Back
In plants, melatonin production is induced by stimuli such as cold and drought, and cadmium (Cd) is the best elicitor of melatonin production in rice. However, the mechanism by which Cd induces melatonin synthesis in plants remains unknown. We challenged rice seedlings with Cd under different light conditions and found that continuous light produced the highest levels of melatonin, while continuous dark failed to induce melatonin production. Transcriptional and translational induction of tryptophan decarboxylase contributed to the light induction of melatonin during Cd treatment, whereas the protein level of light-induced caffeic acid O-methyltransferase (COMT) was decreased by Cd treatment...
August 9, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28793212/intrinsically-disordered-stress-protein-cor15a-resides-at-the-membrane-surface-during-dehydration
#7
Anne Bremer, Ben Kent, Thomas Hauß, Anja Thalhammer, Nageshwar R Yepuri, Tamim A Darwish, Christopher J Garvey, Gary Bryant, Dirk K Hincha
Plants from temperate climate zones are able to increase their freezing tolerance during exposure to low, above-zero temperatures in a process termed cold acclimation. During this process, several cold-regulated (COR) proteins are accumulated in the cells. One of them is COR15A, a small, intrinsically disordered protein that contributes to leaf freezing tolerance by stabilizing cellular membranes. The isolated protein folds into amphipathic α-helices in response to increased crowding conditions, such as high concentrations of glycerol...
August 8, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28792470/differential-mechanisms-of-photosynthetic-acclimation-to-light-and-low-temperature-in-arabidopsis-and-the-extremophile-eutrema-salsugineum
#8
Nityananda Khanal, Geoffrey E Bray, Anna Grisnich, Barbara A Moffatt, Gordon R Gray
Photosynthetic organisms are able to sense energy imbalances brought about by the overexcitation of photosystem II (PSII) through the redox state of the photosynthetic electron transport chain, estimated as the chlorophyll fluorescence parameter 1-qL, also known as PSII excitation pressure. Plants employ a wide array of photoprotective processes that modulate photosynthesis to correct these energy imbalances. Low temperature and light are well established in their ability to modulate PSII excitation pressure...
August 9, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28791346/phylogenetic-and-specific-sequence-analysis-of-four-paralogs-in-insect-aquaporins
#9
Wei Xia, Panwen Zhao, Zhongquan Yi, Yubao Cui
Aquaporins (AQP) are proteins that form channels to facilitate the movement of water across cell membranes in plants, bacteria and animals. Insect AQPs are indispensable for cellular water management under stress, including dehydration and cold. To better understand the biological significance of molecular evolution of gene sequences, followed by structural and functional specialization, the present study used ClustalX2.1, MEGA7.0, Jalview and Mesquite software to build an insect AQP phylogenetic tree and visualize the evolutionary associations among insect AQPs...
August 2, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28790462/itraq-and-virus-induced-gene-silencing-revealed-three-proteins-involved-in-cold-response-in-bread-wheat
#10
Ning Zhang, Lingran Zhang, Lei Zhao, Yan Ren, Dangqun Cui, Jianhui Chen, Yongyan Wang, Pengbo Yu, Feng Chen
By comparing the differentially accumulated proteins from the derivatives (UC 1110 × PI 610750) in the F10 recombinant inbred line population which differed in cold-tolerance, altogether 223 proteins with significantly altered abundance were identified. The comparison of 10 cold-sensitive descendant lines with 10 cold-tolerant descendant lines identified 140 proteins that showed decreased protein abundance, such as the components of the photosynthesis apparatus and cell-wall metabolism. The identified proteins were classified into the following main groups: protein metabolism, stress/defense, carbohydrate metabolism, lipid metabolism, sulfur metabolism, nitrogen metabolism, RNA metabolism, energy production, cell-wall metabolism, membrane and transportation, and signal transduction...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28776104/heat-or-cold-priming-induced-cross-tolerance-to-abiotic-stresses-in-plants-key-regulators-and-possible-mechanisms
#11
REVIEW
Mohammad Anwar Hossain, Zhong-Guang Li, Tahsina Sharmin Hoque, David J Burritt, Masayuki Fujita, Sergi Munné-Bosch
Plants growing under field conditions are constantly exposed, either simultaneously or sequentially, to more than one abiotic stress factor. Plants have evolved sophisticated sensory systems to perceive a number of stress signals that allow them to activate the most adequate response to grow and survive in a given environment. Recently, cross-stress tolerance (i.e. tolerance to a second, strong stress after a different type of mild primary stress) has gained attention as a potential means of producing stress-resistant crops to aid with global food security...
August 4, 2017: Protoplasma
https://www.readbyqxmd.com/read/28772623/influence-of-the-manufacturing-process-on-defects-in-the-galvanized-coating-of-high-carbon-steel-wires
#12
Marcello Gelfi, Luigi Solazzi, Sandro Poli
This study is a detailed failure analysis of galvanized high carbon steel wires, which developed coating cracks during the torsion test performed as a quality control at the end of the manufacturing process. Careful visual inspections showed that the cracks are already present in the coating before the torsion test. In order to explain the origin of these cracks, systematic metallographic investigations were performed by means of optical and scanning electron microscope on both the wires and the rods that have been cold drawn to produce the wire...
March 6, 2017: Materials
https://www.readbyqxmd.com/read/28771553/the-u-box-family-genes-in-medicago-truncatula-key-elements-in-response-to-salt-cold-and-drought-stresses
#13
Jianbo Song, Xiaowei Mo, Haiqi Yang, Luming Yue, Jun Song, Beixin Mo
The ubiquitination pathway regulates growth, development, and stress responses in plants, and the U-box protein family of ubiquitin ligases has important roles in this pathway. Here, 64 putative U-box proteins were identified in the Medicago truncatula genome. In addition to the conserved U-box motif, other functional domains, such as the ARM, kinase, KAP, and WD40 domains, were also detected. Phylogenetic analysis of the M. truncatula U-box proteins grouped them into six subfamilies, and chromosomal mapping and synteny analyses indicated that tandem and segmental duplications may have contributed to the expansion and evolution of the U-box gene family in this species...
2017: PloS One
https://www.readbyqxmd.com/read/28769962/global-gene-expression-analysis-reveals-crosstalk-between-response-mechanisms-to-cold-and-drought-stresses-in-cassava-seedlings
#14
Shuxia Li, Xiang Yu, Zhihao Cheng, Xiaoling Yu, Mengbin Ruan, Wenbin Li, Ming Peng
Abiotic stress negatively impacts cassava (Manihot esculenta) growth and yield. Several molecular mechanisms of plant response to cold and drought have been identified and described in the literature, however, little is known about the crosstalk of the responses of cassava to these two stresses. To elucidate this question, transcriptome analysis of cassava seedlings under cold or PEG-simulated drought stress treatment was performed. Our results showed that 6103 and 7462 transcripts were significantly regulated by cold and drought stress, respectively...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28767140/comparative-proteomic-analysis-provides-novel-insights-into-chlorophyll-biosynthesis-in-celery-under-temperature-stress
#15
Wei Huang, Hong-Yu Ma, Ying Huang, Yan Li, Guang-Long Wang, Qian Jiang, Feng Wang, Ai-Sheng Xiong
Chlorophyll (Chl) is essential for light harvesting and energy transduction in photosynthesis. A proper amount of Chl within plant cells is important to celery (Apium graveolens L.) yield and quality. Temperature stress is an influential abiotic stress affecting Chl biosynthesis and plant growth. There are limited proteomic studies regarding Chl accumulation under temperature stress in celery leaves. Here, the proteins from celery leaves under different temperature treatments (4 °C, 25 °C and 38 °C) were analyzed using a proteomic approach...
August 2, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28753977/in-vitro-preservation-of-transgenic-tomato-solanum-lycopersicum-l-plants-overexpressing-the-stress-related-slareb1-transcription-factor
#16
Ayed M Al-Abdallat, Rida A Shibli, Muhanad W Akash, Manar Rabbaa, Tamara Al-Qudah
In vitro preservation of transgenic tomato lines overexpressing the stress-responsive transcription factor SlAREB1 was studied by using slow growth and cryopreservation techniques. Slow growth preservation was performed by using different concentrations of sucrose (0, 100, 200, 300 mm) and abscisic acid (0, 4, 8, 12 μm) in Murashige and Skoog (MS) media, while cryopreservation was conducted by using encapsulation dehydration, V-cryoplates and seeds. Significant differences were observed between tested lines grown on MS media supplemented with 200 mm sucrose where transgenic lines overexpressing SlAREB1 showed improved growth when compared with negative control...
July 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28751901/functional-characterization-of-tasnrk2-8-promoter-in-response-to-abiotic-stresses-by-deletion-analysis-in-transgenic-arabidopsis
#17
Hongying Zhang, Ruilian Jing, Xinguo Mao
Drought, salinity, and cold are the major factors limiting wheat quality and productivity; it is thus highly desirable to characterize the abiotic-stress-inducible promoters suitable for the genetic improvement of plant resistance. The sucrose non-fermenting 1-related protein kinase 2 (SnRK2) family genes show distinct regulatory properties in response to abiotic stresses. The present study characterized the approximately 3000-bp upstream sequence (the 313 bp upstream of the ATG was the transcription start site) of the Triticum aestivum TaSnRK2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28751687/characterization-and-expression-analysis-of-the-wrky-gene-family-in-moso-bamboo
#18
Long Li, Shaohua Mu, Zhanchao Cheng, Yuanwen Cheng, Ying Zhang, Ying Miao, Chenglin Hou, Xueping Li, Jian Gao
The WRKY family of transcription factors (TFs) is one of the ten largest families of TFs in higher plants and has been implicated in multiple biological processes. Here, we identified 121 WRKY TFs in moso bamboo, including five novel members that were not annotated in the Phyllostachys edulis genomic database. Estimation of the divergence time of paralogous gene pairs revealed an important role of the recent whole-genome duplication in the expansion of the WRKY family. Expression analysis based on quantitative reverse-transcription polymerase chain reaction (qRT-PCR) data revealed that a large number of PheWRKY genes varied significantly under cold or drought stress treatments, which could be defined as abiotic stress-responsive genes...
July 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28744295/antarctic-moss-multiprotein-bridging-factor-1c-overexpression-in-arabidopsis-resulted-in-enhanced-tolerance-to-salt-stress
#19
Hemasundar Alavilli, Hyoungseok Lee, Mira Park, Byeong-Ha Lee
Polytrichastrum alpinum is one of the moss species that survives extreme conditions in the Antarctic. In order to explore the functional benefits of moss genetic resources, P. alpinum multiprotein-bridging factor 1c gene (PaMBF1c) was isolated and characterized. The deduced amino acid sequence of PaMBF1c comprises of a multiprotein-bridging factor (MBF1) domain and a helix-turn-helix (HTH) domain. PaMBF1c expression was induced by different abiotic stresses in P. alpinum, implying its roles in stress responses...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28743951/genome-wide-analysis-and-expression-divergence-of-the-trihelix-family-in-brassica-rapa-insight-into-the-evolutionary-patterns-in-plants
#20
Wenli Wang, Peng Wu, TongKong Liu, Haibo Ren, Ying Li, Xilin Hou
Trihelix gene family is an important transcription factor (TF) family involved in plants' growth and development. This extensive study of trihelix genes from Arabidopsis thaliana to Brassica rapa could shed light on the evolution in plants and support crop breeding. In this study, a total of 52 trihelix genes were identified in B.rapa. Whole-genome annotation, molecular-evolution and gene-expression analyses of all known trihelix genes were conducted. By statistics of the number of trihelix genes in each species, we found the expansion of trihelix gene family started with angiosperm evolution...
July 25, 2017: Scientific Reports
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