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https://www.readbyqxmd.com/read/28224001/overexpression-of-prunus-mume-dehydrin-genes-in-tobacco-enhances-tolerance-to-cold-and-drought
#1
Fei Bao, Dongliang Du, Yang An, Weiru Yang, Jia Wang, Tangren Cheng, Qixiang Zhang
Dehydrins, known as group 2 or D-11 family late-embryogenesis-abundant (LEA) proteins, play important roles in plant growth and stress tolerance. Six dehydrin genes were previously identified from the genome of Prunus mume. In this study, five of them (PmLEA8, PmLEA10, PmLEA19, PmLEA20, and PmLEA29) were cloned from cold-resistant P. mume 'Beijingyudie'. Real-time RT-PCR analysis indicated that all these genes could be up-regulated by one or several treatments (ABA, SA, low temperature, high temperature, PEG, and NaCl treatments)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28223998/rna-seq-analysis-of-cold-and-drought-responsive-transcriptomes-of-zea-mays-ssp-mexicana-l
#2
Xiang Lu, Xuan Zhou, Yu Cao, Meixue Zhou, David McNeil, Shan Liang, Chengwei Yang
The annual Zea mays ssp. mexicana L. is a member of teosinte, a wild relative of the Zea mays spp. mays L. This subspecies has strong growth and regeneration ability, high tiller numbers, high protein and lysine content as well as resistance to many fungal diseases, and it can be effectively used in maize improvement. In this study, we reported a Zea mays ssp. mexicana L. transcriptome by merging data from untreated control (CK), cold (4°C) and drought (PEG2000, 20%) treated plant samples. A total of 251,145 transcripts (N50 = 1,269 bp) and 184,280 unigenes (N50 = 923 bp) were predicted, which code for homologs of near 47% of the published maize proteome...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28223714/comparative-physiological-and-transcriptomic-analyses-provide-integrated-insight-into-osmotic-cold-and-salt-stress-tolerance-mechanisms-in-banana
#3
Wei Hu, Zehong Ding, Weiwei Tie, Yan Yan, Yang Liu, Chunlai Wu, Juhua Liu, Jiashui Wang, Ming Peng, Biyu Xu, Zhiqiang Jin
The growth, development, and production of banana plants are constrained by multiple abiotic stressors. However, it remains elusive for the tolerance mechanisms of banana responding to multiple abiotic stresses. In this study, we found that Fen Jiao (FJ) was more tolerant to osmotic, cold, and salt stresses than BaXi Jiao (BX) by phenotypic and physiological analyses. Comparative transcriptomic analyses highlighted stress tolerance genes that either specifically regulated in FJ or changed more than twofold in FJ relative to BX after treatments...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28219335/stress-responsive-pathways-and-small-rna-changes-distinguish-variable-developmental-phenotypes-caused-by-msh1-loss
#4
Mon-Ray Shao, Sunil Kumar Kenchanmane Raju, John D Laurie, Robersy Sanchez, Sally A Mackenzie
BACKGROUND: Proper regulation of nuclear-encoded, organelle-targeted genes is crucial for plastid and mitochondrial function. Among these genes, MutS Homolog 1 (MSH1) is notable for generating an assortment of mutant phenotypes with varying degrees of penetrance and pleiotropy. Stronger phenotypes have been connected to stress tolerance and epigenetic changes, and in Arabidopsis T-DNA mutants, two generations of homozygosity with the msh1 insertion are required before severe phenotypes begin to emerge...
February 20, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28217005/chromatin-based-epigenetic-regulation-of-plant-abiotic-stress-response
#5
Garima Pandey, Namisha Sharma, Pranav Pankaj Sahu, Manoj Prasad
Plants are continuously exposed to various abiotic and biotic factors limiting their growth and reproduction. In response, they need various sophisticated ways to adapt to adverse environmental conditions without compromising their proper development, reproductive success and eventually survival. This requires an intricate network to regulate gene expression at transcriptional and post-transcriptional levels, including epigenetic switches. Changes in chromatin modifications such as DNA and histone methylation have been observed in plants upon exposure to several abiotic stresses...
December 2016: Current Genomics
https://www.readbyqxmd.com/read/28198821/the-microbe-secreted-isopeptide-poly-%C3%AE-glutamic-acid-induces-stress-tolerance-in-brassica-napus-l-seedlings-by-activating-crosstalk-between-h2o2-and-ca-2
#6
Peng Lei, Xiao Pang, Xiaohai Feng, Sha Li, Bo Chi, Rui Wang, Zongqi Xu, Hong Xu
Poly-γ-glutamic acid (γ-PGA) is a microbe-secreted isopeptide that has been shown to promote growth and enhance stress tolerance in crops. However, its site of action and downstream signaling pathways are still unknown. In this study, we investigated γ-PGA-induced tolerance to salt and cold stresses in Brassica napus L. seedlings. Fluorescent labeling of γ-PGA was used to locate the site of its activity in root protoplasts. The relationship between γ-PGA-induced stress tolerance and two signal molecules, H2O2 and Ca(2+), as well as the γ-PGA-elicited signaling pathway at the whole plant level, were explored...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28193162/genome-wide-characterization-of-jasmonate-zim-domain-transcription-repressors-in-wheat-triticum-aestivum-l
#7
Yukun Wang, Linyi Qiao, Jianfang Bai, Peng Wang, Wenjing Duan, Shaohua Yuan, Guoliang Yuan, Fengting Zhang, Liping Zhang, Changping Zhao
BACKGROUND: The JASMONATE-ZIM DOMAIN (JAZ) repressor family proteins are jasmonate co-receptors and transcriptional repressor in jasmonic acid (JA) signaling pathway, and they play important roles in regulating the growth and development of plants. Recently, more and more researches on JAZ gene family are reported in many plants. Although the genome sequencing of common wheat (Triticum aestivum L.) and its relatives is complete, our knowledge about this gene family remains vacant. RESULTS: Fourteen JAZ genes were identified in the wheat genome...
February 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28189052/a-novel-zea-mays-ssp-mexicana-l-myc-type-ice-like-transcription-factor-gene-zmmice1-enhances-freezing-tolerance-in-transgenic-arabidopsis-thaliana
#8
Xiang Lu, Lei Yang, Mengyuan Yu, Jianbin Lai, Chao Wang, David McNeil, Meixue Zhou, Chengwei Yang
The annual Zea mays ssp. mexicana L., a member of the teosinte group, is a close wild relative of maize and thus can be effectively used in maize improvement. In this study, an ICE-like gene, ZmmICE1, was isolated from a cDNA library of RNA-Seq from cold-treated seedling tissues of Zea mays ssp. mexicana L. The deduced protein of ZmmICE1 contains a highly conserved basic helix-loop-helix (bHLH) domain and C-terminal region of ICE-like proteins. The ZmmICE1 protein localizes to the nucleus and shows sumoylation when expressed in an Escherichia coli reconstitution system...
February 5, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28188666/natural-variation-for-gene-expression-responses-to-abiotic-stress-in-maize
#9
Amanda J Waters, Irina Makarevitch, Jaclyn Noshay, Liana T Burghardt, Candice N Hirsch, Cory D Hirsch, Nathan M Springer
Plants respond to abiotic stress through a variety of physiological, biochemical, and transcriptional mechanisms. Many genes exhibit altered levels of expression in response to abiotic stress, which requires concerted action of both cis- and trans-regulatory features. In order to study the variability in transcriptome response to abiotic stress, RNA sequencing was performed using 14-day-old maize seedlings of inbreds B73, Mo17, Oh43, PH207 and B37 under control, cold and heat conditions. Large numbers of genes that responded differentially to stress between parental inbred lines were identified...
February 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28174577/a-novel-rna-binding-protein-involves-aba-signaling-by-post-transcriptionally-repressing-abi2
#10
Jianwen Xu, Yihan Chen, Luofeng Qian, Rong Mu, Xi Yuan, Huimin Fang, Xi Huang, Enshun Xu, Hongsheng Zhang, Ji Huang
The Stress Associated RNA-binding protein 1 (SRP1) repressed by ABA, salt and cold encodes a C2C2-type zinc finger protein in Arabidopsis. The knock-out mutation in srp1 reduced the sensitivity of seed to ABA and salt stress during germination and post-germinative growth stages. In contrast, SRP1-overexpressing seedlings were more sensitive to ABA and salt compared to wild type plants. In the presence of ABA, the transcript levels of ABA signaling and germination-related genes including ABI3. ABI5. EM1 and EM6 were less induced in srp1 compared to WT...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28173633/a-novel-functional-gene-associated-with-cold-tolerance-at-the-seedling-stage-in-rice
#11
Junliang Zhao, Shaohong Zhang, Jingfang Dong, Tifeng Yang, Xingxue Mao, Qing Liu, Xiaofei Wang, Bin Liu
Identification and cloning of cold-tolerant genes that can stably express under different cold environments are crucial for molecular rice breeding for cold tolerance. In the previous study, we identified a cold-tolerant QTL at the seedling stage, qCTS-9 which could be detected under different cold environments using a recombinant inbred line (RIL) population derived from a cold-tolerant variety Lijiangxintuanheigu (LTH) and a cold-sensitive variety Shanhuangzhan 2 (SHZ-2). In this study, eight candidate genes within the qCTS-9 interval were identified through integrated analysis of QTL mapping with genome-wide differential expression profiling of LTH...
February 7, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28171833/assessing-chilling-and-drought-tolerance-of-different-plant-genera-on-extensive-green-roofs-in-an-arid-climate-region-in-iran
#12
Navid Vahdati, Ali Tehranifar, Fatemeh Kazemi
The harsh and stressful growing environment of extensive green roofs especially in arid environments allows a limited range of plant species to survive. Therefore, achieving plantings to survive in such conditions is a significant challenge. This paper describes an experiment investigating plant selections for extensive green roofs based on chilling (cold season) and drought (warm season) conditions of Iran. Nine species were selected from the three major taxonomic and functional plant groups that are commonly used on extensive green roofs including grasses, groundcovers and sedums...
February 4, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28169358/physiological-and-transcriptomic-analyses-reveal-a-response-mechanism-to-cold-stress-in-santalum-album-l-leaves
#13
Xinhua Zhang, Jaime A Teixeira da Silva, Meiyun Niu, Mingzhi Li, Chunmei He, Jinhui Zhao, Songjun Zeng, Jun Duan, Guohua Ma
Santalum album L. (Indian sandalwood) is an economically important plant species because of its ability to produce highly valued perfume oils. Little is known about the mechanisms by which S. album adapts to low temperatures. In this study, we obtained 100,445,724 raw reads by paired-end sequencing from S. album leaves. Physiological and transcriptomic changes in sandalwood seedlings exposed to 4 °C for 0-48 h were characterized. Cold stress induced the accumulation of malondialdehyde, proline and soluble carbohydrates, and increased the levels of antioxidants...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28167030/cloning-and-characterization-of-sidhn-a-novel-dehydrin-gene-from-saussurea-involucrata-kar-et-kir-that-enhances-cold-and-drought-tolerance-in-tobacco
#14
Xinyong Guo, Li Zhang, Jianbo Zhu, Hongling Liu, Aiying Wang
Saussurea involucrata Kar. et Kir. is a hardy, dicotyledonous plant featured by strong tolerance to severe stress conditions. In a previous study, we created a cDNA library to characterize genetic factors associated with the cold acclimation response of S. involucrata. The full-length cDNA of one dehydrin-like gene, SiDHN, was obtained by RT-PCR and the SiDHN gene was further characterized in this study. The full-length SiDHN cDNA consists of 703 base pairs (bp) with a 333bp open reading frame encoding a protein comprising 111 amino acid residues...
March 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28163713/homologous-u-box-e3-ubiquitin-ligases-ospub2-and-ospub3-are-involved-in-the-positive-regulation-of-low-temperature-stress-response-in-rice-oryza-sativa-l
#15
Mi Young Byun, Li Hua Cui, Tae Kyung Oh, Ye-Jin Jung, Andosung Lee, Ki Youl Park, Bin Goo Kang, Woo Taek Kim
Rice U-box E3 Ub ligases (OsPUBs) are implicated in biotic stress responses. However, their cellular roles in response to abiotic stress are poorly understood. In this study, we performed functional analyses of two homologous OsPUB2 and OsPUB3 in response to cold stress (4°C). OsPUB2 was up-regulated by high salinity, drought, and cold, whereas OsPUB3 was constitutively expressed. A subcellular localization assay revealed that OsPUB2 and OsPUB3 were localized to the exocyst positive organelle (EXPO)-like punctate structures...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28143411/genome-wide-analysis-of-the-aaap-gene-family-in-moso-bamboo-phyllostachys-edulis
#16
Huanlong Liu, Min Wu, Dongyue Zhu, Feng Pan, Yujiao Wang, Yue Wang, Yan Xiang
BACKGROUND: Members of the amino acid/auxin permease (AAAP) gene family play indispensable roles in various plant metabolism and biosynthesis processes. Comprehensive analysis of AAAP genes has been conducted in Arabidopsis, rice, maize and poplar, but has not been reported from moso bamboo. Phylogenetics, evolutionary patterns and further expression profiles analysis of the AAAP gene family in moso bamboo (Phyllostachys edulis) will increase our understanding of this important gene family...
January 31, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28143399/expansion-and-stress-responses-of-the-ap2-erebp-superfamily-in-cotton
#17
Chunxiao Liu, Tianzhen Zhang
BACKGROUND: The allotetraploid cotton originated from one hybridization event between an extant progenitor of Gosssypium herbaceum (A1) or G. arboreum (A2) and another progenitor, G. raimondii Ulbrich (D5) 1-1.5 million years ago (Mya). The APETALA2/ethylene-responsive element binding protein (AP2/EREBP) transcription factors constitute one of the largest and most conserved gene families in plants. They are characterized by their AP2 domain, which comprises 60-70 amino acids, and are classified into four main subfamilies: the APETALA2 (AP2), Related to ABI3/VP1 (RAV), Dehydration-Responsive Element Binding protein (DREB) and Ethylene-Responsive Factor (ERF) subfamilies...
January 31, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28138902/ectopic-expression-of-plant-rna-chaperone-offering-multiple-stress-tolerance-in-e-coli
#18
Bushra Jabeen, S M Saqlan Naqvi, Tariq Mahmood, Tasawar Sultana, Madiha Arif, Fariha Khan
Members of the plant glycine-rich RNA-binding proteins (GR-RBPs) family have been reported in flowering, development, circadian rhythms, biotic and abiotic stresses. Particularly, GR-RBPs are reported to function as RNA chaperones, promoting growth and acclimation during cold shock. It is indispensable to further question the efficacy and mechanism of GR-RBPs under various environmental strains. Monitoring the expression of stress-regulated proteins under stress conditions has been a beneficial strategy to study their functional roles...
January 30, 2017: Molecular Biotechnology
https://www.readbyqxmd.com/read/28127547/characterization-and-expression-analysis-of-common-bean-histone-deacetylase-6-during-development-and-cold-stress-response
#19
Rita Kusi-Appiah Hayford, Ayalew Ligaba-Osena, Mayavan Subramani, Adrianne Brown, Kalpalatha Melmaiee, Khwaja Hossain, Venu Kal Kalavacharla
Histone deacetylases (HDACs) are important regulators of gene transcription thus controlling multiple cellular processes. Despite its essential role in plants, HDA6 is yet to be validated in common bean. In this study, we show that HDA6 is involved in plant development and stress response. Differential expression of HDA6 was determined in various tissues and the expression was seen to be upregulated with plant age (seedling < flowering < maturity). Higher expression was observed in flowers and pods than in stem, leaf, and root...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28125637/functional-characterization-of-cotton-gamyb62l-a-novel-r2r3-tf-in-transgenic-arabidopsis
#20
Hamama Islam Butt, Zhaoen Yang, Eryong Chen, Ge Zhao, Qian Gong, Zuoren Yang, Xueyan Zhang, Fuguang Li
Drought stress can trigger the production of ABA in plants, in response to adverse conditions, which induces the transcript of stress-related marker genes. The R2R3 MYB TFs are implicated in regulation of various plants developmental, metabolic and multiple environmental stress responses. Here, a R2R3-MYB cloned gene, GaMYB62L, was transformed in Arabidopsis and was functionally characterized. The GaMYB62L protein contains two SANT domains with a conserved R2R3 imperfect repeats. The GaMYB62L cDNA is 1,017 bp with a CDS of 879, encodes a 292-residue polypeptide with MW of 38...
2017: PloS One
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