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https://www.readbyqxmd.com/read/29338359/characterization-of-moso-bamboo-phyllostachys-edulis-dof-factors-in-floral-development-and-abiotic-stress-responses
#1
Zhanchao Cheng, Dan Hou, Jun Liu, Xiangyu Li, Lihua Xie, Yanjun Ma, Jian Gao
The Dof transcription factor (TF) family belongs to a class of plant-specific TFs, and is involved in plant growth, development, and response to abiotic stresses. However, there are only very limited reports on the characterization of Dof TFs in moso bamboo. In the present research, PheDofs showed specific expression profiles based on RNA-seq data analyses. The co-experssion network indicated that PheDof12, PheDof14 and PheDof16 might play vital roles during flower development. Cis-regulatory element analysis of these PheDof genes suggested diverse functions...
January 16, 2018: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/29338040/identification-and-expression-analyses-of-wrky-genes-reveal-their-involvement-in-growth-and-abiotic-stress-response-in-watermelon-citrullus-lanatus
#2
Xiaozhen Yang, Hao Li, Yongchao Yang, Yongqi Wang, Yanling Mo, Ruimin Zhang, Yong Zhang, Jianxiang Ma, Chunhua Wei, Xian Zhang
Despite identification of WRKY family genes in numerous plant species, a little is known about WRKY genes in watermelon, one of the most economically important fruit crops around the world. Here, we identified a total of 63 putative WRKY genes in watermelon and classified them into three major groups (I-III) and five subgroups (IIa-IIe) in group II. The structure analysis indicated that ClWRKYs with different WRKY domains or motifs may play different roles by regulating respective target genes. The expressions of ClWRKYs in different tissues indicate that they are involved in various tissue growth and development...
2018: PloS One
https://www.readbyqxmd.com/read/29331923/cold-regulated-protein-slcor413im1-confers-chilling-stress-tolerance-in-tomato-plants
#3
Xiaocui Ma, Chong Chen, Minmin Yang, Xinchun Dong, Wei Lv, Qingwei Meng
Chilling stress severely affects the growth, development and productivity of crops. Chloroplast, a photosynthesis site, is extremely sensitive to chilling stress. In this study, the functions of a gene encoding a cold-regulated protein (SlCOR413IM1) under chilling stress were investigated using sense and antisense transgenic tomatoes. Under chilling stress, SlCOR413IM1 expression was rapidly induced and the sense lines exhibited better growth state of seedlings and grown tomato plants. Overexpression of SlCOR413IM1 alleviated chilling-induced damage to the chloroplast membrane and structure, whereas suppression of SlCOR413IM1 aggravated the damage to chloroplast...
January 5, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29330047/an-intrinsically-disordered-domain-in-polaribacter-irgensii-kopri-22228-cspb-confers-extraordinary-freeze-tolerance
#4
Youn Hong Jung, Ji-Hyun Uh, Kyunghee Lee, Hana Im
Organisms living in extremely cold environments possess mechanisms to survive low temperatures. Among the known cold-induced genes, cold-shock proteins (Csps) are the most prominent. A csp-homologous gene, cspBPi, has been cloned from the Arctic bacterium Polaribacter irgensii KOPRI 22228, and overexpression of this gene greatly increased the freezing tolerance of its host. This protein consists of a unique N-terminal domain and a well conserved C-terminal cold shock domain. To elucidate the detailed mechanisms involved in the extraordinary freeze-tolerance conferred by CspBPi, we identified the responsible domain by mutational analysis...
January 9, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29329458/three-fatty-acyl-coenzyme-a-reductases-bdfar1-bdfar2-and-bdfar3-are-involved-in-primary-alcohols-biosynthesis-of-cuticular-wax-in-brachypodium-distachyon
#5
Yong Wang, Yulin Sun, Qiuye You, Wenqiao Luo, Cong Wang, Shuai Zhao, Guaiqiang Chai, Tingting Li, Xue Shi, Chunlian Li, Reinhard Jetter, Zhonghua Wang
Plant cuticular wax is a heterogeneous mixture of very-long-chain fatty acids (VLCFAs) and their derivatives. Primary alcohols are the dominant wax components throughout leaf development of Brachypodium distachyon (Brachypodium). However, the genes involved in primary alcohols biosynthesis have not been investigated and their exact biological function remains currently unclear in Brachypodium to date. Here, we monitored the leaf wax profile and crystal morphology during Brachypodium leaf morphogenesis, and isolated three Brachypodium fatty acyl-CoA reductase (FAR) genes, named BdFAR1, BdFAR2 and BdFAR3, then analyzed their biochemical activities, substrate specificities, expression patterns, subcellular localization, and stress induction...
January 9, 2018: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29327227/structural-characterization-of-a-novel-full-length-transcript-promoter-from-horseradish-latent-virus-hrlv-and-its-transcriptional-regulation-by-multiple-stress-responsive-transcription-factors
#6
Ahamed Khan, Ankita Shrestha, Kashyap Bhuyan, Indu B Maiti, Nrisingha Dey
The promoter fragment described in this study can be employed for strong transgene expression under both biotic and abiotic stress conditions. Plant-infecting Caulimoviruses have evolved multiple regulatory mechanisms to address various environmental stimuli during the course of evolution. One such mechanism involves the retention of discrete stress responsive cis-elements which are required for their survival and host-specificity. Here we describe the characterization of a novel Caulimoviral promoter isolated from Horseradish Latent Virus (HRLV) and its regulation by multiple stress responsive Transcription factors (TFs) namely DREB1, AREB1 and TGA1a...
January 11, 2018: Plant Molecular Biology
https://www.readbyqxmd.com/read/29325114/distribution-of-pines-in-the-iberian-peninsula-agrees-with-species-differences-in-foliage-frost-tolerance-not-with-vulnerability-to-freezing-induced-xylem-embolism
#7
Laura Fernández-Pérez, Pedro Villar-Salvador, Jordi Martínez-Vilalta, Andrei Toca, Miguel A Zavala
Drought and frosts are major determinants of plant functioning and distribution. Both stresses can cause xylem embolism and foliage damage. The objective of this study was to analyse if the distribution of six common pine species along latitudinal and altitudinal gradients in Europe is related to their interspecific differences in frost tolerance and to the physiological mechanisms underlying species-specific frost tolerance. We also evaluate if frost tolerance depends on plant water status. We studied survival to a range of freezing temperatures in 2-year-old plants and assessed the percentage loss of hydraulic conductivity (PLC) due xylem embolism formation and foliage damage determined by needle electrolyte leakage (EL) after a single frost cycle to -15 °C and over a range of predawn water potential (ψpd) values...
January 9, 2018: Tree Physiology
https://www.readbyqxmd.com/read/29316727/cloning-and-functional-analysis-of-phosphoethanolamine-methyltransferase-promoter-from-maize-zea-mays-l
#8
Gai-Li Niu, Wei Gou, Xiang-Long Han, Cheng Qin, Li-Xin Zhang, Abd El-Fatah Abomohra, Muhammad Ashraf
Betaine, a non-toxic osmoprotectant, is believed to accumulate considerably in plants under stress conditions to maintain the osmotic pressure and promote a variety of processes involved in growth and development. Phosphoethanolamine N-methyltransferase (PEAMT), a key enzyme for betaine synthesis, is reported to be regulated by its upstream promoter. In the present investigation, by using the transgenic approach, a 1048 bp long promoter region of ZmPEAMT gene from Zea mays was cloned and functionally characterized in tobacco...
January 8, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29304291/genome-wide-identification-and-expression-analysis-of-calax-and-capin-gene-families-in-pepper-capsicum-annuum-l-under-various-abiotic-stresses-and-hormones-treatments
#9
Chenghao Zhang, Wenqi Dong, Zong-An Huang, MyeongCheoul Cho, Qingcang Yu, Chuanyu Wu, Chenliang Yu
Auxin plays key roles in regulating plant growth and development as well as in responses to environmental stresses. The intercellular transport of auxin is mediated by four gene families, with the ATP-binding cassette family B (ABCB), the Auxin resistant1/ like (AUX1AUX/LAX) family, the pin-formed(PIN)families, and the PIN-LIKES (PILS) family. Here, the latest assembled pepper genome was used to characterise and analyse the CaLAX and CaPIN families. Genome-wide investigations into these families, including chromosomal distributions, phytogenic relationships and intron/exon structures, were performed...
January 5, 2018: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/29288589/nitric-oxide-modulates-actin-filament-organization-in-arabidopsis-thaliana-primary-root-cells-at-low-temperatures
#10
Svitlana H Plohovska, Yuliya A Krasylenko, Alla I Yemets
Cytoskeleton is gaining the increasing recognition as one of nitric oxide (NO) -downstream targets because of its involvement in plenty of NO-controlled processes in plants throughout the entire life cycle starting from seed germination to pollination as well as (a)biotic stress tolerance. It has been revealed that low temperature (+0.5°C) has an inhibitory effect on A. thaliana primary root growth and causes an anisotropic increase of epidermal cells diameter in elongation zone. Furthermore, actin filaments' organization of epidermal cells in different zones of primary roots is modulated by NO content...
December 30, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29287835/sugar-compartmentation-as-an-environmental-stress-adaptation-strategy-in-plants
#11
REVIEW
Kohji Yamada, Yuriko Osakabe
The sessile nature of plants has driven their evolution to cope flexibly with ever-changing surrounding environments. The development of stress tolerance traits is complex, and a broad range of cellular processes are involved. Recent studies have revealed that sugar transporters contribute to environmental stress tolerance in plants, suggesting that sugar flow is dynamically fluctuated towards optimization of cellular conditions in adverse environments. Here, we highlight sugar compartmentation mediated by sugar transporters as an adaptation strategy against biotic and abiotic stresses...
December 26, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29287583/cold-responsive-mirnas-and-their-target-genes-in-the-wild-eggplant-species-solanum-aculeatissimum
#12
Xu Yang, Fei Liu, Yu Zhang, Lu Wang, Yu-Fu Cheng
BACKGROUND: Low temperature is an important abiotic stress in plant growth and development, especially for thermophilic plants. Eggplants are thermophilic vegetables, although the molecular mechanism of their response to cold stress remains to be elucidated. MicroRNAs (miRNAs) are a class of endogenous small non-coding RNAs that play an essential role during plant development and stress responses. Although the role of many plant miRNAs in facilitating chilling tolerance has been verified, little is known about the mechanisms of eggplant chilling tolerance...
December 29, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29281056/phytomelatonin-a-universal-abiotic-stress-regulator
#13
Yanping Wang, Russel J Reiter, Zhulong Chan
Melatonin, a derivative of tryptophan, was detected in plant species in 1995. Melatonin has proven to be a diverse regulator during plant growth, development and stress responses. Recently, great progress has been made toward the detailed functions of melatonin in plant response to abiotic stress. Melatonin priming improved plant tolerance to cold, heat, salt and drought stresses through regulation of genes involved in DREB/CBF, HSF, SOS, and ABA pathways, respectively. As a free radicals scavenger, melatonin also directly detoxifies reactive oxygen species, thus alleviating membrane oxidation...
December 21, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29277026/the-cinnamyl-alcohol-dehydrogenase-family-in-flax-differentiation-during-plant-growth-and-under-stress-conditions
#14
Marta Preisner, Wioleta Wojtasik, Kamil Kostyn, Aleksandra Boba, Tadeusz Czuj, Jan Szopa, Anna Kulma
Cinnamyl alcohol dehydrogenase (CAD), which catalyzes the reduction of cinnamaldehydes to their alcohol derivatives, is represented by a large family of proteins. The aim of the study was to identify the CAD isoforms in flax (Linum usitatissimum L.) - LuCADs - and to determine their specificity to enhance knowledge of the mechanisms controlling cell wall lignification in flax under environmental stresses. On the basis of genome-wide analysis, we identified 15 isoforms (one in two copies) belonging to three major classes of the CAD protein family...
December 13, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29259104/transcriptomic-insights-into-phenological-development-and-cold-tolerance-of-wheat-grown-in-the-field
#15
Qiang Li, Brook Byrns, Mohamed Yousef Badawi, Abdoulaye Banire Diallo, Jean Danyluk, Fathey Sarhan, Debbie Laudencia-Chingcuanco, Jitao Zou, D Brian Fowler
Cold acclimation and winter survival in cereal species is determined by complicated environmentally regulated gene expression. However, studies investigating these complex cold responses are mostly conducted in controlled environments that only consider the responses to single environmental variables. In this study, we have comprehensively profiled global transcriptional responses in crowns of field grown spring and winter wheat genotypes and their near isogenic lines (NILs) with the VRN-A1 alleles swapped...
December 19, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29248419/mapping-kinase-regulation-of-ice1-in-freezing-tolerance
#16
Yukun Liu, Jun Zhou
Mitogen-activated protein kinase (MAPK) signaling has important roles in plant stress responses. Two recent reports showed how MAPK signaling regulates the response to cold stress through the Inducer of CBF expression 1 (ICE1)-CBF-cold-responsive (COR) transcriptional pathway in Arabidopsis thaliana, expanding our understanding of cold stress signaling and regulation in plants.
December 13, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/29247572/identifying-potential-molecular-factors-involved-in-bacillus-amyloliquefaciens-5113-mediated-abiotic-stress-tolerance-in-wheat
#17
Islam A Abd El-Daim, Sarosh Bejai, Ingela Fridborg, Johan Meijer
Abiotic stressors are main limiting factors for agricultural production around the world. Plant growth promoting bacteria have been successfully used to improve abiotic stress tolerance in several crops including wheat. However, the molecular changes involved in the improvement of stress management are poorly understood. The present investigation intended to address some molecular factors involved in bacterially induced plant abiotic stress responses by identifying some differentially expressed genes in wheat (Triticum aestivum) seedlings treated with the beneficial bacterium Bacillus amyloliquefaciens subsp...
December 16, 2017: Plant Biology
https://www.readbyqxmd.com/read/29240755/integrating-transcriptomics-and-metabolomics-to-characterize-the-regulation-of-epa-biosynthesis-in-response-to-cold-stress-in-seaweed-bangia-fuscopurpurea
#18
Min Cao, Dongmei Wang, Yunxiang Mao, Fanna Kong, Guiqi Bi, Qikun Xing, Zhen Weng
Bangia fuscopurpurea is a traditional mariculture crop having high nutritional value, eicosapntemacnioc acid (EPA) production, and protein content. As an intertidal species, it can tolerate drastic changes in abiotic factors such as temperature, hydration, and light radiation; however, genomic information on the evolutionary aspect and mechanism of EPA enrichment in B. fuscopurpurea and the role of EPA in cold tolerance in this species remain elusive. We conducted transcriptome profile analysis in B. fuscopurpurea to investigate the biological functions of genes associated with resistance to various environment factors...
2017: PloS One
https://www.readbyqxmd.com/read/29238352/overexpression-of-erf1-v-from-haynaldia-villosa-can-enhance-the-resistance-of-wheat-to-powdery-mildew-and-increase-the-tolerance-to-salt-and-drought-stresses
#19
Liping Xing, Zhaocan Di, Wenwu Yang, Jiaqian Liu, Meina Li, Xiaojuan Wang, Chaofan Cui, Xiaoyun Wang, Xiue Wang, Ruiqi Zhang, Jin Xiao, Aizhong Cao
The APETALA 2/Ethylene-responsive element binding factor (AP2/ERF) transcription factor gene family is widely involved in the biotic and abiotic stress regulation. Haynaldia villosa (VV, 2n = 14), a wild species of wheat, is a potential gene pool for wheat improvement. H. villosa confers high resistance to several wheat diseases and high tolerance to some abiotic stress. In this study, ERF1-V, an ethylene-responsive element-binding factor gene of the AP2/ERF transcription factor gene family from wild H. villosa, was cloned and characterized...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29234347/ectopic-expression-of-pumpkin-nac-transcription-factor-cmnac1-improves-multiple-abiotic-stress-tolerance-in-arabidopsis
#20
Haishun Cao, Li Wang, Muhammad A Nawaz, Mengliang Niu, Jingyu Sun, Junjun Xie, Qiusheng Kong, Yuan Huang, Fei Cheng, Zhilong Bie
Drought, cold and salinity are the major environmental stresses that limit agricultural productivity. NAC transcription factors regulate the stress response in plants. Pumpkin (Cucurbita moschata) is an important cucurbit vegetable crop and it has strong resistance to abiotic stress; however, the biological functions of stress-related NAC genes in this crop are largely unknown. This study reports the function of CmNAC1, a stress-responsive pumpkin NAC domain protein. The CmNAC1-GFP fusion protein was transiently expressed in tobacco leaves for subcellular localization analysis, and we found that CmNAC1 is localized in the nucleus...
2017: Frontiers in Plant Science
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