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abiotic stress

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https://www.readbyqxmd.com/read/28549197/analysis-of-protein-profile-of-tomato-root-infected-with-fusarium-oxysporum-f-sp-lycopersici
#1
T D Silva, C M A Almeida, C B Malafaia, L M S Oliveira, M V Silva, M T S Correia
Fusarium wilt caused by Fusarium oxysporum f. sp lycopersici (Fol) is one of the main diseases affecting tomatoes. The BHRS 2,3 genotype of tomato is, however, resistant to this disease. A proteomic approach was used to understand the defense mechanisms of this genotype using the tomato root, the first tissue that interacts with the fungus, as a target. Protein was extracted and separated by two-dimensional electrophoresis followed by staining with Coomassie brilliant blue. The proteins were identified by MALDI-TOF/TOF mass spectrometry...
May 25, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28548656/nlr-locus-mediated-trade-off-between-abiotic-and-biotic-stress-adaptation-in-arabidopsis
#2
Hirotaka Ariga, Taku Katori, Takashi Tsuchimatsu, Taishi Hirase, Yuri Tajima, Jane E Parker, Rubén Alcázar, Maarten Koornneef, Owen Hoekenga, Alexander E Lipka, Michael A Gore, Hitoshi Sakakibara, Mikiko Kojima, Yuriko Kobayashi, Satoshi Iuchi, Masatomo Kobayashi, Kazuo Shinozaki, Yoichi Sakata, Takahisa Hayashi, Yusuke Saijo, Teruaki Taji
Osmotic stress caused by drought, salt or cold decreases plant fitness. Acquired stress tolerance defines the ability of plants to withstand stress following an initial exposure(1). We found previously that acquired osmotolerance after salt stress is widespread among Arabidopsis thaliana accessions(2). Here, we identify ACQOS as the locus responsible for ACQUIRED OSMOTOLERANCE. Of its five haplotypes, only plants carrying group 1 ACQOS are impaired in acquired osmotolerance. ACQOS is identical to VICTR, encoding a nucleotide-binding leucine-rich repeat (NLR) protein(3)...
May 26, 2017: Nature Plants
https://www.readbyqxmd.com/read/28547583/genome-wide-identification-and-characterization-of-phospholipase-c-gene-family-in-cotton-gossypium-spp
#3
Bing Zhang, Yanmei Wang, Jin-Yuan Liu
Phospholipase C (PLC) are important regulatory enzymes involved in several lipid and Ca(2+)-dependent signaling pathways. Previous studies have elucidated the versatile roles of PLC genes in growth, development and stress responses of many plants, however, the systematic analyses of PLC genes in the important fiber-producing plant, cotton, are still deficient. In this study, through genome-wide survey, we identified twelve phosphatidylinositol-specific PLC (PI-PLC) and nine non-specific PLC (NPC) genes in the allotetraploid upland cotton Gossypium hirsutum and nine PI-PLC and six NPC genes in two diploid cotton G...
May 19, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28546092/proteomics-in-commercial-crops-an-overview
#4
Boon Chin Tan, Yin Sze Lim, Su-Ee Lau
Proteomics is a rapidly growing area of biological research that is positively affecting plant science. Recent advances in proteomic technology, such as mass spectrometry, can now identify a broad range of proteins and monitor their modulation during plant growth and development, as well as during responses to abiotic and biotic stresses. In this review, we highlight recent proteomic studies of commercial crops and discuss the advances in understanding of the proteomes of these crops. We anticipate that proteomic-based research will continue to expand and contribute to crop improvement...
May 22, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28545114/different-adaptation-strategies-of-two-citrus-scion-rootstock-combinations-in-response-to-drought-stress
#5
Joadson Dutra de Souza, Edson Mario de Andrade Silva, Mauricio Antônio Coelho Filho, Raphaël Morillon, Diego Bonatto, Fabienne Micheli, Abelmon da Silva Gesteira
Scion/rootstock interaction is important for plant development and for breeding programs. In this context, polyploid rootstocks presented several advantages, mainly in relation to biotic and abiotic stresses. Here we analyzed the response to drought of two different scion/rootstock combinations presenting different polyploidy: the diploid (2x) and autotetraploid (4x) Rangpur lime (Citrus limonia, Osbeck) rootstocks grafted with 2x Valencia Delta sweet orange (Citrus sinensis) scions, named V/2xRL and V/4xRL, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28544912/parallel-gene-selection-and-dynamic-ensemble-pruning-based-on-affinity-propagation
#6
Jun Meng, Jing Zhang, Yu-Shi Luan, Xin-Yu He, Li-Shuang Li, Yuan-Feng Zhu
Gene selection and sample classification based on gene expression data are important research areas in bioinformatics. Selecting important genes closely related to classification is a challenging task due to high dimensionality and small sample size of microarray data. Extended rough set based on neighborhood has been successfully applied to gene selection, as it can select attributes without redundancy and deal with numerical attributes directly. However, the computation of approximations in rough set is extremely time consuming...
May 17, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28543849/abiotic-stress-stress-combinations-and-crop-improvement-potential
#7
EDITORIAL
Olivier Loudet, Paul Michael Hasegawa
No abstract text is available yet for this article.
June 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28542282/expression-patterns-of-members-of-the-ethylene-signaling-related-gene-families-in-response-to-dehydration-stresses-in-cassava
#8
Meng Yun Ren, Ren Jun Feng, Hou Rui Shi, Li Fang Lu, Tian Yan Yun, Ming Peng, Xiao Guan, Heng Zhang, Jing Yi Wang, Xi Yan Zhang, Cheng Liang Li, Yan Jun Chen, Peng He, Yin Dong Zhang, Jiang Hui Xie
Drought is the one of the most important environment stresses that restricts crop yield worldwide. Cassava (Manihot esculenta Crantz) is an important food and energy crop that has many desirable traits such as drought, heat and low nutrients tolerance. However, the mechanisms underlying drought tolerance in cassava are unclear. Ethylene signaling pathway, from the upstream receptors to the downstream transcription factors, plays important roles in environmental stress responses during plant growth and development...
2017: PloS One
https://www.readbyqxmd.com/read/28541504/e3-ubiquitin-ligases-ubiquitous-actors-in-plant-development-and-abiotic-stress-responses
#9
Kai Shu, Wenyu Yang
Understanding the precise regulatory mechanisms of plant development and stress responses at the post-translational level is currently a topic of intensive research. Protein ubiquitination, including the sequential performances of ubiquitin-activating (E1), ubiquitin-conjugating (E2) and ubiquitin ligase (E3) enzymes, is a refined post-translational modification ubiquitous in all eukaryotes. Plants are an integral part of our ecosystem and, as sessile organisms, the ability to perceive internal and external signals and to adapt well to various environmental challenges is crucial for their survival...
May 25, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28540554/understanding-brassinosteroid-regulated-mechanisms-to-improve-stress-tolerance-in-plants-a-critical-review
#10
Fahim Nawaz, Muhammad Naeem, Bilal Zulfiqar, Asim Akram, Muhammad Yasin Ashraf, Muhammad Raheel, Rana Nauman Shabbir, Rai Altaf Hussain, Irfan Anwar, Muhammad Aurangzaib
Brassinosteroids (BRs) are steroidal plant hormones involved in regulation of physiological and molecular processes to ameliorate various biotic and abiotic stresses. Exogenous application of BRs to improve stress tolerance in plants has recently become a high research priority. Several studies have revealed the involvement of these steroidal hormones in upregulation of stress-related defense genes and their cross talk with other metabolic pathways. This is likely to stimulate research on many unanswered questions regarding their role in enhancing the ability of plants to tolerate adverse environmental conditions...
May 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28540497/large-scale-transcriptome-analysis-reveals-arabidopsis-metabolic-pathways-are-frequently-influenced-by-different-pathogens
#11
Zhenhong Jiang, Fei He, Ziding Zhang
Through large-scale transcriptional data analyses, we highlighted the importance of plant metabolism in plant immunity and identified 26 metabolic pathways that were frequently influenced by the infection of 14 different pathogens. Reprogramming of plant metabolism is a common phenomenon in plant defense responses. Currently, a large number of transcriptional profiles of infected tissues in Arabidopsis (Arabidopsis thaliana) have been deposited in public databases, which provides a great opportunity to understand the expression patterns of metabolic pathways during plant defense responses at the systems level...
May 24, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28539916/endophytic-fungi-piriformospora-indica-mediated-protection-of-host-from-arsenic-toxicity
#12
Shayan Mohd, Jagriti Shukla, Aparna S Kushwaha, Kapil Mandrah, Jai Shankar, Nidhi Arjaria, Prem N Saxena, Ram Narayan, Somendu K Roy, Manoj Kumar
Complex intercellular interaction is a common theme in plant-pathogen/symbiont relationship. Cellular physiology of both the partners is affected by abiotic stress. However, little is known about the degree of protection each offers to the other from different types of environmental stress. Our current study focused on the changes in response to toxic arsenic in the presence of an endophytic fungus Piriformospora indica that colonizes the paddy roots. The primary impact of arsenic was observed in the form of hyper-colonization of fungus in the host root and resulted in the recovery of its overall biomass, root damage, and chlorophyll due to arsenic toxicity...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28538728/the-sunflower-genome-provides-insights-into-oil-metabolism-flowering-and-asterid-evolution
#13
Hélène Badouin, Jérôme Gouzy, Christopher J Grassa, Florent Murat, S Evan Staton, Ludovic Cottret, Christine Lelandais-Brière, Gregory L Owens, Sébastien Carrère, Baptiste Mayjonade, Ludovic Legrand, Navdeep Gill, Nolan C Kane, John E Bowers, Sariel Hubner, Arnaud Bellec, Aurélie Bérard, Hélène Bergès, Nicolas Blanchet, Marie-Claude Boniface, Dominique Brunel, Olivier Catrice, Nadia Chaidir, Clotilde Claudel, Cécile Donnadieu, Thomas Faraut, Ghislain Fievet, Nicolas Helmstetter, Matthew King, Steven J Knapp, Zhao Lai, Marie-Christine Le Paslier, Yannick Lippi, Lolita Lorenzon, Jennifer R Mandel, Gwenola Marage, Gwenaëlle Marchand, Elodie Marquand, Emmanuelle Bret-Mestries, Evan Morien, Savithri Nambeesan, Thuy Nguyen, Prune Pegot-Espagnet, Nicolas Pouilly, Frances Raftis, Erika Sallet, Thomas Schiex, Justine Thomas, Céline Vandecasteele, Didier Varès, Felicity Vear, Sonia Vautrin, Martin Crespi, Brigitte Mangin, John M Burke, Jérôme Salse, Stéphane Muños, Patrick Vincourt, Loren H Rieseberg, Nicolas B Langlade
The domesticated sunflower, Helianthus annuus L., is a global oil crop that has promise for climate change adaptation, because it can maintain stable yields across a wide variety of environmental conditions, including drought. Even greater resilience is achievable through the mining of resistance alleles from compatible wild sunflower relatives, including numerous extremophile species. Here we report a high-quality reference for the sunflower genome (3.6 gigabases), together with extensive transcriptomic data from vegetative and floral organs...
May 22, 2017: Nature
https://www.readbyqxmd.com/read/28537535/ethephon-increases-photosynthetic-nitrogen-use-efficiency-proline-and-antioxidant-metabolism-to-alleviate-decrease-in-photosynthesis-under-salinity-stress-in-mustard
#14
Noushina Iqbal, Shahid Umar, Tasir S Per, Nafees A Khan
Salinity is a serious threat to plant growth and development worldwide reducing agricultural productivity each year. Ethylene is an important phytohormone that affects plants performance under normal and abiotic stress conditions. In this study, role of ethylene was investigated in mitigating salinity stress (100 mM NaCl) effects on photosynthesis in mustard plants subjected to different nitrogen (N; 5 and 10 mM) levels. Plants under salinity stress exhibited marked increase in proline and reduced glutathione (GSH) content and activity of antioxidant enzymes...
May 24, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28536792/cotton-gherf38-gene-is-involved-in-plant-response-to-salt-drought-and-aba
#15
Liufeng Ma, Longxing Hu, Jibiao Fan, Erick Amombo, A B M Khaldun, Yong Zheng, Liang Chen
ERF (ethylene-responsive factor) transcription factors play important roles in plant stress signaling transduction pathways. However, their specific roles during diverse abiotic stresses tolerance in Gossypium hirsutum are largely unknown. Here, a novel ERF transcription factor, designated GhERF38, homologous to AtERF38 in Arabidopsis, was isolated from cotton (Gossypium hirsutum L). GhERF38 expression was up-regulated by salt, drought and ABA treatments. Subcellular localization results indicated that GhERF38 was localized in the cell nucleus...
May 23, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28536596/sorghum-landrace-collections-from-cooler-regions-of-the-world-exhibit-magnificent-genetic-differentiation-and-early-season-cold-tolerance
#16
Frank Maulana, Dilooshi Weerasooriya, Tesfaye Tesso
Cold temperature is an important abiotic stress affecting sorghum production in temperate regions. It reduces seed germination, seedling emergence and seedling vigor thus limiting the production of the crop both temporally and spatially. The objectives of this study were (1) to assess early season cold temperature stress response of sorghum germplasm from cooler environments and identify sources of tolerance for use in breeding programs, (2) to determine population structure and marker-trait association among these germplasms for eventual development of marker tools for improving cold tolerance...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28536595/transgenic-strategies-for-enhancement-of-nematode-resistance-in-plants
#17
REVIEW
Muhammad A Ali, Farrukh Azeem, Amjad Abbas, Faiz A Joyia, Hongjie Li, Abdelfattah A Dababat
Plant parasitic nematodes (PPNs) are obligate biotrophic parasites causing serious damage and reduction in crop yields. Several economically important genera parasitize various crop plants. The root-knot, root lesion, and cyst nematodes are the three most economically damaging genera of PPNs on crops within the family Heteroderidae. It is very important to devise various management strategies against PPNs in economically important crop plants. Genetic engineering has proven a promising tool for the development of biotic and abiotic stress tolerance in crop plants...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28536594/whole-genome-identification-and-expression-pattern-of-the-vicinal-oxygen-chelate-family-in-rapeseed-brassica-napus-l
#18
Yu Liang, Neng Wan, Zao Cheng, Yufeng Mo, Baolin Liu, Hui Liu, Nadia Raboanatahiry, Yongtai Yin, Maoteng Li
Vicinal oxygen chelate proteins (VOC) are members of the metalloenzyme superfamily, which plays roles in many biological reactions. Some members of the VOC superfamily have been systematically characterized but not in Brassica napus. In this study, 38 VOC genes were identified based on their conserved domains. The present results revealed that most of the BnaVOC genes have few introns, and all contained the typical VOC structure of βαβββ modules. The BnaVOC genes are distributed unevenly across 15 chromosomes in B...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28536593/molecular-characterization-and-expression-profiling-of-brachypodium-distachyon-l-cystatin-genes-reveal-high-evolutionary-conservation-and-functional-divergence-in-response-to-abiotic-stress
#19
Saminathan Subburaj, Dong Zhu, Xiaohui Li, Yingkao Hu, Yueming Yan
Cystatin is a class of proteins mainly involved in cysteine protease inhibition and plant growth and development, as well as tolerance under various abiotic stresses. In this study, we performed the first comprehensive analysis of the molecular characterization and expression profiling in response to various abiotic stresses of the cystatin gene family in Brachypodium distachyon, a novel model plant for Triticum species with huge genomes. Comprehensive searches of the Brachypodium genome database identified 25 B...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28536588/a-novel-wheat-c-bzip-gene-tabzip14-b-participates-in-salt-and-freezing-tolerance-in-transgenic-plants
#20
Lina Zhang, Lichao Zhang, Chuan Xia, Lifeng Gao, Chenyang Hao, Guangyao Zhao, Jizeng Jia, Xiuying Kong
The group C-bZIP transcription factors (TFs) are involved in diverse biological processes, such as the regulation of seed storage protein (SSP) production and the responses to pathogen challenge and abiotic stress. However, our knowledge of the abiotic functions of group C-bZIP genes in wheat remains limited. Here, we present the function of a novel TabZIP14-B gene in wheat. This gene belongs to the group C-bZIP TFs and contains six exons and five introns; three haplotypes were identified among accessions of tetraploid and hexaploid wheat...
2017: Frontiers in Plant Science
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