keyword
MENU ▼
Read by QxMD icon Read
search

drought stress

keyword
https://www.readbyqxmd.com/read/28926798/cloning-and-expression-profiling-of-the-pacsnrk2-and-pacpp2c-gene-families-during-fruit-development-aba-treatment-and-dehydration-stress-in-sweet-cherry
#1
Xinjie Shen, Xiao Guo, Di Zhao, Qiang Zhang, Yuzhuang Jiang, Yantao Wang, Xiang Peng, Yan Wei, Zefeng Zhai, Wei Zhao, Tianhong Li
Plant SNF1-related protein kinase 2 (SnRK2) and protein phosphatase 2C (PP2C) family members are core components of the ABA signal transduction pathway. SnRK2 and PP2C proteins have been suggested to play crucial roles in fruit ripening and improving plant tolerance to drought stress, but supporting genetic information has been lacking in sweet cherry (Prunus avium L.). Here, we cloned six full-length SnRK2 genes and three full-length PP2C genes from sweet cherry cv. Hong Deng. Quantitative PCR analysis revealed that PacSnRK2...
September 6, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28926624/molecular-characterization-expression-analysis-and-heterologous-expression-of-two-translationally-controlled-tumor-protein-genes-from-cucumis-sativus
#2
Xiang Nan Meng, Qiu Min Chen, Hai Yan Fan, Tie Feng Song, Na Cui, Ju Yong Zhao, Shu Min Jia, Ke Xin Meng
The translationally controlled tumor protein (TCTP) is a family of abundant and ubiquitous proteins involved in several important primary functions. Cucumbers harbor two TCTP genes, CsTCTP1 and CsTCTP2; however, their functional roles remain unclear. In this study, we isolated CsTCTP1 and CsTCTP2 (XP-004134215 and XP-004135602, respectively) promoters, full-length cDNA and genomic sequences from Cucumis sativus. Bioinformatics analysis, containing cis-acting elements, structural domains, phylogenetic tree and conserved motifs, suggested the conservation and divergence of CsTCTP1 and CsTCTP2, thus providing knowledge regarding their functions...
2017: PloS One
https://www.readbyqxmd.com/read/28923951/bpm-cul3-e3-ligase-modulates-thermotolerance-by-facilitating-negative-regulatory-domain-mediated-degradation-of-dreb2a-in-arabidopsis
#3
Kyoko Morimoto, Naohiko Ohama, Satoshi Kidokoro, Junya Mizoi, Fuminori Takahashi, Daisuke Todaka, Junro Mogami, Hikaru Sato, Feng Qin, June-Sik Kim, Yoichiro Fukao, Masayuki Fujiwara, Kazuo Shinozaki, Kazuko Yamaguchi-Shinozaki
DEHYDRATION-RESPONSIVE ELEMENT BINDING PROTEIN 2A (DREB2A) acts as a key transcription factor in both drought and heat stress tolerance in Arabidopsis and induces the expression of many drought- and heat stress-inducible genes. Although DREB2A expression itself is induced by stress, the posttranslational regulation of DREB2A, including protein stabilization, is required for its transcriptional activity. The deletion of a 30-aa central region of DREB2A known as the negative regulatory domain (NRD) transforms DREB2A into a stable and constitutively active form referred to as DREB2A CA...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923923/hydrologic-regulation-of-plant-rooting-depth
#4
Ying Fan, Gonzalo Miguez-Macho, Esteban G Jobbágy, Robert B Jackson, Carlos Otero-Casal
Plant rooting depth affects ecosystem resilience to environmental stress such as drought. Deep roots connect deep soil/groundwater to the atmosphere, thus influencing the hydrologic cycle and climate. Deep roots enhance bedrock weathering, thus regulating the long-term carbon cycle. However, we know little about how deep roots go and why. Here, we present a global synthesis of 2,200 root observations of >1,000 species along biotic (life form, genus) and abiotic (precipitation, soil, drainage) gradients. Results reveal strong sensitivities of rooting depth to local soil water profiles determined by precipitation infiltration depth from the top (reflecting climate and soil), and groundwater table depth from below (reflecting topography-driven land drainage)...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28922767/photosynthetic-and-metabolic-acclimation-to-repeated-drought-events-play-key-roles-in-drought-tolerance-in-coffee
#5
Paulo E Menezes-Silva, Lilian M V P Sanglard, Rodrigo T Ávila, Leandro E Morais, Samuel C V Martins, Priscilla Nobres, Camila M Patreze, Marcio A Ferreira, Wagner L Araújo, Alisdair R Fernie, Fábio M DaMatta
Over the last decades, most information on the mechanisms underlying tolerance to drought has been gained by considering this stress as a single event that happens just once in the life of a plant, in contrast to what occurs under natural conditions where recurrent drought episodes are the rule. Here we explored mechanisms of drought tolerance in coffee (Coffea canephora) plants from a broader perspective, integrating key aspects of plant physiology and biochemistry. We show that plants exposed to multiple drought events displayed higher photosynthetic rates, which were largely accounted for by biochemical rather than diffusive or hydraulic factors, than those submitted to drought for the first time...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922763/chicory-r2r3-myb-transcription-factors-cimyb5-and-cimyb3-regulate-fructan-1-exohydrolase-expression-in-response-to-abiotic-stress-and-hormonal-cues
#6
Hongbin Wei, Hongbo Zhao, Tao Su, Anja Bausewein, Steffen Greiner, Karsten Harms, Thomas Rausch
In the biennial Cichorium intybus, inulin-type fructans accumulate in the taproot during the first year. Upon cold or drought exposure, fructans are degraded by fructan exohydrolases, affecting inulin yield and degree of polymerization. While stress-induced expression of 1-FEH genes has been thoroughly explored, the transcriptional network mediating these responses has remained unknown. In this study, several R2R3-MYB transcriptional regulators were analysed for their possible involvement in 1-FEH regulation via transient transactivation of 1-FEH target promoters and for in vivo co-expression with target genes under different stress and hormone treatments...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922744/sugar-transporters-in-plants-new-insights-and-discoveries
#7
Benjamin T Julius, Kristen A Leach, Thu M Tran, Rachel A Mertz, David M Braun
Carbohydrate partitioning is the process of carbon assimilation and distribution from source tissues, such as leaves, to sink tissues, such as stems, roots and seeds. Sucrose, the primary carbohydrate transported long distance in many plant species, is loaded into the phloem and unloaded into distal sink tissues. However, many factors, both genetic and environmental, influence sucrose metabolism and transport. Therefore, understanding the function and regulation of sugar transporters and sucrose metabolic enzymes is key to improving agriculture...
September 1, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28922585/climatic-and-anthropogenic-drivers-of-northern-amazon-fires-during-the-2015-2016-el-ni%C3%A3-o-event
#8
Marisa G Fonseca, Liana O Anderson, Egidio Arai, Yosio E Shimabukuro, Haron A M Xaud, Maristela R Xaud, Nima Madani, Fabien H Wagner, Luiz E O C Aragão
The strong El Niño Southern Oscillation (ENSO) event that occurred in 2015/2016 caused extreme drought in the northern Brazilian Amazon, especially in the state of Roraima, increasing fire occurrence. Here we map the extent of precipitation and fire anomalies and quantify the effects of climatic and anthropogenic drivers on fire occurrence during the 2015/2016 dry season (from December 2015 to March 2016) in the state of Roraima. To achieve these objectives we first estimated the spatial pattern of precipitation anomalies, based on long-term data from the TRMM (Tropical Rainfall Measuring Mission), and the fire anomaly, based on MODIS (Moderate Resolution Imaging Spectroradiometer) active fire detections during the referred period...
September 18, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28922384/effects-of-salinity-and-drought-on-growth-ionic-relations-compatible-solutes-and-activation-of-antioxidant-systems-in-oleander-nerium-oleander-l
#9
Dinesh Kumar, Mohamad Al Hassan, Miguel A Naranjo, Veena Agrawal, Monica Boscaiu, Oscar Vicente
Nerium oleander is an ornamental species of high aesthetic value, grown in arid and semi-arid regions because of its drought tolerance, which is also considered as relatively resistant to salt; yet the biochemical and molecular mechanisms underlying oleander's stress tolerance remain largely unknown. To investigate these mechanisms, one-year-old oleander seedlings were exposed to 15 and 30 days of treatment with increasing salt concentrations, up to 800 mM NaCl, and to complete withholding of irrigation; growth parameters and biochemical markers characteristic of conserved stress-response pathways were then determined in stressed and control plants...
2017: PloS One
https://www.readbyqxmd.com/read/28921773/performance-of-aneuploid-backcross-hybrids-between-the-crop-brassica-napus-and-its-wild-relative-b-rapa
#10
Tom J de Jong, Karla Escobedo Quevedo, Karin C A M van der Veen-van Wijk, Mahmoud Moshgani
Crossings between the diploid wild Brassica rapa (AA, 2n=20) and the tetraploid cultivar B. napus (AACC, 2n=38) can readily be made. Backcrosses to the wild B. rapa (BC1 ) produce aneuploids with variable chromosome numbers between 20 and 29. How does survival and performance relate to DNA content of plants? Growth of the BC1 plants was measured in the lab. One plant in the F1 self-pollinated spontaneously and produced abundant F2 seeds that were also examined. The number of C-chromosomes was estimated from DNA-values obtained with flow cytometry...
September 16, 2017: Plant Biology
https://www.readbyqxmd.com/read/28918554/genome-wide-identification-classification-evolutionary-analysis-and-gene-expression-patterns-of-the-protein-kinase-gene-family-in-wheat-and-aegilops-tauschii
#11
Jun Yan, Peisen Su, Zhaoran Wei, Eviatar Nevo, Lingrang Kong
In this study we systematically identified and classified PKs in Triticum aestivum, Triticum urartu and Aegilops tauschii. Domain distribution and exon-intron structure analyses of PKs were performed, and we found conserved exon-intron structures within the exon phases in the kinase domain. Collinearity events were determined, and we identified various T. aestivum PKs from polyploidizations and tandem duplication events. Global expression pattern analysis of T. aestivum PKs revealed that some PKs might participate in the signaling pathways of stress response and developmental processes...
September 16, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28917144/silicon-improves-seed-germination-and-alleviates-drought-stress-in-lentil-crops-by-regulating-osmolytes-hydrolytic-enzymes-and-antioxidant-defense-system
#12
Sajitha Biju, Sigfredo Fuentes, Dorin Gupta
Silicon (Si) has been widely reported to have beneficial effect on mitigating drought stress in plants. However, the effect of Si on seed germination under drought conditions is still poorly understood. This research was carried out to ascertain the role of Si to abate polyethylene glycol-6000 mediated drought stress on seed germination and seedling growth of lentil. Results showed that drought stress significantly decreased the seed germination traits and increased the concentration of osmolytes (proline, glycine betaine and soluble sugars), reactive oxygen species (hydrogen peroxide and superoxide anion) and lipid peroxides in lentil seedlings...
September 5, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28914489/responses-of-microbial-decomposers-to-drought-in-streams-may-depend-on-the-environmental-context
#13
Sofia Duarte, Juanita Mora-Gómez, Anna M Romaní, Fernanda Cássio, Cláudia Pascoal
A consequence of drought in streams is the emersion of decomposing leaf litter, which may alter organic matter recycling. We assessed the effects of emersion on decomposition of black poplar leaves and associated microbes (microbial biomass, extracellular enzyme activities and microbial diversity) in two streams with distinct characteristics, in particular nutrients, temperature and oxygen levels. Leaf decomposition rates, fungal biomass and extracellular enzyme activities were lower in the most impacted stream (high nutrients and temperature, low oxygen)...
September 15, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28913804/doubled-haploid-laboratory-protocol-for-wheat-using-wheat-maize-wide-hybridization
#14
Meenakshi Santra, Hong Wang, Scott Seifert, Scott Haley
In traditional wheat breeding, the uniformity of lines derived from a breeding population is obtained by repeated selfing from the F1 which takes several generations to reach homozygosity in loci controlling traits of interest. Using doubled haploid technology, however, it is possible to attain 100% homozygosity at all loci in a single generation and completely homogeneous breeding lines can be obtained in 1-2 years. Thus, doubled haploid technology may significantly reduce cultivar development time. Two major methods for producing wheat doubled haploids are androgenesis (anther culture and microspore culture) and embryo culture using wheat-maize wide hybridization, the latter being the most effective and widely used method...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28913795/overview-of-methods-for-assessing-salinity-and-drought-tolerance-of-transgenic-wheat-lines
#15
Rohit Joshi, Khalid Anwar, Priyanka Das, Sneh L Singla-Pareek, Ashwani Pareek
Salinity and drought are interconnected, causing phenotypic, physiological, biochemical, and molecular changes in a cell. These stresses are the major factors adversely affecting growth and productivity in cereals. Genetic engineering methods have advanced to enable development of genotypes with improved salinity and drought tolerance. The resulting transgenic plant produces a group of progenies which includes moderate to high-stress tolerant transgenic lines. Development of reproducible screening methods to identify high-stress tolerant germplasm under laboratory, greenhouse, or field conditions is must...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28913794/wheat-improvement-in-india-present-and-future
#16
Sonia Goel, Kalpana Singh, N K Singh
Wheat (Triticum aestivum L.) contributes substantially to global food and nutritional security. With the growing demands under the constraints of depleting natural resources, environmental fluctuation, and increased risk of epidemic outbreaks, the task of increasing wheat production has become daunting. The factors responsible for first green revolution seem to be exhausting rapidly, and there is an immediate need to develop the technologies which can not only increase the wheat production but also sustain the same at a higher level without adversely affecting the natural resources...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28913792/what-will-be-the-benefits-of-biotech-wheat-for-european-agriculture
#17
Agnès E Ricroch
In European countries, wheat occupies the largest crop area with high yielding production. France, a major producer and exporter in Europe, ranks the fifth producer worldwide. Biotic stresses are European farmers' major challenges (fungal and viral diseases, and insect pests) followed by abiotic ones such as drought and grain protein composition. During the last 40 years, 1136 scientific articles on biotech wheat were published by USA followed by China, Australia, Canada, and European Union with the UK. European research focuses on pests and diseases resistances using widely marker-assisted selection (MAS)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28912792/genotypic-variation-in-yield-yield-components-root-morphology-and-architecture-in-soybean-in-relation-to-water-and-phosphorus-supply
#18
Jin He, Yi Jin, Yan-Lei Du, Tao Wang, Neil C Turner, Ru-Ping Yang, Kadambot H M Siddique, Feng-Min Li
Water shortage and low phosphorus (P) availability limit yields in soybean. Roots play important roles in water-limited and P-deficient environment, but the underlying mechanisms are largely unknown. In this study we determined the responses of four soybean [Glycine max (L.) Merr.] genotypes [Huandsedadou (HD), Bailudou (BLD), Jindou 21 (J21), and Zhonghuang 30 (ZH)] to three P levels [applied 0 (P0), 60 (P60), and 120 (P120) mg P kg(-1) dry soil to the upper 0.4 m of the soil profile] and two water treatment [well-watered (WW) and water-stressed (WS)] with special reference to root morphology and architecture, we compared yield and its components, root morphology and root architecture to find out which variety and/or what kind of root architecture had high grain yield under P and drought stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28910323/comparative-proteomic-analyses-reveal-the-proteome-response-to-short-term-drought-in-italian-ryegrass-lolium-multiflorum
#19
Ling Pan, Zhongfu Yang, Jianping Wang, Pengxi Wang, Xiao Ma, Meiliang Zhou, Ji Li, Nie Gang, Guangyan Feng, Junming Zhao, Xinquan Zhang
Drought is a major abiotic stress that impairs growth and productivity of Italian ryegrass. Comparative analysis of drought responsive proteins will provide insight into molecular mechanism in Lolium multiflorum drought tolerance. Using the iTRAQ-based approach, proteomic changes in tolerant and susceptible lines were examined in response to drought condition. A total of 950 differentially accumulated proteins was found to be involved in carbohydrate metabolism, amino acid metabolism, biosynthesis of secondary metabolites, and signal transduction pathway, such as β-D-xylosidase, β-D-glucan glucohydrolase, glycerate dehydrogenase, Cobalamin-independent methionine synthase, glutamine synthetase 1a, Farnesyl pyrophosphate synthase, diacylglycerol, and inositol 1, 4, 5-trisphosphate, which might contributed to enhance drought tolerance or adaption in Lolium multiflorum...
2017: PloS One
https://www.readbyqxmd.com/read/28903897/ubiquitination-modification-precisely-modulates-the-aba-signaling-pathway-in-plants
#20
Fei-fei Yu, Qi Xie
Protein post-translational modification by ubiquitination is essential for the activity and stability of proteins in the eukaryotic life cycle. In the past few years, it has been found that ubiquitination subtly modulates the abscisic acid (ABA) signaling pathway to regulate plant growth, development and stress responses, such as drought, salinity and cold stress responses. In this review, how the ubiquitin-proteasome system and ubiquitination-related membrane trafficking pathway affect ABA synthesis and signal transduction will be addressed and analysed...
August 20, 2017: Yi Chuan, Hereditas
keyword
keyword
93408
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"