keyword
MENU ▼
Read by QxMD icon Read
search

drought stress

keyword
https://www.readbyqxmd.com/read/29145069/the-sultr-gene-family-in-maize-zea-mays-l-gene-cloning-and-expression-analyses-under-sulfate-starvation-and-abiotic-stress
#1
Qin Huang, Meiping Wang, Zongliang Xia
Sulfur is an essential macronutrient required for plant growth, development and stress responses. The family of sulfate transporters (SULTRs) mediates the uptake and translocation of sulfate in higher plants. However, basic knowledge of the SULTR gene family in maize (Zea mays L.) is scarce. In this study, a genome-wide bioinformatic analysis of SULTR genes in maize was conducted, and the developmental expression patterns of the genes and their responses to sulfate starvation and abiotic stress were further investigated...
November 10, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29143606/metabolic-pathways-and-genes-identified-by-rna-seq-analysis-of-barley-near-isogenic-lines-differing-by-allelic-state-of-the-black-lemma-and-pericarp-blp-gene
#2
Anastasiya Y Glagoleva, Nikolay A Shmakov, Olesya Y Shoeva, Gennady V Vasiliev, Natalia V Shatskaya, Andreas Börner, Dmitry A Afonnikov, Elena K Khlestkina
BACKGROUND: Some plant species have 'melanin-like' black seed pigmentation. However, the chemical and genetic nature of this 'melanin-like' black pigment have not yet been fully explored due to its complex structure and ability to withstand almost all solvents. Nevertheless, identification of genetic networks participating in trait formation is key to understanding metabolic processes involved in the expression of 'melanin-like' black seed pigmentation. The aim of the current study was to identify differentially expressed genes (DEGs) in barley near-isogenic lines (NILs) differing by allelic state of the Blp (black lemma and pericarp) locus...
November 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29141954/tropical-drosophila-ananassae-of-wet-dry-seasons-show-cross-resistance-to-heat-drought-and-starvation
#3
Chanderkala Lambhod, Ankita Pathak, Ashok K Munjal, Ravi Parkash
Plastic responses to multiple environmental stressors in wet or dry seasonal populations of tropical Drosophila species have received less attention. We tested plastic effects of heat hardening, acclimation to drought or starvation, and changes in trehalose, proline and body lipids in Drosophila ananassae flies reared under wet or dry season-specific conditions. Wet season flies revealed significant increase in heat knockdown, starvation resistance and body lipids after heat hardening. However, accumulation of proline was observed only after desiccation acclimation of dry season flies while wet season flies elicited no proline but trehalose only...
November 15, 2017: Biology Open
https://www.readbyqxmd.com/read/29140297/a-proteomic-approach-to-investigate-the-drought-response-in-the-orphan-crop-eragrostis-tef
#4
Rizqah Kamies, Jill M Farrant, Zerihun Tadele, Gina Cannarozzi, Mohammed Suhail Rafudeen
The orphan crop, Eragrostis tef, was subjected to controlled drought conditions to observe the physiological parameters and proteins changing in response to dehydration stress. Physiological measurements involving electrolyte leakage, chlorophyll fluorescence and ultra-structural analysis showed tef plants tolerated water loss to 50% relative water content (RWC) before adverse effects in leaf tissues were observed. Proteomic analysis using isobaric tag for relative and absolute quantification (iTRAQ) mass spectrometry and appropriate database searching enabled the detection of 5727 proteins, of which 211 proteins, including a number of spliced variants, were found to be differentially regulated with the imposed stress conditions...
November 15, 2017: Proteomes
https://www.readbyqxmd.com/read/29135981/pioneer-cells-established-by-the-swi-prion-can-promote-dispersal-and-out-crossing-in-yeast
#5
Gregory A Newby, Susan Lindquist
To thrive in an ever-changing environment, microbes must widely distribute their progeny to colonize new territory. Simultaneously, they must evolve and adapt to the stresses of unpredictable surroundings. In both of these regards, diversity is key-if an entire population moved together or responded to the environment in the same way, it could easily go extinct. Here, we show that the epigenetic prion switch [SWI+] establishes a specialized subpopulation with a "pioneer" phenotypic program in Saccharomyces cerevisiae...
November 2017: PLoS Biology
https://www.readbyqxmd.com/read/29134149/the-response-of-soil-microbial-communities-to-variation-in-annual-precipitation-depends-on-soil-nutritional-status-in-an-oligotrophic-desert
#6
Cristina Montiel-González, Yunuen Tapia-Torres, Valeria Souza, Felipe García-Oliva
Background: Soil microbial communities (SMC) play a central role in the structure and function of desert ecosystems. However, the high variability of annual precipitation could results in the alteration of SMC and related biological processes depending on soil water potential. The nature of the physiological adjustments made by SMC in order to obtain energy and nutrients remains unclear under different soil resource availabilities in desert ecosystems. In order to examine this dynamic, the present study examined the effects of variation in annual precipitation on physiological adjustments by the SMC across two vegetation-soil systems of different soil organic matter input in an oligotrophic desert ecosystem...
2017: PeerJ
https://www.readbyqxmd.com/read/29133823/identification-of-mirna-mediated-drought-responsive-multi-tiered-regulatory-network-in-drought-tolerant-rice-nagina-22
#7
Sonia Balyan, Mukesh Kumar, Roseeta Devi Mutum, Utkarsh Raghuvanshi, Priyanka Agarwal, Saloni Mathur, Saurabh Raghuvanshi
Comparative characterization of microRNA-mediated stress regulatory networks in contrasting rice cultivars is critical to decipher plant stress response. Consequently, a multi-level comparative analysis, using sRNA sequencing, degradome analysis, enzymatic and metabolite assays and metal ion analysis, in drought tolerant and sensitive rice cultivars was conducted. The study identified a group of miRNAs "Cultivar-specific drought responsive" (CSDR)-miRNAs (osa-miR159f, osa-miR1871, osa-miR398b, osa-miR408-3p, osa-miR2878-5p, osa-miR528-5p and osa-miR397a) that were up-regulated in the flag-leaves of tolerant cultivar, Nagina 22 (N22) and Vandana, but down-regulated in the sensitive cultivar, Pusa Basmati 1 (PB1) and IR64, during drought...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29133124/proteomic-approaches-to-uncover-the-flooding-and-drought-stress-response-mechanisms-in-soybean
#8
REVIEW
Xin Wang, Setsuko Komatsu
Soybean is the important crop with abundant protein, vegetable oil, and several phytochemicals. With such predominant values, soybean is cultivated with a long history. However, flooding and drought stresses exert deleterious effects on soybean growth. The present review summarizes the morphological changes and affected events in soybean exposed to such extreme-water conditions. Sensitive organ in stressed soybean at different-developmental stages is presented based on protein profiles. Protein quality control and calcium homeostasis in the endoplasmic reticulum are discussed in soybean under both stresses...
November 10, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/29131815/the-karrikin-receptor-kai2-promotes-drought-resistance-in-arabidopsis-thaliana
#9
Weiqiang Li, Kien Huu Nguyen, Ha Duc Chu, Chien Van Ha, Yasuko Watanabe, Yuriko Osakabe, Marco Antonio Leyva-González, Mayuko Sato, Kiminori Toyooka, Laura Voges, Maho Tanaka, Mohammad Golam Mostofa, Motoaki Seki, Mitsunori Seo, Shinjiro Yamaguchi, David C Nelson, Chunjie Tian, Luis Herrera-Estrella, Lam-Son Phan Tran
Drought causes substantial reductions in crop yields worldwide. Therefore, we set out to identify new chemical and genetic factors that regulate drought resistance in Arabidopsis thaliana. Karrikins (KARs) are a class of butenolide compounds found in smoke that promote seed germination, and have been reported to improve seedling vigor under stressful growth conditions. Here, we discovered that mutations in KARRIKIN INSENSITIVE2 (KAI2), encoding the proposed karrikin receptor, result in hypersensitivity to water deprivation...
November 13, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29127881/grapevine-immune-signaling-network-in-response-to-drought-stress-as-revealed-by-transcriptomic-analysis
#10
Muhammad S Haider, Mahantesh M Kurjogi, M Khalil-Ur-Rehman, Muhammad Fiaz, Tariq Pervaiz, Songtao Jiu, Jia Haifeng, Wang Chen, Jinggui Fang
Drought is a ubiquitous abiotic factor that severely impedes growth and development of horticulture crops. The challenge postured by global climate change is the evolution of drought-tolerant cultivars that could cope with concurrent stress. Hence, in this study, biochemical, physiological and transcriptome analysis were investigated in drought-treated grapevine leaves. The results revealed that photosynthetic activity and reducing sugars were significantly diminished which were positively correlated with low stomatal conductance and CO2 exchange in drought-stressed leaves...
October 31, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29126265/stomatal-and-growth-responses-to-hydraulic-and-chemical-changes-induced-by-progressive-soil-drying
#11
Xiaoqing Li, Sally Wilkinson, Jianbo Shen, Brian G Forde, William J Davies
A better understanding of physiological responses of crops to drought stress is important for ensuring sustained crop productivity under climate change. Here, we studied the effect on 15-day-old maize (Zea mays L.) plants of a 6 d non-lethal period of soil drying [soil water potential (SWP) decreased from -0.20 MPa to -0.81 MPa]. Root growth was initially stimulated during drying (when SWP decreased from -0.31 MPa to -0.38 MPa, compared with -0.29 MPa in well-watered pots), followed by inhibition during Days 5-6 (SWP from -0...
November 6, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29125669/the-role-of-arabidopsis-thaliana-rasd1-gene-in-aba-dependent-abiotic-stress-response
#12
Varvara Podia, Dimitra Milioni, Maria Martzikou, Kosmas Haralampidis
Abiotic stress is one of the key parameters affecting plant productivity. Drought and soil salinity, in particular, challenge the plants to activate various response mechanisms to withstand these adverse growth conditions. While the molecular events that take place are complex and to a large extent unclear, the plant hormone abscisic acid (ABA) is considered as a major player in mediating the adaptation of plants to stress. Here we report on the identification of an ABA insensitive mutant from Arabidopsis thaliana...
November 10, 2017: Plant Biology
https://www.readbyqxmd.com/read/29124652/red-shift-in-the-spectrum-of-a-chlorophyll-species-is-essential-for-the-drought-induced-dissipation-of-excess-light-energy-in-a-poikilohydric-moss-bryum-argenteum
#13
Yutaka Shibata, Ahmed Mohamed, Koichiro Taniyama, Kentaro Kanatani, Makiko Kosugi, Hiroshi Fukumura
Some mosses are extremely tolerant of drought stress. Their high drought tolerance relies on their ability to effectively dissipate absorbed light energy to heat under dry conditions. The energy dissipation mechanism in a drought-tolerant moss, Bryum argenteum, has been investigated using low-temperature picosecond time-resolved fluorescence spectroscopy. The results are compared between moss thalli samples harvested in Antarctica and in Japan. Both samples show almost the same quenching properties, suggesting an identical drought tolerance mechanism for the same species with two completely different habitats...
November 9, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/29123538/sex-specific-response-to-stress-in-populus
#14
REVIEW
Nataliya V Melnikova, Elena V Borkhert, Anastasiya V Snezhkina, Anna V Kudryavtseva, Alexey A Dmitriev
Populus is an effective model for genetic studies in trees. The genus Populus includes dioecious species, and the differences exhibited in males and females have been intensively studied. This review focused on the distinctions between male and female poplar and aspen plants under stress conditions, such as drought, salinity, heavy metals, and nutrient deficiency on morphological, physiological, proteome, and gene expression levels. In most studies, males of Populus species were more adaptive to the majority of the stress conditions and showed less damage, better growth, and higher photosynthetic capacity and antioxidant activity than that of the females...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29121241/suppressing-type-2c-protein-phosphatases-alters-fruit-ripening-and-the-stress-response-in-tomato
#15
Yushu Zhang, Qian Li, Li Jiang, Wenbin Kai, Bin Liang, Juan Wang, Yangwei Du, Xiawan Zhai, Jieling Wang, Yingqi Zhang, Yufei Sun, Lusheng Zhang, Ping Leng
Although abscisic acid (ABA) signalling has been widely studied in Arabidopsis, the roles of core ABA signalling components in fruit remain poorly understood. Herein, we characterise SlPP2C1, a group A type 2C protein phosphatase that negatively regulates ABA signalling and fruit ripening in tomato. The SlPP2C1 protein was localised in the cytoplasm close to AtAHG3/AtPP2CA. The SlPP2C1 gene was expressed in all tomato tissues throughout development, particularly in flowers and fruits, and it was up-regulated by dehydration and ABA treatment...
November 7, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29120782/targeted-secondary-metabolic-and-physico-chemical-traits-analysis-to-assess-genetic-variability-within-a-germplasm-collection-of-long-storage-tomatoes
#16
Laura Siracusa, Cristina Patanè, Valeria Rizzo, Salvatore Luciano Cosentino, Giuseppe Ruberto
"Long storage" tomato is a crop traditionally cultivated in the Mediterranean area under no water supply, that recently has attracted the interest of breeders for its high tolerance to drought and as potential genetic source in breeding programs for water stress resistance. A collection of 28 genotypes of "long storage" tomato (Solanum lycopersicum L.) was studied for carotenoid and polyphenol profile and content, vitamin C, and other physico-chemical traits of fruits. Tomato carotenoids and polyphenols were identified and quantified using high-performance liquid chromatography coupled with diode array detection and electrospray-mass spectrometry (HPLC/DAD/ESI-MS); nineteen different phenolic compounds and six different carotenoids, for a total of 25 markers, have been detected, quantified and used to discriminate among the different landraces to find out which could be the best candidate for a medium-to-large scale cultivation...
April 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29119268/gene-structure-expression-pattern-and-interaction-of-nuclear-factor-y-family-in-castor-bean-ricinus-communis
#17
Yue Wang, Wei Xu, Zexi Chen, Bing Han, Mohammad E Haque, Aizhong Liu
Nuclear Factor-Y transcription factors, which function in regulating seed development (including storage reservoir accumulation) and responding to abiotic stresses, were identified and characterized in castor bean. Nuclear Factor-Y (NF-Y) transcription factors in plants contain three subunits (NF-YA, NF-YB and NF-YC), and function as a heterodimer or heterotrimer complex in regulating plant growth, development and response to stresses. Castor bean (Ricinus communis, Euphorbiaceae) one of the most economically important non-edible oilseed crops, able to grow in diverse soil conditions and displays high tolerance to abiotic stresses...
November 8, 2017: Planta
https://www.readbyqxmd.com/read/29118776/design-of-a-custom-rt-qpcr-array-for-assignment-of-abiotic-stress-tolerance-in-traditional-portuguese-grapevine-varieties
#18
Luísa C Carvalho, Marília Silva, João L Coito, Margarida P Rocheta, Sara Amâncio
Widespread agricultural losses attributed to drought, often combined with high temperatures, frequently occur in the field, namely in Mediterranean climate areas, where the existing scenarios for climate change indicate an increase in the frequency of heat waves and severe drought events in summer. Grapevine (Vitis vinifera L.) is the most cultivated fruit species in the world and the most valuable one and is a traditional Mediterranean species. Currently, viticulture must adjust to impending climate changes that are already pushing vine-growers toward the use of ancient and resilient varieties...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29116579/gene-encoding-vesicle-associated-membrane-protein-associated-protein-from-triticum-aestivum-tavap-confers-tolerance-to-drought-stress
#19
Brinderjit Singh, Paramjit Khurana, Jitendra P Khurana, Prabhjeet Singh
Abiotic stresses like drought, salinity, high and low temperature, and submergence are major factors that limit the crop productivity. Hence, identification of genes associated with stress response in crops is a prerequisite for improving their tolerance to adverse environmental conditions. In an earlier study, we had identified a drought-inducible gene, vesicle-associated membrane protein-associated protein (TaVAP), in developing grains of wheat. In this study, we demonstrate that TaVAP is able to complement yeast and Arabidopsis mutants, which are impaired in their respective orthologs, signifying functional conservation...
November 7, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29116534/on-the-interactions-among-tropospheric-ozone-levels-and-typical-environmental-stresses-challenging-mediterranean-crops
#20
Massimo Fagnano, Albino Maggio
The main environmental stresses of Italian croplands are discussed in relation to their interactions with ozone effects on crops. Water deficit and salinization are frequent in Mediterranean environments during spring-summer causing a decrease of soil water potential and water uptake by roots and consequently stomatal closure. These stresses also stimulate secondary metabolism and antioxidant accumulation, which also serves as a stress protection mechanism. High concentrations of tropospheric ozone are common all over Italy during the spring-summer season...
November 7, 2017: Environmental Science and Pollution Research International
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"